baber/WOPTO huggingface dataset:
Patent GB-1089880-A (GB)
Title: Recovery of ammonia from gaseous mixtures
IPC: C10K1/08
Filed: 1965-01-15
Abstract: Coke-oven gas containing ammonia is passed is sequence through a condenser, where an aqueous solution of ammonia is obtained, a mixer, where the gas is contacted by sulphuric acid vapour to neutralize ammonia remaining in the gas, and finally through a tower for scrubbing with the ammonia solution.ALSO:Ammonia is recovered from gases by scrubbing with sulphuric acid, and the ammonium sulphate formed is decomposed by (i) heating the ammonium sulphate with ammonium bisulphate yielding ammonia and ammonium bisulphate, (ii) heating the ammonium bisulphate in a melt with an alkali metal sulphate (preferably a mixture of sodium and potassium sulphates) in admixture with the sulphate of another metal, preferably cobalt sulphate, yielding ammonia and metal bisulphate and/or pyrosulphate, (iii) heating the bisulphate and/or pyrosulphate to yield metal sulphate and sulphur oxides, the molten salts produced being returned to the preceding stage.  Stage (i) is preferably conducted at 300-320 DEG  C. and so as to liberate not more than 50% of the ammonia contained in the sulphate, the bisulphate formed being circulated to stage (ii), which is preferably conducted at 390-420 DEG  C. Stage (iii) is preferably conducted at above 700 DEG  C.
Patent GB-138329-A (GB)
Title: Manufacture of glycerol from sugar
IPC: C12P7/20
Filed: 1920-01-21
Abstract: In the manufacture of glycerine by fermentation of sugar in alkaline liquid as described in the parent Specification, the yeast is purified and re-used, for example by washing in water, followed by growth in a dilute acid medium, and gradual neutralization with alkali.
Patent GB-606917-A (GB)
Title: Improvements in or connected with the construction of bicycle frames
IPC: B62K19/30
Filed: 1946-01-22
Abstract: 606,917. Frames. GREAVES, W. W. Jan. 22, 1946, No. 2068. [Class 136 (iii)] A cycle seat - stay bridge a has a cylindrical piece b formed on it with its axis at rightangles to the seat-stay bridge, the ends of the cylinder forming bosses and the cylinder having a hole through the centre of its axis. The cylinder b is of slightly larger diameter than the bridge tube on to which it is brazed. A bolt hole for a caliper brake is drilled longitudinally through the centre of the cylinder and the cylinder is so brazed on to the bridge tube that the bolt hole is at right-angles to the length of the seat stays. Alternatively, the bridge may be made from two sheet-steel pressings welded together, each piece being formed into a semi-circular trough having a cylindrical boss formed to project from the convex side of the trough, its axis being at right-angles to the seat stay bridge. The halves may also be made from one piece of sheet metal.
Patent GB-175259-A (GB)
Title: Improvements in grooved compound tramway rails or the like
IPC: E01B5/10
Filed: 1922-01-24
Abstract: 175,259. Krupp Akt.-Ges., F. Feb. 9, 1921, [Convention date]. Rails, metallic built-up.-A reversible guide rail A with flanges a<1> is secured to the running rail B by blocks C, fish-plates D, and bolts which pass through the fish-plates and rail B underneath the rail A. For use with running rails of differing sections, filling pieces E may be used. The outer faces of the plate D and upper flange a<1> lie in the same plane.
Patent GB-732498-A (GB)
Title: Conditioning of beer in casks
IPC: B67D1/12
Filed: 1953-01-26
Abstract: 732,498. Beer conditioning. BOWNASS, K. A. Dec. 30, 1953 [Jan. 26, 1953], No. 2146/53. Class 49. Beer in a cask from which the beer is dispensed to the customer is kept in good condition by preventing escape of gas liberated from the beer, the top of the cask being connected to a supply of air or gas under pressure. In the top of a full cask of beer (10a) is inserted a spile tap 11 which is closed. The full cask is connected at the tap 11 by a flexible air delivery pipe 15, in which is a non-return valve 14 and a stop valve 16, with an air compresser 13. Connection to the cask is made with the stop valve 16 and the spile tap 11 both closed; on opening these taps to establish communication between the air compressor and the cask, there is no loss of beer gas, the air pressure maintaining the beer gas largely in solution. Beer gas is liberated from solution into the space 12 as the beer is drawn off (10b), and such gas, if insufficient to fill the whole of this space, will form a blanket 17 over the surface of the beer and prevent the air delivered from the compressor from coming into direct contact with the beer. This condition continues until the cask is empty (10c). The non-return valve 14 maintains the pressure in the casks if the compressor is temporarily shut off or the air pressure is temporarily reduced. Clean air is drawn into the compressor, air for the compressor being preferably admitted thereto through a surrounding filter 19.
