baber/WOPTO huggingface dataset:
Patent GB-901470-A (GB)
Title: An improved method for rendering sand-cement mixtures resistant to moisture
IPC: C04B28/02
Filed: 1959-06-02
Abstract: A concrete mixture comprises sand and gravel or aggregate admixed with cement which incorporates a minor amount, e.g. 0,2 to 2,0%, by weight, of an additive material as specified in Specifications 712,419, 797,819, 801,652, 830,861 and 841,304 or an additive consisting of iron or a ferric substance but preferably a stearin or stearin/cetyl alcohol mixture, to render it moisture resistant until such time as water is purposely added for the production of concrete.
Patent GB-1036916-A (GB)
Title: Lower ketone peroxide compositions of repressed shock activity and their preparation
IPC: C07C409/22
Filed: 1963-05-13
Abstract: Compositions comprising one or more dialkyl ketone peroxides, in which each alkyl group has 1-6 carbon atoms, diallyl phthalate and water, the amount of water being insufficient to render the composition turbid, the compositions possessing a shock sensitivity which is less than the shock sensitivity of the ketone peroxide, are prepared by reacting by contact and agitation one or more dialkyl ketones with aqueous hydrogen peroxide in the presence of diallyl phthalate, preferably in the presence of a cation exchange resin. The compositions may contain 10-80% by weight of ketone in 90-10% by weight of diallyl phthalate, based on the weight of the mixture.
Patent GB-1313583-A (GB)
Title: Process for the manufacture of 21-acyloxy-3beta-17alpha-dihydroxy- 5-pregnen-20-ones
IPC: C07J7/00
Filed: 1970-04-22
Abstract: 1313583 Preparation of 21-acyloxy-3,17- dihydroxy-5-pregnen-20-ones CIBA-GEIGY AG 22 April 1970 [22 April 1969] 19195/70 Heading C2U A steroid of the formula wherein R 2  is H 2 , alkylidene, H(α-or #-alkyl) or H(α-OR<SP>1</SP>) in which OR<SP>1</SP> is free, esterified or etherified OH; R 3  is OH, or R 2  and R 3  together are α,α-methylenedioxy mono- or di-substituted by optionally substituted hydrocarbon radicals, and R 4  is carboxylic acyl, is prepared by oxidizing with a per-acid a steroid of the formula (wherein R 2  is as above, R 1  is an esterified beta-hydroxyl group and Ac is a C 1-7  alkanoyl radical), treating the reaction product with an alkaline reagent, treating the resulting 3#,17α- dihydroxy-5#,6#-oxido-20-keto-pregnane with a hydrohalic acid and then with bromine, treating the resulting 21-bromo compound with an alkali metal salt of a carboxylic acid, and then treating the resulting 5#,6#-oxido-17α- hydroxy-20-keto-21-acyloxypregnane, if desired after ketalizing any 16α,17α-diol group present, with at least 2 molar equivalents of hydrogen iodide. The treatment with HI is preferably effected at 35‹C. or below in an inert solvent using 6-8 molar equivalents of HI in the form of an aqueous solution of about 55% strength, and after the treatment a reducing agent, e.g. sodium bisulphite, is desirably added to reduce the iodine formed. The process and the preparation of the starting material is illustrated as follows:-
Patent GB-243046-A (GB)
Title: Improvements in and connected with the production of solutions containing oxides of chromium, and with the electrolytic separation of chromium from such solutions
IPC: C01G37/02
Filed: 1924-08-13
Abstract: A solution suitable for the electrodeposition of chromium is prepared by melting chromium trioxide containing less than 1.2 per cent of free sulphuric acid and substantially no other impurities at a temperature at which oxygen is given off and the material is reduced e.g. 170 DEG  C. to 200 DEG  C., the melting being carried with exclusion of air as far as possible and with avoidance of excessive stirring and being discontinued before excessive reduction causes the mass to solidify into an insoluble product, the mass being dissolved in water when the reaction has been completed.  Specification 159,887 is referred to.
