baber/WOPTO huggingface dataset:
Patent GB-1447408-A (GB)
Title: Mixing and dispensing of multi-constituent compositions
IPC: B01F27/91
Filed: 1973-10-12
Abstract: 1447408 Mixing apparatus BRITISH UNITED SHOE MACHINERY CO Ltd 12 Oct 1973 [13 Oct 1972] 47873/73 Heading B1C [Also in Division G3] Apparatus for use e.g. in mixing and dispensing the constituents of a polyurethane composition, comprises a mixing chamber 10 of variable volume and a mixing device 30, first and second supply means 46, 48 for supplying first and second constituents of the composition to the chamber in relative proportions according to a predetermined ratio, control means 20, 70 for controlling the supply means 46, 48 and dispensing means, which as shown includes a piston 14 displaceably mounted in the mixing chamber 10 and outlet valve 28, the dispensing means being arranged to dispense mixed composition under the control of the control means concurrently with the supply to the chamber of the first and second constituents. In a cycle of operations (commencing from the point when dispensing of the mixed composition is complete) the supply means 46 supplies a small diluting quantity of first constituent (polyhydroxyl material) to be mixing chamber and piston 14 is moved upwardly to accommodate this material and then comes to rest. When a fresh charge is to be prepared a proportionate quantity of second constituent (isocyanate material) is first supplied to the mixing chamber by supply means 48 under the control of control means 20, 70 to bring the mixture in the chamber to the desired ratio, piston 14 moving further upward; thereafter both constituents are supplied simultaneously at a feed ratio which is measured and retroactively adjusted by the control means while piston 14 moves to a position providing an optimum mixing volume in the chamber at which position it comes to rest; outlet valve is opened as soon as the control means signals that the mixture is on ratio and supply, mixing and dispensing of mixed materials proceed simultaneously. In the final portion of the cycle supply of materials is discontinued while piston 14 is lowered to discharge the bulk of the mixed composition in the chamber. In the control system transducers 66, 68 provide signals relating to the feeds of the two materials, to a summing device 74 in which the feed ratio is compared with a feed ratio signal from programmer 76 and a ratio error signal is fed to an indicator 78, a zero error detector 80 and a ratio drive control 82. When a zero error signal is provided a signal from zero error detector 80 to master control 20 opens the outlet or dispensing valve 28. Ratio drive control 82 receives not only the ratio error signal but a ratio rate signal from means 84 and provides a modified signal to the master control 20 to control the drives to supply means 46, 48. Volume control 72 receives signals from transducers 66, 68 and through master control 20 controls the closure of inlet valves 23, 25 as well as cessation of feed by supply means 46, 48 so as to provide the required "shot" size.
Patent GB-1429201-A (GB)
Title: Manufacture of welded floos gratings
IPC: B21D47/00
Filed: 1973-10-15
Abstract: 1429201 Making gratings; welding by pressure ESAB Ltd 15 Oct 1973 [16 Oct 1972 19 Sept 1973] 48018/73 Headings B3A B3E and B3R In making a floor grating formed of longitudinal strips 1 on edge with cross-bars 2 welded to the strips, the strips are advanced as a flat array of parallel strips with the sides of the strips in a plane and during advancing the strips are gradually twisted into an on edge position, the on edge strips being fed to a resistance welding station where the cross-bars are welded to the on edge strips. In an embodiment a steel sheet is unwound from a coil 16, Fig. 3, carried by a carriage 14 on a track 18, another carriage 15 carrying another coil 17 being provided to replace the coil 16 when the latter is exhausted, the ends of the coils possibly being welded together. An advancing device 6 pulls the sheet through guiding and straightening rolls 19, 20, 21 and passes it through rotary shears 23 which slit the sheet into narrow strips, the strips passing into a pit 8 where they form a hanging loop. The strips are pulled by a step-by-step advancing mechanism from the pit over a table 9 where distance members engage between the strips and during passage along the table each strip is twisted through 90 degrees into an on edge position by pairs of vertical guide rolls 33. The on edge strips enter the welding station 10 where cross-bars are fed one at a time from a store 35 through a shoot 36, two cross-bars at a time being welded to the strips by an electrode and the assembly being advanced by a pair of pawls operated by a pneumatic cylinder 37 and engaging a cross-bar welded to the strips. At a cutting station 11 shearing means 38 cut the grating into lengths which are moved to the rear of a roller table 12 and removed by a crane 13. Monitoring means 27, 28 signal when the loop deviates from a predetermined length may adjust the rate of advance of the means 6. A platform 41 to bridge the pit during start of the process is provided. To obviate the need for manual twisting of the strips prior to entering the rolls 33, the rolls are replaced by guide fingers 52, 53 which are positioned as in Fig. 5a until the strips have entered between them, as shown, and then they are moved in directions normal to the plane of the strips to bend the strips into the on edge position as shown in Fig. 5b. In a modification guide fingers 57,58, Fig. 6, are combined with an upper guide bar 55 and a lower guide bar 56 movable together and apart by pressure cylinders 59, 60. The strips are pulled through square guide tubes 62 towards the bars 55, 56 and ribs 64, 65 guide the strip leading ends. A ramp 63 on each rib 64 deflects the leading ends upwardly instead of using a sheet which has to be slit into the strips, a number of strips may be fed from separate coils and cross-bars may be provided on both the upper and lower surfaces. An angle or channel iron frame may be provided.
