baber/WOPTO huggingface dataset:
Patent GB-861443-A (GB)
Title: Process for the manufacture of azo pigments
IPC: C09B39/00
Filed: 1957-03-07
Abstract: Azo pigments are prepared from components free from sulphonic acid groups, by subjecting a diazo compound in a stablized dehydrated form and an azo component to intensive mechanical mixing under substantially anhydrous conditions in an amount of organic solvent sufficient to produce a homogeneous kneadable mass, the coupling reaction being carried out in a range of acidity or alkalinity at which coupling can occur.  Specified solvents include pyridine, ethylene or polyethylene glycols and their ethers, diacetone alcohol, dimethyl formamide and mono- and di-chlorobenzenes.  If necessary an acid-binding agent such as sodium acetate or potassium hydroxide is added.  The physical form of the pigments so obtained may be improved by heating with high-boiling solvents such as aniline, xylene and nitro- or chlorobenzenes.  In an example, 3 : 31-dichloro-4 : 41-di-(211-hydroxy- 311 - naphthoylamino) - 1 : 11-diphenyl is kneaded with the zinc chloride in the presence of pyridine, the disazo pigment double salt of diazotized m-chloro-aniline product is washed with water and aqueous sodium hydroxide and hydrochloric acid solutions to give a red pigment which is heated with o-dichlorobenzene to give an improved crystalline form.  In a table the preparation of other pigments is specified, the components being (1) stabilized diazo compounds derived from o-chloroaniline, 2-methyl-3-, -4- or -5-chloroaniline, 1-aminoanthraquinone, 2-methyl- or methoxy-5-nitroaniline, 5-chloroanthranilic acid methyl ester, 2- methoxy-4-chloro- 5 methyl aniline and 3-methoxy-4-amino-1 : 11-diphenylamine; (2) azo components:-terephthaloyldiacetic acid di-(o-chlorophenylamide) or -(2-methoxy-4-chloro-5-methyl-phenylamide) or -(2 : 4-dimethoxy-5-chlorophenylamide), 3 : 31-dichloro-4 : 41-di-(211-naphthoylamino)-1 : 11-diphenyl, 4 : 41-di-(211-hydroxy-311-naphthoylamino)- or -(311-hydroxydiphenylene oxide-211-carboylamino)- or -(211-hydroxyfluorene-311-carboylamino-1 : 11-diphenyl, 3 : 31-dimethoxy- or -dichloro- or -dimethyl-4 : 41-di (211-hydroxy-311-naphthoylamino)-1 : 11-diphenyl, 2- 21-hydroxy-31-naphthoylamino) -anthraquinone or -chrysene, 3-(21-hydroxy-31-naphthoylamino)-pyrene, 1, 4-di-(N-methyl-21-hydroxycarbazole- 31-carboylamino) -benzene, 1 : 4-di-(21-hydroxycarbazole-31-carboylamino) -benzene, 1-(31-hydroxydiphenylene oxide-21-carboyl-amino)-2 : 5-di-methoxybenzene and 3 : 31-dimethyl-4 : 41 -di-(211-hydroxy - 411 - methyl - 111 - benzoylamino)-1 : 11-diphenyl.
Patent GB-1028413-A (GB)
Title: Method of protecting the internal wall of a rotatable container, and container arranged to carry the method into effect
IPC: B03B9/06
Filed: 1963-02-26
Abstract: 1,028,413. Mixing appliances; auto genous grinding. DANO INGENIRFORRETNING OG MASKINFABRIK INGENI KAJ PETERSEN'S FOND. Feb. 26,1963 [Feb. 27, 1962], No. 7746/63. Headings B1C and B2A. The internal wall of a container rotatably mounted about a substantially horizontal axis is protected by the formation of a wear-resistant layer of the material being treated. In an apparatus for aerating fermenting and self-communication of organic refuse, a cylindrical drum 1 has longitudinal ribs 10 which are suitably spaced to retain between them a layer 11 of the material; in a continuous discharge apparatus the circumferential spacing of the ribs may increase towards the discharge end. The ribs 10 may be bolted directly to the container or fabricated from or attached to plates 13 which may be held against the container wall by retaining rings and screws 14, 15. Alternatively, the ribs may be formed as grids,Fig. 17,whichmavbe assembled by bayonet joints (Fig. 6, not shown) or welded or bolted together and may be retained in the container by folding wedges 20, elliptical wedges 21, retainer bars 32 and bolts 34, retainer bars forced apart by wedge-headed screws, (Figs. 11 and 12, not shown) or welding. There may also be ribs on the ends of the container.
