baber/WOPTO huggingface dataset:
Patent GB-1152385-A (GB)
Title: A Process for Catalytically Converting SO2-Containing Gases to Produce SO3 and Sulphuric Acid
Inventor: DRECHSEL HERBERT
IPC: C01B17/765
Filed: 1967-02-22
Abstract: 1,152,385. Sulphuric acid. METALLGES-ELLSCHAFT A.G. 22 Feb., 1967 [1 March, 1966], No. 8548/67. Heading C1A. Sulphur trioxide and sulphuric acid are produced from sulphur dioxide containing gases by a catalytic process in which the gases are dried and conducted together with oxygen through a multi-stage catalytic converter in each stage of which the gases are reacted over one catalyst hurdle to convert sulphur dioxide into sulphur trioxide, and the SO 3 -containing gases leaving each stage of the converter are cooled in at least two stages to the operating temperature of an appropriate stage of a multi-stage absorber, prior to being fed into the absorber where the sulphur trioxide is absorbed with the aid of H 2 SO 4 , the gases discharged from the respective absorber stage, except the last, being heated to the operating temperature of the next catalytic conversion stage by heat exchange with the gases to be subjected to absorption in that absorber stage. The operating temperature of each absorber stage except the last one is from 100‹ to 200‹ C., the last being operated at 100‹ to 150‹ C. The sulphur trioxide containing gases are cooled in a plurality of stages to 110‹ to 140‹ C. before entering the respective absorber stage as shown in Fig. 1. In this Figure the SO 2 -containing gas obtained by burning sulphur in furnace 8 are fed into a first catalytic stage 13 after being cooled in waste heat boiler 11. After partial conversion the gases are cooled in an intermediate heat exchanger 15 and an economizer 16 and then pass into an intermediate absorber 18. The discharged gases are then heated in heat exchanger 15, and fed into a second catalytic stage 22. After partial conversion the gases are cooled in an intermediate heat exchanger 24 and an economizer 25 and then passed into absorber 27. The gases enter the final catalytic stage 31 after passing through heat exchanger 24. The gases were then cooled in steam generator 33, and air preheater 6, and passed into a final absorber 35.
Patent GB-975865-A (GB)
Title: Improvements relating to capseals for container closures
IPC: B65D39/08
Filed: 1963-03-04
Abstract: 975,865. Container closures. AMERICAN FLANGE & MANUFACTURING CO. Inc. March 4, 1963 [March 26, 1962], No. 8556/63. Heading B8T. A capseal, adapted to fit over and enclose an annular neck 17 of a container comprises a cap member of plastics material having a disc-like top and a stepped skirt, and a metal sealing ring 2. The cap member has a slightly inwardly inclined upper skirt portion 5 which serves to retain the sealing ring. When placed over the container neck, the stepped portion of the skirt, which constitutes a shoulder 6, sits on an annular head 18 of the neck. To effect rigid sealing the vertical wall 15 of the sealing ring is crimped inwardly thus deforming the inner surface of the lower portion 7 of the cap skirt against the wall of the container neck. The upper skirt portion 5 has a recess 8 which, when the cap seal is on the container neck, allows the skirt to be readily fractured immediately above the shoulder 6 and thus facilitates removal of the cap top. The upper rim of a screw-threaded bush 16 fitted to the neck of the container forms the annular head 18. The capseal may be used either with or without a separate screw plug, when the latter is employed a plug gasket 23, Fig. 9, is also used. The cap skirt is formed with an ear, or ears, 10 of which one is perforated at 12 allowing a label 13 to be attached.
Patent GB-445062-A (GB)
Title: Improvements in gravity concentration processes for the wet separation of coal or the like
IPC: B03B13/00
Filed: 1935-03-19
Abstract: To prevent the swelling of the solid particles in gravity concentration processes in which aqueous suspensions are used as the separating medium, an oxy-fatty acid or a salt of an oxy-fatty acid is added, an oxy-fatty acid being defined as a carboxylic acid which in addition to the carboxyl group contains a hydroxyl group bound to a carbon atom.  The concentration of fine coal is described, the separating media comprising (a) a suspension of barytes in water to which saccharic acid has been added, (b) a suspension of clay and barytes in water to which gluconic acid has been added, and (c) a suspension of siderite and clay in water to which tartaric acid has been added.  Preferably, 20-60 gms. of the oxy-fatty acid or salt is added per cubic metre of suspension. The addition of reagents such as ferric chloride or aluminium sulphate to reduce the swelling of the solid particles in a suspension and the use of an aqueous suspension of bauxite as the separating medium are referred to.
