baber/WOPTO huggingface dataset:
Patent GB-233080-A (GB)
Title: Improvements in the manufacture and production of hydrocyanic acid and cyanides
IPC: C01C3/02
Filed: 1924-02-19
Abstract: A catalytic material for the dehydration of formamide or ammonium formate to produce hydrocyanic acid is prepared by applying a paste of manganese carbonate to granulated bauxite and reducing with hydrogen or methanol vapour.  Bauxite poor in iron may also be employed as catalyst.ALSO:Hydrocyanic acid is prepared by passing formamide or ammonium formate or mixtures thereof together with diluent gas over a dehydration catalyst (except that described in Specification 220,771) at an elevated temperature.  The diluent gases mentioned are nitrogen, hydrogen, carbon monoxide, blue water gas, producer gas and ammonia.  When ammonia is employed, the product comprises ammonium cyanide, and free formic acid may then be present in the starting material.  The reaction temperature lies between 300 DEG  and 600 DEG  C., though when ammonia is present the temperature is generally kept below 400 DEG  C.  The hydrocyanic acid or ammonium cyanide may be converted into other cyanides.  According to the examples, (1) formamide is atomized by means of ammonia gas and the mixture then passed over bauxite poor in iron or over a catalyst perpared by applying a paste of manganese carbonate to granulated bauxite or reducing with hydrogen or methanol vapour; another gas such as nitrogen may be employed for the vaporization and ammonia added; the ammonium cyanide produced may be passed into caustic soda to produce sodium cyanide; (2) a mixture of ammonium formate, formamide and formic acid is sprayed through a nozzle or is evaporated by means of a current of ammonia and passed over heated bauxite; the products is absorbed in caustic soda to form sodium cyanide; as starting material, ammonium formate or formic acid or mixtures thereof may be employed; (3) formamide is vaporized in a hot current of nitrogen and passed over heated bauxite poor in iron; the hydrocyanic acid formed may be absorbed in active charcoal or transformed into potassium cyanide by introduction into caustic potash solution.
Patent GB-130559-A (GB)
Title: A Self Driving Gravity Motor.
Inventor: TODD HERBERT LUZERNE
IPC: F03G7/10
Filed: 1919-02-21
Abstract: 130,559. Todd, H. L. Feb. 21, 1919. No Patent granted (Sealing fee not paid). Self-driving machines.-The spokes 10 of a wheel carry sliding weights 12 guided by an eccentric circular race 3.
Patent GB-664267-A (GB)
Title: Improvements in gas lighting devices
IPC: F23Q7/10
Filed: 1949-02-18
Abstract: 664,267. Lighting gas burners electrically. WEBB, J., WEBB, T., and WEBB, M. A. May 17, 1950 [Feb. 18, 1949], No. 4451/49. Class 75(iii) In an electrically ignited gas burner an incandescent filament and a pilot jet tube are arranged as a unit and when the unit is screwed into a holder at the end of a support the jet tube connects with a gas supply passage in the support and the filament connects into a battery circuit. A pilot jet tube d' is secured in the central bore of a threaded plug D and an incandescent filament e is mounted between a rod g<SP>1</SP> welded to the jet tube and a rod g<SP>2</SP> welded to the plug D the filament being at an angle to the jet tube. When the plug D is screwed into holder E on the outside of a tube A upstanding from a base B supporting a battery C' the projecting inner end of the jet tube forms a joint with a transverse passage a in the wall of the tube A and electric contacts for the filament are made by the jet tube contacting the tube A and by the plug contacting the holder E; the jet tube is insulated from the plug. A spring-urged plunger G located in the top of the tube A carries a bridge-piece h for connecting electrically metal conducting members a<SP>2</SP>, a<SP>3</SP> in the battery circuit and the enlarged lower end of the plunger forms a valve member which co-operates with a vertical passage leading to the jet tube to control the gas flow. A cap surrounding the filament and jet tube and secured to the plug D has a ring of air inlets f and a flame aperture F.
