baber/WOPTO huggingface dataset:
Patent GB-1505281-A (GB)
Title: Process and apparatus for the purification of flue and other waste gas
IPC: C05C3/00
Filed: 1975-08-18
Abstract: 1505281 Removing sulphur dioxide from waste gases H HOLTER 18 Aug 1975 [19 Sept 1974 3 Oct 1974 6 March 1975 14 March 1975 2 May 1975 5 May 1975 19 July 1975] 34212/75 Heading C1A Waste gases containing SO 2  are purified by bringing the gas into contact with a circulating aqueous wash liquid, the pH of the wash liquid before contact with the gas being adjusted to the basic range but not exceeding 12 such that the pH of the wash liquid after contact attains the weakly acid range but does not drop below 4À5, the wash liquid circulating from a gas washing means 3, 4 to a vessel 6 where salts and/or acids 7 which increase the degree of dissociation of Ca<SP>2+</SP> ions are added and intensive mixing of air 8 with the liquid is effected, then next to an oxidation vessel 9 wherein the CaSO 3  or Ca(HSO 3 ) 2  formed is oxidized to CaSO 4 , then from the oxidation vessel to a separator 14 wherein the wash liquid has a dwell time of at least 15 minutes and is then clarified, calcium carbonate and/or calcium oxide and/or calcium hydroxide being introduced 11 after the oxidation and before the solids separation to effect the required adjustment of the pH value of the wash liquid to the basic range not exceeding a pH value of 12, the clarified wash liquor then being returned 15 to the gas washing means. The additives increasing the degree of dissociation of calcium may be acids and/or salts of the halogen group, nitrates, phosphates, or organic acids and their salts, the anions of which form with calcium ions water-soluble compounds, which in the presence of sulphurous acid permit exchange in neutral or weakly acid medium with the acid residue of sulphurous acid and in an alkaline medium reform the water soluble calcium compounds. The additive may be formic acid or an ammonium salt (ammonium formate specified). An alkaline salt (FeCl 3 , Fe 2 (SO 4 ) 3  specified) may be added to the wash liquid during the oxidation step. The oxidation may be carried out in the presence of elemental iron optionally in the form of refined steel or copper alloy steel as catalyst. Reference has been directed by the Comptroller to Specification 1,445,228.
Patent GB-298811-A (GB)
Title: Improvements in mechanism for delivering folded products
IPC: B65H33/18
Filed: 1927-12-17
Abstract: 298,811. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). Dec. 17, 1927. Delivery apparatus.-Folded sheets delivered from cylinders 2, 3 into piles P of predetermined number on endless bands 9 are pressed down along the fold line after they have been delivered on to the pile. Stripper fingers 12 pivoted on a shaft 15 are lifted into engagement with grooves 14 on the cylinder 3 by means of a cam 21 on a shaft 20 engaging a roller 22 on a link 18 connected to a crank-arm 17 on the shaft 15. When the grippers on the cylinder 3 release the sheet, the cam 21 allows the fingers 12 to fall under the action of a spring-controlled arm 23 on the shaft 15 so as to press on the pile along the fold line of the sheets. Fixed stop-fingers 25 having curved ends 27 assist the fingers 12 in positioning the sheets on the pile. Pockets to receive the piles are formed on the endless bands 9 by rods 10 fixed to transverse bars 8 on the driving chains 4 for the bands which pass over the bars 8. The chains 4 pass over sprocket wheels 6 engaging gear wheels 34 on a stub shaft 35 having mounted thereon two ratchet discs 36, 37 the first of which is fixed and the second loosely mounted. A pawl 39 oscillated by a connecting link 31 from a shaft 30 coupled to the shaft 20 is of sufficient width to engage both discs 36, 37, but is allowed to engage the disc 36 so as to move the bands only when a deep tooth on the disc 37 is engaged thereby.
