baber/WOPTO huggingface dataset:
Patent GB-552125-A (GB)
Title: Improvements in or relating to the manufacture of sulphur dioxide
IPC: C01B17/54
Filed: 1941-09-19
Abstract: 552,125. Sulphur burners. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). Sept. 19, 1941, No. 12043. [Class 51 (ii)] In the manufacture of sulphur dioxide by vaporization of molten sulphur and combustion of the sulphur vapour, high temperature fluent sulphur is passed continuously through a vaporization zone where it is partly vaporized and the remainder flows into a pit where impurities are removed and is afterwards returned to the vaporization zone. Figs. 1 and 3 show a sulphur burner comprising a vaporization zone 1 and a combustion zone 2. Sulphur is fed through an opening 5 on to an inclined hearth 6 where it is vaporized and the vapours are burnt by air admitted through openings 18, 18a. High temperature fluent sulphur flows through a conduit 10 into a pit 11 where impurities are removed by being raked up the inclined wall 19 into a sludge box 20. The purified sulphur is returned by a pump 12 to the upper end of the hearth through a pipe 13. A float 17 controls a variable speed device (not shown) of mechanism for feeding raw sulphur through the opening 15. Air is admitted to the sludge box through ports 36 for combustion of any sulphur vapour, the gases produced being led through the channel 37 to the hearth. Air is also admitted through an opening 39 in a door 38 at the end of the channel 37. In a modification one or more inclined baffle plates may be arranged at the upper end of the hearth, raw sulphur being fed to the hearth at the upper side of the baffle or baffles while the high temperature fluent sulphur from the pit is delivered below the baffle or baffles. Fig. 7 shows a burner in which the high temperature fluent sulphur is returned to a melting pit 45 where it is mixed with raw sulphur from a feeding device 46. The high temperature fluent sulphur flows through an opening 48 on to the hearth 47. Sufficient high temperature sulphur must be recirculated to maintain the sulphur in the pit 45 at a high temperature fluent state.
Patent GB-907055-A (GB)
Title: Improvements in or relating to mine roof supports
IPC: E21D11/22
Filed: 1960-04-05
Abstract: 907,055. Mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. April 5, 1960 [April 24, 1959], No. 12073/60. Class 20 (2). Mine roof supports consisting of arch or ring segments 1<SP>1</SP>, 1<SP>11</SP> of I-shaped cross-section are connected together end-to-end by wedges 6 acting on clamping elements 4, 4<SP>1</SP> inserted through registering apertures in the segments and opposed fishplates 2<SP>1</SP>, 21<SP>1</SP>, respectively. The members 4, 4<SP>1</SP> are provided with guide lugs 5 whilst the wedges 6 are provided with stops 7 and guides 8.
Patent GB-194588-A (GB)
Title: Improvements in bucket or float steam traps
IPC: F16T1/26
Filed: 1922-04-29
Abstract: 194,588. Cleland, J., and Stewart, J. C. April 29, 1922. Steam-traps.-A bucket or float steam-trap is provided with an air valve in the form of a cage B containing a loose ball A removable without dismantling the trap, the cage being placed in and across the bore of the water discharge passage E and screwed or otherwise secured to the trap lid so that its bottom end makes a steam tight joint in the wall between the internal steam space of the trap and the water discharge passage.
Patent GB-232792-A (GB)
Title: Improvements in or relating to comparison devices for microscopic investigation
IPC: G03B21/10
Filed: 1924-05-16
Abstract: 232,792. Vickers, Ltd., and Smith, R. L. May 16, 1924. Microscopes; optical-projection apparatus. - Comparison devices to enable the microstructure of a specimen to be compared with photo-micrographs of standard specimens comprise a casing A supporting a microscope C illuminating apparatus E, photo-micrographs H, and a screen G upon which may be projected an enlarged image of the specimen on the stage of the microscope. The casing A is divided by a partition a upon which are mounted rustless steel reflectors F, K and a vertical partition a<1>. The microscope C is inserted in a steel block B supporting a tripod stage D, and the specimen is illuminated from the lamp E by a condenser e, a water trough e<1> and reflectors e<1>, e, the enlarged image being projected by the eye-piece c<1> and the reflector F on to a screen G alongside a photo-micrograph H of a standard specimen. The latter is also illuminated by the lamp E through an iris diaphragm h and a reflector K. The diaphragm enables the illumination to be adjusted so that both image and transparency are viewed with light of the same intensity. Specification 232,793 is referred to.