Patent GB-535491-A (GB)
Title: Double-walled body for hot gases and vapours under super-atmospheric pressure
IPC: F16L59/147
Filed: 1940-03-11
Abstract: 535,491. Heat insulation. AKT.-GES. FUR TECHNISCHE STUDIEN. March 11, 1940, No. 4517. Convention date, March 10, 1939. [Class 64 (ii)] A pipe 1 for conveying hot gases and vapours at superatmospheric pressure is surrounded by heat insulation 3 within an outer casing 2. Pressure conditions within the pipe and insulation are rapidly equalized by means of tubes 7 the walls of which are finely perforated. Double-walled receptacles in general may be similarly treated. The inner pipe 1 acquires approximately the same temperature as the flowing medium and serves only to convey it, while the outer pipe 2 is kept at a lower temperature which does not impair its strength, and serves to resist the pressure of the flowing medium.
Patent GB-613534-A (GB)
Title: Light sensitive materials
IPC: G03C1/73
Filed: 1946-02-13
Abstract: 613,534. Light-sensitive material. GENERAL ANILINE & FILM CORPORATION. Feb. 13, 1946, No. 4535. Convention date, Feb. 1, 1945. [Class 98 (ii)] Material is light-sensitized with an N-nitroso- N-arylamide. An azo-coupling component may be also incorporated in the material, or the exposed material may be developed with an alkaline solution of the coupling component. Paper, a cellulose or cellulose ester film, glass, textile material, a gelatin-coated surface, or metal may be coated with a composition containing an N-nitroso-N-arylamide, a coupler, a mild acid, and water, or a volatile organic solvent. Self-coupling N-nitroso-N-arylamides such as N-nitroso-N-phenyl-N<1>-#-naphthylurea may be used and developed with ammonia vapour or an alkaline solution. Couplers specified are resorcylic acid, phenol, resorcinol, chromotropic acid, 2: 3-dihydroxynaphthalene, H-acid, R-salt, 2-hydroxy-1-benzenesulphonic acid, 2: 5-dimethyl-6-dimethylaminomethyl-1- phenol, 2 : 3 - hydroxynaphthoylaminoethyl - amide, phloroglucinol, 2: 3-dihydroxy-naphthalene-monohydroxyethyl ether, and #-naphthol- 3: 6-disulphonic acid. The light source for exposure may be a quartz mercury vapour lamp, an incandescent lamp, an arc lamp, or a fluorescent lamp. In example 1, a solution of N-nitroso-N-(p-methoxyphenyl)-urea prepared by adding sodium nitrite to an acetic acid solution of p-methoxyphenylurea is added to an aqueous solution of chromotropic acid or, 2: 3-dihydroxy-naphthalene and the mixture coated on paper and dried. The exposed material is developed with ammonia vapour. In further examples, the procedure is similar, using a mixture of (2) N-nitroso-N-(p-diethylaminophenyl)-urea and resorcylic acid or phenol, and (3) the nitroso derivative of p-phenylenediurea and H-acid. In example 4, N-nitroso-N- phenyl-N<1>-#-naphthylurea, acetic acid, and water is coated on to paper, cloth, or gelatincoated glass, and the exposed material developed with ammonia vapour. In example 5, an acetic acid solution of N-nitroso-N-phenylstearylamide is coated on to a textile base, and the dried and exposed material is developed in an aqueous solution containing R-salt and sodium carbonate.
Patent GB-558679-A (GB)
Title: Improvements in or relating to the manufacture of plasterboard
IPC: D21J1/08
Filed: 1942-04-07
Abstract: 558,679. Waterproofing plasterboard. LEFEBURE, V., ETRIDGE, J. J., HIMSWORTH, F. R., and IMPERIAL CHEMICAL INDUSTRIES. Ltd. April 7, 1942, No. 4536. [Class 140] Plasterboard is waterproofed by dipping in a medium containing a drying-oil or a drying-oilresin composition, and having a viscosity between 50 and 200 centipoises at 15‹C., and thereafter stacking till dry. Hydrocarbon solvents such as white spirit may be used as thinners. Boiled linseed oil, or a mixture of this with phenol-or urea-formaldehyde resin, or with a solution the latter in butyl alcohol may be used as the drying-oil component, and an oil dryer may be added. After stacking a baking process may be carried out.
