baber/WOPTO huggingface dataset:
Patent GB-670194-A (GB)
Title: An improved mercury pumping system
IPC: F04F5/10
Filed: 1949-05-26
Abstract: 670,194. Centrifugal separators. TRIGGS, W. W. (Wyandotte Chemicals Corporation). May 26, 1949, No. 14095/49. Class 23 [Also in Group XXVIII] A centrifugal separator for use in a mercury pumping system (see Group XXVIII) comprises a circular chamber 13 having a tangential inlet 12 for the mercury which is entrained in a stream of lighter liquid such as water. The chamber has a dished bottom 14 around which the mercury is collected at 15 and is drained out through a passage 16. The lighter liquid rises through a central neck 18 and passes to a circulating pump P. A gas escape 21 is provided. The term mercury includes liquid mercury containing dissolved sodium or other amalgamated metals or elements.
Patent GB-422825-A (GB)
Title: Improvements relating to piece dyeing machines
IPC: D06B3/26
Filed: 1934-05-11
Abstract: <PICT:0422825/IV/1> A piece-dyeing machine comprises, in combination, a dye-vat divided into upper and lower spaces by an inclined perforated plate which supports the cloth, a boiling box in communication with the upper space of the dye-vat, a stuffing box for receiving the dyestuffs in communication with the boiling box, means for raising the dye liquor to boiling point, means for circulating the liquor through the vat, and means for moving the cloth through the machine.  As shown, a vat 1 is divided off by perforated partitions 5, 6 into compartments, 7 for the introduction of dyestuffs, 8 for the introduction of steam from pipe 15, and 9 the liquor chamber.  The latter contains a perforated plate 10 down which the cloth travels.  A pump 11 circulates the dye liquor.
Patent GB-865095-A (GB)
Title: Uranium recovery process
Inventor: STEVENSON JOHN WALKER
IPC: C22B60/02
Filed: 1957-05-03
Abstract: Uranium values are recovered from the magnesium fluoride slag, obtained in the reduction of uranium tetrafluoride with magnesium to obtain metallic uranium, by crushing the slag and roasting it in air, preferably at 350 to 525 DEG C., to convert the uranium to uranium oxide, and then contacting the roasted slag with an aqueous alkali metal bicarbonate solution to take up the uranium values as uranyl carbonate.  The solution obtained may be treated with alkali metal hydroxide to precipitate the uranium as sodium diuranate, or it may be contacted with an anion exchanger in sulphate, chloride or bicarbonate form.  The uranium taken up may be eluted with sodium chloride or sodium nitrate preferably in a concentration of 4M.  The roasting may be effected in the presence of sodium carbonate or bicarbonate and the roasted slag should be cooled in a carbon dioxide atmosphere and preferably neutralised with dilute sulphuric acid before leaching, since the latter is more effective at a pH below 9.5.  Mixtures of sodium carbonate and bicarbonate may be employed for leaching and an oxidizing agent is preferably added to the leach solution.  The preferred oxidizing agent is hydrogen peroxide, added incrementally, but potassium permanganate, or calcium hypochlorite may be employed.  Alternatively the leaching may be effective at superatmospheric pressures when no oxidizing agent is required.  The addition of a minor amount of calcium nitrate to the leach solution has a catalytic effect, and the leaching is also improved by presaturating the leach solution with magnesium fluoride.
Patent GB-215976-A (GB)
Title: Improvements in sound-reproducing machines
IPC: G10K13/00
Filed: 1923-05-30
Abstract: 215,976. Columbia Graphophone Co., Ltd., and Forse, W. T. May 30, 1923. Drawings to Specification. Tone-arms may be made of aluminium alloy, preferably containing 90 per cent of aluminium, 5 per cent of zinc and 5 per cent of copper. Specification 212,137 is referred to.
