baber/WOPTO huggingface dataset:
Patent GB-851494-A (GB)
Title: Improvements in the production of phthalocyanine dyestuffs
IPC: C09B67/00
Filed: 1957-09-19
Abstract: Nitrocellulose and alkyd resin lacquers are described which contain a pigment mixture comprising a phthalocyanine pigment or mixture of such pigments and up to 25% by weight of vanadium phthalocyanine.  A lacquer is described containing a resin obtained by condensing methyl-cyclohexanone with cyclohexanone in the presence of alcoholic sodium hydroxide, a mixture of copper and vanadium phthalocyanines pyroxylin, dibutyl phthalate, butyl acetate xylene and acetaldehyde dimethyl acetal in methanol. Specification 457,526 is referred to.ALSO:Phthalocyanine dyestuff preparations are made by intimately mixing a phthalocyanine pigment dyestuff or a mixture of such dyestuffs with up to 25% by weight (with reference to the main pigment used) of vanadium phthalocyanine.  The mixing may be effected by grinding or by dissolution in and precipitation from concentrated sulphuric acid.  Other phthalocyanine stabilizers may also be present.  Specification 457,526 is referred to.
Patent GB-244734-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M1/16
Filed: 1925-11-23
Abstract: 244,734. Joly, G. F. C. Dec. 16, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors.-To clear the fuel nozzle c of foreign matter, a pipe g is fitted between the fuel conduit b and the induction passage f on the engine side of the by-pass d. At the junction of the pipe g and conduit b is fitted a three-way valve h or its equivalent by which the nozzle c may be cut off from the conduit b and placed in communication with the pipe g, Fig. 2, so that upon closing the throttle valve e, a strong back suction through the nozzle is produced which draws grit &c. away from the spraying orifice. If the valve be turned to the position shown in Fig. 3, an additional supply of fuel for starting is available.
Patent GB-900403-A (GB)
Title: Catalyst for production of bulk and solution polymerisates
IPC: C08F283/01
Filed: 1958-09-15
Abstract: Bulk and solution polymerization reactions are effected by use as catalyst of a solution of hydrogen peroxide in an inert organic solvent such as an ester of phosphoric or of phthalic acid.  The H2O2 content of the catalyst is at least 10% wt. and the catalyst may contain additionally an organic peroxide such as methylethylketone, cyclohexanone, hydroxyheptyl, ditert-butyl and lauroyl peroxides, tert-butyl and cumene hydroperoxides, dibenzal diperoxide, tert-butyl perbenzoate and 2:2-bis-(tert-butyl peroxide)-butane.  Catalyst components other than H2O2 in the Examples are:-(1) Et3PO4, (2)o-C6H4(CO2Me)2, (3) o-C6H4 (CO2CH2CH2OMe)2, (4) CH3 CO2CH2CH2OEt, (5) as in (1) + tert-butyl peroxide and hydroperoxide + Co octoate, and (6) as in (3) + methylethylketone peroxide + Co octoate.ALSO:Bulk and solution polymerization reactions, e.g. of vinyl and allyl derivatives and esters of maleic, fumaric and itaconic acids are effected by use as catalyst of a solution of hydrogen peroxide in an inert organic solvent such as an ester of phosphoric or of phthalic acid.  The H2O2 content of the catalyst is at least 10 wt. per cent and the catalyst may contain additionally an organic peroxide such as methylethylketone, cyclohexanone, hydroxyheptyl, di-tert.-butyl and lauroyl peroxides, tert.-butyl and cumene hydroperoxides, dibenzal diperoxide, tert.-butyl perbenzoate and 2:2-bis-(tert.-butyl peroxide)-butane.  Catalyst components other than H2O2 in the examples are:- (1) Et3PO4, (2) o-C6H4(CO2Me)2, (3) o-C6H4(CO2CH2CH2OMe)2, (4) CH3CO2CH2CH2OEt, (5) as in (1)+tert.-butyl peroxide and hydroperoxide+Co octoate, and (6) as in (3)+methylethylketone peroxide+Co octoate.  The catalysts of Examples (5) and (6) were used to copolymerize styrene with the condensation product of phthalic acid (2 mol.), maleic acid (1 mol.) and propylene glycol (3 mol.).
