baber/WOPTO huggingface dataset:
Patent GB-1080661-A (GB)
Title: Process for the manufacture of mono-alkali metal phosphates
IPC: C05B1/00
Filed: 1965-02-01
Abstract: Mono-alkali metal- or mono-ammonium-phosphates may be prepared by heating, to not above 180 DEG  C., H3PO4 with an alkali metal- or ammonium-chloride in a molar ratio of 2:1 respectively, in the presence of vapours of an inert organic solvent having a boiling point at the pressure of the reaction above that of the azeotrope of HCl and H2O at that pressure, and withdrawing a mixture of solvent vapour and HCl from the reaction mixture.  The solvent which may be kerosene, white spirit, n-octane, di-n-butyl-, di-sec-butyl-, or di-iso-amyl-ether, or tetrachloroethylene, may be added to the reaction mixture as a liquid, sufficient for the entire reaction or in small quantities throughout the reaction, and evaporated by external heat, or it may be heated separately and contacted as the vapour, in which case the process may be continuous.  After removal of the solvent, the crystalline reaction mixture, which in the case of Na or K comprises NaH2PO4.H3PO4 or KH2PO4.H3PO4, can be decomposed by extractive leaching with H2O-miscible solvents, e.g. aliphatic alcohols.  Alternatively, the solvent free product may be treated with NH3 in a molecular ratio of reaction mixture: NH3 of e.g. 1:1.5 to give a fertilizer.
Patent GB-124252-A (GB)
Title: Improvements in or relating to Instruments for Measuring and Recording the Tonnage Taken on Board and Discharged from Ships.
Inventor: BAHNSEN SOPHUS PETER
IPC: B63B39/12
Filed: 1918-03-11
Abstract: 124,252. Bahnsen, S. P. March 11, 1918. Displacement, determining and indicating.-The apparatus comprises a stand A, a shaft F mounted transversely in the stand, a frame G suspended from the shaft and carrying the float drum a, take-up drum h, and scale drum g, and a pencil adapted to be moved longitudinally of the scale drum by the movement of a, float c suspended from the scale drum. The guided float c, arranged in a tube 35 open at the bottom end to the sea, drives the float drum a connected by the cord d and compensating gear to the drum h, which in turn drives the scale drum g. The pencil o is carried by a block q having a guided cord p connected, as shown, to the balance weight s which keeps the cord d taut. A dial v for indicating the fore and aft displacement has a pointer w mounted on a weighted rocking spindle x having a pinion 3 driven by a pinion 12 connected to the weighted rocking spindle 5 by a. series of levers 6-11. The position of the t1'amwel'se spindle Ii' is adjusted by screws 39, Fig. 6.
Patent GB-932476-A (GB)
Title: Power shovel
IPC: E02F3/30
Filed: 1960-02-08
Abstract: 932,476. Shovelling-machines. RUSTON-BUCYRUS Ltd. Feb. 8, 1960 [March 17, 1959], No. 4318/60. Class 68 (1). A saddle block 29 mounted for pivotal movement about an axis transverse of the boom 13 of a shovel excavator is so constructed as to allow of the dipper stick 23 of the excavator to be able to rotate in the block about the longitudinal axis of the stick against energy-absorbing snubber means 35 or 35<SP>1</SP> associated with the block. The snubber means may be a mechanical brake 35 of the dry friction type or a pair of opposed single - acting hydraulic shock absorbers 35<SP>1</SP>. A brake or the shock absorbers may be mounted on a or each of a pair of upstanding lugs 28 on the saddle block. Either ring gearing 30 on the bearing sleeves supporting the dipper stick in the block engages ring gearing 36 on the moving parts of the brake or brakes 35, or a radiallyextending arm 42 extends from the dipper stick 23 to between for engagement with one or the other of the opposed plungers 43 of the shock absorbers 35<SP>1</SP>. A loosely-fitting key 33 and keyway 34 between the stick and the or each bearing sleeve or the spacing of the arm 42 between the plungers 43 allow of the dipper stick turning freely over a predetermined range of movement before the snubber means becomes operative.