Patent GB-634195-A (GB)
Title: Improvements in or relating to mechanical stokers for boiler furnaces
IPC: F23K3/14
Filed: 1947-03-21
Abstract: 634,195. Mechanical stokers. STEIN ET ROUBAIX SOC. ANON. March 21, 1947, No, 7865. Convention date, July 16, 1943. [Class 78 (i)] A device for feeding fuel to a furnace which is elevated at a level above the normal furnace flooring, comprises a fuel-feeding hopper having a discharge screw and a succession of conduits each with an associated rotatable conveyer screw therein, the first of the conduits being horizontal or substantially horizontal and adapted to receive fuel from the hopper and the remaining conduits being inclined to the horizontal and rising successively at an increasing angle from the horizontal conduit up to an elevated delivery conduit from which fuel is delivered to a furnace, the conduits being inter-connected by ball joints and the conveying screws being interconnected by universal joints. As shown, Fig. 1, a feeding hopper 10 is situated below a fuel bunker 11 and is discharged by a conveyer screw 12 controlled by a reducing gear 13. Telescopic conduits 15, 16 have an internal screw 17 coupled to the screw 12 by a universal joint 18. Universal joints 21, 24 connect screws 17, 20 and 23, the screws 20. 23 being in conduits 19, 22 respectively. The conduits are connected by joints 25, 26 and 27 so that the fuel is fed up through the conduits. At the upper part of the delivery conduit 22 the coal empties on to a ribbed plate 28 and is distributed on the grate by a fluid under pressure passing out through suitable openings in a nozzle chamber 29. A moistening device 33 is provided for the coal prior to its entry into the furnace to cause an agglomeration of dust about the larger pieces. A plurality of these mechanical stokers may be used to feed a furnace through a plurality of openings or a plurality of furnaces situated at desired levels. As shown in Fig. 5, an operating motor 37 for stokers 38, 39 and 40 actuates the reducing gear 42 for the stoker 38 through a clutch 41. The reducing gears 42, 43 and 44 for the stokers 38, 39 and 40 are interconnected by transmission shafts 46 and universal joints 47 in such a way that the reducing gears are actuated simultaneously by the motor 37. A coupling and releasing device is provided on each of the gears 42, 43 and 44 so that any stoker may be stopped whilst leaving the others in operation.
Patent GB-116323-A (GB)
Title: Improvements in Rubber Coagulum or similar Material and Processes for the Preparation of the same for Vulcanization.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: C08C3/00
Filed: 1917-06-01
Abstract: 116,323. Jackson, W. J. Mellersh-, (General Rubber Co.). June 1, 1917. India-rubber, preparation of.-Coagulated rubber, gutta, chicle, and like coagulated latex is treated for instance with mono- or poly-hydroxy mono- or poly-cylic benzenoids or their ethers, esters, salts, polymers, or other compounds of them, such as gallic acid, tannins, cresols, naphthols, diamidophenol, paramidophenol, #-naphthol, &c. in order to form in the coagulum an insoluble layer which prevents the passage therethrough of colloidal nitrogenous matter &c, and so prevents the formation of slime on the coagulum. For example, freshly coagulated rubber is immersed in a 5 per cent solution of #-naphthol in alcohol for 30-40 seconds and is then allowed to dry, the member which is formed being permeable to water. The reagent may also be dusted, sprayed, or painted on, or applied as a paste. Sulphur or other vulcanizing-agent may be incorporated prior or subsequent to the treatment.