Patent GB-1398382-A (GB)
Title: Tugs and towing vessels
IPC: B63H25/38
Filed: 1971-06-23
Abstract: 1398382 Tugs HYDROCONIC Ltd 21 June 1972 [23 June 1971] 29516/71 Headings B7A B7S and B7V A water tractor having forward puller propellers which provide vectorable thrust, is provided with a stern rudder (23) which is pivoted on the trailing edge of a skeg (22).
Patent GB-832423-A (GB)
Title: Process for the analysis of gaseous hydrocarbons
IPC: G01N30/06
Filed: 1957-09-19
Abstract: Gaseous mixtures of unsaturated hydrocarbons either alone or in admixture with saturated hydrocarbons are hydrogenated and then gas-chromatographed using hydrogen as a carrier gas to analyse the content of the mixture.  The gas mixtures which contain saturated hydrocarbons can be treated with an absorbent to remove the unsaturated hydrocarbons and then chromatographed in order to arrive at the final result but in certain specified cases the absorption step is unnecessary.  The hydrocarbons are generally separated as methane, ethane, propylene, isobutane, n-butane, isopentane, n-pentane and cyclopentane, n-hexane, 2-methyl pentane, 3-methyl pentane, 2 : 2-dimethyl butane, 2 : 3-dimethyl butane.  A hydrogenation catalyst comprises kieselguhr with a grain size of 0.3 to 0.4 mm. on which platinum has been precipitated by impregnating the kieselguhr with 1/10 molar platinum tetrachloride solution and then reducing the tetrachloride with hydrazine hydrate to give a platinum content of 0.6%. Alternatively a palladium compound such as the palladium dichloride may be used as may weaker solutions of the noble metals.  An olefine absorbent comprises kieselguhr which has been impregnated with 50% by weight of a solution of 5% silver sulphate in concentrated sulphuric acid.  As an alternative to the kieselguhr an aluminium oxide containing kieselguhr containing about 72% silica, 10% alumina, 1% titania, 10% ferric oxide, 2.4% calcium oxide, 1.5% magnesia, 3.7% water and 1.5% sodium oxide is used.ALSO:Gaseous mixtures of unsaturated hydrocarbons either alone or in admixture with saturated hydrocarbons are hydrogenated and then gas chromatographed using hydrogen as a carrier gas to analyse the content of the mixture.  The gas mixtures which contain saturated hydrocarbons can be treated with an absorbent to remove the unsaturated hydrocarbons and then chromatographed in order to arrive at the final result, but in certain specified cases the absorption step is unnecessary.  The hydrocarbons are generally separated as methane, ethane, propylene, isobutane, n-butane, isopentane, n-pentane and cyclopentane, n-hexane, 2-methyl pentane, 3-methyl pentane, 2:2-dimethyl butane, 2:3-dimethyl butane.  A hydrogenation catalyst comprises kieselguhr with a grain size of 0.3 to 0.4 mm. on which platinum has been precipitated by impregnating the kieselguhr with 1/10 molar platinum tetrachloride solution and then reducing the tetrachloride with hydrazine hydrate to give a platinum content of 0.6%. Alternatively, a palladium compound such as the palladium dichloride may be used as may weaker solutions of the noble metals. As an alternative to the kieselguhr, an aluminium oxide containing kieselguhr containing about 72% silica, 10% alumina, 1% titania, 10% ferric oxide, 2.4% calcium oxide, 1.5% magnesia, 3.7% water and 1.5% sodium oxide is used.
