baber/WOPTO huggingface dataset:
Patent GB-1411203-A (GB)
Title: Using gas turbines to generate electricity from any waste combustible materials to overcome the energy crisis
IPC: F02C3/10
Filed: 1974-01-23
Abstract: 1411203 Turbine locomotives A P PEDRICK 23 Jan 1974 03159/74 Heading B7L [Also in Division F1] Electricity is generated using two large turbofan gas turbine engines which pass gas including unburnt air via respective tubes to an underground combustion chamber 2. Rubbish, coal, coke, or paper is passed via shoots on to grids in the chamber where it is burnt, the gas passing therethrough to a gas turbine 5 driving a generator 3 connected to an electricity grid. A similar arrangement is applied to ships (Fig. 9) not shown, aircraft (Figs. 11-20) not shown, or railway engines (Fig. 10).
Patent GB-751873-A (GB)
Title: Reduction of 1:5-dinitro-naphthalene
Filed: 1954-02-03
Abstract: A method of reducing 1,5-dinitronaphthalene comprises dissolving the 1,5-dinitronaphthalene in a mixture of water and tetrahydrofuran or ethylene glycol dimethyl ether, adding a filterable reducing agent (as hereinbefore defined) to the mixture, heating to reduce the 1,5-dinitronaphthalene while it is dissolved in said mixture and separating 1,5-diaminonaphthalene from said mixture.  A "filterable reducing agent" is defined as one enabling the desired product to be obtained free from the agent by filtering if necessary, and evaporating off the tetrahydrofurane or ethylene glycol dimethyl ether.  Reducing agents specified are a mixture of iron powder and ferrous sulphate, ammonium sulphide and ferrous sulphate and ammonia. An example is furnished in which a mixture of tetrahydrofurane and water is employed as solvent for the 1,5-dinitronaphthalene and a mixture of iron powder and ferrous sulphate as the reducing agent.
Patent GB-921769-A (GB)
Title: Improvements in electric variable resistors
Inventor: PATCHING JOHN
IPC: H01C10/20
Filed: 1959-01-29
Abstract: 921,769. Stereophonic systems. PYE Ltd. Jan. 29, 1960 [Jan. 29, 1959], No. 3213/59. Drawings to Specification. Class 40 (4). [Also in Groups XXIV and XXXVI] The two channels of a stereophonic sound amplifier system are adjusted by two ganged potentiometers, one included in each channel, and the wiper contact of one of which can be disengaged from their common spindle (see Group XXXVI). The ganged pair are rotated to adjust one channel, that potentiometer wiper contact corresponding to the adjusted channel is then disengaged and the other rotated to obtain the desired balance, whereupon they are again ganged to retain the balance during further adjustment.
Patent GB-112693-A (GB)
Title: Improvements in the Manufacturing of Foundation Bands for Solid Rubber Tyres.
IPC: B21D41/02
Filed: 1917-03-05
Abstract: 112,693. Henley's Telegraph Works Co., W. T., and Traxler, J. March 5, 1917. Expanding and stretching; bending dies and formers.-Foundation bands for wheel tyres are brought to the required internal diameter by placing heated over a contractible block or mandrel and allowing them to cool. The block or mandrel consists of segments a. provided with recesses j for cooling water, and formed with tapered internal surfaces to engage a plug d which is provided with a screwed spindle c. The segments a are provided with guide-pins g engaging radial slots in the bed plate.
Patent GB-1333542-A (GB)
Title: Laser energized plasma source
IPC: H05H1/22
Filed: 1972-01-24
Abstract: 1333542 Lasers UNITED STATES ATOMIC ENERGY COMMISSION 24 Jan 1972 [8 Feb 1971] 3236/72 Heading H1C [Also in Division G6]  Pellets of hydrogen, deuterium or tritium are allowed to fall under gravity, from a dispenser 10, to be converted into a plasma by radiation from a laser 18. The latter is fired when the pellet is at the focus 15 of a laser-optical system which employs a steady-state laser 19 to illuminate the pellet as it falls in order to facilitate pellet detection. Laser radiation scattered from the pellet when it is at a point 25 above focus 15 is detected by photo multiplier 28 which triggers a laser-pumping circuit 30. Radiation scattered from a pellet when at focus 15 is detected by photo multiplier 33 which triggers a laserfiring circuit 35.