Patent GB-509600-A (GB)
Title: Improvements connected with auto-transformers
IPC: H01F38/08
Filed: 1937-12-13
Abstract: 509,600. Transformers. SOC. SAVOISIENNE DE CONSTRUCTIONS ELECTRIQUES. Dec. 13, 1937, No. 34456. Couvention date, Dec. 19, 1936. [Class 38 (ii)] In a high leakage reactance auto-transformer having a winding in two or more parts separated by a leakage bridge, the point of connection between the winding parts is arranged to be intermediate the supply circuit connections. This is stated to give an increased range of voltage variation between no-load and fullload. In the form shown in Fig. 4, giving an output voltage lower than the supply voltage, the main winding part between u and v is tapped at M to which the further winding part is connected. In a modification of this, a balanced arrangement is obtained by providing two winding parts which are connected to symmetrically arranged tappings on the main winding part. An arrangement giving a voltage greater than the supply voltage is shown in Fig. 6 in which the supply lead u is connected to a tapping on the part winding. Alternatively, the main winding is connected to the tapping on the part winding and the supply lead u is connected to the lower end of the part winding. Each of these arrangements may be provided with a further symmetrically connected part winding.
Patent GB-446480-A (GB)
Title: Improvements in or relating to electric incandescent lamps for use in mines and like locations
IPC: H01K1/64
Filed: 1935-12-12
Abstract: 446,480. Electric incandescent lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent-Treuhand- Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Dec. 12, 1935, Nos. 34480 and 34481. Convention dates, Dec. 12, 1934 and Jan. 9, 1935. [Class 39 (ii)] In an electric incandescent lamp for use in mines, one end of the filament 6 is connected in the usual manner to a contact 5 on the cap 2 whilst the other end is connected to a lead 7 passing through the envelope at a point remote from the cap, and this lead is connected to a second contact 11 on the cap by an external conductor 10 weakened at some point such as 13 so that it will break if the bulb is broken. The weakened point may be of reduced cross-section or the metal may be treated so as to become glass hard and brittle. In a modification; the conductor 10 is resilient and is maintained in contact with the cap merely by its elasticity so that if the bulb breaks, the circuit is interrupted.
Patent GB-194033-A (GB)
Title: Improvements in and connected with indicator, sign and annunciator devices and the like
IPC: G09F7/02
Filed: 1921-12-22
Abstract: 194,033. Mead, A. A., and Mead, Mc- Lean, & Co., Ltd. Dec. 22, 1921. Loose-letter and like signs and notice boards. -In a signboard of the type in which each of the interchangeable letters &c. is retained by a stud adapted to be passed through a slot in the board, the shank d of the stud is provided with a head d<1> which projects laterally and downwardly from the shank. When mounting the letter, the head d<1> is passed through a T-shaped slot b in the board a and then moved downwardly, to engage the lateral projections over the sides of the slot and the downward projection over the bottom edge, thereby providing a three-point engagement. In a modification, the board is provided with slots of keyhole formation, and the head of the stud consists of a disc.
Patent GB-962304-A (GB)
Title: Thread-forming tool and method of making same
IPC: B21H3/02
Filed: 1962-09-11
Abstract: 962,304. Rotary rubbing tools. GENERAL AMERICAN TRANSPORTATTON CORPORATION. Sept. 11, 1962 [Oct. 25, 1961], No. 34649/62. Heading B3V. A fluteless thread forming tool comprises an elongated threaded shank having a rear body portion provided with a uniform thread and a front pilot end provided with threads carrying lobes. The tool, which may be a tap or a self-tapping screw, is formed, by rolling between dies, with lobes 21, 31, 41, and 51 which either decrease, increase, or remain the same size as they approach the screw end. They may be skewed relative to the screw axis, if desired. The profile, Fig. 2, of the lobes may vary, the outer surface of lobes being parallel or sloped relative to the screw circumference.
Patent GB-429286-A (GB)
Title: Improvements in joints of structures, such as sectional buildings, chambers, cabinets, cases, walls, beams, blocks, furniture, toys and the like
IPC: E04B1/48
Filed: 1933-12-09
Abstract: 429,286. Furniture joints. NICOL, A., 255, Gorbals Street, Glasgow. Dec. 9, 1933, No. 34737. [Class 52 (ii)] [See also Group X] A joint for furniture, toys, &c. comprises interfitting projections and rabbets on the adjacent ends of the parts to be joined and one or more three-sided retaining members of which two parallel sides or prongs engage in grooves or holes in the ends of the parts while the third side or back bridges the joint. As applied to a sectional building, the vertical frame members A, B, Fig. 1, of the walls may interengage as at C and have holes drilled to receive the prongs of the retaining member E. A batten, moulding &c. F fills the corner gap between the parts A, B and is secured by long screws G. The moulding may enclose a joint-making packing D, to prevent passage of fluid through the joint. The retaining members may be channel irons whose flanges engage in grooves in the sections. The retaining member may be of M-shape, Fig. 12, for insertion from the inside.
