baber/WOPTO huggingface dataset:
Patent GB-507787-A (GB)
Title: An improved chimney or ventilating-shaft terminal
IPC: F23L17/08
Filed: 1938-02-15
Abstract: 507,787. Chimney and ventilating- shaft terminals. MACKENZIE, K. Feb. 15, 1938, No. 4640. [Class 25] A chimney or ventilating-shaft terminal comprises coaxial superposed cones or louvres 2, 3, 4, having their lower edges of the same diameter, the louvres 2, 3, 4 being notched or slotted to allow the passage of upright supports 1 carrying the top louvre 6 and the struck out portions being secured to the supports by rivets, screws or similar means 8. A double conical baffle 10 may be supported above the terminal by a cross member 11 hinged to tho top louvre 5 and detachably secured by a hook 13. The supports 1 are carried by a hollow cylindrical member 15 fitting in the chimney pot or ventilating shaft and having projections. 16 engaging its edge. The projections 16 may be apertured to receive a securing wire. Alternatively the supports 1 may be secured directly to the chimney pot.
Patent GB-847360-A (GB)
Title: Gas turbine power plant
IPC: F02C3/09
Filed: 1956-08-24
Abstract: 847,360. Gas-turbine plant. PAVLECKA, V. H. Aug. 24, 1956, No. 4655/60. Divided out of 847,359. Drawings to Specification. Class 110 (3).  The subject-matter of this Specification is identical with that described in Specification 847,359, but the claims are concerned with a gas-turbine plant comprising a centripetal compressor and a radially outward-flow turbine located on opposite sides of a combustion chamber and having a common axis therewith.
Patent GB-1150026-A (GB)
Title: Ground Effect Machines
Inventor: GUIENNE PAUL FRANCOIS
IPC: B60V1/06
Filed: 1967-01-31
Abstract: 1,150,026. Air cushion vehicles. BERTIN ET COMPAGNIE. 31 Jan., 1967 [1 Feb., 1966], No. 4675/67. Heading B7K. An air cushion vehicle has a primary cushion plenum chamber supplied with substantially the whole of the supply from an air pumping means and an outer endless wall surrounding the primary plenum chamber to form a compartment divided into at least two secondary plenum chambers and communicating means whereby the secondary plenum chambers may be fed with air from the primary chamber. A base platform 9 carries a skirt 6b forming a plenum chamber 2 to which air is pumped by a fan 3, an outer skirt 10b enclosing skirt 6b to form an annular cavity which is sub-divided by four small skirts 14 into four secondary plenum chambers 4a, 4b, 4c, 4d, the interiors of which are placed in communication with chamber 2 by ducts 16. Alternative embodiments disclose arrangements of two or three secondary plenum chambers and the sub-dividing means may be rigid or flexible walls which may be apertured or made porous instead of being provided with ducts such as 16. Alternatively the communicating means may include manually controlled valves whereby the pressures in different chambers may be controlled to enable the vehicle to be stabilized in roll and pitch.
Patent GB-1047646-A (GB)
Title: Improvements in or relating to forage wafering machines
IPC: B30B11/20
Filed: 1964-02-04
Abstract: 1,047,646. Wafering forage crops. DEERE & CO. Feb. 4, 1964 [Feb. 4, 1963], No. 4690/64. Heading A2B. A machine for wafering forage crops comprises means for feeding the crop into an annular series of die cells and a speed reducing arrangement incorporated into the feed means, preferably a planetary gear system. The machine, Fig. 1, supported by wheels 12, 14 moves to the left whereby pick-up means 20 and transfer roller 22 feed the harvested crops via rotary feed means 26 through an opening 30 in fixed cylinder 32, see also Fig. 20. Within cylinder 32 is rotating helix 104 which forces the crops to the left in Fig. 2 and so out of radial die slots formed by spacers 72 between annular plates 66, 68, see also Fig. 3. Passage of the material through the die slots is expedited by circular press wheel 80, which rolls eccentrically round the inner periphery formed by the inner ends of the spacers 72. The press wheel is mounted on axle 82 carried eccentrically in a pair of circular cheeks 86, 88, Fig. 2. All the rotating parts are belt driven direct from engine 42, but the press wheel 80 should preferably move round the spacers 72 at a lower speed, hence it is driven from pully shaft 46, Fig. 2 through a planetary reduction gear within housing 170, the housing being bolted to and transmitting the drive to cylinder 102 secured to cheek 88.