Patent GB-376285-A (GB)
Title: Improvements in transmission gearings
IPC: H02K51/00
Filed: 1931-02-02
Abstract: 376,285. Systems for transmitting mechanical power. KRISTOFFERSEN, O., 34, Sorgenfrigate, Oslo, Norway. Feb. 2, 1931, No. 3259. Convention date, Feb. 3, 1930. [Class 38 (iv).] A transmission gear includes a planetary gear 22, 23, driven from the driving shaft 4 through a clutch member 6 and a housing 13, and distributing the torque between the load shaft 57, through a gear 61, and the shaft 27 of a dynamo element 51, through a gear 24, the transmission ratio of the latter gearing being more than twice that of the former. The load shaft carries the second element of the dynamo. The core members may be conical and axial movement of the shaft 27 to vary the air gap and the transmission characteristics may be obtained by a hand-lever or foot pedal (not shown). The gear is operated by a hand-lever 46 which actuates a clutch member 34 to a position free of the clutch member 6 which is then disengaged from the member 5 by springs 7. Movement of the lever 46 towards the position shown in the Figure first engages the clutch members 5, 6 for forward driving, and when the position shown is reached the gear is locked for solid drive. Movement of the lever 46 in the reverse direction engages clutch members 34, 36 for reverse driving, a brake band 50 being merely engaged with the housing 13 to hold the planet gear stationary. In a modification a free-wheel clutch is arranged between the shafts 27, 57. The clutch member 34 may be omitted when the transmission is to be always operative.
Patent GB-511131-A (GB)
Title: Improvements in and relating to variable speed transmission gears
IPC: F16H33/02
Filed: 1938-02-02
Abstract: 511,131. Transmitting mechanical power. MOTTET, R. H. Feb. 2, 1938, No. 3311. Convention date, Feb. 2, 1937. [Class 38 (iv)] Equalizing load.-In variable speed transmission from a prime mover to a driven member, power is transmitted either directly or indirectly or both, preferably through epicyclic gearing, the indirect transmission being through a reversible electrical motor generator group having a flywheel for storing energy. The shaft 1 of a turbine 20 drives the shafts 2, 3 through epicyclic gearing 4, the shaft 2 being adapted to drive an axle 21 of a vehicle in either direction. Shaft 3 carries a reversible electrical element 5, connected to flywheel 6. The turbine drives an exciter 7 which energises the fields of the element 5 and the motor 14 on axle 22 through resistance 8 with operating arm 15, the setting of which determines the speed of the vehicle. The shaft 3 may be held by a brake. The flywheel 6 stores up energy ready for starting the vehicle, and during retardation, and gives it up as required. The turbine is controlled through linkwork by its own governor 9, winding 12 in the circuit of motor 14, and governor 10 dependent upon vehicle speed.
Patent GB-692224-A (GB)
Title: A method of supporting an electric lamp
Inventor: WOOD CHARLES WILLIAM
IPC: F21V19/00
Filed: 1951-02-12
Abstract: 692,224. Lamp-holders. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 15, 1951 [Feb. 12, 1951], No. 3370/51. Class 38 (i). [Also in Group XI] A lamp - holder adapted to be supported from a plate 8 comprises an insulating sleeve 1 carrying a lamp socket 2 and provided with co - planar external grooves 6 in which the edges of a slot 7 in the supporting plate 8 are slidably engaged. The sleeve 1 and the slot 7 are of rectangular section. Tabs 9 on the plate are bent into recesses at the ends of the grooves to retain the sleeve against outward movement. A ring 3 on the lamp socket 2 engages in an annular internal groove 4 in the sleeve. The sleeve is made of elastic material.
Patent GB-720674-A (GB)
Title: Improvements in or relating to harrows
IPC: A01B19/08
Filed: 1953-02-06
Abstract: 720,674. Agricultural implements. DILLON, F. G. Feb. 6, 1953. [Feb. 13, 1952] No. 3391/53. Class 6 (1). A harrow comprises transverse members 1 provided with end extensions formed as downwardly extending teeth 2 and links 3 each formed with a closed loop at each end one loop 4 being in the horizontal plane and the other loop 7 being in the vertical plane, each horizontal loop acting as a stop for the transverse members engaged on the link and each vertical loop being pivotally connected to the horizontal (not shown) loop of an adjacent link. Front links 3<SP>1</SP> are connected by hooks 8 to a draw bar 9 or swingle-tree for attachment to a tractor.
Patent GB-1194806-A (GB)
Title: Improvements in or relating to Sieves
Inventor: WEDELL-WEDELLSBORG OVE JOACHIM
IPC: B07B1/46
Filed: 1968-01-23
Abstract: 1,194,806. Dressing-apparatus. O. J. WEDELL-WEDELLSBORG. 23 Jan., 1968, No. 3403/68. Heading A1F. In a chaffer sieve for combines the area of each of the holes in the rear half of the outer rows at both sides of the sieve are larger than and preferably at least twice the area of each hole in the rest of the sieve.
Patent GB-576287-A (GB)
Title: Improvements in and relating to spraying devices
IPC: B05B1/16
Filed: 1944-02-24
Abstract: 576,287. Spraying apparatus. ROSS, L.P. Feb. 24, 1944, No. 3434. [Class 69 (iii)] A spraying head is provided with a row, say of 3 nozzles, e.g. for spraying low trees, and with another row, say of two nozzles, for high trees, which latter are brought into action when the ball valve 14 of the 3-row nozzles cuts off the liquid supply to these nozzles and vice versa. The 3-row nozzles are supplied direct from the chamber 8 through apertures 13, sleeves 11, on top of which are swirl plates 5, jet plates 6 all clamped down by screw caps 9. The 2-row nozzles on the conduits 18 are supplied from passages 19 leading to conduits 15 of two of the 3-row nozzles only when the ball valves 14 are closed on their seats 11, such closing being effected by temporarily turning off the main supply from the lance 10 and inverting the head 8 so that the balls fall down on seats 11, and then turning on the pressure fluid which maintains the balls on these seats. In a modification, Fig. 4, the ball valves are mounted in a valve spindle with an external turning pin 29 for hand operation to supply the desired nozzles with pressure liquid.