Patent GB-761666-A (GB)
Title: Improvements in and relating to washers
IPC: F16B43/00
Filed: 1953-10-27
Abstract: 761,666. Bolting; washers. DOUGIER, P.E. Oct. 27, 1953, No. 29642/53. Class 89 (1). A washer comprises a base 1, Fig. 2, with hole 3 and sides 4, Fig. 5, bent-up from the base over part of its periphery, the free edges 4a of the sides being bent inwards and downwards towards the base. The washer is used for fixing a wire loop F, which rests on the edges 4a, by means of a screw passing through hole 3 and receiving a nut &c. which, when tightened, causes the sides to move outwards and the edges downwards, thus urging the loop towards the centre of the washer. A plain washer may be placed on top of the loop, or the loop may be . sandwiched between the edges of two washers according to the invention. In a modification, the washer is rectangular, has opposed sides 4, Fig. 13, and edges 4a, and may be used for fixing two wires of equal or unequal diameters, which are positioned one along each edge.
Patent GB-307716-A (GB)
Title: Improvements in the preparation of photosensitive photographic emulsions
IPC: G03C1/725
Filed: 1927-11-07
Abstract: 307,716. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 7, 1927. Emulsion coatings.-The sensitiveness of emulsions containing water-insoluble mercuric oxalate or its complex ammine compounds is increased by generating in or adding thereto, or to the ingredients employed for the preparation thereof, a sensitizing agent such as an inorganic sensitizing metal salt, for example a salt of one of the heavy metals, mercury, silver, thallium, gold, or platinum, and/or an organic sensitizing dyestuff, for example eosine or erythrosine. Tannin or a similar toning agent may be added to the emulsion, or the prints produced may be toned like silver prints, for example with uranium nitrate. A printing-out emulsion is produced by including, for example 1 to 3 per cent of mercuric iodide, and the emulsion may further be bathed before or after coating in a 1 per cent silver nitrate solution. A developing emulsion is produced for example by including 0.5 to 2 per cent of mercuric iodide and 0.05-0.2 per cent of silver iodide, development being effected with metol hydroquinone the action of which is arrested bv immersion in a bath containing acetic acid and potassium metabisulphite, and fixing being performed with alkaline thiosulphate. Examples are described of the preparation of various emulsions employing gelatin as vehicle, including an emulsion which prints out feebly and is developed to full intensity.
Patent GB-352340-A (GB)
IPC: F23M5/08
Filed: 1930-10-04
Abstract: 352,340. Pulverulent-fuel furnaces. STUG KOHLENSTAUBFEUERUNG PATENTVERWERTUNG GES., Cassel, Germany. Oct. 4, 1930, No. 29753. Convention date, Oct. 9, 1929. [Class 51 (i).] In pulverulent-fuel furnaces, more particularly intended for locomotives, there is arranged below the main arch h a short auxiliary arch i so as to form a passage k for the introduction of secondary air supplied from a channel l fitted with a damper m. The passage k may be divided by vertical partitions n or, as shown in Fig. 3, it may be divided by a horizontal partition into upper and lower passages p, q the passage q being further subdivided by vertical partitions n. An arch e is arranged above the burner d and is provided with secondary air inlets g.
Patent GB-205701-A (GB)
Title: Improvements in door fastenings for safes and the like
IPC: E05B47/00
Filed: 1922-10-31
Abstract: 205,701. Basart, A. R. M. Oct. 31, 1922. Multiple fastenings for doors; electrically operated or controlled fastenings.-The movement of the fastening members for the doors of safes, strong-rooms, and fireproof chests is effected by the expansion and contraction of a rod or rods mounted within the safe, &c. Slidably mounted in brackets 5 on a hinged door 3, Fig. 1, is a rod 4 connected through adjustable cross-pieces 6 and rods 7 to clamping members 8 slidably mounted on the door 3 by bolts 12 and provided with stepped faces 9 adapted to be pressed against correspondingly stepped faces on a frame 2 fitted within the door frame 1. The hollow rod 4 is provided with one or more electrical resistances forming part of a circuit controlled from a suitable position so that when the circuit is closed the rod 4 will be heated and caused to expand, the rods 7 pulling the members 8 inwardly and freeing the door. Fig. 2 shows a similar construction to that shown in Fig. 1 mounted on each leaf of a double door, the inner clamping members 12a being provided with flat faces which are pressed tightly against each other when the rods 4 are cold.