Patent GB-569003-A (GB)
Title: Improvements in or relating to the preparation of refined products from crude benzole
IPC: C07C7/00
Filed: 1940-05-02
Abstract: 569,003. Refining crude benzol. APPLEBY-FRODINGHAM STEEL CO., Ltd., and STEPHENSON, H. P. May 2, 1940, No. 7916. [Class 91] Refined products are prepared from crude benzol by a process of first fractionating the crude into heads having close boiling ranges and then washing the fractions separately, characterised in that the fractions are washed with quantities of acid varying according to the nature of the fractions, using amounts of acid, however, which are insufficient to require subsequent neutralization. In an example, a batch was fractionated into heads of benzene, toluene and naphtha and the benzene washed with 4 per cent by volume of distilled oil of vitriol, and the toluene fraction washed with 2¢ per cent of distilled oil of vitriol.
Patent GB-140216-A (GB)
Title: Improvements in front pressure rollers of frames for drawing and spinning textile yarns
IPC: D01H5/74
Filed: 1919-03-31
Abstract: 140,216. Aspin, A. March 31, 1919. Rollers.-Four top pressing-rollers are mounted on a single arbor in drawing and spinning frames. In existing machines, the adjacent ends of two ordinary arbors may be connected by a sleeve coupling, or, as shown in Fig. 3, one pair of rollers may be integral and provided with bores D to receive the adjacent ends of two arbors. The rollers are preferably of less diameter than usual. In the Provisional Specification, it is stated that more than four rollers may be mounted on a single arbor.
Patent GB-326992-A (GB)
Title: Improvements in or relating to high-pressure centrifugal pumps
IPC: F04D1/06
Filed: 1929-03-12
Abstract: 326,992. Vogel, E. March 12, 1929. Balancing moving parts; leakage-preventing devices.-The thrust on the end of the shaft of an overhung multi-stage pump is balanced by the differences of pressure exerted on annular areas of depths 17, 18 on the rotor faces. The shaft is supported on spaced ball races 3, 4 and has a thrust ball race 20. A packing gland is divided into two parts 11, 11<1> by a perforated ring 25 and a separate liquid, preferably clean cold water, is introduced between the parts by way of port 23. If desired this liquid may be circulated by means of ports 23, 24 and also serve to jacket the bearings 4, 20.
Patent GB-509439-A (GB)
Title: Improvements relating to shelters or buildings for use in the event of warfare
IPC: E04H9/10
Filed: 1938-03-16
Abstract: 509,439. Air-raid shelters. LONDON WORKS (BARLOWS), Ltd., and MAYER, A. N. March 16, 1938, No. 8087. [Class 20 (i)] A framework for a shelter for use in the event of warfare comprises a plurality of metallic inverted U-frames a, longitudinal tie-rods a' bolting the frames a together, longitudinal frame rods b having their extremities riveted to the respective frames a, angle-section rails a<3> connecting the lower parts of the frames a, and cross-rods a<2> uniting the said rails a<3>. The frames a may be of angle section, and the ends of the rods b may be reduced for passage through holes in the frame a. The rods a, b may be covered internally or externally with a metal fabric, and the structure is enclosed in concrete which is cast in situ and preferably so as to lie flush on the inside of the structure with the inner flanges of the frames a. The structure is provided with door frames c.