Patent GB-856868-A (GB)
Title: Improvements in or connected with paint brushes and the like
IPC: A46B15/00
Filed: 1957-05-06
Abstract: 856,868. Paint brushes. SPA BRUSHES Ltd., and WILCOCKS, E. A. Nov. 6, 1957 [May 6, 1957], No. 14307/57. Class 19. [Also in Group XXV] In a paint brush or the like having bristles 3 cemented into a ferrule 2 in which a handle 6 is also secured, a non-swelling but compressible wedge or wedges 1 is or are secured between the bristle roots to absorb swelling of the latter. An outwardly facing metal channel wedge may be used as shown with ends closed by bonding over part of the metal strip ; or the wedge material may be compressible, e.g. rubber, or a sheet or hollow moulding of synthetic resin. The wedge is held by the vulcanized rubber, epoxy resin, &c. bristle cement 4 and by pins 5.
Patent GB-1435311-A (GB)
Title: Decorative or structural members containing particulate metal
IPC: C04B28/04
Filed: 1973-03-26
Abstract: 1435311 Cementitious compositions H LITWIN 26 March 1973 [5 April 1972] 14329/73 Heading C1H [Also in Division C3]  A decorative or structural member comprises or has a surface layer comprising, a matrix of a hardened epoxy resin or a butadiene styrene copolymer n Œ cement containing sufficient metal particles to impart a metallic appearence. Such a mixture can be placed in a mould and then asbestos cement or concrete poured over it, the mould vibrated and the two layers pressed together to form the member.
Patent GB-777177-A (GB)
Title: Improvements in or relating to methods of welding rails
IPC: B23K9/038
Filed: 1955-05-18
Abstract: 777,177. Casting composite-articles and joints. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 18, 1955 [May 21, 1954], No. 14365/55. Class 83 (1). Rails are joined by welding with low-hydrogen electrodes, the foot-joint being made first by melting the electrode into the space enclosed by copper members 3-5 and then immediately part of the mid-section of the rails are joined using auxiliary members 6, 7, which enclose the mid-section for only part of its height, after which the operation is conpleted by the use of auxiliary members 8, 9. The auxiliary members are spaced from the rail to leave a channe 1 for slag to flow away.
Patent GB-767443-A (GB)
Title: A new or improved method of and apparatus for forming the bodies of turn buckles and similar shaped articles
Inventor: HODSON GEORGE
IPC: B21K1/74
Filed: 1954-05-18
Abstract: 767,443. Making turnbuckles and the like; forging; welding by pressure. BROCKHOUSE & CO., Ltd., J. May 17, 1955 [May 18, 1954], No. 14503/54. Classes 83 (2) and 83 (4). A method of making the body of a turnbuckle or the like, comprises disposing two similar bars 13 of upsettable and weldable metal in side-by-side relationship with their ends transversely opposite to one another heating the bars to forging temperature, upsetting each pair of transversely opposed ends in the direction of their length and thereby bringing the upset portions into abutting engagement with one another and pressurewelding the abutting portions together to form the ends of the tumbuckle or the like. The two parallel bars 13 are held in a die 10 whilst a second die 11, formed with a recess 17, is moved towards the die 10 so as to upset the ends of the bars 13 and weld them together. The recess 17 also shapes the welded ends to the correct form required for the end of the turnbuckle 19, Fig. 2 (not shown). After forming one end of the tumbuckle, the bars 13 are removed from the die and re-inserted in the opposite direction whereby the other end of the turnbuckle may be formed. Alternatively both ends of the tumbuckle may be formed simultaneously in which case two dies 11 are provided at opposite ends of the die 10 and the latter is split to facilitate removal of the turnbuckle. The tumbuckle is afterwards subjected to heat treatment and the ends are bored and tapped for receiving threaded rods.