Patent GB-1140805-A (GB)
Title: Adamantane derivatives
Inventor: PALA GIANFRANCO
Filed: 1966-10-26
Abstract: 1,140,805. Adamantane derivatives. INSTITUTO DE ANGELI S.p.A. 3 Oct., 1967 [26 Oct., 1966], No. 48122/66. Heading C2C. Novel compounds of the general formula in which R represents an alkyl or alkoxy group or a halogen atom are prepared by the interaction of 3,3<SP>1</SP>-diamino- 1, 1<SP>1</SP>-biadamantane and a compound of general formula p-R-C 6 R 4 -SO 2 NH.- COOX, wherein X represents a lower alkyl group, e.g. ethyl. 3,3<SP>1 </SP>- Diacetamido- 1,1<SP>1 </SP>- biadamantane, obtained by treating the 3,3<SP>1</SP>-dibromo compound with acetonitrile in the presence of concentrated sulphuric acid, is hydrolysed in the presence of sodium hydroxide to 3,3<SP>1</SP>-diamino- 1,1<SP>1</SP>-biadamantane. Pharmaceutical preparations having hypoglycemic activity contain as active ingredient the above novel compounds and administration may be orally, e.g. in the form of dosage units such as capsules and tablets.
Patent GB-1414993-A (GB)
Title: Lubricating oil hydrotreating process
IPC: C10G65/04
Filed: 1972-10-20
Abstract: 1414993 Hydrotreating lubricating oils GULF RESEARCH & DEVELOPMENT CO 20 Oct 1972 [20 Oct 1971] 48441/72 Heading C5E Lubricating oils are produced by subjecting a wide boiling range crude lubricating oil to hydrotreating in at least one primary reaction zone, removing a portion of the hydrotreated oil, subjecting the balance of the hydrotreated oil to further hydrotreating in at least one secondary reaction zone, recovering a heavier lubricating oil product from the removed portion and recovering a lighter lubricating oil product from the secondary reaction zone. The hydrotreating can be carried out at 343-482‹ C. and 140-700 kg./cm.<SP>2</SP> and the conditions in the secondary zone can be more severe than those in the primary zone, e.g. a lower space velocity; the feed can consist of distillate components or can also contain residual components. A feed 10 is hydrotreated at 12 and 18 and a portion 22 of the hydrotreated oil is distilled at 24 to provide a bright stock 28, a furnace oil and lighter fraction 26 and a 343-510‹ C. distillate 30 which is recycled to the first reaction zone. The remainder 38 of the hydrotreated oil 20 is passed to the secondary hydrotreating zone 34. The catalyst used in the reactors 12, 18 and 34 is a fixed bed of nickel-tungsten-fluorine on silica alumina.
Patent GB-991822-A (GB)
Title: Sausage making machine
IPC: A22C11/00
Filed: 1962-12-28
Abstract: 991,822. Skinless sausages. OSCAR MAYER-KARTRIDG PAK S.A. Dec. 28, 1962, No. 48820/62. Heading A2B. A machine for producing skinless sausages comprises a conveyer 14 having pockets 22 extending transversely thereon to receive the sausage meat roughly formed into sausage shapes with the long axes parallel, means for advancing the conveyer to place these shapes at a moulding station 15 which has a plurality of openended cavities 60 with their long axes in parallel, spaced relation and is mounted so that the sausage shapes on the conveyer 14 are aligned with the cavities 60, cooperable sausage meat compressing and end-shaping members 65 and 113 initially in axial alignment with the moulding cavities, and means 108 to have these compressing and end-shaping members to push the sausage shapes from the conveyer 14 into the cavities 60. A dip tank 136 may be placed beyond the moulding station, the shaped sausage forms being carried on a rack into and out of the dip liquid.