Patent GB-329029-A (GB)
Title: Improvements in valves, taps, cocks and the like
IPC: F16K27/06
Filed: 1929-02-12
Abstract: 329,029. Sample, L. Feb. 12, 1929. Plug cocks; materials, special. -A rotary hollow plug 1 of fused silica or like fused refractory material is shaped by moulding or otherwise with one or more recesses 3 forming passageways at the side or sides of the plug running at right angles' to its axis. After being moulded the plug only requires grinding into its seating.
Patent GB-990642-A (GB)
Title: Method of preparing polyesters
IPC: C08G63/78
Filed: 1962-02-07
Abstract: Polyethylene terephthalate is made by mixing 1 mol. of terephthalic acid with 2-15 mols. of ethylene glycol, removing excess ethylene glycol quickly by distillation until the molar ratio is not more than 1 : 1.9, effecting esterification of the ethylene glycol with the terephthalic acid under superatmospheric pressure and then polycondensing the resulting ester in vacuo. The reaction mixture may also include isophthalic acid, adipic acid, sebacic acid, o-, m-, or p-sulphobenzoic acid, diethylene glycol, a polyoxyethylene glycol or ethanolamine.  Suitable esterification catalysts are compounds of alkali metals, alkaline earth metals, Zn, Cd, Pb, Sb, Mn, Co, Fe, Ti, Zr or La (e.g. a mixture of cobaltous chloride and sodium hydroxide). A suitable polycondensation catalyst is antimony oxide which may be used in admixture with triphenyl phosphate.  Reaction may be effected by a batch or continuous process.  Specifications 776,202 and 777,628 are referred to.
Patent GB-1103390-A (GB)
Title: Improvements in pyrometric probes or rods
IPC: G01K1/08
Filed: 1967-01-31
Abstract: 1,103,390. Temperature sensitive resistors. CORECI COMPAGNIE DE REGULATION ET DE CONTROLE INDUSTRIEL. 31 Jan., 1967 [4 Feb., 1966], No. 4778/67. Heading H1K. A pyrometer probe consists of a conducting tube 8 within which a temperature-sensitive resistor 6 is embedded in insulating powder 10, the resistor being connected to the conductors 4 of a cable consisting of a like tube 2 within which the conductors are embedded in a like powdered insulant 3. The two tubes are joined, e.g. by welding, and the free end of the tube 8 is closed by a cover 11 (Fig. 5, not shown). The resistor may have a positive or negative temperature coefficient; the preferred form is a platinum wire laid in a spiral groove on a former of heat agglomerated aluminium oxide and covered with alumina cement. The insulating powder in both the cable and the resistor casing is preferably magnesium oxide. Fig. 4 shows the probe at an intermediate stage in manufacture; the cable conductors 4 have already been welded to the resistor leads 5 and the tube 2 to the tube 8, and magnesium oxide is being passed into the tube 8, which may be vibrated during the filling to compact the powder. When filled, the end of the tube will be sealed by a welded-on cover. Figs. 1 to 3 and 5 (not shown), depict the earlier and later stages of this manufacturing process.