Patent GB-1064232-A (GB)
Title: Improvements in or relating to the recovery of boric acid
Inventor: BURTON WILLIAM ROBERT
IPC: C01B35/10
Filed: 1964-01-31
Abstract: Boric acid is recovered from aqueous nuclear reactor coolant by passing the coolant through a basic ion-exchange resin on which the boric acid is taken up, washing the resin with NH4OH to remove the boric acid, and boiling the effluent to drive off NH3.  The resin is then washed with water and the NH3 is boiled off the effluent.  The NH3 is collected and used again. The resin may be of the quaternary ammonium type, e.g. "Amberlite" and "Deacidite" (Trade Marks), and is preferably maintained at 50-60 DEG  C. during NH4OH washing. 4N.NH4OH may be used.
Patent GB-175971-A (GB)
Title: Improvements in reaction turbines having dise wheels
IPC: F01D1/02
Filed: 1922-02-14
Abstract: 175,971. Akt.-Ges. Brown, Boveri, et Cie. Feb. 26, 1921, [Convention date]. Axial-flow type; balancing moving parts.- In a reaction turbine with moving blades b mounted on disc wheels a, guide-blades c at their exit side terminate at about the level of, or slightly below, the free flow passage of the moving blades so that a portion of the motive fluid is diverted into the interwheel space where its kinetic energy is converted into pressure energy and the pressure in that space is thereby increased to the exit pressure of the moving blades. The guide-blades preferably are of greater width than the running blades and are fitted with covering strips and on their entrance side extend a distance d below the exit edge of the preceding running blade so that the fluid passes without loss to the guide-blades. Deflecting projections f cutting off a thickness g of the jet are shown on the third wheel; highly loaded wheels are formed with a symmetrical projection h.
Patent GB-239116-A (GB)
Title: Improvements relating to piston rings
IPC: F16J9/14
Filed: 1925-02-18
Abstract: 239,116. Gray, W. W. Feb. 18, 1925. Piston packing. - In a split packing-ring having its ends recessed to receive a cover plate, the ends of the recesses are cut away, so that they are initially out of contact with the cover plate. For this purpose the curved wall 3 of each recess terminates in a portion 6 inclined towards the inner periphery of the ring, and the flat wall 5 terminates in a rounded end 7 recessed below the level of the surface 5.
Patent GB-114048-A (GB)
Title: Improvements in Electric Connections between Cells or Batteries and Bulbs of Electric Pocket Lamps, Electric Torches, and other Electric Lamps which Carry their Own Cells or Batteries.
IPC: F21L4/00
Filed: 1917-03-28
Abstract: 114,048. Efandem Co., and Williams, A. H. March 28, 1917. Battery lamps.-One of the terminals b of the battery engages a contact member D fixed to the sides of the casing. The member D, as shown in Fig. 3, consists of a rod d surrounded for a part of its length by a metal sleeve d<1> with which the switch E engages. The ends of the rod d may be provided with metal caps d<2> to enable the contact member to be soldered in position.
Patent GB-1030984-A (GB)
Title: Reversible torque separable drill pipe coupling
IPC: E21B17/046
Filed: 1965-02-02
Abstract: 1,030,984. Shaft couplings; pipe couplings. C. J. DAVIS. Feb. 2, 1965 [July 22, 1964], No. 4492/65. Headings F2G and F2U.  A reversible drill pipe coupling for connecting the ends of adjacent pipe sections of an earth drilling string comprises a hexagonal pin 15 welded to a drill pipe 18, and engaged within a complementary bore of a female box 10 welded to a drill pipe 12, the coupling parts being secured against axial separation by a U-shaped keeper 25 located in transverse holes 23, 24 in the box 10, the legs of the keeper 25 engaging an annular groove in the pin 15. The inner end of the box 10 has a collar 14, or is formed with a reduced diameter (not shown) to provide a shoulder against which the pin 15 is located, the end of the pin 15 having a reduced diameter 19 carrying an " 0 " ring 20 serving to form a pressure-tight seal. In Fig. 2 (not shown) the hexagonal portion of the pin and box are of reduced length, the keeper 25 being arranged towards the outer end of the box 10 to engage the groove in a cylindrical portion of the pin 15.
Patent GB-940565-A (GB)
Title: Dimensionally stable corrosion resistant nuclear fuel
IPC: G21C3/60
Filed: 1962-02-06
Abstract: <PICT:0940565/C3/1> An actinide-base alloy containing zirconium and niobium in the ratio 5:1.5 by weight, and used for nuclear fuel elements is rendered simultaneously corrosion resistant and dimensionally stable by deforming it by coldrolling and then heating for a short period (e.g. 15 minutes) to a temperature such as 800 DEG C. at which it is rapidly transformed to the gamma phase. The alloy is then heated for a long period (e.g. 24 hours) at a temperature such as to transform it into the alpha plus beta plus gamma phase, as indicated in the accompanying drawing, cooled in air, again heated for a short periodto a temperature at which it is rapidly transformed to the gamma phase, and quenched in water.