Patent GB-728177-A (GB)
Title: Improvements in high speed sewing machines
IPC: D05B71/00
Filed: 1953-02-19
Abstract: 728,177. Filters. HESS, O. Feb. 19, 1953, No. 4663/53. Class 46. [Also in Group XXXIV] A straining assembly fitted to the lower end 32 of an oil pump used in the lubrication of a sewing machine (see Group XXXIV) comprises two flanged bushes 54, 55, the bush 54 containing a flexible sieve 56. Between the two bushes are a sieve 57 and a layer 58 of filtering material which may be, for example, filtering paper, cloth or a ceramic substance. Specification 722,291, [Group VII], is referred to.
Patent GB-370114-A (GB)
Title: Improvements in machines used in the breaking of coal, coke, and like materials
IPC: B02C4/32
Filed: 1931-02-16
Abstract: 370,114. Roller mills for crushing coke &c. GREEN, R. W., 16, Lower Oldfield Park, Bath, and ALDRIDGE & RANKEN, Ltd., 39, Victoria Street, London. Feb. 16, 1931, No. 4800. [Class 59.] In a machine for crushing coke &c. comprising a pair of oppositely rotating spiked rollers, the adjustable roll is mounted on rocker arms 10 fixed to a shaft 11 extending across the machine. The fixed roll is mounted on a shaft 4 supported in bearings 8 and the adjustable roll is supported in bearings 9 carried by the arms 10. The rollers are geared together by wheels 14, 15, 17, 18, the wheels 14, 18 being fixed to the roller shafts 4, 5 respectively and the wheels 15, 17 being mounted as idle wheels, the drive being transmitted to the rollers by a pulley 13. The shaft 5 is movable in arcuate slots in the side members of the machine the movement being adjustable by a rod 25 with a bifurcated end 27 pivoted to the arms 10 at 28. The rod 25 passes through a sleeve 22 screwed through a support 21, a spring 24 being interposed between the bifurcated end 27 and the end of the sleeve 22, the compression of the spring being regulated by a nut 23. Movement of a hand-wheel 23 on the sleeve 22 regulates the spacing of the rolls and the spring 24 permits the rolls to be forced apart when unbreakable material passes therebetween.
Patent GB-1355140-A (GB)
Title: Valve body and pipe connection assemblies
IPC: F16L41/00
Filed: 1972-02-02
Abstract: 1355140 Pipe couplings IMI OPELLA Ltd 18 Jan 1973 [2 Feb 1972 15 March 1972] 4834/72 and 12092/72 Heading F2G A valve body 1, such as the body of a plastics mixer tap, is assembled with supply pipes 9, by means of a rigid plate 13 engaging shoulders 10 formed or provided on the pipes. The plate 13 may be secured to the body 1 by means of a ring nut 12 or, alternatively, by self-tapping screws (30, Fig. 3, not shown). When the valve body 1 is of metal the plate 13 may be soldered or brazed thereto.