Patent GB-186001-A (GB)
Title: Improvements relating to trousers presses and the like
IPC: A47G25/72
Filed: 1921-12-28
Abstract: 186,001. Harvey & Co., Ltd., M., and Cubley, H. Dec. 28, 1921. Trouser presses.-A trouser press of the type comprising two or more presser boards between which the trousers are placed has metal clamping strips or plates 1 of curved or arched cross-section. The plates have holes 2 for securing-screws and slots 3 for the pressure bolts, and are placed with their concave surface towards the boards.
Patent GB-1435156-A (GB)
Title: Method of and apparatus for drying particulate material
IPC: B01F33/40
Filed: 1973-07-20
Abstract: 1435156 Drying particulate material NAUTAMIX PATENT AG 20 July 1973 [20 July 1972] 34800/73 Heading F4G [Also in Division B1] The invention concerns a method of and an apparatus for drying particulate material. The method comprises mechanically agitating the material in a vessel 12 of a drying apparatus and simultaneously sweeping the material with a gas introduced into the vessel. The gas introduced into the vessel is pre-dried to a dew point of less than 36 F. and is heated to a temperature of less than 400 F. As shown the vessel 12 forms part of a mixer 10, a screw conveyer 16 universely mounted at one end at the bottom of the vessel being rotatable about its own axis and being mounted at its other end on a rotatable arm 20 being provided in the vessel. The gas is dried in a drier 11 and from thence passes by way of a valve 36 to a heater 34. From the heater 34 the gas passes into a chamber 29 and from there through a porous plate, e.g. of sintered stainless steel, into the vessel. The pressure of the gas is less than that which would cause fluidization of any of the material. The dew point of the gas may be from -10 to -40 F. The vessel may have a part-cylindrical section and the screw conveyer may be conical or twin agitators may be provided.
Patent GB-521975-A (GB)
Title: Improvements in and relating to the production of anhydrous metallic chlorides
IPC: C01G1/06
Filed: 1938-11-30
Abstract: 521,975. Metallic chlorides. POLLAK, J. E. (Richardson, H. A.). Nov. 30, 1938, No. 34817. [Class 1 (iii)] Anhydrous metallic chlorides are prepared by heating a compound of the metal with chlorine containing a small amount of water vapour. When the compound contains oxygen a reducing agent such as carbon may be added. Chlorides specified are those of aluminium,iron, chromium, beryllium, magnesium, cerium, tungsten, molybdenum, tantalum, niobium, uranium, zirconium and thorium.
Patent GB-808347-A (GB)
Title: Centrifugal casting apparatus
IPC: B22D13/02
Filed: 1955-04-27
Abstract: 808,347. Centrifugal casting-machines. HERMAN PNEUMATIC MACHINE CO. April 27, 1955 [May 5, 1954], No. 34963/56. Divided out of 808,345. Class 83 (1). In a centrifugal casting- machine employing an openended mould, a carriage is movable axially of the mould and a pouring-spout is mounted on an indexable support on the carriage so that its outlet may extend into the mould. For simultaneously casting two pipes, two flasks 16, Fig. 1, are rotatably mounted in a holder 7, as described in Spceification 808,348. A carriage 69, fed axially by a fluid-pressure cylinder 72, slides on guides 68 and carries a cradle 77 indexable on trunnions 76 by fluid motors 75 to position the cradle either as shown in Fig. 5, with pouring-spouts 100 in an inoperative position, or as shown in Fig. 6. The cradle 77 carries a socket-forming core 102, as described and claimed in Specification 808,345, and also carries a sleeve 60 for supporting the end of a mandrel, 25 used for consolidating the sand in the flask 16. A hub 84 is also carried by sleeve 60 to form a socket recess 84<SP>1</SP> in the mould during consolidation, for forming moulds for the production of pipes having a socket at each end. When producing pipes having a socket at one end and a spigot at the other, sleeve 60 &c. is replaced by a sleeve 61, Fig. 3, for supporting the mandrel 25, this sleeve having a collar 66 for forming a spigot recess 66<SP>1</SP> in the mould, and a reduced portion 67 to form a metal-retaining wall 67<SP>1</SP> in the mould. Metal is supplied to spouts 100 from tilting or bottom-pouring ladles 103. Other features of the machine are described in the Specifications above referred to.