Patent GB-1292711-A (GB)
Title: A transport container
Inventor: REINDERS GERRIT JAN
IPC: B65D21/04
Filed: 1970-01-16
Abstract: 1292711 Containers G J REINDERS 16 Jan 1970 [16 Jan 1969] 2276/70 Heading B8P An open-topped transport container comprises a base 5 defining a convex floor of the container, the floor being provided with groove portions 6 communicating with drainage apertures 7, 9, at least one pair of mutually opposed side walls 1, 2 widening to become further spaced from one another as they rise from the base 5, the pair of side walls 1, 2 being provided with corrugations 12, 13 extending substantially the full height of each wall of the pair, the corrugations on one of the side walls of the pair being offset relatively to the corrugations on the other of the side walls of the pair in such a manner that crests of the corrugations in said one side wall lie opposite troughs of corrugations in said other side wall, a stacking surface portion 17 at the top of each respective side wall of the pair, each side wall of the pair being provided with a respective extension 11 projecting below the base, a rim portion 18 projecting upwardly from the outer edge of each respective stacking surface portion, and a plurality of bosses 17<SP>11</SP> usptand. ing from the stacking surface portions, the relative spacing between the bosses upstanding from the respective stacking surface portions 17 and the relative spacing between the extension 11 of the respective side walls being such that when an extension of a side wall of an identical further container is in contact with one of the stacking surface portions 17 movement of this extension in a direction towards the other stacking surface portion is resisted. As shown, in which the container is injection moulded in a plastics material, the base 5 and the walls 3, 4 are also corrugated. Stacking projections in the form of studs 11 or as projections of the walls 1, 2 are formed integrally with the base 5. The containers can be stacked with corrugations on wall 2 above corrugations 12 on wall 1 or nested with corrugations 12 and 13 lying opposite one another. A handle opening 16 is formed in the end walls 3, 4. The tops of the walls 1-4 merge into the rim 18 comprising the stacking surface 17 and a bead. Stop ribs 24 projecting from the side walls, determine the depth of penetration of nested containers. Deflector webs are disposed on the side wall corrugations adjacent the bead of the rim 18.
Patent GB-572055-A (GB)
Title: Improvements in cup washers
IPC: F16J15/32
Filed: 1944-02-08
Abstract: 572,055. Piston packing. ANGUS & CO., Ltd., G., and SAKER, P. R. Feb. 8, 1944, No. 2299. Addition to 560,515. [Class 122 (i)] In a rubber double cup washer as claimed in the parent Specification having a rigid base washer b, formed with axial abutments b<1> to limit the degree of clamping on the rubber washer, the rigid base is of metal and perforated at b<2>. Alternatively the rigid base comprises a pair of perforated syntheticresin impregnated fabric discs. In a further form the rigid base comprises discs d and a tubular wad d<1> of synthetic-resin impregnated fabric and the cup washer is formed of rubber impregnated fabric a<1> moulded and vulcanised together. Specifications 544,904 and 566,329 are referred to.
Patent GB-100529-A (GB)
Title: Improvements in Rock Drilling Engines.
IPC: E21B21/00
Filed: 1916-02-16
Abstract: 100,529. Nya Aktiebolaget Atlas. May 25, 1915, [Convention date]. Percussive drills.-In a rock drill of the kind in which water is forced through the bit into the bore-hole, the nozzle 7 is loosely disposed in a recess in the bit-holder, or in a separate holder, and retained therein by a. nut 8 or other means. A perforated rubber or other packing 10 fits against the bit 3, and the upper end thereof is pressed against the walls of a recess 9 in the nozzle by the water pressure acting in a cup-shaped recess 11 in the packing. The water pressure advances the packing as the part bearing on the bit is worn away. The Specification as open to inspection under Sect. 91 (3) (a) states that the cross section of the packing is approximately uniform; this subjectmatter does not appear in the Specification as accepted.