Patent GB-632234-A (GB)
Title: Method of grinding engine cylinder bores
IPC: B24B1/00
Filed: 1947-05-05
Abstract: 632,234. Grinding engine cylinder bores. JOHANSSON, K. G., and NILSSON, T. D. May 5, 1947, No. 12107. Convention date, Aug. 22, 1946. [Class 60] [Also in Group XXVI] The cylinder bore of an internal-combustion engine or other reciprocating engine is ground cylindrical while the two ends of the cylinder are maintained at the same difference of temperature as exists when the cylinder is under working conditions of temperature. When the cylinder is cold, the bore will therefore taper towards the explosion end. Alternatively, the cylinder bore is ground cylindrical while the two ends of the cylinder are maintained at a difference of temperature greater than that existing when the cylinder is under working conditions of temperature whereby when the cylinder is under working conditions of temperature, and before wear has taken place, the cylinder bore at the explosion end will be smaller than that at the crank-shaft end. The temperature difference between the two ends during grinding is caused by heating the explosion end of the cylinder, as e.g. by induction heating or by a heated metal ring ; alternatively, the crank-shaft end of the cylinder may be cooled.
Patent GB-1458896-A (GB)
Title: Plastics sheathed optical fibre
IPC: G02B6/38
Filed: 1974-03-19
Abstract: 1458896 Light guides STANDARD TELEPHONES & CABLES Ltd 19 March 1974 12108/74 Heading G2J  An optical fibre 1 sheathed in plastic 2 is terminated by removing the sheath from its end before or after passing the fibre through a ferrule 3 and sealing the fibre in the ferrule so that its end is coaxial with the ferrule, by means of a plastics medium 5, e.g. epoxy or polyester resin. The end of the fibre is located in the ferrule by means of a jig, see Fig. 2 (not shown). The end of the fibre protruding from the ferrule may be welded to an optical fibre taper (40), Figs. 4 to 6 (not shown) which fills the end of the ferrule.
Patent GB-393739-A (GB)
Title: Improvements in or relating to the manufacture of beverages and beverage materials
IPC: A23L2/52
Filed: 1932-04-27
Abstract: In making fruit juice beverages, syrups, and concentrates, buffering materials in amount of not less than 1 part of available buffer to 110 parts of acid is incorporated with the fruit juice, either concentrated or not and with or without sugar.  Thus, to lemon or lime juice may be added an alkali metal salt of a fruit acid, e.g. sodium citrate, or part of the citric acid in the juice may be converted to citrate by the addition of sodium hydroxide or sodium carbonate, or a buffering juice such as orange juice may be added in the required amount.  The pH value of the beverage, after removal of carbon dioxide, if any, lies between about 2.9 and 3.15.  A preservative such as sodium benzoate is added in small amount. Specification 7162/88, [Class 14, Beverages], is referred to.
Patent GB-665455-A (GB)
Title: Improvements in or relating to water treating compositions
IPC: C02F5/12
Filed: 1948-05-04
Abstract: A composition for treating water comprises a substantially homogenous mixture of (a) 80-96 per cent by weight of a watersoluble molecularly-dehydrated alkali metal phosphate having a ratio of alkali metal oxide to P2O5 of from 1.0 to 1.3;(b) [a] 19.98-2 per cent by weight of an alkali metal carbonate, bicarbonate or percarbonate or a mixture thereof and (c) 0.01-2 per cent by weight of an amine of the formula R1-NH-R2 in which R1 is hydrogen or an aliphatic or alicyclic hydrocarbon radical and R2 is an aliphatic or alicyclic hydrocarbon radical, at least one of the radicals containing not less than 6 nor more than 10 carbon atoms. Examples of amines are hexylamine, heptylamine, octylamine, decylamine, cyclohexylamine and dicyclohexylamine, of which p  heptylamine is preferred.  The percentage of phosphate in the composition is preferably not less than 88 per cent and the percentage of carbonate or the like is preferably from 10 per cent to 3.98 per cent.  In one example a commercial sodium hexametaphosphate product is mixed with 6 per cent by weight of sodium carbonate and 0.01 per cent by weight of heptylamine is blended with the resulting mixture.  In another example sodium septaphosphate (Na9P7O22) is mixed with 6 per cent of sodium carbonate and 1 per cent of heptylamine is blended with the mixture.  When the composition contains an alkali metal carbonate, bicarbonate or a mixture thereof the ingredients of the composition must be so proportioned as to yield a pH in 1 per cent aqueous solution of 6.7 to 8.0, preferably 7.8.  Other preferred types of amines include: secondary alkylamines in which each alkyl group has from 6 to 10 carbon atoms and alicyclic secondary amines in which each alicyclic group has from 6 to 10 carbon atoms.  Additional alkalinity-adjusting agents may be added to the composition, such as caustic soda, sodium sulphate, bisulphate or bisulphite, sodium metasilicate, trisodium orthophosphates, sodium pyrophosphates such as tetrasodium pyrophosphate and sodium acid pyrophosphate, sodium polyphosphates having a Na2O/P2O5 molecular ratio above 1.3 and mixtures of these, and also the corresponding potassium salts.  The particle size of the main phosphate part of the composition should be not coarser than 50 (preferably 100) mesh.