Patent GB-881561-A (GB)
Title: Improvements in or relating to indicating and/or control systems
Inventor: JENKINS WALTER NORMAN
IPC: B21B37/58
Filed: 1957-03-12
Abstract: 881,561. Electric selective signalling systems. BRITISH IRON & STEEL RESEARCH ASSOCIATION. June 11, 1958 [March 12, 1957], No. 8096/57. Class 40 (1). Apparatus for indicating the difference between two values comprises a plurality of switches having ganged moving contact members, a first set of lines connected individually to the moving contact members and a second set of lines connecting, in a predetermined manner, the stationary contact members, one of the values being represented by the physical setting of the moving contact members, the other value being represented by the selective electrical energization of the lines of one of the sets of lines and the difference between the values being indicated by the resultant energization of the other set of lines. The comparator described comprises, Provisional Figure, a ten-bank ten-wiper rotary switch connected as shown. One of the wipers 14 is marked by a switch 20 to represent one value, and the wipers are moved physically (horizontally as shown) to represent the other value. The difference is then indicated by that one of the diagonal connections which is marked. The comparator could be used in a closed-loop type follow-up system in which case the central diagonal lead (zero difference) would control a brake and the upper and lower diagonal leads would control forward and reverse motor relays R1 and R2. In a further embodiment (Complete Figure, not shown) two such arrangements are used in a two-denominational follow-up system.
Patent GB-558015-A (GB)
Title: A method and means for treating vermiculite and similar mineral substances
IPC: C04B20/06
Filed: 1942-06-13
Abstract: 558,015. Expanded vermiculite. KENYON & SONS, Ltd., W., and SLOR, B. B. June 13, 1942, No. 8112. [Class 70] [Also in Groups VIII and XII]  Vermiculite &c. is cut to form pieces of required size, without crushing, and heated to cause incomplete exfoliation, the expanded product being a fireproof insulator of heat and sound. The cutting machine, Fig. 2, may comprise a guillotine 5, 6 fed from a hopper 1 and conveyer 3, and to form the material into strips which are then cut into rectangular pieces by rotating blades &c. 13. The pieces then pass through a slowly-rotating, insulated, cylindricalkiln 18 heated, e.g. to 1,200 to 14,00‹F. by gas burners. An internal helical strip 23 propels the vermiculite towards a separator 24 ; lighter pieces of vermiculite which rise to the surface being propelled by hot air &c. more quickly to the separator 24.
Patent GB-1429594-A (GB)
Title: Production of azines
IPC: C07C241/00
Filed: 1974-02-22
Abstract: 1429594 Azines BAYER AG 22 Feb 1974 [24 Feb 1973 2 Oct 1973] 8219/74 Heading C2C Azines of formula in which R 1  and R 2 , which may be the same or different, represent hydrogen, an optionally substituted linear or branched alkyl radical having up to 15 carbon atoms, an optionally substituted cycloaliphatic radical having up to 12 carbon atoms, an optionally substituted aromatic radical, an optionally substituted aralkyl radical having up to 12 carbon atoms or an optionally substituted heterocyclic radical, or R 1  and R 2  together form an optionally substituted ring with the carbon atoms to which they are attached, are made by reacting a carbonyl compound of the formula in which R 1  and R 2  are as defined above, with ammonia and at least one of peroxomonosulphuric acid, peroxodisulphuric acid and the ammonium, alkali or alkaline earth metal salts thereof, optionally in the presence of a silver or rhodium catalyst.
Patent GB-580263-A (GB)
Title: Improvements in or relating to tyre-inflating valves
IPC: F16K15/20
Filed: 1944-05-03
Abstract: 580,263. Tyre valves. BARRETT, A. G. May 3, 1944, No. 8338. [Class 135] In a tyre valve of the kind described in Specification 544,261, there is substituted for the ball or other closure member a plug b which co-operates with a seating e and is provided with a wire or rod connection c projecting from the end of the valve stem so that it may be retracted by hand on to its seating after a tyre inflating operation to seal positively the passage. A dust cap d with a central hole d' to accommodate the wire or rod c may also be provided.