Patent GB-261664-A (GB)
Title: Improvements in grinding bodies for ball-, drum- and tubular mills
IPC: B02C17/20
Filed: 1926-08-04
Abstract: 261,664. Kordt, O. Aug. 4, 1926. Ball and like mills.- Grinding-bodies for use in ball, drum, and tubular mills are of approximately equal diameter both vertically and transversely and are formed with flattened and plain surfaces angularly disposed to one another. The bodies may be of cubical shape with sharp or rounded edges. Fig. 3 shows a cubical body with all its edges rounded so as to form circular plain faces c; and Fig. 4 shows a globular body with six plain surfaces d. The main portion of the body may be a parallelopipedon having head portions shaped as obelisks. Fig. 7 shows a body with its main portion shaped as a six-sided prism i and the head portions limited each by six pentagons k and a hexagon m. In Fig. 9, the six-sided main portion of the body is limited by two squares n and four hexagons o, the head portions being roof-shaped and having two oblique and hexagonal surfaces p with rounded edges and two quadrangles q. In another modification, Fig. 11, the middle portion of the grinding-body r is cylindrical and has both its ends roof-shaped or tapered, forming at each end two oblique surfaces s at an angle. The grinding bodies may be of steel &c., and are particularly applicable for the fine grinding of Portland cement.
Patent GB-421831-A (GB)
Title: The manufacture of pure 1-amino-2.3-dimethylanthraquinone
IPC: C09B1/22
Filed: 1933-07-07
Abstract: Pure 1-amino-2 : 3-dimethylanthraquinone is obtained by nitrating a crude mixture of 1 : 2 and 2 : 3-dimethylanthraquinone with at least one molecular proportion of nitric acid, advantageously in the presence of sulphuric acid, reducing the nitro group thus introduced and separating the mixture of isomeric amino-dimethylanthraquinones formed by taking advantage of the different solubilities of the sulphates thereof in water containing sulphuric acid.  The sulphate of the pure 1-amino-2 : 3-dimethylanthraquinone separates almost entirely, first. According to the example, a crude mixture of the 2 dimethylanthraquinones, obtained by condensing 3<1> : 4<1>-xyloyl-2-benzoic acid with concentrated sulphuric acid, is nitrated and the precipitate reduced by means of sodium sulphide. The sulphate of the 1-amino-2 : 3-dimethyl derivative is separated in sulphuric acid solution, isolated and decomposed with hot water. p
Patent GB-517517-A (GB)
Title: Improved method of and apparatus for storing and transporting molten materials
IPC: B22D41/00
Filed: 1938-06-29
Abstract: 517,517. Aluminium articles. GRUBER, H. June 29; 1938, No. 19359. [Class 83 (ii)] Vessels for storing or transporting melts used in the manufacture of light metals such as aluminium, magnesium, alkali and alkaline earth metals, and their alloys; for example, by electrolytic processes, are made of aluminium or aluminium alloys of such thermal capacity as to cause the formation therein of a protective crust of solidified melt during the use of the vessel.
Patent GB-1219875-A (GB)
Title: Improvements in apparatus and method for transforming and testing of electrical coils in an inductive device
IPC: H01F41/00
Filed: 1969-04-16
Abstract: 1,219,875. Electro-magnetic forming of coils. GENERAL ELECTRIC CO. 16 April,1969 [22 July, 1968], No. 19385/69. Heading B3A. In a method of transforming a coil of an inductive device, e.g. a stator 10 of a dynamoelectric machine, the device is arranged with at least one coil in a load circuit, a pulse of electrical energy is passed through the coil to transform it from one configuration to another, and the load circuit is connected subsequently with a test circuit to determine possible defects in the coil. A fixture 26 is placed in the bore 13 of the stator and a primary winding 30 thereon is inductively coupled with the coils of the stator winding 15. The winding 15 is short circuited and the pulse of electrical energy passed through the winding 30, thereby pushing away coil groups 16-19 of the winding 15 away from the stator bore 13. The load circuit is then automatically connected to a winding quality test circuit, which conducts a high potential voltage test between the winding 15 and the stator core 10. If there is no fault detected, the winding 30 is short circuited and a pulse of electrical energy of greater magnitude than the first pulse passed through the winding 15. The quality test between the winding 15 and the stator core 10 is then automatically repeated.