Patent GB-645252-A (GB)
Title: Improvements in and relating to means for the detection and quantitative determination of combustible gas or vapour in an atmosphere
IPC: G01N25/46
Filed: 1946-04-23
Abstract: <PICT:0645252/III/1> Means for detecting a combustible gas in an oxygen-containing atmosphere comprises a differential thermometer for measuring the heat generated by burning said gas in said atmosphere by a catalytic agent having two separate conduits whereby the atmosphere is divided into two substantially identical streams, one conduit containing one part of the differential thermometer embedded in the catalytic material whilst the other conduit contains the other part of the differential thermometer embedded in inactive material, the specific heat and heat conductivity of both materials being substantially the same.  In the construction shown, a U-tube 8, 9 is held in a flue 19 by diaphragms 27, a partition 20 dividing the flue into two equal portions.  A spirally-grooved wall 21 receives liquid from a boiler 23, and the presence of the grooves ensures that the flue, and thereby the active, 18, and inactive, 17, materials, is uniformly heated.  A condenser 26 is provided.  An electric circuit is completed when the mercury rises to a predetermined value in the limb 8 and an alarm bell is rung.  This limb has a chart giving a direct reading of the amount of combustible gas present.  In each case the inactive and active materials must offer the same resistance to air, and have similar heat conductances and specific heats.  In a modification, a thermo-couple is used and a further modification utilizes a mercury bulb thermometer packed in the catalyst-no inactive component being present.  A further modification, designed to operate at room temperatures (Fig. 1, not shown) has an inlet divided into two similar conduits-the active material being in one, and the inactive in the other-and the atmosphere may be drawn through the apparatus by a pump.  Active materials specified are a mixture of manganese dioxide, copper oxide and silver oxide, a mixture of iodine pentoxide and sulphuric acid on a porous carrier, cupric oxide, silver oxide or cobaltic oxide; whilst inactive materials are a mixture of manganese dioxide and copper oxide, sulphuric acid in a carrier, magnesium silicates or alumina.
Patent GB-163007-A (GB)
Title: System of elastic suspension or connection by the aid of springs
IPC: B61F5/06
Filed: 1921-04-28
Abstract: 163,007. Broussouse, F. L., and Leboucher, P. J. May 8, 1920, [Convention date]. Helical and volute springs.-To permit a mass. suspended by the aid of springs to remain as immovable as possible, a spring system is utilized comprising a main spring of great flexibility but without friction, in combination with oppositelyacting damping-springs possessing varying flexibility. Thus in a railway wagon, the spring is supported by two such systems c, d, each comprising a principal coiled spring e, and two oppositely-acting volute or other suitable springs f, g.
Patent GB-876658-A (GB)
Title: Improvements in and relating to pipes for conveying liquids at high temperature
IPC: F16L59/147
Filed: 1960-04-06
Abstract: 876,658. Insulating pipes. HUET, A. April 6, 1960 [April 7, 1959], No. 12291/60. Class 99(2). In a piping system for fluids at high temperatures and comprising two metallic, spaced apart coaxial tubes, the inner tube is provided externally with radially extending members the extremities of which are spaced from the inner wall of the outer tube by a distance dependent on the degree of expansion of the inner tube and of the radial members at the working temperature, heat insulation material being disposed between the tubes. As shown, discs i mounted on the tube a, or projections k integral therewith, having heat insulating material h therebetween, come into contact with tube on expansion. Alternatively, the projections k are fitted into rings m held by sleeves n and constituting the outer pipe ; an additional sleeve o can be provided in the spaces between the sleeves n.