Patent GB-282330-A (GB)
Title: Method of producing mixed manures
IPC: C05B11/06
Filed: 1927-03-29
Abstract: 282,330. Liljenroth, F. G. Dec. 14, 1926, [Convention date]. Manures.-Crude calcium phosphate is leached with nitric acid, which may be in excess, and calcium sulphate is precipitated by the simultaneous or subsequent addition of ammonium sulphate to the acid solution, which is then filtered, neutralized with ammonia, and evaporated, to form a manure. By reacting on the calcium sulphate with ammonia and carbon dioxide, ammonium sulphate and calcium carbonate are formed. The carbon dioxide is regenerated from the latter by heating it or by treatment with an acid. A little sulphuric acid may be used in the leaching acid. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of other acids having soluble calcium salts, e.g. hydrochloric acid as leaching acid, and the addition of one or more alkali metal sulphates, e.g. sodium or potassium sulphate or bisulphate to the solution. Other bases than ammonia vielding soluble phosphates may be used for neutralization. The calcium sulphate may be heated to give sulphur dioxide which is converted into sulphuric acid and used to prepare the required alkali sulphate. By adding potassium compounds, preferably the chloride, or by adding an excess of soluble sulphate, these compounds and ammonium nitrate remain in the manure. This subject-matter does not appear in the Specification as accepted.
Patent GB-1060923-A (GB)
Title: Mixer
IPC: B01F29/83
Filed: 1965-03-01
Abstract: 1,060,923. Concrete mixers. K. HAGELE and H. JAGER, [trading as ZYKLOS METALLBAU KOMM GES DIPL INS KARL]. March 1, 1965 [March 30, 1964], No. 8648/65. Heading B1C. A mixer with a rotatable pan 1 has main rotatable radial arm stirrers 20 eccentrically arranged therein; auxiliary rotatable radial arm stirrers 26 (see also Figs. 3 and 4 not shown) which may be slightly twisted like propellers, situated between guide plates 39, 40; a separating blade 50; and a fixed or adjustable ploughshare-like blade 51. The auxiliary stirrers 26 can be raised out of the mix during operation. There is a resiliently supported scraper blade 44 (see also Figs. 5 and 6, not shown) which is vertically, radially and pivotably adjustable. The separating blade 50 is half the depth of the pan and is carried on an arm 52 pivotable at 54 from an upper inoperative position to a lower operative position in which the blade is in contact with the bottom of the pan and part of the mix flows over it; in this position it acts also as a guide blade to discharge the pan. All the stirrers and blades together with their drive motors and actuators are suspended from a cover plate which is pivotable to swing them out of the pan, which may be removable. The pan has a central bottom discharge opening closed by a lid 5 which also supports the pan so that it rotates on the pivot 6 under the reaction of the mix; the pan is restrained by guides, 3 4 which may incorporate roller bearings. The stirrers are rotated by electric motors and adjusted by hydraulic or pneumatic cylinders as 10, 56 (see also Figs. 3 and 6, not shown).
Patent GB-1055130-A (GB)
Title: Improvements in or relating to apparatus for handling fluent materials
IPC: B63B22/02
Filed: 1964-03-02
Abstract: 1,055,130. Unloading fluent material. W. TRENGOVE and G. PETRIE. Feb. 25, 1965 [March 2, 1964], No. 8748/64. Heading B8E. Apparatus for transferring fluent material from one container to another such as loading a ship with oil or grain comprises a structure such as a pontoon 10 having ducting 31 leading to discharge points 42, 43. Connection is made to a ship 55 by flexible hoses 47-49 housed when not in use in vertical passages 50 and secured to a post 52 by a chain so that the hoses are hanging freely in water or air and are not chafed. The passages 50 may be formed in a jetty or in the case of a grain transfer in a platform.
Patent GB-1273261-A (GB)
Title: Improvements in or relating to aluminium alloys
Inventor: HODIERNE FRANCIS ARTHUR
IPC: C22C21/12
Filed: 1969-02-18
Abstract: 1,273,261. Aluminium alloy. BRITISH ALUMINIUM CO. Ltd. May 5, 1970 [Feb. 18, 1969], No.8772/69. Heading C7A. An aluminium base alloy consists of:- Cu 1À5-3% Mg 0À5-1À5% Fe 0-0À1% Mn 0-0À5% Si 0-0À7% Ti 0-0À2% and Zr 0-0À4%, the balance, apart from impurities, being Al. The alloy may be homogenized at 500-590‹ C. for up to 24 hours, hot rolled, inter annealed in one or more stages at 350-500‹ C., solution treated at 400-550‹ C., air cooled and aged at 160-200‹ C. for up to 12 hours.