Patent GB-1036628-A (GB)
Title: Apparatus for the automatic tying of coils of wire
IPC: B65B27/06
Filed: 1963-05-16
Abstract: 1,036,628. Twisting wires together. SCHLOEMANN A.G. May 16, 1963 [May 16, 1962], No. 19448/63. Heading B3E. [Also in Division B8] An apparatus for the tying of coils of wire has means to pass a length of wire through the coil and gripper arms mounted on a reciprocable carriage and with grippers at their extremities which clamp the ends of the length and move, first to wrap and tension it round the coil section and then to twist the wire ends together. The wire length may be fed by the arms themselves. In one embodiment in which two ties are made simultaneously by identical mechanisms on opposite sides of a coil 35, arms 31, 32 carry gripper jaws 5a, 5b which before operation are positioned approximately above and below the centre of the coil. The tying wire for each mechanism is drawn from a coil and fed through a hollow needle which carries it through the upper open jaws 5a to the lower jaws 5b. These grip the wire and the needle withdraws with the wire sliding through it until the jaws 5a close to grip and sever the wire length. The arms 31, 32 are pivoted in a housing integral with a hollow shaft 33 mounted on a carriage 34, 34a and are moved relative to each other by the power unit 40 connected through a control rod 42 to the ends of the gripper arms. The axes 45 of the arms are inclined to each other to allow their ends to cross and assume a twisting position. The shaft 33 is rotatable in the carriage. The two carriages are moved radially outwards until each wire reaches the inner surface of the coil when the arms swing towards each other and cross over to wrap the wire about the coil. Each shaft 33 is then rotated to effect twisting . The carriages 34, 34a are both driven by a power unit 49 which moves the former directly and the latter through rack and pinion means 53-55, to ensure synchronous operation. A modified form of construction is shown in Figs. 7, 9 (not shown)
Patent GB-824883-A (GB)
Title: Method of burning sulphur-containing solid fuels
IPC: F23G7/00
Filed: 1957-06-21
Abstract: Sulphur-containing shales, e.g. shale leached with dilute sulphuric acid, or other solid fuels, e.g. sulphur-containing coal or tar sands, are burnt in a fluidized bed in the presence of sufficient alkaline earth metal carbonate, e.g. limestone or dolomite, to bind the main part of the sulphur content as sulphate in the solid combustion residue, the grains of the solid fuel being below 6 mm., preferably below 4 mm., and the temperature being below the temperature of rapid dissociation of the carbonate, preferably between 625 DEG  C. and 850 DEG  C., especially 700 DEG  to 800 DEG C.  A small amount of a halogen or a halogen compound which will liberate the halogen under the combustion conditions, e.g. chlorine or sodium, calcium, or ferric chloride, may be mixed with the fuel, preferably in the amount of 0.2 equivalents of halogen per equivalent of sulphur.  A catalyst for the reaction 2SO2 + O2 --> 2SO3 may also be present.  Air may be added in excess of that required for the combustion so that the oxygen content in the flue gas is 3-10%, preferably 5-8%, by volume.  The fuel preferably remains in the fluidized bed for at least 15 minutes.
Patent GB-301100-A (GB)
Title: Improvements in or relating to the manufacture of articles of rubber and similar substances from aqueous dispersions containing such substances
IPC: C09D5/44
Filed: 1927-07-25
Abstract: 301,100. Dunlop Rubber Co., Ltd., and Twiss, D. F. July 25, 1927. Emulsions, making.-Rubber, balata, &c., or other organic material such as rubber reclaim in the form of a dispersion which may be natural or artificial, concentrated or vulcanized, or may contain vulcanizing Ingredients and fillers, are treated by adding acetic acid, or other acid substance in excess of the quantity required for coagulation, the product being a stable dispersion the particles of which are positively charged.
Patent GB-1499150-A (GB)
Title: Process for the production of pumpable slurries from waxy hydrocarbon mixtures
IPC: F17D1/08
Filed: 1975-05-09
Abstract: 1499150 Conversion of crude oils into transportable slurries MARATHON OIL CO 9 May 1975 [13 May 1974] 19679/75 Heading C5E Waxy hydrocarbon is fractionated into a high pour point, wax-containing fraction and a liquid low pour point fraction, the wax-containing fraction is formed into discrete congealed wax particles which are slurried in a liquid hydrocarbon comprising or consisting of the low pour point fraction; the wax particles are formed by introducing the molten, wax-containing fraction into a concurrent stream of hot, wax-immiscible liquid flowing through a column at substantially the same speed and having a temperature below that of the molten wax at the point of introduction of the wax into the column but above its pour point to form discrete, partially solidified substantially round wax particles which are then introduced into a further concurrent stream of wax-immiscible liquid having a temperature below the solidification point of the wax particles. As shown the particles can be formed in a single vertical column in which the wax-containing fraction flows upwardly, and concurrently with a water stream, so that the water which the wax contacts at the lower portion of the column is at a higher temperature than the water which the wax contacts at the upper portion of the column.