Patent GB-423146-A (GB)
Title: Improvements in and connected with scaffolding and similar light structural work
IPC: E04G7/24
Filed: 1934-04-24
Abstract: 423,146. Toy construction sets. BENNETTS, J. H., Carisbrooke, The Grove, Finchley, London. April 24, 1934, No. 12317. [Class 132 (iii)] [See also Group X] A coupling unit for the structural sections of light structures, including toys and the like, comprises a sleeve having one or more laterally extending wings, the sleeve consisting of hinged or pivoted jaw parts of which at least one is formed integral with a wing or with a component part of a wing. The units are mounted on the structural sections by means of the sleeves and are interconnected by bolts or the like passing through the wings. In one construction, Fig. 1, the unit comprises three wings 10, 11, 12, of which the wings 10, 11 are bent from a single piece of sheet metal. The intermediate wing 12 consists of two plates 14, 15, which are hingedly mounted on the wings 10, 11 respectively and which are normally bolted together by bolts 19. The sleeve of the unit is constituted by a channel 13 between the wings 10, 11, and by curved portions 16 of the plates 14, 15. In a modification, the unit comprises two wings 26, Fig. 4, hinged together at 27 and provided with curved portions 25 which together form the sleeve. The clamping of the unit to a structural section is effected by bolts 29. Other modifications of multi-wing units are also described. The unit may have one wing only and in the construction shown in Fig. 1 this wing 36 is formed of two plates which have curved portions 40 forming the sleeve and which are hinged together. The plates of the wing are held together by bolts. In a modification, Fig. 10, a subsidiary coupling is mounted on one of the plates 53 of the wing. This coupling consists of two channelled straps 54 having oppositely directed lugs 56 which pass through a rectangular slot 57 in the plate. The straps are clamped to a structural element by a bolt 55. Other modifications of singlewing units are also described. Specification 409,318, [Group X], is referred to.
Patent GB-627979-A (GB)
Title: Earth induction system
IPC: G01C17/28
Filed: 1946-04-25
Abstract: 627,979. Flux valve compasses. BENDIX AVIATION CORPORATION. April 25, 1946, No. 12511. Convention date, April 18, 1945. Addition to 627,978. [Class 37] [Also in Group XXXVIII] The invention of the parent Specification for eliminating the vertical component of the earth's field from the out. put of a flux valve compass is now modi. fied by the provision of two such flux valve elements instead of one, each element consisting of three mutually perpendicular flux valves, situated in the vertical, transverse and fore-and-aft directions respectively. As shown, the outputs of each of the limbs of the two elements are inductively coupled to the field windings of a transformer 136 controlling an indicator 16 by variable transformers 76, 78, and 92, 94, the rotors of which are carried on the bank and pitch axes respectively of an artificial horizon gyroscope. As the craft pitches the effect of the horizontal component of the earth's field on the fore-and-aft limbs 18 and 40 is reduced and the vertical components increased. In the vertical limbs 22 and 44 the output due to the horizontal component increases, that due to the vertical component decreases. Fore-and-aft limb 18 feeds the primary of variable transformer 92 which is normally inductively coupled to the rotor on the bank axis. Limb 40 feeds one of the primaries of transformer 94 with normally zero coupling with the rotor. Vertical limb 22 supplies one of the primaries of transformer 78 normally coupled to rotor 74 on the bank axis and from there through a normally zero inductive coupling to a rotor 88 of transformer 92. Vertical limb 44 feeds primary 100 normally coupled to rotor 90 on the pitch axis. As the craft pitches the alteration of the inductive coupling with the rotors mounted on the pitch axis balances out the output due to the vertical component of the earth's field taken from rotors 72 and 74 so that the signals passed to the primaries of a further variable transformer 128 are dependent only on the heading of the craft. The output of the secondary is amplified and used to drive an induction motor which repositions the secondary so that its output is zero, and drives an indicator. The operation is similar for the elimination of vertical components which appear in the transverse arms 20 and 42 when the aircraft banks. Specification 592,394 is referred to.
Patent GB-768143-A (GB)
Title: A cream tablet and a process for manufacturing same
IPC: A23C13/12
Filed: 1954-04-30
Abstract: Tablets or pills which disintegrate and dissolve readily in coffee and tea contain 30-60 per cent of butter fat, 6-12 per cent of milk protein and at least 20 per cent of lactose.  The preferred proportions are 45 per cent butter fat, 9 per cent milk protein and 41 per cent lactose.  The milk protein comprises casein, lactalbumin and lactoglobulin.  The tablets or pills may be made from a mixture of lactose and spray dried milk powder or from a mixture of lactose, a powder obtained by drying cream of at least .20 per cent fat content and a powder obtained by drying fat-free milk.  Sweetening materials other than lactose may also be present.