Patent GB-920261-A (GB)
Title: Process and apparatus for agglomerating pulverulent materials and products thereof
IPC: A23G3/02
Filed: 1959-09-01
Abstract: <PICT:0920261/III/1> <PICT:0920261/III/2> Pulverulent material such as ammonium sulphate and sodium hexametaphosphate, is agglomerated by continuously dispersing the material so as to fluidize the particles of the material and form a fluidized bed in which the particles are dispersed and suspended in intimate relationship and make repeated contact with one another, maintaining the material within the confines of the bed while moving the bed over a supporting medium, and subjecting the fluidized particles of at least a part of the moving bed to a condition changing agent, such as the condensation from superheated vapour or vapour-gas mixture, so as to form adhesive agglomerating surfaces on the particles and thereby effect the agglomeration. The preferred procedure is depicted in Fig. 4. Dry pulverulent material from a hopper 10, Fig. 2, is kept in a fluidized state as it moves over 60-400 mesh glass cloth screens 16, 18, 19 and 20 by the circulation of gaseous media as follows: air at room temperature between chambers 26-29 for initiating the fluidization of the material, hot air and superheated steam between chambers 31-33a for agglomeration of the material (as depicted in Fig. 4), hot air between chambers 35-38 to dry the agglomerates and unheated air between chambers 40-43 to cool the dried agglomerates.  Finally the cooled agglomerates are sized on a screen 21, the undersized being collected from a separate shoot 46.  The apparatus is mounted on struts 78 so that a rapid vibratory movement may be imparted to it through a reciprocating arm 82.  Examples are directed to agglomerating the following materials: (1 and 6) mixes suitable for angel food cake consisting of about 32% dried egg albumen and 68% powdered sugar, anhydrous monocalcium phosphate being employed as a pH control agent in Example 1, (2) a mixture of 20% cocoa powder and 80% finely ground sugar, (3) various mixtures of flour and powdered sugar, (4) powdered sugar alone, (5) ground ammonium sulphate, and (7) ground sodium hexametaphosphate.  The agglomerates were free flowing and quickly dispersible in cold liquid.  Other materials mentioned are lard flakes and glyceryl monostearate.
Patent GB-975539-A (GB)
Title: Fabrication of incandescent lamps
IPC: H01K3/22
Filed: 1962-08-02
Abstract: 975,539. Electric incandescent lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 2, 1962 [Aug. 9, 1961], No. 29776/62. Heading H1F. A tubular filament lamp having a gas fill at approximately atmospheric pressure is made by forming a pool of liquefied fill gas within the envelope containing the filament and vaporizing the gas while heating the unsealed end of the envelope and sealing this. The tube 1 is first supported in clamps 5 and a stream of fill gas, e.g. argon, is passed into the tube from one end while  the other end is heated to seal the filament support 23 therein. The sealed end is then immersed in a refrigerating bath while the flow of fill gas is continued so that a pool of liquefied gas is formed. The tube is then replaced in clamps 5 and the open end heated, the pool of liquefied gas 21 being allowed to evaporate, if necessary with the assistance of heat. When only a drop of the liquified gas remains, the sealing jaws 6 are closed, sealing the second filament support therein. When argon is used as the fill gas, the refrigerant may be liquid nitrogen although other refrigerants such as liquid helium or neon may be used. Other inert gases or nitrogen may be used as the fill gas and gasified halogen such as iodine may be included. The filament 3 may be of tungsten connected by lead-in wires to small sheets of molybdenum foil in turn attached to lead-in wires 22, 23. Tantalum spacers 4 may be arranged at intervals along the filament to prevent sagging.