Patent GB-1495920-A (GB)
Title: Electric mowers
IPC: A01D69/02
Filed: 1976-05-13
Abstract: 1495920 Electric mower motor INTERNATIONAL HARVESTER CO 13 May 1976 [8 Sept 1975] 19691/76 Heading A1F The electric motor 10 of a mower is cooled by air flow generated by the mower cutting blade 14 through inlet apertures 46 and outlet apertures 48, the air flow thus avoiding the brushes 30 and commutator 28 of the motor. A thermal switch 38 is mounted in the motor housing near the brushes and commutator but out of the path of the air flow for efficient sensing of the motor temperature so that if the motor overheats the power supply thereto is cut off.
Patent GB-147731-A (GB)
Title: Improved method of working a four-stroke cycle internal combustion engine
IPC: F02B23/00
Filed: 1920-07-08
Abstract: 147,731. Junkers, H. Nov. 23, 1918, [Convention date]. Regulating.-Liquid fuel at a high pressure is injected into an air charge which enters the cylinder through a valve 4 and flows in a direction substantially at right-angles to the fuel spraying- nozzle 25. Fuel is delivered by a pump 10 actuated by linkage gear comprising a crank-arm 14 driven through a two-to-one reduction gear from the crank-shaft 3. The commencement of the fuel injection may be varied by rotatably adjusting the pin 30, or by adjusting through the rod 46 an arm 31, which is connected to the bell-crank 44 by a rod 41. To adjust the pump simultaneously with a throttle valve 35 in the inlet pipe, the valve 35 is connected by a rod 40 to a bell-crank 43 carrying the second bell-crank 44, the control being effected by a rod 45.
Patent GB-799707-A (GB)
Title: Improvements in hardenable compositions containing epoxy resins
IPC: C08G59/42
Filed: 1955-07-08
Abstract: Resinous compositions suitable for use in the production of putties, lacquers, adhesives, &c. consist of (a) an epoxy resin containing more than one epoxy group in the molecule; (b) a polymerizable olefinically unsaturated compound other than an allyl ether and containing no epoxy groups; and (c) a saturated polycarboxylic acid or anhydride.  There are specified as (a) reaction products of polyhydric phenols, e.g. 4,41-dihydroxy-diphenyldimethylmethane with epichlorhydrin, glycidyl ethers of polyhydric alcohols; (b) styrene, esters of unsaturated alcohols or acids, e.g. diallyl phthalate, acrylic acid esters; (c) phthalic or maleic acids.  Suitable polymerization catalysts may be added, e.g. di-tertiary-butyl peroxide, benzoyl peroxide and accelerators, e.g. cobalt naphthenate. In examples: (1) 100 parts of an epoxy resin having an epoxy number of 0.25 are mixed with 30 parts of phthalic anhydride and 50 parts of styrene.  On adding 2 parts ditertiary butyl peroxide the mixture hardens in 4 hours when heated to 130 DEG  C.; (2) 50 parts diallyl phthalate and 90 parts phthalic acid anhydride are dissolved at 50-70 DEG  C. in 100 parts of a liquid polyglycidyl ether having an epoxy number of 7 and prepared from glycerine and epichlorhydrin; (3) 50 parts epoxy resin, 50 parts glycidyl ether as in (2), 50 parts diallyl phthalate and 60 parts phthalic anhydride.
Patent GB-1216237-A (GB)
Title: Electrostatic spary gun
IPC: B05B5/16
Filed: 1968-04-26
Abstract: 1,216,237. Coating apparatus; spray producers. LICENTIA PATENT VERWALTUNGS G.m.b.H. 26 April, 1968 [28 April, 1967; 29 April, 1967; 29 Dec., 1967], No. 19867/68. Headings B2F and B2L. In an electrostatic spray gun comprising a container for the material to be sprayed and a handle, the container is provided at one end both with a plate carrying a spray head and a connecting member for applying high voltage to the spray head. The gun has a body 1 the upper part of which constitutes a liquid container, and the lower part of which is a separate compartment 3 housing a high tension cable 4. The front end of body 1 is closed by a detachable cover 5 supporting a nozzle 7 having a hollow stem 6 projecting into the liquid container. Stem b is electrically connected via a plate 8 and plug member 9 to cable 4 when cover 5 is in position. The front end of body 1 may be provided with a hook member (13) by means of which the gun may be suspended from a fixed support to lower the level of the liquid below stem 6. Hooks (13) is formed with a passage which serves both to vent the container and also as a filling means therefor. The gun has a handle Z provided with a button (20), pressure on which actuates a Bowden cable to energise cable 3 via a cable 15' from an external high tension generator. The Bowden cable also serves to earth the handle.