Patent GB-1463493-A (GB)
Title: Process controls
IPC: B29C45/76
Filed: 1973-02-22
Abstract: 1463493 Automatic control H F BISGAARD and B A KLEMAR 10 May 1974 [22 Feb 1973] 8822/73 Heading G3N In an automatic surveyance system for monitoring a process involving at least two parameters which are to have a desired functional relationship, a curve representative of the desired relationship is produced on a surface of a first member which is movable relative to a second member so that the second member can follow the curve on the first member; the instantaneous values of the parameters are measured and are converted into relative movements of the first and second members, and any deviation of the second member from the curve is detected by means including a sensor on the second member and an alarm and/or a control signal is produced in response to the detection of a deviation. In an embodiment Fig. 2, a recording cylinder 12 is rotated in a direction and at a speed or by an angular amount which is a function of the axial displacement of a piston pushing a worm feed member in a known plastics extrusion apparatus Fig. 1 (not shown). A stylo 28 coupled to a pressure transducer 22 responsive to pressure in the cylinder, wherein the piston moves, produces the said curve 30 during a test run known to be faultless. The cylinder may be transparent and have a coating of opaque wax which is scratched by the stylo to produce a transparent curve, the thickness of which determines the tolerance allowed. To detect deviation from the curve during a sub-  sequent process run, a lamp is provided within the cylinder and the stylo is replaced by a photoelectric detector which follows the output of the pressure transducer 22 as the cylinder rotates. During the return stroke of the piston, a spring (not shown) returns the recording cylinder. The detector is connected to a relay to produce the alarm or control signal when no light is detected. Alternatively the required parameter curve may be recorded on a magnetic carrier; or it may be displayed on a double beam CRT; or as illustrated Fig. 3 (not shown), it may be in the form of a cam surface on a rotatable cam.
Patent GB-616359-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J1/16
Filed: 1946-03-22
Abstract: 616,359. Thermionic valves. PHILIPS LAMPS, Ltd. March 22, 1946, No. 8925. Convention date, Oct. 14, 1941. [Class 39 (i)] In a thermionic valve the cathode is built up from three or more individual filament branches, each of which comprises one or more V's. Each branch is connected at one end to an external conductor individual to that branch, and at its other end to another external conductor. This construction enables the filament to be used on D.C. or single or polyphase A.C. without excessive hum. The Figure shows a construction suitable for use with three-phase alternating current. The three branches 1, 2, 3 are connected internally to a star point 7; the other ends of the branches and a connection from the star point are taken out through the wall of the envelope.
Patent GB-1002127-A (GB)
Title: Improved reversing gear
Inventor: MERRITT HENRY EDWARD
IPC: F16H3/00
Filed: 1961-03-11
Abstract: 1,002,127. Reversing gear. MERRIT & CO. (ENGINEERING) Ltd. March 5, 1962 [March 11, 1961], No. 8965/61. Headings F2C, F2D and F2L. A reversing gear comprises pinions 15, 16 rotated continuously in opposite directions on the output shaft 11 by drive pinions 13, 14, multiplate clutches 22 being mounted between the pinions 15, 16 and the output shaft for establishing forward or reverse drive by axial movement of a collar 32 along a threaded sleeve 30 splined to the output shaft. The collar 32 is operated by a hand lever 40 and pivoted arm 45 to give torque-assisted movement of the clutch pressure members 25. The lever 40 is held in the neutral position by a spring detent 51, 52, while a spring-toggle 62, 64 is effective upon movement of the lever to maintain the clutch engaging pressure. A gear-wheel pump 70 supplies lubricant to the clutches through an axial bore 75 in the shaft 11.
Patent GB-421237-A (GB)
Title: Apparatus for developing fabrics printed with vat-dyestuffs
Filed: 1933-06-12
Abstract: <PICT:0421237/IV/1> <PICT:0421237/IV/2> An apparatus for developing moist fabrics which have been printed with vat dyestuffs comprises a chamber containing a heating element, preferably heated electrically, which can be adjusted to a desired temperature, means for passing the fabric through the chamber in close proximity to the heating element, and a device for regulating humidity.  As shown, the goods pass a heating element B and fixation takes place during their subsequent passage through the chamber, the humidity of which is controlled by humidifier A.  Specification 421,279 is referred to.  The Specification as open to inspection under Sect. 91 comprises also Fig. 1 (Cancelled) in which the moist printed goods are conducted at a high speed around a heated body H when reduction of the dyestuff takes place.  Fixation occurs by passage through the air after leaving the chamber.  This subject-matter does not appear in the Specification as accepted.