Patent GB-645078-A (GB)
Title: Improvements in supports or jacks on two-wheeled agricultural trailer machines
IPC: B60S9/08
Filed: 1948-02-18
Abstract: 645,078. Jacking apparatus for vehicles. BAMFORD, C. J., and BAMFORD, H. V. Feb. 18, 1948, No. 4845. [Class 79(iii)] [Also in Group XXXII] In a two wheeled agricultural trailer machine there is provided a jack or support hinged to the draw bar of the machine and retained both in the operative and inoperative positions by spring pressure, the jack passing through a dead centre position in its transition from one position to the other and means being provided for adjusting the spring pressure. As shown applied to a screw jack the draw bar comprises converging members I and a cross bar 12, the members 11 having connected at their intersection plates 13, 14, which latter plate has a rearwardly and downwardly projecting ear 15. Projecting forwardly of the bar 12 is a pair of lugs 16 to which is pivoted by screws 17 a tubular member 19 of the jack. In screw threaded engagement with the member 19 is a standard 20 having a crank 23 at the top and being ball-jointed to a plate 21 at the foot. Projecting forwardly of the member 19 is a pair of lugs 24 to which is pivoted a rod 25 which is in sliding engagement with the ear 15 at the other end. A compression or tension spring 27 is disposed on the rod 25 between the ear and a spring-pressure adjusting nut 26 so that the jack is urged clockwise about the pivots 17 in the operative position shown, this movement being limited by an abutment 29 engaging the cross bar 12. The jack is turned in an anticlockwise direction to the inoperative position shown in dotted lines, the jack passing through the dead centre position of the spring urged rod 25 and the pivots 17 and this rotational movement being limited by a stop 9.
Patent GB-104945-A (GB)
Title: Improvements in or connected with the Manufacture of Bottles or other Hollow Articles of Stoneware and other kinds of Earthenware.
Inventor: CHEAVIN GEORGE WILLIAM
IPC: B28B11/00
Filed: 1916-04-03
Abstract: 104,945. Cheavin, G. W., and Rathbone, H. W. April 3, 1916. Moulds.-Bottles &c. of stoneware and earthenware of rectangular or other angular shape are produced by drawing or squeezing a circular article formed on the potter's wheel through a frame or die a. The edges a<2> may be curved as shown, to produce hollows in the faces of the bottle, and they may be bevelled and faced with metal a<3>, Fig. 4, or they may be formed with rollers a<4>, Fig. 5.
Patent GB-231840-A (GB)
Title: Improvements in or relating to oil cracking stills
Filed: 1925-02-21
Abstract: 231,840. Sinclair Refining Co., (Assignees of Bell, J. E., (Executrix of Bell, J. E.)). April 1, 1924, [Convention date]. Hydrocarbons, cracking.-In tubular oil stills, particularly for cracking oils, the furnace gases are reduced in temperature, by admixture with air or gas, preheated by the waste gases, before being brought into contact with the oil tubes. The gases from a furnace 1 rise through a chamber 2 and pass round a bridge 6, which shields the oil tubes from direct radiation, into a heating chamber 3 containing tubes 7 vertically or horizontally arranged through which oil is passed in countercurrent to the heating gases. The waste gases pass by a flue 4 into a chamber 40 containing tubes 32 down which air or gas is passed to a flue 34 leading to a discharge opening 19 where the preheated gas is mixed with the products of combustion from the furnace 1.
Patent GB-895748-A (GB)
Title: Improvements relating to relay apparatus
Inventor: LEE NORMAN
IPC: B01D35/06
Filed: 1959-02-12
Abstract: 895,748. Filters. KEELAVITE CO. Ltd. Jan. 11, 1960 [Feb. 12, 1959], No. 4974/59. Class 46. [Also in Groups XXXV and XXXVII] A device which is sensitive to the pressure across a filter 20 to operate an indicator or control switch 32 when the filter is blocked comprises a spring-loaded magnetic armature 27 which moves when a magnet 26 is forced away from magnetic inserts 24, 25 in a wall 2 by a pressure sensitive bellows 7. The armature 27 is mounted on a lever 28 pivoted at 31, and when the magnetic circuit is broken by retraction of the magnet 26, it moves with snap-action under the action of spring 30 to operate the switch. Resetting may be automatic or by manual means 33. Magnetic material is excluded from the pressure side of the bellows by a magnetic filter 35.
Patent GB-163483-A (GB)
Title: A connecting piece for connecting up the ends of cast iron and wrought steel or ironrain water pipe and the like
IPC: E04D13/08
Filed: 1920-02-19
Abstract: 163,483. Harvey, S., Clarke, E. R., and Harvey & Co., Ltd., G. A. Feb. 19, 1920. Junction-pieces and the like; sockets for joints, forms of.-A socket piece for connecting a castiron rain-water pipe to one of wrought iron or steel of different thickness, is made of sheet metal such as mild steel sheet and has different diameters at its two ends, which are formed as a spigot and socket respectively. Fig. 2 shows one form of socket.