Patent GB-563974-A (GB)
Title: Improvements relating to the casting in situ of concrete and like walls
IPC: E04G9/02
Filed: 1943-03-22
Abstract: 563,974. Moulds for casting walls in situ. INGLIS, R. A. March 22, 1943, No. 4587. [Class 20 (ii)] Moulds for casting walls in situ are not positively secured but are made of hollow form and filled with water or other fluid ballast after positioning, to give them stability during the casting operation. The mould units a which are juxtaposed, but without making contact with each other laterally, so as to facilitate removal after casting, are built up of angle-iron framing c with plates of the required form for the casting required, or closing plates, on all six faces, to form closed box-like containers. Lifting bars g are fitted in the top section so that the mould units may be lifted into different positions for the completion of the casting, fluid ballast being run or pumped into the mould units through pipes o and cocks j before each casting operation and withdrawn similarly before the mould units are repositioned for the next casting operation. The mould units are superposed to form the complete shuttering for a wall before casting commences.
Patent GB-700516-A (GB)
Title: Improvements in or relating to aluminium articles having oxide coatings and method of impregnating same
IPC: C25D11/18
Filed: 1951-02-26
Abstract: Artificial coatings of oxide on aluminium surfaces are exposed to the vapours of at least one organo-carbon substance providing monomeric synthetic resin forming reactants, at a temperature of at least 200 DEG F., the vapours being absorbed by the coating and p  polymerized therein to a resin.  Synthetic resin forming substances specified are cinnamic acid as a source of styrene, methyl methacrylate, glycerol as a source of acrolein, furfural, furfuryl alcohol, allyl diethylene carbonate, mixtures of phenol with formaldehyde, paraformaldehyde, or trioxane, mixtures of urea with formaldehyde, mixtures of thiourea, guanidine, melamine, sulphonamide, or aniline with aldehydes and ketones and mixtures of ethylene glycol or glycerol with phthalic or maleic anhydride.
Patent GB-103562-A (GB)
Title: Improvements in or relating to the Manufacture of Tires.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B29D30/06
Filed: 1916-03-29
Abstract: 103,562. Jackson, W. J. Mellersh-, (Morgan & Wright). March 29, 1916. Vulcanizing tyres.-Relates to a method of building tyre covers comprising textile foundation, such as threads, cords, tapes, or woven, braided, and like fabrics, embedded in rubber, in which means are provided for allowing adjustment of the embedded fabric &c. before the final vulcanization. The shaped cover is heated, as by steam, up to the vulcanizing-point without the restraining effect of a mould, so that the fabric or like layers may adjust themselves as regards uniform tension, position, &c. whilst the rubber is in a viscous state. To prevent separation of the layers, this heating mav be effected in a closed container with steam at 35 lb. pressure for 20 to 25 minutes. After this part vulcanization, the tyre is placed in a compacting-mould and subjected to hydraulic pressure and heat to complete the vulcanization. To purevent distortion during the necessary cooling Letween the states of preliminary heating and final vulcanization, the steam-heat may be gradually replaced by cold air also under pressure. Specification 12274/12, [Class 87 (ii), Moulding plastic &c. substances], is referred to.
Patent GB-433265-A (GB)
Title: An improved regulating apparatus for the automatic control of the supply of powdered fuel or other flowing medium
Filed: 1935-02-13
Abstract: <PICT:0433265/III/1> In an installation, such as a furnace burning coal dust, or a steam cooler or condenser with water-spraying nozzles, wherein a flowing medium issues through nozzles the number of which is variable, a pressure responsive device confines the pressure at the nozzles within limits by automatically increasing or decreasing the number of nozzles in use.  The medium is supplied to the nozzles in accordance with requirements irrespective of the pressure at the nozzles or supply pipe, for example, in a boiler installation as shown, by a fuel pump 21 driven by a turbine 22 in response to pressure difference in front of and behind a valve 23 so that a constant supply may be maintained, which supply may be varied, for example, by automatic adjustments of the valve 23 in accordance with a working condition of the boiler 1.  The burner nozzles 2...7 are controlled by electromagnetic cut-off valves 9 and cam-operated switches 15 which are actuated in sequence by an electric motor 17. When the pressure in the supply pipe 8 passes beyond one of the limiting values, due for example to variation in rate of fuel supply, or to obstruction, the pressure responsive device 27 energizes a relay 19 or 20 which closes the motor circuit so that it runs in a direction requisite to correct the supply pressure by increasing or decreasing the number of nozzles in use.  A full opening or closing of any valve is secured by a holding circuit for the relay being closed by a cam switch 31 operated by the motor until the valve movement is completed. Manual operation of the control may be effected by switches 32, 33.