Patent GB-341722-A (GB)
Title: Improvements in jockey pulleys applicable for spinning, doubling and other machines
IPC: D01H1/241
Filed: 1930-01-23
Abstract: 341,722. Pulleys. BURTINSHAW, Ltd., J. and BURTINSHAW, S. 'J. G., Union Street, Ancoats, Manchester. Jan. 23, 1930, No. 2326. Addition to 236,353, [Class 80 (i), Gearing, Belt &c.]. [Class 80 (i).] ] The jockey pulley described in the parent Specification is modified by providing flanges on either side of the rim. A separate rim B spun from the solid or bent round from a strip is used, or alternatively such rim is formed integrally with one side disc A. The parts are welded, soldered, or otherwise fixed together, with or without bending up and with or without spinning over the edges of appropriate parts.
Patent GB-724402-A (GB)
Title: Process for exposing the non-metallic protecting layer of a metal container
IPC: G01N33/32
Filed: 1953-01-28
Abstract: 724,402. Metat-removing processes. STAHLUND WALZWERKE RASSELSTEIN ANDERNACH AKT.-GES. Jan. 28, 1953 [Feb. 8, 1952], No. 2516/53. Class 41. In a process for exposing the non-metallic protecting layer of a metal container, in particular the lacquer layer of a preserve can, the metal wall of the container is completely dissolved away by electrolysis at the place corresponding to the part to be exposed, the metal wall being employed as an electrode. The part of a can not to be dissolved may be protected by immersion in or spraying with laquer or by the application of paraffin wax or by sticking insulating strips thereon. The can may be immersed in an aqueous solution of hydrochloric or sulphuric acid as electrolyte, the metal wall forming one electrode and a counter electrode may be employed which is pointed or spherical and the surface of which is smaller than the surface to be dissolved.
Patent GB-547603-A (GB)
Title: Improvements in relay valves for fluid pressure systems and power-operated brake systems incorporating such valves
IPC: B60T13/24
Filed: 1941-02-28
Abstract: 547,603. Valves ; fluid-pressure brakes. BENDIX AVIATION CORPORATION. Feb. 28, 1941, No. 2720. Convention date, July 25, 1940. [Class 135] [Also in Group XXXIV] A valve device particularly adapted for use as a relay valve in connection with vacuum brakes on a trailer vehicle associated with a tractor vehicle fitted either with compressed air or vacuum brakes comprises a three-way tubular piston valve actuated by a diaphragm and piston alternatively connected to a controlling pressure line, the pressure in which is controlled by a pedal actuated valve on the tractor. In the arrangement shown in the Figures a tubular piston valve 34 controls communication between a conduit 36 leading to the brake cylinder and a suction conduit 38 or an atmospheric vent 40 fitted with an air cleaner 42. The valve is acted on by a light spring 78 and is secured to an actuating diaphragm 28 by a bolt 30 an adjustably spring-loaded actuating piston 46 housed in a chamber 64 has a piston rod 66 adapted to engage the head of the bolt 30. When the trailer vehicle is associated with a tractor vehicle fitted with compressed air brakes as shown in Fig. 2, the chamber 64 is connected by way of control line 235, flexible connector 265 and control line 263 with the conduit 261 connecting the brake cylinder on the tractor with the pedal actuated control valve 255. The chamber 62 on the outer side of the diaphragm is connected by way of pipe 235b and threeway cock 270 to a pipe 233a connecting a suction conduit 233 with the conduit 38. The conduit 233 is connected to the outer end of the brake cylinder and by way of flexible connection 243 with a pipe 241 leading to the engine manifold. The chamber 60 on the other side of the diaphragm is always subject to the pressure in the brake cylinder which pressure is admitted through the hollow valve and a port 48. When the tractor vehicle is fitted with vacuum brakes the flexible connector 265 is transferred to a pipe line 235a and the three-cock is reversed so that the diaphragm-chamber 62 is subject to the pressure controlled by the pedal-controlled valve and the chamber 64 is put out of action.