Patent GB-107362-A (GB)
Title: Improvements in Machines for Grinding Brush-backs or the like.
Inventor: BORR EDVARD ISACKSSON
IPC: B24B7/12
Filed: 1917-04-11
Abstract: 107,362. Borr, E. I. April 11, 1917. Roller apparatus f o r grinding wooden brush backs and other articles of rectangular, or nearly rectangular, section. The articles 7 are fed endways between two grinding-rollers 1, rotating in the direction indicated in Fig. 2, by means of a hand conveyer 6. In their passage between the rollers, the sides of the articles are treated. The top and bottom faces are treated by feeding the articles downwards between the nip of the grinding-rollers by means of feed-rollers 11 carried by spring arms 12, Fig. 1. During this operation, the direction of rotation of the rollers is reversed, and the conveyer 6 is removed and a conveyer 9 inserted to carry away the articles as they drop from the rollers. The ends of the brush backs are treated in a holder 17 which is mounted on a vertical pivot and is adjustable across and to and from the roller.
Patent GB-941240-A (GB)
Title: Improvements relating to metal with fibrous inserts
Inventor: MORLEY JOHN GODFREY
IPC: C03C25/46
Filed: 1961-02-11
Abstract: 941,240. Composite castings. ROLLSROYCE Ltd. Feb. 7, 1962 [Feb. 11, 1961], No. 5187/61. Heading B3F. A material comprises a number of pre-stressed silica fibres embedded, as by casting, in a metallic, e.g. aluminium, matrix.
Patent GB-142959-A (GB)
Title: Internal combustion turbine
IPC: F02C5/12
Filed: 1919-03-03
Abstract: 142,959. Nicholls, R. E. March 3, 1919. Working - fluid supply; arrangement of bearings.-In an internal - combustion turbine, the charge is compressed by three compressors J past valves K<2> and pipes L into three valved combustion chambers A. The discharge valve a<3> of each combustion chamber is periodically opened by an eccentric 11<4> on the turbine shaft 11<7> to deliver the ignited charge to the nozzles F and the turbine F<2>. A spring-loaded sleeve valve a<4> effects a rapid release of the gases on starting. The compressor pistons K are reciprocated by a rotary cam I on the shaft H<8>, which may be connected directly to the shaft H<7> or geared therewith so as to rotate at twice the turbine speed, giving two explosions in each combustion chamber for one revolution of the turbine. The bearing H<1> is arranged outside the casing, and a diaphragm H<6> affords a thrust bearing for the shaft H'. The space between the diaphragm H<6> and a plug H<5> provides an oil bath for the eccentric H<4> or other gear working the valves. 'The number of combustion chambers and compressors may be varied.
Patent GB-458219-A (GB)
Title: Improved tank for petroleum or other liquids
IPC: B65D88/76
Filed: 1936-02-21
Abstract: 458,219. Filling and emptying tanks. PEYROUZE, J., 17, Villa Pilaudo, Asnieres, Seine, France. Feb. 21, 1936, No. 5296. Convention date, March 14, 1935. [Class 21] [See also Group XXIX] In a tank in which a liquid P is stored above a hydraulic seal E, reversible pumps 8, 9 supply and draw off the stored liquid and the liquid of the seal; the pump 9 can be automatically controlled by a float or other device to maintain the level of the seal constant. The pipe 10 leading to the pump 8 may open into a member 11 having its upper edge above the seal liquid, and any seal liquid entering this member may be drawn off at 12.