Patent GB-1186552-A (GB)
Title: Device for Projecting Symbols on a Light-Sensitive Recording Carrier
IPC: H01J17/49
Filed: 1967-03-30
Abstract: 1,186,552. Semi-conductor pulse circuits. SVENSKA DIAMANTBERGBORRNINGS A.B. 30 March, 1967 [1 April, 1966], No. 14556/67. Heading H3T. [Also in Division H1] The input terminals 11 and 12 of a pulse generator are connected, respectively, to the output from a diode matrix and to a synchronizing voltage, the collector of transistor 13 drawing current, when both input terminals are activated, thereby activating the thyristor 14 and causing the capacitor 15, which is charged through resistor 16, to discharge over the primary winding 17 of the transformer T. The pulse from the output winding 18 is applied to an arrangement for providing illuminated digit shapes (see Division H1).
Patent GB-673676-A (GB)
Title: Improvements in and relating to the production of artificial protein threads, filaments and the like
IPC: D01F4/00
Filed: 1949-05-31
Abstract: Artificial threads are obtained from proteins which have been subjected to the denaturing action of sodium sulphide, sodium bisulphite, sodium thioglycolate, or thioglycol, and the threads are stretched at a temperature not less than 70 DEG  C.  The threads obtained are of high tenacity.  The denaturing compound may be incorporated in the spinning solution.  The stretching may take place during or subsequently to hardening.  It may be effected in an aqueous medium such as hot water, hot salt solution, or steam, and the elongation may be at least 100 per cent of the original length. Stretching may be effected in stages, e.g. stretching in a hot aqueous hardening bath may be followed by stretching in steam.  The stretched threads may be subjected to one or more hardening or insolubilizing baths so as to improve the resistance to hot water, hot dilute alkalies, and hot acids.  In an example, lactic casein is soaked in water for several hours and then dissolved in caustic soda solution.  Sodium sulphide is added to the solution which is then allowed to stand for 16 hours.  The solution is centrifuged, and filtered under vacuum, and then extruded into a solution of sodium and magnesium sulphates having a pH value of 8.5.  The tow of parallel continuous filaments obtained is stretched by passing it round staggered tapered rollers rotating in a bath at 55-60 DEG  C. containing sulphuric acid, sodium-, magnesium-, and aluminium-sulphates, and formaldehyde.  The tow is then further stretched in a more dilute bath at 90 DEG  C. containing the same constituents.  The total stretch is 550 per cent.  The tow is further hardened by treatment with a solution of sodium sulphate and formaldehyde of pH 5.0 at 35 DEG  C., and with a solution at 40 DEG C. of sulphuric acid, formaldehyde, and sodium and aluminium sulphates.  In another example, the coagulating bath contains sulphuric acid, formaldehyde, and sodium and aluminium sulphates. Specifications 502,710, 549,642, 564,591, 567,904, 573,015, 614,506, 645,390, 652,988, and 653,188, [Group IV (b)], are referred to.
Patent GB-586972-A (GB)
Title: Improvements in or relating to water-softening plant
IPC: C02F1/52
Filed: 1944-07-31
Abstract: 586,972. Softening water. THOMPSONKENNICOTT, Ltd., J., and PAGE, G. C. July 31, 1944, No. 14591. [Class 46] A water-softening plant for treatment of water by the lime or lime-soda process comprises a mixing compartment A an outlet 2a therefrom to a channel leading to the lower part of a settling compartment B and means, for example, a pipe 5 with non-return valve 6 for conducting by gravity precipitated solids to the mixing compartment. The water to be softened enters by pipe 24 and the reagent is supplied through pipe 7. The mixture is agitated by two devices driven from a motor 26, one device comprising rotating arms 12 cooperating with stationary bars 13 and the other device comprising a hollow T-piece 14 provided with arms 15 carrying vertical blades 16. Softened water is withdrawn through pipe 31. The height of the sludge blanket formed in the settling compartment B is adjustable by means of one or more collecting chambers 27 each provided with an adjustable weir 28. Sludge from each chamber may be conducted by a pipe to the settling compartment. Surplus sludge in this compartment is removed through holes 17 in the arms 15 leading to a discharge pipe 19, the valve 20 of which may be controlled manually or automatically, or may be left partly open.