Patent GB-958426-A (GB)
Title: Improved apparatus for cutting tubular material such as sheet metal piping
Inventor: MASON JAMES THOMAS
IPC: B23D21/02
Filed: 1962-02-07
Abstract: 958,426. Grinding. POTTERIES VENTILATING & HEATING CO. Ltd. May 6, 1963 [Feb. 7, 1962], No. 4790/62. Heading B3D. [Also in Division B5] Apparatus for cutting tubular material 22 comprises means 28 for supporting the material in a generally upwardly or horizontally extending direction and so that it can be tilted to various angles, and a rotary cutting device 28 mounted so as to be advanced into engagement with the material and to make a cutting traverse around it, whereby the material is cut at a required angle as determined by the angle at which it is supported. The supporting means 20 is determined by the size of the tubular material to be cut and secured to a spigot 18 extending from a clamp 17 adjustably mounted on a quadrant 16a between pillars 11 of a frame having a base 10 and a ring 12. An annular table 14 is supported and guided by rollers on the ring 12 and is formed with guides 23 for a carriage 24 which is movable by a hand wheel 25 and screw 26 and carries a motor 27 connected by a belt-drive 29 to a shaft 32 carrying the cutting device 28 comprising a high speed friction cutting wheel. The table is rotatable relative to the ring 12 by a friction wheel 35 which engages a curtain 36 secured to the table and is driven by reduction gearing 41 from a motor, the wheel being movable about a universal joint 42 into and out of engagement with the curtain by a foot pedal. In operation, the tubular material, which may be sheet metal piping as used in air conditioning equipment, is secured by a clamp 25 to the support 20 and the clamp 17 adjusted to the desired angular position. The cutting device 28 is then advanced radially into the material and the friction wheel 35 engaged with the curtain to rotate the table 14 and device 28 around the material. The Provisional Specification refers to the cutting device as being an abrasive wheel.
Patent GB-564861-A (GB)
Title: Improvements in or relating to aircraft flap controls
IPC: B64C9/20
Filed: 1943-03-24
Abstract: 564,861. Controlling aircraft. LUCIEN, R. March 24, 1943, No. 4798. [Class 4] An aeroplane is fitted, inboard of the ailerons with landing flaps each comprising two parts 22, 23 which normally complete the contour of the wing. For landing they are turned into the position shown, but the parts 22 are movable independently of the parts 23 to control the lateral balance of the aeroplane at low speeds. The parts 22 also can be turned upwards across the airstream to act as air brakes.
Patent GB-355211-A (GB)
Title: Improvements in the separation or concentration of solid substances by flotation
IPC: B03D1/24
Filed: 1930-02-13
Abstract: 355,211. Concentrating ores. ELI•, A. D. J., Tananarive, Madagascar. Feb. 13, 1930, No. 4870. Convention date, March 29, 1929. [Class 82 (ii).] In concentrating ores, e.g. graphite, by flotation an emulsion is formed of gas, e.g. air, water or other liquid and a foaming agent, e.g. cresol, turpentine, tar or gasoline, and the emulsion is brought into contact with the ore pulp, which has been previously mixed with a selective agent, e.g. oil, in such a manner that a froth is formed without mechanical agitation. In an elongated vessel 1 is provided a liquidtight cylinder 8 with conical bottom 15 and top 10. The ore mixed with selective agent is introduced through a funnel 12 and passes down a channel 14 formed between the top 10 of the cylinder 8 and a conical extension 13 of the funnel into the annular space 9 between the vessel 1 and the cylinder 8 which constitutes an emulsion chamber, the emulsion containing the foaming agent being introduced into the bottom of the space 9 through a channel 40 formed by a conical baffle 25. The emulsion chamber 9 may be provided with projections or baffles 9a. The froth rises out of the space 9, is deflected inwards by a baffle 22, passes over the top of the baffle into the space 24 and is collected in an inclined trough 6. Liquid may be introduced into the space 23 below the baffle 22 to cause the overflow of the froth, or the froth may be removed by mechanical means, an overflow pipe 29 being provided. The tailings and the degasefied emulsion pass down from the space 9 through a passage 41 between the baffle 25 and a coaxial conical baffle 26 into a settling compartment and thence through an annular space 28 between the vessel 1 and the edge of an inverted conical hood 27 to a discharge outlet. Liquid or steam may be supplied through a pipe 3 to assist the evacuation of the tailings. The degasefied emulsion is withdrawn by suction through a pipe 19 opening under the hood 27 and passes to a pump 18 where it is again mixed with air or other gas and passed to the emulsion chamber through a pipe 17 opening in the channel 40. The pump is provided with a feed tube 20 for foaming agent and air and may have an additional tube 21 if compressed air or a gas other than air is used for the emulsion. In a modification, Fig. 3, the emulsion is made in the settling chamber. Compressed air or gas is supplied by a pipe 33 to a nozzle 34 and draws liquid containing foaming agent up a tube 31 surrounding the nozzle 34 and opening into the channel 40. Additional foaming agent may be supplied through a pipe 30. Several apparatus may be arranged in series, the froth from the first concentration being fed to the second apparatus and so on and, when the external emulsifying pump 18 is used, several separating vessels may be arranged round a common pump.