Patent GB-676471-A (GB)
Title: A new or improved stand for supporting washing basins in sinks
IPC: A47J47/20
Filed: 1950-02-25
Abstract: 676,471. Sink stands. FREEMAN, W. Feb. 23, 1951. [Feb. 25, 1950] No. 4906/50. Class 52 (iii). A stand for supporting a wash basin in a sink comprises two end members 10 formed with undercut grooves 101 to receive co-operating parts 131 of cross bars 13, the parts being readily taken apart. Alternatively, the grooves are formed near the ends of the bars 13 and the tops of the members 10 are formed to fit the grooves. Feet 11 may be provided or the underside of the members 10 may be rendered non-slipping.
Patent GB-178987-A (GB)
Title: Improvements relating to reinforcement for use in concrete construction
IPC: E04C5/04
Filed: 1921-02-11
Abstract: 178,987. Tawse, G. A. Feb. 11, 1921. Wire fabrics for reinforcing concrete consist of twisted wires of triangular, square, or other non- circular section. The weft wires b are arranged in groups of two or more wires threaded alternately under and over the warp wires a and with their ends bent over the selvedge wires.
Patent GB-441238-A (GB)
Title: Fabric cleansing system
IPC: D06F43/08
Filed: 1935-02-15
Abstract: In a dry-cleaning apparatus in which chlorinated solvents are used, which generate hydrochloric acid in the presence of water, the solvent is recovered in a still provided with a condenser having a coating or lining which has less affinity for hydrochloric acid than copper, <PICT:0441238/III/1> <PICT:0441238/III/2> and having a metal insert which has a greater affinity for hydrochloric acid than the coating, whereby the solvent is freed from acid.  A condenser, Fig. 2, consists of an outer drum 13 provided with perforated heads 14, 15 covered by manifolds 17, 18. The perforations are connected by tubes 16 made of copper and, together with other parts of the apparatus exposed to solvent vapour, are coated with nickel, silver or tin. Each tube contains a spirally twisted strip of copper 25 which imparts a swirling motion to the vapours.  Solvent vapours enter through a pipe 20 and follow a zigzag path through the series of tubes, and finally pass through an outlet 21 as liquid solvent. Water is circulated from an inlet 22 to an outlet 23.  The twisted strips are readily withdrawn for cleaning or replacement.  The condenser may be used in a dry-cleaning apparatus, Fig. 1, in which solvent such as carbon tetrachloride passes from a tank 1 to a washing chamber 2, and after use is drawn off into a sump 3. Heated air is then passed into the washing chamber and the solvent vapours pass through a condenser 11 to the sump 3.  Solvent is then pumped from the sump through a filter 6 into a main solvent still 7, the residues from which are treated in a second still 8, and the combined vapours pass to a condenser 9 of the above type, from which liquid solvent returns to the tank 1.
Patent GB-787840-A (GB)
Title: Tire curing press
Inventor: BRUNDAGE JAMES WILLIAM
IPC: B29D30/06
Filed: 1954-02-19
Abstract: 787,840. Tyre-moulding presses. NATIONAL RUBBER MACHINERY CO. Feb. 19, 1954, No. 5027/54. Class 87(2). Relates to tyre-moulding presses of the kind having an integral diaphragm 70, Fig. 15, which is expanded to force a pulley-band tyre T against mould sections 4, 19. The invention provides a plunger 72 which, after the moulding operation, pushes the closed end of the diaphragm downwardly into a well 71 to turn it inside out and strip it from the tyre, as shown in Figs. 15 and 16, this plunger being mounted in the mould section 19 which is not the section to which the diaphragm is secured. The plunger 72 is secured to the lower end of a piston rod 72a, Fig. 2, which reciprocates with respect to a fixed piston 82. The downwardly-facing part of the plunger has a conical recess which engages a conical member 77 on the diaphragm to centre the diaphragm. The open end of the diaphragm is clamped between the upper end of the well 71 and the bead ring 6 on the lower mould section. The diaphragm is raised to the vertical position by the pressure of curing medium passing through aperture A, Fig. 3, into the hollow wall of the well and thence through passages 73a. The press head includes a tyre-stripping ring 25 secured to a tube 80 fixed to a crosshead 79 which may be raised and lowered by fluid pressure cylinders 26. The lower end of the plunger 72 may be a conical projection, as shown in Fig. 8, this projection engaging a recessed head 27 secured to the diaphragm. The normal shape of the diaphragm may be approximately tyre-shaped, as in Fig. 9. Fig. 10 shows a diaphragm having a closed end 90 reinforced with spun fibreglass, fabric or metal, and this end may have a conical or recessed part to co-operate with the plunger. Modified forms of well are described, Figs. 5 to 7 (not shown). Specification 689,148 is referred to. Reference has been directed by the Comptroller to Specification 755,992.