Patent GB-314500-A (GB)
Title: Process for the production of a sprinkling powder containing artificial sweetening agents suitable for use by diabetic subjects
IPC: A23G3/00
Filed: 1929-06-28
Abstract: 314,500. Kreidl, I. June 28, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Sugar substitutes.-A sprinkling powder suitable for use by diabetic subjects is obtained by mixing a known artificial sweetening agent such as saccharine, dulcine or the like with a carrier inert to the sweetening agent and resistant to weak acids, e.g., calcium phosphate. The powder may be produced either by intimately mixing the sweetening agent with the carrier in a dry state or by mixing the carrier with a solution of the sweetening agent, whereupon the solvent is removed by volatilization, evaporation, or the like.
Patent GB-367291-A (GB)
Title: Improvements in cast wheels particularly adapted to be used in connection with airplanes
IPC: B60B3/00
Filed: 1931-07-10
Abstract: 367,291. Vehicle wheels. CHARLES, M., 217, Boulevard St-Denis, Courbevoie, Seine, France. July 10, 1931, No. 19913. Convention date, July 19, 1930. [Class 144 (i).] A wheel, particularly for use in aircraft, is cast in one piece from a light alloy and comprises a rim a, perforated side discs c, e, and radial and transverse webs h which form with the side discs c, e, double-T bracing pieces. The inner disc e may be recessed, as shown, to house the brake drum f.
Patent GB-147912-A (GB)
Title: Slab floors formed of reinforced bricks or hollow reinforced concrete blocks, these floors being transportable in slabs
IPC: E04C3/22
Filed: 1920-07-09
Abstract: 147,912. Doms, J. Feb. 19, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Tunnels.-Tunnels are formed by placing side by side beams or slabs A consisting of rows of bricks or blocks grooved on their undersides to receive connecting reinforcing bars which are shaped to the required curve. The bricks or blocks are hollow or perforated and may vary in size to avoid straight joints in the slabs. The structures may be strengthened by placing re inforced concrete or other beams B between the slabs and by increasing the number of grooves and bars.
Patent GB-301555-A (GB)
Title: Improvements relating to drawing-off taps for casks or other like containers
IPC: B67D3/04
Filed: 1928-03-21
Abstract: 301,555. Arnold, S. H., and Bradshaw, C. W. March 21, 1928. Plug cocks.-A plug cock 1 controlling the outlet of a cask or like container simultaneously regulates the venting through an external tube 9, a secondary twoway cock 13 in the tube 9 enabling the air supply to be independently shut off or further controlled. The tap 1 is formed with a main passage 2 and a secondary passage 3 putting an external orifice 6 into communication with a nozzle 8 to which the flexible or other pipe 9 is attached. The ports may be positioned or shaped so as to admit air to the container slightly in advance of the drawing off position.
Patent GB-586656-A (GB)
Title: Improvements in or relating to releasable chocks and like strutting devices
IPC: E21D15/60
Filed: 1944-10-17
Abstract: 586,656. Releasable chocks for mines &c. POWELL DUFFRYN, Ltd., and FENNELL, W. F. Oct. 17, 1944, No. 20092. [Class 20 (ii)] Relates to releasable chocks and like strutting devices, particularly for use in mines, of the type comprising movable load-supporting heads or caps engaging inclined surfaces on stationary props, and levers adapted to be so locked as to support the movable heads in the load-carrying position or to be released to allow the movable heads to slide down the inclined surfaces and so reduce the effective height of the props. A horizontal bar frame 10 of channel section with opening upwards, extends upwards at each end to form a post or prop 11. The upper surface of each post inclines downwards towards the end of the frame. A movable head or cap 12, having a horizontal upper surface and inclined lower surface, is mounted on each post 11. Pins 17 form the fulcrums of two retaining levers. Each lever has a long arm 15, and a short arm 16 in the form of a claw. In the load-supporting position of the levers, the short arms 16 engage the lower ends of the movable heads 12, while the long arms 15 are horizontal and their lower ends are located, with a small gap between them, at the centre of the frame 10 in which position they are held by a plate 18 which passes over their inner ends and extends through slots 19 in the side members of the frame. One end of the plate 18 extends beyond the side of the frame and has a hole for the connection of a rope by means of which it can be pulled away, when the load transmitted through the parts 12, 16 will cause the arms 15 to fly upwards, so releasing the two ends of the chock simultaneously. Specification 342,046 is referred to.