Patent GB-995434-A (GB)
Title: Improved process for the reduction of non-titaniferous iron ores
Inventor: REED GEORGE GUERNARD
IPC: C21B13/00
Filed: 1962-02-08
Abstract: In the reduction of non-titaniferous iron ores there is incorporated with the ore 0.5-5.0% by weight thereof of one or more of the carbonates, hydroxides, chlorides or oxides of sodium and potassium, or of inorganic salts thereof which on heating decompose to yield the oxide and, without intermediate roasting, reducing the treated ore with a carbonaceous reducing agent at a temperature below that at which agglomeration occurs.  The product is comminuted and iron separated by conventional methods.  The addition agent may be added in the form of an aqueous solution, while the treated ore, which may be palletized, is preferably reduced in a rotary kiln. Specifications 803,008 and 882,324 are referred to.
Patent GB-1172312-A (GB)
Title: Control Device for Tapped Transformers
IPC: H01F29/04
Filed: 1967-02-01
Abstract: 1,172,312. Transformers. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 1 Feb., 1967 [2 Feb., 1966], No. 4934/67. Heading H1T. A tap-changing circuit for transformers comprises tap selector switches 2, 3 connected to contacts 4, 5 and 11, 12 of switches 6, 10, respectively, in parallel, an impedance 8 being included in the circuit between switch 6 and the neutral point 9 and a vacuum switch 13 being included in the circuit between switch 10 and the neutral point. 9. Initially the switches are in the positions shown in Fig. 1. To change from tap 2 to tap 3 contact 7 of the first changeover switch is connected to contact 5. Vacuum switch 13 is then opened so that the load current flows to the common point via impedance 8. Changeover switch 10 is now actuated to connect with contact 12. Finally vacuum switch 13 is closed again to give direct connection from tap 3 to common point 9. For higher switching powers more than one vacuum switch may be used in circuit. The changeover switches may be actuated mechanically or pneumatically, and the vacuum switch may alternatively be actuated electromagnetically when the magnet winding may be used as the impedance 8 in place of a resistor.
Patent GB-588537-A (GB)
Title: Improvements in or relating to erecting devices for gyroscopic apparatus
IPC: G01C19/44
Filed: 1945-02-27
Abstract: 588,537. Gyroscopic apparatus. SMITH & SONS (ENGLAND), Ltd., S., and WATSON, W. E. Feb. 27, 1945, No. 4943. [Class 97 (iii)] Relates to erecting devices of the air jet and pendulous shutter type. A block 10 secured to the rotor casing has one or more downwardly extending air conduits 15, 16 feeding a chamber 22 with pairs of oppositely directed air jet orifices 25 and is provided with crosspassages 13, 14, through which extend yokes 35 interconnecting the shutters 37 of each pair. As shown, the two yokes 35 carry pivot spindles 43 engaging jewel bearings 45 and are recessed at 36 so as to rest together without restricting swinging movement. The shutter blades 37 are roughly triangular in shape so that a corner may be filed away as required for balancing and are located on the yokes 35 by dowel pins 38 and secured by screws 39. Buffers 50 made of nylon bristles may be provided on the yokes. A number of holes 32, which may be closed at will by adjusting the plate 33, are provided in the bottom of the chamber 22.