Patent GB-1220578-A (GB)
Title: Stabilizing device for an articulated vehicle
Inventor: PEARSON STEPHEN HASWELL
IPC: B60D1/32
Filed: 1967-03-17
Abstract: 1,220,578. Anti jack-knifing apparatus. S. H. PEARSON. 9 April, 1968 [17 March, 1967], No. 12557/67. Heading B7T. [Also in Division F2] An hydraulic stabilizer for connection between the towing and towed members of an articulated vehicle so as to prevent jack-knifing, consists of a rotary vane or piston-and-cylinder unit in which flow of fluid from one chamber to another is controlled by two parallel sets of valves. The first valve set keeps a connection between the chambers normally open but closes it when the vehicle brakes are applied and the second set allows flow between the chambers at all times, but only in a direction from the larger volume chamber to the smaller-both chambers being of equal volume in the equilibrium position. The chambers may be the respective cylinders of two piston-cylinder units whose pistons are interconnected, the cylinder bodies mounted on one member of the articulated vehicle and the pistons connected to the other. As shown however the two chambers A and B are defined by a fixed partition 2 and a rotary vane 3 in a housing 1, the housing being for connection to one of the vehicle members and the shaft 4 of the rotary vane to the other. The above mentioned valve sets consist respectively of valve 5 and valves 6 to 9. They may be mounted externally of the housing 1 as in Fig. 1 or internally. Fig. 2 (not shown) depicts a suitable structure of valve 5 for internal fitting. The valves operate as follows: valve 5 is normally open but control means (not shown) close it when the vehicle brakes are applied; valve 6 is linked to vane 3 to open whenever the vane moves clockwise from the mean poistion shown and valve 8 is similarly linked to open on anticlockwise movement; valves 7 and 9 are oneway valves allowing flow only in the directions shown. Their combined effect is that, with the brakes off, the vane 3 can rotate freely in both directions, but as soon as the brakes are applied it cannot swing further away from its mean position but can move freely toward the mean position, and so will tend to be restored to that position.
Patent GB-431893-A (GB)
Title: Improvements in, or relating to, lids or covers for lemonade and other jugs
IPC: A47J36/08
Filed: 1934-04-26
Abstract: 431,893. Strainer covers for jugs &c. GRINSELL & SONS, Ltd., J., and GRINSELL, J. R. H., Victoria Works, Tower Street, Birming- ham. April 26, 1934, No. 12560. [Class 66] The strainer c of a strainer cover for jugs &c., is formed of spring metal and cooperates with deformable depending flexible metal tongues d to engage the interior of the mouth of the vessel.
Patent GB-474251-A (GB)
Title: Improvements in and relating to collapsible tubes
IPC: B65D35/16
Filed: 1936-05-04
Abstract: 474,251. Collapsable tubes. VENESTA, Ltd., and WEBSTER, G. C. May 4, 1936, No. 12568. [Class 66] Collapsable tubes consist of separately formed inner and outer portions a, b, composed of different metals, the inner part being of tin, silver, or other metal suitable to resist the corrosion action of the contents and being thinner than the outer portion. The nozzle al is formed integral with the inner part, and a flange a<2> is bent down over the shoulder of the outer portion to secure the parts together. The exterior of the outer tube may be coated with tin or other metal, and a layer of protective insulating or adhesive material may be disposed between the tubes.
Patent GB-1012582-A (GB)
Title: Polyamide compositions of improved temperature stability and methods of preparing them
IPC: C08K5/00
Filed: 1964-03-25
Abstract: A method of improving the temperature stability of a polyamide comprises incorporating therein from 0.001 to 0.3% by weight of a metal complex of a phthalocyanine optionally together with a reducing agent.  The additives may be incorporated during the preparation of the polyamides.  Specified polyamides are poly - 6 - aminocaproic acid, poly - e  - caprolactam and polyhexamethylene adipamide. Specified metal complexes are those of copper, nickel, cobalt, zinc and magnesium.  Specified reducing agents are alkali metal iodides and bromides, hydrazine and hydroxylamine.  Examples (1) to (3) describe the polymerization of e -caprolactam in the presence of benzoic acid and (1) and (2) copper phthalocyanine, and (3) nickel phthalocyanine.  Example (4) describes the polymerization of hexamethylene diammonium adipate in the presence of acetic acid and copper phthalocyanine.