Patent GB-1168019-A (GB)
Title: Process and apparatus for Polymerisation of Olefins
IPC: C08F2/00
Filed: 1968-07-23
Abstract: 1,168,019. Continuous olefin polymerization. SOLVAY & CIE. 23 July, 1968 [1 Aug., 1967], No. 35117/68. Heading C3P. A process, for regulating the polymerization of gaseous olefins in a reaction operating continuously at a low pressure and in the presence of a diluent, catalyst and chain-transfer agent to produce at a constant rate polyolefins of a constant molecular weight, comprises maintaining constant the temperature conditions and establishing constant flows of solvent and chain transfer agent into the reactor, measuring the amount of gas dissolved in the reaction mixture, producing a signal proportional to the difference between that amount and an initial preset value of the amount of gas dissolved in the reaction mixture, adjusting the monomer flow in response to the signal to such a degree that the amount of gas dissolved in the reaction mixture returns to the above initial preset value and progressively regulating the catalyst flow to bring the adjusted monomer flow back to its initial preset value. A device for carrying- out this process is shown in the figure. A reaction 1, fitted with a stirrer 2 and surrounded by a water-jacket 20 (to maintain a constant temperature) is fed with olefin, catalyst, transfer agent and diluent through the ducts 3, 4, 5 and 6. The flows through the ducts 5 and 6 are maintained constant by the regulators 13 and 16. The regulator 8, which controls olefin input, is connected to the gaseous effluent output (from separator 27) by means of regulator 46 and transmitter 42. The catalyst flow (in duct 4) is controlled by the regulator 10, and this is connected to the diaphragm 26 so that the olefin input can be brought back to a predetermined value. In the examples, ethy lene is polymerized in hexane using a catalyst comprising the reaction product of Mg(OH)Cl and TiCl 4 ) activated with tri-isobutyl aluminium, the chain transter agent being hydrogen.
Patent GB-1220449-A (GB)
Title: Improvements in or relating to ion sources
Inventor: COLLINS LESLIE EDWARD
IPC: H01J37/317
Filed: 1967-07-31
Abstract: 1,220,449. Ion sources. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 23 July, 1968 [31 July, 1967], No. 35144/67. Heading H1D. A duoplasmatron ion source, e.g. for introducing impurity ions into solids, has an insert 5 located within the aperture of the intermediate electrode 2, the desired ions being sputtered from the material of the insert, e.g. Cu or C, or from material impregnated in a porous insert, e.g. of W, under bombardment of the gas ions produced in the arc discharge between the cathode 1 and the anode 3. The necessary voltage for the sputtering action is supplied by the source B3. When it is desired to produce Fe ions no insert is necessary, the ions being sputtered from the iron intermediate electrode itself. The gas ions are suitably argon. The axis of the intermediate electrode 2 may be displaced laterally from the common axis of anode 3 and extractor electrode 4. Reference has been directed by the Comptroller to Specification 1,086,914.
Patent GB-1581060-A (GB)
Title: Cleaner suitable for cleaning root crops such as beets
IPC: B07B1/48
Filed: 1977-08-22
Abstract: The cleaner comprises a cleaning drum (4), a transverse elevator (5) for loading onto the truck, and an elevating conveyor (7) located below the cleaning drum for the purpose of returning the earth falling from this drum to the rear of the cleaner. The cleaning grid consists of metal wires arranged at equal intervals at the periphery of the drum and parallel to its axis. This cleaner serves to clean all roots stored in silos on the site where they are lifted, and may also be installed at a fixed station. <IMAGE>
Patent GB-908389-A (GB)
Title: Apparatus for supporting glass sheets
IPC: C03B35/20
Filed: 1959-10-20
Abstract: 908,389. Glass manufacture. PITTSBURGH PLATE GLASS CO. Oct. 20, 1959 [Oct. 23, 1958 (2); Jan. 14, 1959 (2)], No. 35481/59. Class 56. Tongs for supporting glass, particularly during annealing, comprise arms 54, 56, pivoted at 58 and provided with pointed screws 64, 66 for gripping the edge of the sheet G, and a member for limiting the distance between the arms to which the glass is inserted, which member is pivoted, either about the axis 58, as is the member 70, Fig. 1, or about the axis of the screws 64, 66. Thus, Fig. 5 shows parallel strips 142, on either side of the arms, bridged at their ends by members 148 pivoted on the screws. The strips 142 may be replaced by pins projecting from a single member pivoted on one of the screws. Members, such as rings 76, 78 attached to the arms guide the glass as it is moved upwards into position. The means for suspending the tongs form the subject-matter of Specification 908,390.