Patent GB-583257-A (GB)
Title: Means for safely launching a pilot or other occupant escaping from an aeroplane in flight
IPC: B64D25/10
Filed: 1945-02-28
Abstract: 583,257. Pilot escape apparatus. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Feb. 28, 1945, No. 4978. [Class 4] Means for launching a pilot escaping from a plane in flight comprise a seat or platform sliding on guides directed towards the opening of a cockpit or escape hatch and an impeller unit acting under fluid pressure supplied by explosive cartridges to launch the seat or platform from the plane. The seat 6, Fig. 8, is carried by a tubular frame secured to a strong U-shaped back frame 10 slidably mounted by rollers 14 on a guide frame 11, which is pivotally secured to the plane by fixed brackets 12 and carries within it the impeller unit 20 secured at its top through the cartridge-firing chamber 28 to the arch of the frame 10. There is provided a face-screen, which may be flexible and unwound for use from a roller with handles 9a, the movement of the screen serving to release thecartridge firing-pin. The impeller unit, shown separately in Fig. 9, comprises a fixed tube 21 containing a sliding tube 22 at the top of which is mounted the cartridge firing chamber 28. Modifications are described, which include provision for firing supplementary charges and for tilting the seat backwardly before launching.
Patent GB-1429081-A (GB)
Title: 15-deoxy and 11,15-bisdeoxy prostaglandin derivatives
IPC: C07C405/00
Filed: 1973-02-01
Abstract: 1429081 Prostaglandins; organometallic compounds G D SEARLE & CO 1 Feb 1973 [3 Feb 1972] 4998/73 Headings C2C and C2J Novel prostaglandins of the Formula I: wherein X is CH 2  or C(OR<SP>2</SP>)H, wherein R<SP>2</SP> is H or C 1-7  alkanoyl, R is H or C 1-7  alkyl, Z is vinylene or ethynylene, m is 6 or 7, n is 3, 4 or 5, and the wavy lines represent the alternative  alpha or beta configuration or the epimeric mixture; provided that when X is CH 2 , then Z is -C#C-, are prepared by reacting cyclopentene derivatives of the Formula II: wherein Y is >CH 2  or >C(OR<SP>3</SP>)H, wherein R<SP>3</SP> is H, C 1-7  alkenoyl or 2-tetrahydropyranyl, and R<SP>3</SP> is H, C 1-7  alkyl or 2-tetrahydropyranyl with compounds of the formulµ and, if necessary, hydrolysing the resulting compounds of Formula I in which R<SP>2</SP> and/or R are 2-tetrahydropyranyl. Optically active methyl 3-hydroxy-5-oxocyclopent-1-eneheptanoate is obtained by hydrolysing the corresponding methyl 3-hydroxy-5-[(1-carboxy - 3 - methybutyl)oxyimino]cyclopent- 1- eneheptanoate, resulting from the chromatography of the mixture obtained by reacting 2(S)-aminooxy-4-methylvaleric acid and racemic methyl 3-hydroxy-5-oxocyclopent-1-eneheptenoate, which is prepared by esterifying the corresponding acid. The trans-1-alkenyl copper compounds of the formula CH 3 (CH 2 ) n CH=CH-Cu are prepared by the addition of cuprous iodide to a solution of the corresponding trans-1-alkenyl magnesium chlorides, obtained by contacting magnesium, activated with mercuric chloride, with trans-1- alkenyl mercuric chloride, which is obtained by contacting the corresponding 1-alkynes with catechol borane and treating the product with mercuric chloride. The cis-1-alkenyl copper compounds are obtained by treating the appropriate cis-1- alkenyl bromides successively with lithium and cuprous iodide. The trialkynyl aluminium compounds are prepared by treating the appropriate 1-alkyne with butyl lithium and then with aluminium chloride.