Patent GB-1131239-A (GB)
Title: A process for the production of copolymers of trioxane
Inventor: EMDEN WOLFGANG VON DER
IPC: C08G2/00
Filed: 1965-11-17
Abstract: 1,131,239. Trioxane - cyclic sulphonamide copolymers. FARBENFABRIKEN BAYER A.G. 17 Nov., 1965 [28 Nov., 1964], No. 48883/65. Heading C3P. Copolymers of trioxane and a cyclic sulphonamide of formula in which R is hydrogen or an alkyl radical of one to six carbon atoms, R<SP>1</SP> is a monovalent or divalent aliphatic or aromatic radical and n is 1 or 2, are prepared by copolymers trioxane at 50‹ to 120‹ C. in the presence of a cationically active catalyst with 0À5 to 50 mol. per cent of such a cyclic sulphonamide. The catalyst may be a Lewis acid, an oxonium salt, a carbonon- ium salt or a strong acid. The copolymerization may take place by bulk suspension or solution techniques. Terpolymers may be produced by copolymerizing also styrene, acrylonitrile, ethyl vinyl ether, methyl vinyl sulphone, epoxy compounds, cyclic acetals and thioacetals and organonitrogen compounds. The copolymers may be degraded to stabilize. Typical of the sulphonamides used is N-p-tolyltetrahydrooxathiazine dioxide.
Patent GB-1149924-A (GB)
Title: Improvements in or relating to the production of urea phosphate
Inventor: KEENS DOUGLAS
IPC: C07C273/02
Filed: 1966-11-02
Abstract: 1,149,924. Urea phosphate. POWER-GAS CORP. Ltd. 24 Oct., 1967 [2 Nov., 1966], No. 49115/66. Heading C2C. A process for the continuous production of urea phosphate comprises the steps of forming an aqueous feed solution of phosphoric acid and urea, heating said solution and evaporating water therefrom, with or without subsequent cooling, to yield a supersaturated solution of urea phosphate, forming a suspension of forming and growing crystals of urea phosphate in a mother liquor in which the weight ratio H 3 PO 4  to CO(NH 2 ) 2  on a water-free basis is held between pre-determined limits depending on the mother liquor temperature, contacting said supersaturated solution with said suspension, withdrawing grown crystals of urea phosphate from the contacted solution and suspension, withdrawing mother liquor from the contacted solution and suspension, recycling said mother liquor and adding phosphoric acid, urea and water thereto to form the aqueous feed solution so that in the mother liquor after crystallization the weight ratio H 3 PO 4  to CO(NH 2 ) 2  on a water-free basis is maintained within the said limits. The concentrated feed solution may be cooled by indirect heat exchange, subsequent to the evaporation of water to yield the supersaturated solution of urea phosphate, or if the concentrated feed solution is not to be cooled the evaporation of water may be carried out under vacuum by flashing off steam from the heated solution. The urea phosphate produced may be worked up using conventional procedures, suitable forms of apparatus being described for carrying out the continuous process.
Patent GB-1155276-A (GB)
Title: Wire Construction
IPC: D21F1/10
Filed: 1966-11-02
Abstract: 1,155,276. Wire. TEXAS INSTRUMENTS lnc. 2 Nov., 1966 [3 Jan., 1966], No. 49152/66. Heading E1K. Composite wire has an aluminium core within a copper sheath. The copper has a cross sectional area of between 10% and 25% of the section of the wire and is metallurgically bonded to the aluminium. The wire may be used for the production of screens and like meshes.
Patent GB-1500239-A (GB)
Title: Burner for an atomic absorption spectrometer
IPC: G01N21/72
Filed: 1976-11-25
Abstract: 1500239 Coated mixing chamber for burner for atomic absorption BODENSEEWERK PERKIN-ELMER & CO GmbH 25 Nov 1976 [29 Nov 1975] 49250/76 Heading B2E  A burner for an atomic absorption spectrometer has a mixing chamber whose walls have a roughened coating, e.g. an ethylene monochlorotrifluoroethylene copolymer or other polyfluoroethylene plastics material. The coating may be roughened by sandblasting, e.g. with silica, sand or boron carbide. Tubular mixing chamber 10 has burner outlet 12 and is closed by cap 14 fitted with drain bore 16. Fuel air mixture enters chamber 10 through inlet 19. Sample mist 22 is injected into chamber 10 by atomiser 20 and is broken up on roughened walls 24.