Patent GB-568512-A (GB)
Title: Formylacetic ester
IPC: C07C69/67
Filed: 1943-03-29
Abstract: Alkali metal formyl acetic esters are prepared by reacting an aliphatic alcoholic ester of acetic acid, such as ethyl acetate, with an aliphatic alcoholic formate, such as methyl formate, and an alkali metal alcoholate such as sodium methylate, and introducing carbon monoxide under pressure.  The reaction may be carried out at elevated temperatures and in the presence of a solvent such as methanol.  The resulting sodium formyl acetic ester may be reacted with a guanidine salt, for example guanidine nitrate, without being first isolated, to yield isocytosine.  In an example, sodium methylate, ethyl acetate and methyl formate are heated with carbon monoxide under pressure. The reaction product containing sodium formylacetic ester is treated with guanidine nitrate and caustic soda to yield sodium isocytosine which on treatment with acid gives isocytosine.  Potassium alcoholate, methyl, isopropyl or butyl acetate and ethyl or isopropyl formate may be used similarly.  The Specification as open to inspection under Section 91 describes in a further example the preparation of the formyl acetic ester by reacting sodium methylate in methanol and ethyl acetate with carbon monoxide under pressure; the product is condensed with guanidine nitrate as above.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1377856-A (GB)
Title: Methods for cutting steel blanks produced by continuous rotary casting
IPC: B23D45/24
Filed: 1972-02-03
Abstract: 1377856 Flying saws SOC CIVILE D'ETUDES DE CENTRIFUGATION 3 Feb 1972 [5 Feb 1971] 5121/72 Heading B5L [Also in Division B3] A continuous tubular or solid casting 1, e.g. of steel at 900-1100 C., still advancing and rotating while being withdrawn (by rollers) from a rotated mould, is cut into lengths by a rotary saw 19, Fig. 1, carried along by the casting 1 and moved towards the casting axis. The saw, which may be cooled by water jets, is swung by an arm 8, which also supports an electric saw-driving motor 17, Fig. 2, about a pivot 11 on a frame 6, above the arm 8 and bearing a bottom plate 5. Alternatively, the saw may be mounted on a carriage for translation movement on the frame 6. A cylinder-and-piston 13, on an extension 14 from the frame, swings the arm 8. Swarf passes from a spout 21 of a casing 20 around the saws 19. An abutment 24, Fig. 2, presses on the descending casting below the saw to keep the cut open. The severed length is removed by a rotating cradle. Jaws 36, Fig. 5, for gripping the casting 1, are each slung on pivoted links 37, 38 (toothed sectors 39 on the latter ensure symmetrical movement) from a flanged sleeve 28 rotatable in support bearings 27, above the bottom 3 (see also plan view, Fig. 1) of a casing 2 supported by pivoted catches 4 on the plate 5 mounted on the bottom of the frame 6. Two hydraulic jacks 7 attached between the frame 6 and the casting machine structure raise the apparatus, and then the jaws grip the descending rotating casting 1 when the part to be cut is aligned both with the saw 19 and a semi-circular slot 23, Fig. 2, in a sleeve 22 subtended from the casing bottom 3. As the latter rotates and descends, the jacks 7 allow frame 6 and the apparatus to be drawn down by it and the bearings 27 allow the jaws 36 and their supports to be rotated by it. Compressed air to operate the jaws 36 is supplied through passages 30, 31 to two pistons- and-cylinders 40 at opposite sides of the jaws. They are attached between the ends of two shafts 42, one through each jaw 36, the cylinders of one being attached to the end of one shaft 42 at 41 and the end 43 of its piston-rod pivoted at the end of the other shaft 42.