Patent GB-550099-A (GB)
Title: Process for the production of ketones
IPC: C07C45/65
Filed: 1941-04-18
Abstract: 550,099. Ketones. WEIZMANN, C. April 18, 1941, No. 5056. [Class 2 (iii)] Unsaturated ketones are made from ketones having half the number of carbon atoms by effecting the following reactions where R<SP>1</SP> is alkyl, R<SP>2</SP> is alkyl or hydrogen and X is chlorine or bromine, the second reaction being effected in the presence of iodine. The halogenated ketone produced in the first reaction need not be isolated. Any hydroxyketone formed as a by-product in the first reaction is dehydrated by the iodine treatment to give the same unsaturated ketone. Two examples describe the conversion of methylethyl ketone into 3-4 dimethyl hexene-3-one-2 using hydrochloric acid as the halogen acid.
Patent GB-1489147-A (GB)
Title: Device for sensing the level of coal charged into a coke oven
IPC: C10B31/00
Filed: 1976-02-10
Abstract: 1489147 Detecting charge levels BERGWERKSVERBAND GmbH and DIDIER ENG GmbH 10 Feb 1976 [8 March 1975] 05068/76 Heading F4B [Also in Division G1] In a device for indicating the charge level in a coke oven by detecting an increase in pressure in a gas flow in a tube having an opening at a desired level in the oven, a gas supply tube 3 is connected to a gas return tube 1 through holes 5, and the change in pressure due to blockage at the open end of an extension la of the return tube 1 detected. A pressure equalizing tube 2 adjacent the supply and return tubes with its open end above the desired level may be connected to the other side of the detector. The tube 1 may form the gas supply tube, the gas flow returning through the tube 3, or both tubes may be open at the furnace end and have the same length. The arrangement avoids false indications due to a surge of gas when the detector is switched on, or due to the heat of the oven. A pressure sensitive switch connected to at least one device may control the coal conveyer plant.
Patent GB-695314-A (GB)
Title: Improvements in the production of neutral inorganic esters of polyglycol ethers
IPC: C07C305/10
Filed: 1951-03-02
Abstract: Condensation products (esters) are made by heating about 2 mols. of polyglycol ethers of formula A-(OC2H4)n-B, wherein A is an aliphatic, cycloaliphatic, aromatic or heterocyclic radicle of 3-23 C atoms, B is OH or OMe (Me representing an alkali metal) and n is not more than 2, with one mol. of a dibasic inorganic acid which does not contain carbon, or a halide thereof, or by heating about 2 mols. of a compound of the above formula wherein A and n are as stated but B is halogen, -OSO3H or -OSO3Me (Me being a metal atom) with one mol. of an alkali metal sulphide. Polyglycol ethers specified are propyl- and amyl-hexaglycol ether, dodecylnonaglycol ether, octadecyldecaglycol ether, oleyldodecaglycol ether, lauric acid octaglycol ether, butyric acid ethanolamide decaglycol ether, palmitylaminononaglycol ether, cyclohexanolhexaglycol ether, phenolpentaglycol ether, hexylpeptylnaphtholdecaglycol ether, benzoic acid octaglycol ether, salicylic acid pentaglycol ether, furfurylpentadecaglycol ether and pyridine carboxylic acid octaglycol ether.  Symmetrical or mixed esters may be obtained.  They are wetting and dispersing agents and some are anaesthetics.  In examples: (1) dodecylnonaglycol ether is treated with sulphuryl chloride in benzene to yield di-dodecylnonaglycol sulphate, and (2) dodecylnonaglycol bromide is heated under pressure with sodium sulphide in aqueous methanol to yield di-dodecylnonaglycol thioether.