Patent GB-1457187-A (GB)
Title: Mist coating of strip material
IPC: B05B15/04
Filed: 1974-02-25
Abstract: 1457187 Spray-producers, spray coating AMCHEN PRODUCTS INC 25 Feb 1974 [12 July 1973] 8436/74 Headings B2F and B2L Apparatus for coating moving metal strip comprises two spray heads each having twelve radially disposed nozzles 82 for producing an aerosol from a liquid and a gas supplied separately thereto and being directed at an acute angle to the general plane of the spray head whereby the reaction of the aerosol tangentially to the axis of rotation causes the spray head to rotate, the spray heads being mounted one above and one below the metal strip 24 inside a spray chamber 22 which is exhausted to prevent escape of spray to the atmosphere and the exhaust gas filtered by filter means 34 which comprise a liquid bath through which the atmosphere withdrawn is bubbled, the liquid being that supplied to the spray head, the exhaust liquid and gas being recycled to the spray head, the gas being further reycled to the spray head, the gas being further purified by a surface fitter. The nozzles 82 are attached to a central hub 132 which has hollow portions 168 and 170 divided by a wall 172 for receiving liquid and air respectively. The hub 132 is supported by and rotates about co-axial gas and liquid feed pipes 142, 154, and liquid fed into chamber 162 from holes in feed pipe 154 is flung outwards by centrifugal force toward the feed pipes 93 for the nozzles 82, a hollow conical cap 176 partly defining the chamber aiding this flow and allowing the use of bearing assemblies not requiring fluid-tight seals.
Patent GB-644008-A (GB)
Title: Improvements in or relating to the production of shaped articles of polytetrafluoroethylene and copolymers thereof
IPC: B29C43/46
Filed: 1947-03-28
Abstract: Finely-divided polytetrafluoroethylene or interpolymers thereof with other polymerizable compounds such as isobutylene or ethylene is pressed to form a shaped body which is then heated in an unconfined state in the absence of applied pressure to a temperature above 327 DEG  C. to sinter it, and the sintered body is then cooled to a temperature below 250 DEG  C. under pressure in a die having the shape of the desired finished article.  The shape of the finished article may be the same as that of the initially pressed body before sintering, or different therefrom.  Articles produced by the invention may be further shaped by cold-flowing or machining.  In an example polytetrafluoroethylene powder is preformed at 3000 pounds/sq. inch in a ring-shaped die, removed from the die, sintered in a furnace at 360 DEG  C. for 2 hours, removed from the furnace, immediately placed in a second (finishing die) and pressed at 300 pounds/sq. inch, the pressure being maintained until the article has cooled to below 250 DEG  C.  In a second example the same procedure is followed except that the final pressure is 500 pounds/sq. inch and the finishing die is different in shape from the preforming die. With the polytetrafluoroethylene may be mixed, in powder or fibrous form, copper, tin, iron, lead, brass, bronze, graphite, asbestos, silica, calcium chloride or fluoride, sodium chloride, ammonium chloride or nitrate, or titanium dioxide.  The Specification as open to inspection under Sect. 91 contains also the following matter: The powder is preformed at 2000 pounds per sq. inch in a die into a tube-shaped body, then sintered in the die under a pressure of 200 pounds per sq. inch at 360 DEG  C. for 2 hours, then cooled to 100 DEG  C. in 3 hours under a pressure of 200 pounds per sq. inch.  From the tube thus made continuous sheet material may be turned off in a lathe or gaskets may be cut; such a gasket may then be heated to 250 DEG  C., pressed in a serrated die and cooled in the die to 100 DEG C. under a pressure of 6000 pounds per sq. inch, the result being either a serrated gasket (Figs. 7 and 8, Cancelled, not shown) or a washer of complex shape which may serve as a spacer in the manufacture of co-axial cables (Figs. 9 and 10, Cancelled, not shown); (see Group XXXVI).  This subject-matter does not appear in the Specification as accepted.
Patent GB-1174383-A (GB)
Title: Independent Rear Suspension System for a Motor Vehicle.