Patent GB-280242-A (GB)
Title: Carburettor for combustion engines
IPC: F02M17/28
Filed: 1927-11-07
Abstract: 280,242. Saarinen, O. A. Nov. 5, 1926, [Convention date]. Carburetting - apparatus.-The fuel is fed to, and evaporated from the surface of, a block 2 of porous material, such as gypsum, asbestos, pumice stone, brick or coal, provided with air passages 6, the extent of the evaporating surface and the number of air passages 6 in action being controlled by a slide 7. The level 4 of the fuel in the block may be controlled by adjusting the level in the float chamber supplying the fuel inlet conduit 5. In a modification, Fig. 4, in which the block 2 is provided with a square evaporating surface, the air passages 6, which may have parallel or diverging sides, extend across the square in the direction of motion of the slide 7. the block and air passages being provided respectively with transverse partitions 10, 9. In a further modification, in which the block is cylindrical and the air passages sector shaped in cross-section, both the block and the air passages are provided with concentric partitions, and the slide 7 may be replaced by an iris diaphragm.
Patent GB-1141069-A (GB)
Title: Improvements in or relating to polyamide yarn packages with tapered end-portions and their production
Inventor: PHILLIPS DAVID MEREDITH
IPC: D01H1/30
Filed: 1966-07-04
Abstract: 1,141,069. Yarn packages. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 June,- 1967 [4 July, 1966], No. 29829/66. Heading B8M. [Also in Division D1] A polyamide yarn package consists of successive, parallel layers of coils of yarn wound on a former in a build having tapered end-portions, the hardness of the package decreasing from inside to outside thereof, and being substantially uniform as measured along the axial lengths of any of said layers, the mean value at the outside of a full package being not greater than 65 degrees on the Shore 'A' scale and at one third the total weight being not greater than 80 degrees on the said scale. The package is built up of straight helices in a long-to-short build. The yarn on withdrawal from the package has a low residual shrinkage and a low propensity to barrÚ. A process for producing the polyamide yarn package comprises drawing an undrawn polyamide yarn, heating to drawn yarn under relaxing conditions, and winding the yarn into a package on a ring-spindle wind-up, the speed of rotation of the traveller being substantially constant throughout the winding and the traverse stroke decreasing gradually in length from inside to the outside of the package. The traveller speed is maintained constant by a programmed reduction in the speed of rotation of the spindle. The yarn is preferably relaxed by contact with a hot plate. The traveller ring is disposed in a plane within ¢ degree of the perpendicular to the spindle. The residual shrinkage of the yarn on withdrawal from the package is preferably not greater than 8%.
Patent GB-744408-A (GB)
Title: Improvements in or relating to the purification of zinc
Inventor: DERHAM LESLIE JACK
IPC: C22B19/04
Filed: 1952-11-25
Abstract: Zinc containing arsenic and/or antimony is treated in the molten form with a sodium-lead or sodium-zinc alloy and the resulting arsenic- and/or antimony-containing dross is removed. The sodium alloy may first be formed electrolytically.  The Provisional Specification describes also the use of alkali metals or alkaline earth metals or mixtures of these or alloys of any of these metals with lead, which alloys are produced electrolytically.
Patent GB-945482-A (GB)
Title: Improvements in electrical connectors
IPC: H01R4/28
Filed: 1959-09-02
Abstract: 945,482. Two part couplings. G. W. G. SHRUBSALL. Aug. 25, 1960 [Sept. 2, 1959], No. 29950/59. Heading H2E. An electrical connector has a flexible body 1 with one or more bores 2 through it and metal inserts 14, 15 soldered or crimped to wires 10, 11 are retained by projections 3, 4 in each bore and joined electrically by spring 5. The body may be integral or divided transversely into two halves for easy insertion of the spring by either snap in or bayonet type connectors. The compression spring 5 may be replaced by one or more blade springs.