Patent GB-1444745-A (GB)
Title: Electrical connectors
IPC: H01R13/627
Filed: 1973-10-23
Abstract: 1444745 Two-part electrical connector AKZONA Inc 23 Oct 1973 [6 Nov 1972] 49390/73 Heading H2E An electrical connector comprises a plug shell 14 bearing a rotatable coupling nut 24 screwed to receptacle shell 12 with annular projection 50 extending radially outward and interceptable by blockable ball 48 to prevent relative motion of the shells 12, 14, while spring 40 is deformed resiliently due to nut 24 moving longitudinally relative to shell 14 until ball 48 moves into grooves 60 or 61 in control ring 58 inside nut 24 allowing it to pass projection when nut 24 is in a predetermined position with respect to the shell 14 releasing spring 40 to urge relative motion of the shells. Projection 50 has an annular lip making an obtuse angle with shoulders 52, 54 and adjacent to wide groove 56. Aperture 46 in ball carrier 16 is big enough to receive ball 48, but too small for it to pass through. When threaded rings 32 and 42 abut washer 36, spring 40 is uncompressed against washer 38 and longitudinal movement of the nut with respect to the shell 12 causes its compression when ball 48 is stopped by projection 50. Control ring 58 can move longitudinally and is disposed between snap ring 62 and shoulder 64. Carrier 16 is secured by its flange 18 between the outer part of shell 14 and flange 20. A plurality of balls may be used. Ball 48 may be replaced by enlargement(s) on flexible longitudinal arm(s) of a cylindrical part of member 16. Each shell 12, 14 supports internally an insert bearing electrical contacts and the shells may have keys and keyways to ensure correct alignment.
Patent GB-1489967-A (GB)
Title: Method of making metallic composite articles
IPC: F42B12/32
Filed: 1975-12-02
Abstract: 1489967 Fragmentation projectiles SINTERMETALLWERK KREBSOGE GmbH 2 Dec 1975 [19 Dec 1974] 49509/75 Heading F3A [Also in Divisions B5 and C7]  An article useful as a military projectile which breaks up on impact is formed in which discrete bodies are embedded in a metal matrix by holding the bodies in position on a metallic substrate, covering the bodies with a metallic sheath, and isostatically compressing together the substrate, bodies and sheath, whereby the bodies are embedded between, but remain discrete from, the substrate and the sheath. Hard metal balls 1 are positioned around a cylindrical metal substrate 3 and held in position by a sleeve 2. The space between the casing 5 and the sleeve is filled with a metal powder and when the sleeve is removed some of the powder falls into the interstices 8 between the balls. The casing is conventionally compressed isostatically to give a moulded body which may be sintered. The substrate may be a metallic powder. In another example where the substrate and sheath were two metal cylinders a kind of ball cage was first formed by the process of the invention and then the interstices were filled with metal powder isostatically compressed and then sintered.
Patent GB-1335119-A (GB)
Title: Document copiers
IPC: G03B27/52
Filed: 1971-10-26
Abstract: 1335119 Photographic apparatus; optical scanning systems INTERNATIONAL BUSINESS MACHINES CORP 26 Oct 1971 [20 Nov 1970] 49617/71 Headings G2A and G2J A document copier, as described an electrophotographic copier (101) Fig.1 (not shown), includes an arcuately curved original support surface 90; reflector means comprising a pair of angularly displaced plane mirrors 82, 83 mounted for rotation about the axis of curvature 85 of the surface 90; a light source 87 mounted so that light therefrom illuminates a strip of the surface 90 via the mirror 82 reflector means, the position of the strip depending on the rotational position of the mirrors; and a lens 89 positioned to receive light from the illuminated strip via the mirror 83 and to project the light on to an image receiving surface. Thus in use, a document is scanned by rotating the mirrors in synchronism. The light source 87 has an associated part ellipsoidal reflector 88. An apertured plate (61) Fig.6 (not shown), having an aperture of non uniform width to compensate for light intensity variations in the projected image, is provided between the lens and the image receiving surface.