IPC: B60G3/28
Filed: 1968-02-22
Abstract: 1,174,383. Independent rear suspension; mounting differential gearing. FORD MOTOR CO. Ltd. 22 Feb., 1968 [1 March, 1967], No. 8577/68. Headings B7D and B7H. In an independent rear suspension for a motor vehicle, a differential 14 is supported from the vehicle frame for limited pivotal movement about a transverse axis, road wheels 10, 12 positioned laterally of the differential and driven through axle shafts 20 are rotatably mounted in carriers 34, 35 positioned by resilient trailing links 38, 52, and axle shaft housings 26, 46 connected to the differential 14 and the carriers 34, 35 by pivot means 32, 36 having longitudinal axes transmit driving torque reaction from the differential to the carriers so that the links 38, 52 exert on the frame a force which opposes " squatting " of the rear end of the vehicle during acceleration. Cylindrical portions 68, 70 of the differential housing are mounted in brackets 66, 67 on the frame by means of annular rubber elements 74 which oppose rotation of the differential only to a limited extent. Each trailing link 38, 52 is formed by a leaf spring having its rear end clamped to the carrier 34, 35 and its front end connected to the frame by a bushing 42, 56 or by fitting the spring end into a rubber sandwich (Fig. 5, not shown) housed within a bracket on the frame. Transverse links 80, 82 are pivotally connected to the differential 14 and wheel carriers 34, 35. Coil springs 60, 62 or torsion bar springs support the frame on the housings 26, 46. Reference has been directed by the Comptroller to Specification 1,089,626.
Patent GB-163864-A (GB)
Title: Improvements in the manufacture of super-heater element heads
IPC: B21C37/28
Filed: 1920-03-24
Abstract: 163,864. Stewarts & Lloyds, Ltd., and Watson, T. D. March 24, 1920. Tubes.-Bends 8 for connecting the tubes 15 of superheaters are made from single pieces of tubing by closing one end and forming a division 11 across the other. The end is reduced by suitably shaped rings in an hydraulic staving-machine or under a hammer or otherwise. It may then be stopped by a plug 9, Fig. 2, and is finally closed by means of a smith's snap and peg. The open end is then flattened, pressed between dies to form the division 11, Fig. 5. which may be united or reinforced by oxy-acetylene welding, then trimmed and chamfered or recessed at 14, Fig. 7, for welding to the tubes 15.
Patent GB-666724-A (GB)
Title: Improvements connected with electric lighting fittings
IPC: F21V23/00
Filed: 1949-03-31
Abstract: 666,724. Lighting fittings. SAMUEL, H. P. March 31, 1950. [March 31, 1949] No. 8705/49. Class 75(iii). An electric lighting fitting adapted to be clamped on a bed head comprises a member 4 providing a socket 5 for the lamp, has switch means whereby a resistance can be inserted in series with the -lamp and has a clamping plate 9 adjustably extending from the lower part of the member 4 between which parts the clamping is effected. Two press button switches 16 are mounted on the front of the fitting, one being an onoff switch, the other serving to include in the circuit a series resistance in the form of a small electric bulb 15 mounted on a platform 12 at the bottom of the fitting and enclosed in a cylinder 14. The clamping plate 9 has screws 10 extending through the member 4 and knurled nuts 11 thereon serve to move the plate relative to the fitting. The faces of the clamping plate and fitting which engage the bed head are rubber covered. A conical reflector is held by the engagement of wire loops in the reflector with the light bulb.
Patent GB-177544-A (GB)
Title: Improvements in manifolds or junction boxes for pipe connections
IPC: B63B13/00
Filed: 1922-03-27
Abstract: 177,544. Maxwell, J. D. March 25, 1921, Junction-pieces. - A junction-box, or " manifold," particularly for use on board ships in exhaust steam, ballast water, and oil-fuel pipe connections, comprises a body portion containing passages communicating with the pipes, and a cover, which is removably secured to the body portion to complete a desired connection between the pipes. The body portion 5 has three passages 7, 8, 9 opening to the flat surface 10 which form a seating for the cover 6. The cover may be secured, as shown in Fig. 3, to connect the passages 7, 8 and close the passage 9, or it may be reversed, end for end, to connect the passages 7, 9 and close the passage 8. The cover is secured by bolts 15 pivoted at 16, and by wing- nuts 17.