Patent GB-1528262-A (GB)
Title: Sewing apparatus
IPC: D05B3/10
Filed: 1976-08-26
Abstract: 1528262 Sewing pockets NECCHI SpA 26 Aug 1976 [3 Oct 1975] 35544/76 Heading DIG Sewing apparatus for producing welted patch pockets on a fabric workpiece 14 comprises a sewing machine 10, a trolley 8 for feeding the workpiece, two workpiece clamping elements 24, 26 operable independently of each other, a blade element 20 for pressing a fabric patch 22 against the workpiece, side presser blade elements 16, 18 for pressing the patch against the sides of the blade element, a carriage 40 displaceable by first drive means 34, pocket strip clamping means 60 supported on the carriage and displaceable with respect thereto by second drive means44, and a frame element 84 carried by the carriage to co-operate with the strip clamping means 40 to interact with a free edge of the pocket strip 6. The action is to place the free edge of the pocket strip in a position (Fig. 5 not shown) where it is positioned between one side of the patch 22 and the blade element 18.
Patent GB-448867-A (GB)
Title: Improvements in and in the manufacture of memorials, pillars, columns, pedestals, bases, slabs, walls, borders, curbings, edgings, ornamental structures and the like forcemeteries, graveyards, churchyards, public and private gardens and the like
IPC: E04B2/04
Filed: 1934-12-11
Abstract: 448,867. Monuments. MOORTON, A. H., 8, Hillworth Road, Tulse Hill, London. Dec. 11, 1934, No. 35557. [Classes 20 (i), 20 (iv), and 87 (i)] [See also Group I] A memorial, pillar, column, pedestal, base, slab, wall, border, curbing, edging, ornamental structure, or the like for use in cemeteries, gardens, &c. consists of regularly or irregularly shaped pieces of stone or like material bound together by a mixture of cement and fine aggregate of crushed stone in such a manner that the exposed pieces of stone &c. are displayed in prominent relief, and some of the crushed stones forming the aggregate are also brought into distinctive relief, by raking out some of the fixing mixture from the interstices b separating the regularly or irregularly shaped pieces of stone &c. and at once washing the interstices and exposed surfaces with a mixture of sharp sand and water. The selected and graded pieces of stone may be cut, tooled, and shaped. Symmetrical or irregular cavities to receive soil or water for growing plants may be provided in the structures as they are built up, the pieces of stone forming the cavities being exposed in relief.
Patent GB-888136-A (GB)
Title: A method of producing profiled inking rollers for steel engraving or photo-gravure printing processes
IPC: B41C1/18
Filed: 1959-10-21
Abstract: 888,136. Inking-apparatus. MASCHINENFABRIK GOEBEL G.m.b.H. Oct. 21, 1959 [Nov. 13, 1958], No. 35746/59. Drawings to Specification. Class 100(2) A method of producing profiles on inking rollers for use in a multi-colour gravure printing process wherein a plurality of inking rollers are used, each having raised portions corresponding to the areas to be printed in one colour, comprises producing from the original engraved plate a transfer roller, and thence a further plate impressed at sufficient depth to distinguish the boundary lines between the colours, engraving said lines by hand, producing from said further plate for each colour a further transfer roller having said boundary lines thereon as raised lines, mechanically removing from said further transfer roller all raised lines other than the boundary lines of the colour concerned, hardening the transfer roller, and running the latter and the inking roller together, the raised lines acting as knives to cut the lines in the inking roller. The inking roller may be formed with a flexible or plastic surface layer which can be stripped off to leave the inking area in relief. In order to avoid any gap between the colours when printed, the colour areas are made to overlap slightly, either by engraving two closely adjacent boundary lines on said further plate, or by modifying the hardened raised lines on the various transfer rollers.