Patent GB-1487411-A (GB)
Title: Materials and processes for flotation of mineral substances
IPC: B03D1/01
Filed: 1974-11-19
Abstract: 1487411 Froth flotation ALLIED COLLOIDS Ltd 14 Nov 1975 [19 Nov 1974] 49981/74 Heading B2H Pyrites, pyrrhotite, and/or sphalerite are depressed during froth flotation by an amine in which at least 20% of the amine groups are tertiary amine groups, with quaternary amine groups absent or present to a number less than one third that of the tertiary amine groups. The depressant may be monomeric e.g. a vinyl pyridine, triethanolamine, ethylene diamine tetra-acetic acid, an alkylated diethylene triamine, or a dialkylaminoalkyl acrylate or methacrylate. The amine may be a polymer e.g. a dialkyl aminoalkyl cellulose, a polyvinyl pyridine, an alkylated polyethyleneimine, a condensation product of a dibasic carboxylic acid with a polyalkylene polyamine (for example adipic acid with diethylene triamine treated with an alkylating agent such as dimethyl sulphate or a cross-linking agent such as epichlorhydrin) or a polymer derived from a dialkyl aminoalkyl acrylate or methacrylate or acrylamide. The alkyl groups contain 1-8 carbon atoms, preferably 1-4. Dialkyl thionocarbamates may be used as collectors at a pH of 8-12, using methyl isobutyl carbinol, pine oil, or polypropylene oxides as frothing agents. The process may be used during flotation of sulphide minerals from ore, and during separation of metal values from the "bulk sulphides" so produced. Other depressants may be used at the same time, e.g. soluble silicates, lignosulphonates, and cyanide salts. If desired, the pyrites or pyrrhotite together with sphalerite may be depressed, and the sphalerite subsequently floated in the presence of an activator therefor, e.g. copper sulphate or lead nitrate. Examples are given of beneficiation of copper, zinc, lead, and nickel bearing ores in two or three stages.
Patent GB-1107038-A (GB)
Title: Improvements in the processing of sisal for the production of fibres and pulp
Inventor: MARPILLERO PAOLO
IPC: D01C1/02
Filed: 1967-08-29
Abstract: Pulp is produced from any or all of the components of sisal plants, including leaves, stems and stalks in their natural state and/or by-products obtained by treating sisal plants by subjecting the components to chemical and mechanical treatment with a weak solution of NaOH at a temperature below 100 DEG C, to extract solubles and soften but not degrade the insoluble material, fiberizing the insolubles and separating them by screening into fractions, each of which is subjected to a second heat treatment and then further fiberized and separated, some of the final fractions being bleached. As described, the first separation is into two fractions A and B, of which A has the longer and cleaner fibres. Each is then subjected to a second treatment with NaOH, using for fraction B a stronger solution preferably containing some sulphur. Each is then again screened to give fractions A1, A2, B1, B2, and B3.  A1 and B1 have the longer particles, and are mixed, fiberized and bleached, A2 is also fiberized and bleached to yield a pulp of lower quality, B2 is used as unbleached pulp and B3 is passed to waste.  Bleaching may be by an oxidizing process including a first treatment with hypochlorite, a treatment with ClO2, an alkali wash and a final treatment with hypochlorite.  ClO2 is preferably generated in situ by the decomposition of chlorates such as Ca(ClO3)2 by vanadiummolybdenum catalysts.
Patent GB-1480310-A (GB)
Title: Agglomeration of a mineral
IPC: F28C3/16
Filed: 1975-12-10
Abstract: 1480310 Controlling agglomeration DELATTRE-LEVIVIER 10 Dec 1975 [15 Jan 1975] 50672/75 Heading C1A A method of regulating the agglomeration of mineral on an endless chain comprises passing said mineral through a firing zone provided with suction windboxes under the grate connected to a common suction duct, then a cooling zone in which the fired product is cooled by passing air through the agglomerated products using suction windboxes connected to a common suction duct, wherein the temperature of the gases in the common suction duct from the windboxes in the coding zone is compared with a preset temprature, and a signal resulting from the comparison is used to act on the flow of suction gases from the windboxes in the firing zone. The signal may also be used to act on the composition of the material in the chain.
Patent GB-1481003-A (GB)
Title: Electrophotographic apparatus
IPC: G03G15/00
Filed: 1975-12-11
Abstract: 1481003 Electro-photography RICOH CO Ltd 11 Dec 1975 [28 Dec 1974] 50826/75 Headings G2H and G2X Excess liquid developer adhering to photoconductive drum 1 after development of an electrostatic latent image sticks to spaced cleaning roller 23, rather than to the drum surface, and so as not carried with the developed image when that is transferred to copy material 7. The roller 23 has enlarged ends 24, which run on stainless steel or aluminium oxide tracks 22, outside the photoconductive centre section 21a of the drum 1.