Patent GB-574756-A (GB)
Title: Improvements in means responsive to pressure differences in hydraulic or pneumatic systems
IPC: F16K39/04
Filed: 1944-02-15
Abstract: 574.756. Actuation of switches. IGRANIC ELECTRIC CO., Ltd., and WRIGHT, S. R. Feb. 15, 1944, No. 2815. [Class 38 (v)] An electric switch is operated by the differential response of two bellows to fluid pressures in different parts of a pneumatic or hydraulic system. Two bellows 7, 8, mounted on block 15 which also carries fulcrum 12 of lever 11, carry pointed studs 9, 10 engaging adjustable studs 23, 24 on the lever 11 which is rotated to make or break contacts 13, 14 according as bellows 7 or 8 prevail. Fluid pressure is transmitted to the bellows through pipes 21, 22 from opposite sides of a gate valve 2, across which is a byepass 3 with cock 4. To obviate difficulty in opening the valve caused by high pressure on the right hand side, the byepass is opened to equalize pressures, and the switch, open until then, now closes. Bellows 7 is larger or further from the fulcrum than bellows 8 so that the switch is closed with equal pressures. The closing of the switch may give a visible indication of the pressure equalization or enable automatic opening mechanism such as an electric motor to operate. The device may be used in welding apparatus having an air operated electrode head.
Patent GB-859796-A (GB)
Title: Improvements in and relating to the preservation of natural rubber
IPC: C08K5/405
Filed: 1958-01-28
Abstract: In order to increase the resistance to ageing of natural rubber in the unvulcanized state, there is added to the rubber or a latex thereof, or to the rubber or the latex containing ingredients which do not render the rubber vulcanizable, 0,005-5% based on the rubber content, of a compound of formula <FORM:0859796/IV(a)/1> in which R1 and R2 are hydrogen, aryl, alkyl, hydroxyalkyl or alkoxyalkyl radicals.  The natural rubber is exemplified by pale crepe, the latex by 60% centrifuged concentrate containing ammonia or ammonia and ammonium borate and by concentrated latex 4 times creamed with sodium alginate.  The addition is exemplified by thiourea, simple mono- and di-alkyl and aryl derivatives of thiourea, thiosemicarbazide, 2-thiouracil, mercaptobenzimidazole.
Patent GB-1255052-A (GB)
Title: A high voltage, metal clad switching device
IPC: H02B13/035
Filed: 1969-01-17
Abstract: 1,255,052. Switchgear structures. BROWN, BOVERI & CIE A.G. 17 Jan., 1969 [22 Feb., 1968], No. 2902/69. Heading H1N. A voltage transformer 5 is connected to the central part of a double isolator 1 similar to that described in Specifications 1,177,034 and 1,236,268, its casing being flanged to the isolator casing at 15. Pressurized gas or cast resin insulation is used as insulating medium.
Patent GB-141447-A (GB)
Title: Improvements in head gear
IPC: A42B1/04
Filed: 1919-02-06
Abstract: 141,447. Kruse, J. S. Feb. 6, 1919. Helmets; hoods; accessories.-A hood or helmet, especially intended for aviators, comprises an inner and an outer covering detachably connected together. Fig. 1 is a side view, and Fig. 3 a back view with the outer covering opened out. The inner covering a is quilted and is preferably formed of kapok or like non-absorbent material. It is provided with ear openings d, a face opening c, a front depending flap e, and a rear flap f divided into two parts. The outer covering b is made of light waterproof material and is provided with ear-pieces p having gauze r across the openings pockets g, h to receive the flaps of the inner covering, bands k connecting the back pockets with the front-pocket and intended to pass under the wearer's arms, a chin-piece m, a vizor n pivoted thereto and secured by a band o, and two side pockets s designed to receive supporting- pieces on a removable wind-screen v. The edges of the outer covering are fastened together along the back by press-fastenings j.