Patent GB-1100498-A (GB)
Title: Method and apparatus for introducing particulate material into a pneumatic conveying system
Inventor: VANDENHOECK JEAN-PAUL
IPC: B65G53/22
Filed: 1966-02-07
Abstract: 1,100,498. Pneumatic conveyers. BUELL ENGINEERING CO. Inc. 7 Feb., 1966, No. 5305/66. Heading B8A. [Also in Division F1] Material in an annular fluidizing chamber 50, which surrounds a conveying conduit 10 and which is provided with a fluidizing bed 80, passes through an aperture between upper and lower sections 10a, 10b of the conduit 10. A vertically adjustable sleeve 100 formed with an angled bottom portion is provided whereby fluidizing gas diffusing through the fluidizing bed 80 imparts a vertical component of velocity to the particles as they enter the upwardly flowing gas stream in the conduit 10. Material is introduced into the chamber 50 by an inclined delivery trough 62 having a fluidizing bed 66. The conduit 10 is provided with radial plates 18 and with guide vanes 13-16, and surrounding the lower part of the conduit there is a plenum chamber 26 which receives a flow of conveying gas from a fan 40. Any material which is carried out with exhaust gas passing through a labyrinth seal 60 above the bed in the chamber 50 and which is not entrained by gas entering the conduit 10 falls to the conical bottom of the chamber 26 and is entrained by gas being drawn into a conduit 34 which extends through the lower portion of the conduit 10.
Patent GB-1254726-A (GB)
Title: Benzyl alcohol emulsions and their use in making photographic developers
Inventor: KANOUS ROY JAMES
IPC: G03C5/26
Filed: 1969-01-31
Abstract: 1,254,726. Benzyl alcohol emulsion. EASTMAN KODAK CO. 31 Jan., 1969 [1 Feb., 1968; 11 July, 1968], No. 5315/69. Heading B1V. [Also in Divisions C3 and G2] An emulsion comprises water and benzyl alcohol in a ratio by weight of from 1.1:1 to 25:1 and an emulsifying agent which is one or more of the following substances: (i) a water-soluble polymeric carbohydrate, (ii) a water-soluble polymeric amide, (iii) a watersoluble derivative of a polymeric carbohydrate, (iv) a water-soluble derivative of a polymeric amide. The benzyl alcohol may be emulsified in water or the water may be dispersed in the benzyl alcohol. The emulsifying agent may be a starch derivative, a Guar gum, a cellulose derivative (e.g. hydroxyethyl cellulose or carboxymethyl-hydroxyethyl cellulose) or a protein (e.g. gelatin used in example 12). The composition may also contain hydroxylamine sulphate in solution in the aqueous medium.
Patent GB-1503332-A (GB)
Title: Eddy current testing apparatus
IPC: G01N27/90
Filed: 1975-02-10
Abstract: 1503332 Eddy current testing-flows MAGNETIC ANALYSIS CORP 10 Feb 1975 [11 Feb 1974] 5504/75 Addition to 1458551 Heading G1N The invention relates to a variable-frequency, pulsed, eddy current testing system, using quadrature gated detectors as described in Specification 1405686, and provides minor variations in the circuits for deriving the driving (magnetizing) and gating pulses, which will be apparent from comparison of Figs. 2, and 3 (not shown) of the prior specificiation with Figs. 2 and (3) of this Specification.  In the present arrangement, the flip-flop Q 1 , Q 2  in block 30 co-operates with Q4 in block 30' to provide a "hold-off" circuit which controls on line 40 the input-shorting-transistor Q 12  in the "gate 1" block 31, (which is fed with pulses b). The "gate 2" block 31' is controlled by the output of Q2 (differentiated at 42, 43). Q 2  also controls the drive-pulse-output block 15. Where the applied P.R.F. may be varied over a wide range the time-constants of some of the circuits may need adjustment e.g. by varying the resistive component with shorting transistors. Where a less perfect driving pulse is acceptable a circuit similar to Fig. 4 (not shown) of the prior Specification 1405686 may be used. It is illustrated in (Fig. 4) of this Specification using the gating circuit disclosed in Specification 1458551. Specification 1458307 (relating to a pulsecurrent-regulator) is referred to.