Patent GB-312789-A (GB)
Title: Improvements in or relating to hot water boilers for use in connection with domestichot water systems
IPC: F24C13/00
Filed: 1928-05-18
Abstract: 312,789. Senior, J. A. May 18, 1928. Block-form boilers.-A boiler adapted for connection with the circulation pipes of a fire-place boiler for alternative or additional heating by gas, comprises a flat cylindrical casing 1 with top and bottom tube plates 2, 3 joined by flue tubes 3<a>, the upper plate being formed to accommodate a pan or kettle and the body being provided with upper and lower pipe connections 6, 7, for attachment to the circulation system.
Patent GB-703102-A (GB)
Title: Improvements in and relating to the production of wood pulp
Inventor: ALDRED FRED CROWTHER
IPC: D21C3/22
Filed: 1951-06-21
Abstract: Wood-pulp is obtained by cooking wood-chips with an aqueous solution of a bisulphite containing an excess of sulphur dioxide, the sulphite liquor being continuously circulated through a closed system comprising a vessel containing the wood-chips, one or more heaters, a second vessel containing copper, which may be in the form of gauze or filings, and a separating device, such as a filter, for removing copper sulphide from the liquor before it is again passed through the vessel containing the wood.  The presence of copper inhibits or <PICT:0703102/IV(a)/1> reduces the formation of sulphate, particularly scale-forming calcium sulphate.  Copper sulphide is formed during the cooking. As shown, wood chips are packed in vessel 1, and the sulphite liquor is continuously circulated through vessel 1, external heater 2, pump 3, a second heater 4, a container 5 containing copper, and a filter 6 for removing copper sulphide.  If desired, the vessel for the wood, the vessel for the copper, and the filter, may be built into a single container which has three separate but connected compartments.  In an example, spruce wood-chips are packed in container 1, and copper gauze is placed in container 5. Sulphite liquor containing 6 per cent. total sulphur dioxide and 1.2 per cent. combined sulphur dioxide in the form of sodium sulphite is continuously circulated through the system, the temperature being raised gradually to 110 DEG  C., kept at this temperature for 2.5 hours, then raised gradually to 150 DEG  C., and maintained at this point for 1.67 hours.  The maximum pressure is 120 lb. per sq. in. Specification 206,570, [Class 2 (ii)] is referred to.  The Provisional Specification describes a process in which the sulphite liquor, the wood, and the copper are heated together in a single vessel.
Patent GB-354786-A (GB)
Title: Improvements in sewage distributor pipes, sparge pipes and the like
IPC: F16L41/02
Filed: 1930-05-14
Abstract: 354,786. Liquid distribution. WICKHAM, G., 5A, Friends' Road, Croydon, Surrey. May 14, 1930, No. 14783. [Class 69 (iii).] Distributing pipes for sewage disposal, fire extinguishing and other sprinklers are formed with a flat or slightly cambered bottom surface a, Figs. 1 and 3, with orifices b spaced along one or both sides of the pipe at the edges of the bottom surface. The pipes may be formed in two sections, the flat or cambered bottom a, Fig. 3, forming one section, to which is bolted the other section e with separating or distance-pieces d to form slots or orifices b.