Patent GB-162102-A (GB)
Title: Improvements in and relating to wheel guards for motor and like vehicles
IPC: B62D25/18
Filed: 1920-01-31
Abstract: 162,102. Jewell, A. A. Jan. 31, 1920. Wheel-guards.-In a wheel-guard for motor and like vehicles of the kind which is coaxially and rotatably mounted on the wheel, the guard 12 is carried by a member 6 which is rotatably mounted on a bearing attached to the inside of the wheel. In the construction shown, the member 6 is of annular form and engages a groove in a ring fcrmed of two flanged members 1, 2 connected together by bolts 4 and preferably having a ball-bearing race 3, the ring being bolted to the wheel. At its upper end the carrying-member 6 has a lug 7 pivotally connected to a bracket 9 on the dead axle 10, and at its lower end a second lug to which the guard 12 is attached either directly or through an intermediate member 13.
Patent GB-632851-A (GB)
Title: Improvements in or relating to the manufacture of dental plates
IPC: A61C13/00
Filed: 1947-01-31
Abstract: 632,851. Artificial teeth. McNAUGHT, A. R., and HEWSON, P. A. Jan. 31, 1947, No. 2997. [Class 81(ii)] A lower denture 13, particularly one made of light material such as an acrylic resin, is weighted by a metal bar 11 the weight of which is a substantial part of the weight of the entire denture and which is embedded in the denture or exposed at the inner side thereof. The bar has dovetailed castellations at its upper edge and V-shaped notches at its lower edge. It may be made of tin.
Patent GB-1528162-A (GB)
Title: Thixotropic paints
IPC: C09D5/04
Filed: 1975-01-23
Abstract: 1528162 Thixotropic paint compositions BRITISH STEEL CORP 23 Jan 1976 [23 Jan 1975] 3021/75 Heading C3V A thixotropic quick drying paint composition comprises 1-50% of pigment, 1-50% of pigment extender, 2-4% of gellant which is either a modified montmorillonite clay or aluminium stearate, 3-10% of organic resin binder, 35- 65% of hydrocarbon base solvent and 1-3% polar organic solvent, the gellant being different from the extender, and the percentages being by weight and totalling, together with that of optional dyestuff present, 100%. The exemplified composition comprises TiO 2 , CaCO 3 , modified montmorillonite, coumarone-indene resin, toluene and methanol.
Patent GB-1048311-A (GB)
Title: Chromatographic method for measuring hydrogen
IPC: G01N30/66
Filed: 1965-01-22
Abstract: In the gas chromatographic analysis of a gas mixture containing hydrogen, a mixed carrier gas composed of 37.5% to 42.5% by volume of hydrogen in helium is used, whereby a single-peaked detector signal is obtained for the hydrogen component in the mixture being analysed. In the embodiment described in relation to Fig. 1 (not shown), the mixed carrier gas flows continuously through line 14 and switch 12, while the gas to be analysed flows through a separate line 16-18. Periodically switch 12 is actuated to inject into the carrier gas line a predetermined amount of the gas to be analysed.
Patent GB-192704-A (GB)
Title: Improvements in rotary mercury electric switches
IPC: H01H29/26
Filed: 1923-02-01
Abstract: 192,704. Soc. C. Ropiquet, H. Hazart, et H. Roycourt. Feb. 3, 1922, [Convention date]. Mercury-jet apparatus.-To obtain a rapid break, blades of insular material or of insulated conducting material are placed in the path of a mercury stream, serving to interconnect two electrodes, thereby forming multiple spaces in the stream. As shown in Fig. 1, the centrifugal pump 2 is driven by a shaft 1 in a bearing 3 and dips into mercury 20. The pump has two conduits 6, 6<1> and nozzles 7, 7<1> and carries also members 8, 8<1>, 10, 10<1>, which also carry conduits 21, 21<1>, 22, 22<1> and nozzles 9. 9<1>. 11. 11<1> through which the mercury stream is projected to connect the electrodes 13, 13<1> together. The rapid-breaking means comprise blades or the like 14, 14<1>, 15, 15<1> adjustably mounted on the bearing 3, and blades 12, 12<1> on the electrode supports 18, 18<1>. These interrupt the stream as it leaves the electrodes 13, whose edges are curved inwards. In a modification, Fig. 4, the blades 40, 40<1> are so placed as to stop the supply to the conduits 42, 42<1>, so producing breaks at e, f, e<1> f<1>. The electrodes 44, 44<1> are used with troughs 45 or comprise a set of apertures 46 to allow the mercury to escape. In another modification, the pump has only two nozzles 7. These arrangements, besides diminishing the time of break, also split up the arc formed into a number of smaller ones.