Patent GB-395310-A (GB)
Title: A joint for connecting the tubular-metallic framework with the timber of school desks, seats and the like
IPC: F16B12/42
Filed: 1933-03-25
Abstract: 395,310. Furniture joints. bENNET, Ltd., J. D., BENNET, J. S., and HARVEY, S., 36, Tennant Street, St. Rollox, Glasgow. March 25, 1933, No. 9051. [Class 52 (ii).] A joint for connecting metallic tubing to the timber of school desks &c. consists in flattening the end 1 of the metallic tubing, forming a V-shaped incision 3 therein and bending out the barb 4, and inserting into a mortise 5 formed in the timber 6 so that the barb is caused effectively to engage one wall of the mortise, preventing withdrawal of the flattened end.
Patent GB-565388-A (GB)
Title: Improvements in electric supply systems
IPC: B63H23/24
Filed: 1943-06-07
Abstract: 565,388. Transmitting mechanical power. ENGLISH ELECTRIC CO., Ltd., CARNEGIE, H. S., and WELSH, R. J. June 7, 1943, No. 9097. [Class 38 (iv)] [Also in Group XXXVII] An electric power equipment comprises two or more independently driven alternators connected in parallel and supplying a common load through transforming means which can be adjusted, when desired, and without interrupting the load circuit, to reduce substantially to zero the E.M.F. applied to the load while the alternators are still generating and thus keep in synchronism. Fig. 1 shows a synchronous motor 3 for driving a ship's propeller and supplied by paralleled alternators 1, 2 through single phase transformers 4-6 having secondary windings 4b, 5b, 6b which can be magnetically uncoupled from the primary windings 4a, 5a, 6a when it is desired to reduce to zero the voltage across the motor. Uncoupling may be effected by providing the transformers with movable magnetic shunts. Alternatively, the transformers may be in the form of single phase induction regulators, the rotors of which are preferably ganged and which may be moved to such a position as to give zero voltage output. To render unnecessary a reversing switch for the motor, the transformers 4, 5 may be combined into a single induction regulator, whereby the secondaries 4b, 5b may be coupled with either of the primary windings 4a, 5a to obtain different phase rotations, or uncoupled from both. Auxiliary loads may be taken from the alternators through transformers 9, 10. In a modified system, the motor is connected directly to the alternators through the secondary windings of a three-phase induction regulator which, at one setting, passes the full alternator voltage-with a slight buck or boost-to the motor. At another setting, the primary windings of the regulator induce in the secondary windings a voltage equal and opposite to that of the alternators, so that the voltage across the motor is then zero.
Patent GB-710186-A (GB)
Title: Improvements in and relating to foundations for gas-holders and the like
IPC: E02D27/38
Filed: 1951-04-19
Abstract: 710,186. Foundations for gas holders. MASCHINENFABRIK AUGSBURG - NURNBERG AKT.-GES. April 19, 1951 [May 26, 1950], No. 9196/51. Class 20 (2) Deforming effects of horizontal soil movement on a gas holder 7 are prevented by means of a foundation consisting of a ferro-concrete upper part 2 of disc form which is flexible in the vertical direction but rigid horizontally, the part 2 being above the level of the surrounding soil 5 and supported on a separate lower part 1 sunk in the ground and relatively displaceable in the horizontal direction to the upper part 2. Anchors 10 in the part 2 secure the gas holder in the horizontal direction but allow play for vertical movement, so that if vertical displacements of the lower part 1 occur at various points, the upper part 2 can follow this movement owing to its flexible construction without, however, taking the gas holder with it. A sliding layer 4 of sand is disposed between the upper part 2 and the lower part 1 and soil 3.