Patent GB-528944-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: H05K11/00
Filed: 1939-05-17
Abstract: 528,944. Lamps combined with wireless sets. CROWLEY, D. J. May 17, 1939, No. 14784. Convention date, June 20, 1938. [Class 75 (iii)] [Also in Groups XL and XXXVI] Ganged tuning condensers symmetrically arranged about a common axis provided with gearing from which the condenser rotors are driven are provided with means which periodically resist rotation and thus indicate to the touch of the operator correct tuning alignment and which comprise a first member provided with a plurality of spaced recesses and a second member yieldably urged to engage the recesses and connected to the central gearing. The condensers may be mounted in a standard lamp arranged to house a receiving set as described in Specifications 508,580 and 512,141. The condensers are mounted symmetrically in the base 20 of the pedestal on the arms 25 of a spider 26 and the rotors are provided with pinioned gear wheels 38 meshing with a central gear wheel 37 driven through a spider 43 from a tubular shaft 41 passing through the axis of the standard. Periodic interruption of the rotation of the rotors is obtained by means of a spring pressed plunger 65 mounted on the gear wheel 37 and provided with a roller 69 which engages with recesses 85 in a segment 66 formed of sections 74 which are separately adjustable so that they can be preset in accordance with selected tuning positions. The plunger 65 may be withdrawn from contact with the segment 66 by means of a bell-crank lever 88 which is rocked by depression of a shaft 90 located axially within the shaft 41. The tuning controls and dials (Fig. 3) comprise a bevelled ring 40 rotatable round a hub 47 formed on the column and provided with a dial 45 viewed through slots 45 in the casing. The ring 40 drives the shaft 41 through gearing 48, 50, 51, 53 and shafts 52 and also drives a ring 56 carrying a station indicating band 54 through gearing 59, 60, 62. Depression of the shaft 90 locating the plunger 65 is obtained by means of a cam 92 formed on a ring 93 rotation of which causes depression of a finger 95 bearing on the shaft 90. Rotation of the shaft 90 by a ring 101 operating through gearing 103, 105 operates the combined volume control and on-and-off switch 97. A tone control 24 is operated by rotation of a tube 110 mounted axially with the column 22. The location of the various parts of the receiver in the shade and base of the lamp is shown in Fig. 17. A. modified construction for mounting the receiver in a table lamp is described with reference to Figs. 15 and 16 (not shown) in which the locating segment is mounted rotatably with the gearing driving the rotors and the spring pressed plunger is mounted in a fixed position adjacent the outer periphery of the segment.
Patent GB-1359816-A (GB)
Title: Electrical circuit
IPC: H03K19/10
Filed: 1973-03-28
Abstract: 1359816 Shift registers INTERNATIONAL BUSINESS MACHINES CORP 28 March 1973 [26 June 1972] 14835/73 Heading G4C [Also in Division H3] A circuit comprises a first bi-stable resistance H1, H2 and a second bi-stable resistance H3 connected in series at a node N1, each resistance having a characteristic such that current in one direction in excess of a threshold causes the resistance to switch to a high resistance state, and current in the other direction in excess of a threshold causes the resistance to switch to a low state; and means for passing current through the resistances such that both resistances assume the high state, or both the low state, or one the high state and the other the low. A single pair of elements may thus provide four stable states in dependence on the relative values of the potentials # 1 , # 1R  applied at the ends of the series circuit and on the current applied at the node N1. Alternatively, as shown, a chain of similar stages may be used as a shift register, the potentials VR, # 1 , # 1R , # 2 , # 2R  being suitably phase clock signals, Fig. 4 (not shown). In a first "reset" state, VR, # 1 , # 1R  switch H1, H2 to their low state and H3 to its high state, (the "0" state of the stage). In the next "transfer" state a "1" input at IN causes H1, H2, H3 to change their states giving the "1" state of the stage. A subsequent "reset" state sets the resistors of the next stage to "0", and a following "transfer" state will transfer the "1" from the first stage to the second.
Patent GB-1470717-A (GB)
Title: Flame retardant system
IPC: C09K21/08
Filed: 1974-04-03
Abstract: 1470717 Flame retardant compositions UNIROYAL Inc 3 April 1974 [3 April 1973] 14867/74 Headings C3P and C3R Flame-retardant compositions comprise (1) an ABS polymer or polyurethane polymer and (2) 1,2,3,4,9,9 - hexachloro - 1,4 - dihydro - 1,4- methanonaphthalene - 5,8 - diol. The polyurethane may be a polyether-based polyurethane.