Patent GB-140727-A (GB)
Title: Improvements in compound air compressor
IPC: F04B27/04
Filed: 1919-12-02
Abstract: 140,727. Jones, O. Dec. 2, 1919. Compound piston pumps; pump-actuating mechanism; plant, general arrangement of; heat of compression, absorbing.-A compound aircompressor comprises a series of low and a series of high pressure cylinders arranged axially in line with each other on opposite sides of a driving- shaft carrying eccentrics surrounded by bearing rings; the piston connecting-rods on one side have their ends fixed to the ring; those on the other side have forked ends forming arcuate fingers embracing the corresponding eccentrics and pivoted to the opposite sides of the rings; the cylinders are water-jacketed. As shown, the low and high pressure cylinders 6, 7 are secured to vertical apertured plates 2, 3 on a base-plate 1. The driving-shaft 8 disposed transversely between the sets of cylinders carries eccentrics 13 surrounded by antifriction bearings supporting straps 14. The high-pressure pistons 12 are connected to the straps by rods 16, and the low-pressure pistons 11 by rods 17 having forked arcuate fingers 18 embracing the disks and connected to the straps on the other side. A casing 19 is connected with each low-pressure cylinder, connected with a common manifold 22, and containing inlet and outlet valves 20, 21. A similar valvecasing 23 is provided in connexion with each highpressure cylinder, communicating through inlet and outlet valves 24, 25, with an intake manifold 26 connected with the manifold 22, and an outlet manifold 27. The eccentrics are arranged to operate the first stage compressors in turn and the second stage compressors similarly. The cylinders are provided with jackets 31, 32 through which water is circulated by a pump 35 operated by the shaft 8. 140,764. Vallaeys, A. A. March 21, 1919, [Convention date]. Regulating exhaustion.-Relates to closed dyeing-vats with means for exhausting vapours, pivoted doors being connected to the valve controlling the exhaust. The sides of the vat are closed, and doors C, D at the front and back are pivoted at E, F and are geared to a flap valve I connecting the vat to a chamber H leading to a collector K, kept at reduced pressure, by a head L which reaches up to the axis of the collector to prevent water of condensation from running back. The valve I opens with the doors C, D and vapours' are then drawn in by the collector.
Patent GB-925497-A (GB)
Title: System for lubrication of engine turbochargers
IPC: F01M1/12
Filed: 1961-08-21
Abstract: 925,497. Lubricators &c. CATERPILLAR TRACTOR CO. Aug. 21, 1961 [Sept. 1, 1960], No. 30048/61. Class 12 (3). [Also in Group XXVII] A lubrication system for an internal combustion engine with a turbo-charger wherein lubricant is supplied by an engine-driven pump incorporates means, in addition to the normal lubricating system, whereby lubricant may be initially supplied upon starting the engine directly to the bearings of the turbocharger, said means comprising a by-pass 28 which connects the pump 10 to a control mechanism 30 which in turn is connected by line 18 to the turbo-charger bearings 25 via passages 26. The control mechanism 30 functions in relation with the main lubricant system and comprises a spool 31 which is urged to the right by spring 32. In this position with initial starting of the engine lubricant may flow through the line 28, and passage 33 into an annular space around the spool 31 into passage 34 and thence via line 18 to the turbo-charger. As the pump pressure builds up in the normal system after the engine has been started, said pressure is introduced via cooler 12 and filters 16 into line 35 which connects with the bore of the control mechanism 30 at the end opposite the spring 32. This moves the spool against the spring until passage 33 and communication with the turbo-charger is blocked, and the normal lubricant flow is permitted from line 35 to line 18 and hence to turbo-charger. An annular groove 36 registers with the passage 33 to distribute the pressure equally around the spool.