Patent GB-712457-A (GB)
Title: Improvements in or relating to reversing devices
IPC: F16H3/00
Filed: 1952-04-10
Abstract: 712,457. Reverse gearing. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 10, 1952 [April 14, 1951], No. 9244/52. Class 80 (2) A reversing device, for use, e.g., in wireless transmitters or receivers, comprises a unidirectional rotating driving shaft 1 carrying fast gears R1, R2 meshing, respectively, with a gear R3. fast on an auxiliary shaft 5 and a gear R6 clutchable to a driven shaft 11. the gear R3 also meshing a gear R4 clutchable to the driven shaft and the gear R6 .meshing a gear R5 loose on the auxiliary shaft, means being provided which automatically and periodically clutch one or other of the gears R4, R6 to the driven shatt, which is thereby rotated in one or other of two directions. A bush 15 on the driven shaft is recessed to receive in part a rod 16 also received in part in a groove in the shaft, the ends of the rod being formed as semi-cylindrical rocking keys 21, 22, perpendicular to each other, which can engage alternatively with circumferentially extended slots 23, 24 in the hubs of the gears R4, R5 to clutch these gears to the shaft. Levers 17, 18, fast on the rod 16, project through the bush 15 and can co-operate with pins 7, 8 on the gears R3, R4 to rotate the rod 16, thus disengaging clutch 21 and engaging clutch 22, or vice versa, the arrangement being such that the pins and levers 7, 17 and 8, 18 are rotating in the same direction when engaging each other. The gear sizes can be chosen so that automatic reversal of the driven shaft occurs after more than, or less than, one revolution of the driving shaft, the auxiliary shaft 5 being mounted in adjustably positioned bearings, whereby gears of different size can be substituted for the gears R3, R5 and adjustment to allow such substitution effected.
Patent GB-206807-A (GB)
Title: An improved vaporiser attachment for internal combustion engines for heating by electricity the charge for internal combustion engines
IPC: F02M1/00
Filed: 1923-04-05
Abstract: 206,807. Mail, I. R., Mail, J. D., and Tait, J. St. G. Reynolds-. Nov. 9, 1922, [Convention date]. Vaporizers, external. -A device for heating the charge comprises a spool of aluminium alloy or like material, which is placed between the carburettor and the induction pipe and round which is wound a resistance wire B, insulated by sheets of mica or the like C and asbestos cord E. A metal cover F surrounds the whole and the resistance wire is brought through beads G and a fibre block D to terminal H, or one end may be grounded on one of the flanges. The charge passes through a central hole and a series of Venturi passages I. The switch head is provided with a ten-ampÞre fuse.
Patent GB-558335-A (GB)
Title: Improvements in mowing or reaping machines
IPC: A01D43/02
Filed: 1942-07-06
Abstract: 558,335. Reaping-machines ; rakes. PIERCE & CO., Ltd., P., and HUTCHINSON, W. July 6,1942, No. 9336. [Class 6 (iii)] In a reaping-machine, a rake capable of being raised or lowered is mounted at the rear of the cutterbar and is so connected with the lifting mechanism that it is dropped automatically as the cutter-bar is raised. The rake may be raised automatically after travelling a predetermined distance. As shown, when the automatic lift shaft 23 is actuated for raising the cutter-bar ,a detent 22 thereon engages a roller 21 to rock a lever 16 against a spring 24 and raise a catch 18 from a detent 15, thus releasing a shaft 2 for rotation by a spring 25 and the weight of the rake 8 so that the latter falls. Lost motion is provided between the shaft and the rake, as by the freelymounted forked end 6 of the rake arm 7 resting on a short lever 26 fixed to the shaft, so that the shaft is further rotated by the spring 25 when the rake has reached the ground. As the rake falls a rack 11, connected by a link 10 to an upwardly-projecting arm 9 on the shaft 2, travels over rollers 29 in a bridge member 28 until its flanges 27 pass off the rollers when it falls and engages a pin wheel 13 rotating with the wheels 5. The rake is kept in engagement with the pin wheel by the flanges 27 travelling under the rollers 29 until the rake is raised and the detent 15 has passed below the catch 18, the flanges then pass from under the rollers and, after the rack has been raised as by spring means, re-engage the tops of the rollers. Means may be provided for holding the catch 18 out of engagement with the detent 15 to allow the rake to rise and fall intermittently. The roller 21 is carried by an adjustable sleeve 19 to allow it to be moved clear of the detent 22. A coupling 33 is provided for detaching the rake. In the case of reapers having manually-operated lifting mechanism, the hand lever is provided with means for lifting the catch 18.
Patent GB-539057-A (GB)
Title: Process for reducing felting properties of wool
IPC: D06M23/00
Filed: 1940-05-28
Abstract: 539,057. Treating wool &c. BLEACHERS' ASSOCIATION, Ltd., PARKER, C. S., FARRINGTON. F., STUBBS, A. E., and SPEAKMAN, J. B. May 28, 1940, No. 9338. [Class 15 (ii)] Textile materials, e.g. yarn, slubbing or fabric containing wool or other animal fibres are treated at any stage in their manufacture to reduce the tendency to feet with a solution in an organic solvent of alkali metal sulphides, polysulphides or hydrosulphides. The solvent may be an alcohol, e.g. isopropyl alcohol for potassium mono-sulphide and the temperature and concentration of the solution should be such that the time required for the treatment is about 1 hour. Examples are given. Specifications 538,396 and 538,428 are referred to.