Patent GB-600916-A (GB)
Title: Alkyl ester copolymers
IPC: C08L67/06
Filed: 1944-08-03
Abstract: Clear, colourless, insoluble resins are prepared by copolymerizing a homogeneous mixture including (1) a polyester of an allyl alcohol with a polybasic acid containing no alpha-beta ethylenic unsaturation; (2) a polyester of a saturated monohydric alcohol with an alpha-beta-unsaturated dicarboxylic acid and (3) a catalyst for the copolymerization.  Specified allyl esters are diallyl carbonate, diallyl malonate, diallyl oxalate, diallyl succinate, diallyl gluconate, diallyl methyl gluconate, diallyl adipate, the diallyl ester of azelaic acid, diallyl sebacate, diallyl tartronate, diallylphthalate, diallyl ester of endomethylene tetrahydrophthalic anhydride, triallyl tricarballylate, triallyl citrate, triallyl phosphate, triallyl silicone, the diallyl ester of ethylene glycol dicarbonate, the diallyl ester of ethylene glycol dimalonate, the diallyl ester of ethylene glycol dioxalate, the diallyl ester of diethylene glycol dicarbonate, the diallyl ester of diethylene glycol dimalonate, the diallyl ester of diethylene glycol dioxalate, the diallyl ester of carbonic acid and tetra-allyl silicate.  Instead of allyl alcohol homologues such as methallyl, ethallyl and 2-chlorallyl alcohol may be used as may also mixed esters such as monoethyl diallyl tricarballylate and mixtures of the various allyl esters. Specified saturated esters are dimethyl maleate, diethyl fumarate, diethyl maleate, diethylchlormaleate, diisopropyl fumarate, di-n-propyl maleate, diethyl itaconate, diethyl mesaconate, diethyl citraconate, triethyl aconitate, dibutyl maleate, dibutyl fumarate, diamyl maleates, diamyl fumarates, the dihexyl and dicyclohexyl esters of fumaric and maleic acids, the di-dodecyl esters of maleic and fumaric acids, and dimethyl fumarate.  Mixed esters such as methyl ethyl fumarate and methyl n-propyl fumarate and mixtures of the above esters may also be used.  Specified catalysts are the acidic peroxides (benzoyl peroxide), the fatty oil acid peroxides, the allyl peroxides, the terpene peroxides, soluble cobalt salts, the aromatic sulphonic acids and Friedel-Craft catalysts.  Polymerization inhibitors such as hydroquinone, benzaldehyde, resorcinol, tannin, formaldehyde, symmetrical a ,b  - naphthyl - p - phenylene diamine, ascorbic acid and isoascorbic acid may be present as may also fillers such as wood flour, paper pulp, clay, glass filaments, mica, cotton flock, abrasives, silica and asbestos and pigments and dyes.  The resins may be mixed with shellac, cellulose esters and ethers, phenolic resins, alkyd resins, ester gum, melamine - formaldehyde and urea - formaldehyde.  The copolymerization is preferably carried out in the absence of air, e.g. in an inert atmosphere of carbon dioxide or nitrogen.  Specifications 540,168 and 540,169 are referred to.
Patent GB-809326-A (GB)
Title: Improvements in or relating to balanced screw extruders
IPC: B29C48/09
Filed: 1954-05-20
Abstract: 809,326. Coating cores by extrusion. HENLEY'S TELEGRAPH WORKS CO. Ltd., W. T., and GRIFFITHS, F. T. May 19, 1955 [May 20, 1954], No. 14884/54. Class 87(2). Apparatus for extruding three streams of plastic material, which may be of different colours, onto a cable, rod or tube, comprises two balanced screws 11, 30 each formed with two opposed threads 12, 13 and 31, 32. The threads are each associated with a feeding hopper and the depth or pitch of those on the screw 30 is such that this screw delivers to the (common) extrusion head a quantity of material equal to that delivered by either half of the screw 11. The head 22 is provided with septa 29. It may be rotated. Specification 808,415 is referred to.