Patent GB-587876-A (GB)
Title: Improvements relating to systems for obstacle detection by means of electromagnetic waves
IPC: G01S13/10
Filed: 1941-03-14
Abstract: 587,876. Radiolocation. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. March 14, 1941, No. 3488. [Class 40 (v)] In a system of obstacle detection by means of reflected pulses, the received waves are combined with the transmitted waves passed via a second transmission path. A transmitter T, Fig. 1, sends out pulses of mean highfrequency F, and these are received as reflections in the receiver R. A frequency changer FC1, supplied from an oscillator O1 at a frequency FŒf, converts the pulses of the train to pulses of a mean intermediate frequency f. After amplification in an intermediate frequency amplifier IFA, the reflected signals are applied to a balanced detector DET comprising two rectifiers R1, R2. Direct current from the output B is applied to the Y plates of a cathode - ray indicator, the X plates of which are fed from a time base of pulse recurrence frequency. Transmitted pulses are also applied to a frequency changer FC2, which is also fed from the oscillator O1 of frequency FŒf, and the pulses of the transmitted pulse train are converted to pulses of a mean high-frequency f. An adjustable delay network DEL is inserted before application of the pulse train to the balanced detector DET. The output from DEL serves as a marking signal which can be timed to coincide on the cathode-ray indicator with any particular echo. The differential output A from the detector .DET provides a D.C. output corresponding to this echo signal and is reinforced by each pulse of the reflection selected from DEL. This cumulative output A may be used for directional analysis of the obstacle to which it corresponds. In a modification, Fig. 2, discrimination is effected against all obstacles except the one which is not only at the selected range but which has also a particular relative velocity with respect to the detecting apparatus. The frequency of the pulses of the received signal pulse train is transformed in the frequency changer FC1 by oscillations from the oscillator O1 to a mean high-frequency of f1, and the frequency of the pulses of the locally generated comparison pulse in FC2 by oscillations from 02 to a frequency of f2. The two pulse trains are combined in a modulator M and a filter X passing frequency #1 - f2 selects a particular echo determined by the adjustment of DEL. A moving obstacle causes the received pulses to differ in mean high-frequency from the transmitted pulses, owing to the Doppler effect, by a frequency #. Such an obstacle produces a pulse train of frequency fIŒ# in the intermediate frequency amplifier IFA, and the output from M is at f1Œ#-f2. Thus, by setting the output filter to this frequency, discrimination is provided against all obstacles except the one having a particular velocity with respect to the detecting apparatus. The transmitted pulses may be repetitive at substantially equal intervals of time, or they may be single pulses or pulses at random intervals. Specification 586,115 is referred to.
Patent GB-138434-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1919-02-14
Abstract: 138,434. Ward, T. E. Feb. 14, 1919. Tobacco pipes.-A clay pipe a, inserted in a briar casing B with a hinged front, extends nearly to the end of the mouthpiece C, and a narrow packing-ring E is inserted betwcen the stems to prevent the passage of air. Specification 1229/87 is referred to.
Patent GB-139579-A (GB)
Title: Improvements in two-stroke internal combustion engines
IPC: F01L5/04
Filed: 1919-02-14
Abstract: 139,579. Hoffman, F. C. Feb. 14, 1919. Regulating.-In an engine having oppositelymoving pistons which compress air and combustible mixture in the crank casing and the closed end of the cylinder respectively, governing is effected by raturning, during the compression strokes, portions of the charges to the pump space above the piston 9. The charges are returned through a port 23 and a trransfer passage 5<b>, the port being controlled by an adjustable sleevo, 15 in which reciprocates a piston valve 14,
Patent GB-658863-A (GB)
Title: Improvements in and relating to the preparation of catalysts
IPC: B01J25/00
Filed: 1949-02-10
Abstract: A foraminate copper-nickel-aluminium catalyst for the hydrogenation of olefines, diolefines and acetylenes is prepared by treating pieces of a copper-nickel-aluminium alloy containing 40-60 per cent aluminium with aqueous caustic alkali to extract part, preferably not more than 70 per cent, of the aluminium. Extraction temperatures of atmospheric to 100 DEG  C. may be employed and the aqueous alkali, e.g. caustic soda, is preferably passed over the pieces of alloy at a space velocity greater than 10.  The extracted alloy is finally washed with water.  The catalyst may be reactivated by further treatment with aqueous alkali.
Patent GB-744765-A (GB)
Title: Process for the preparation of 5-benzyloxyindoles
IPC: C07D209/08
Filed: 1953-02-10
Abstract: 5-Benzyloxyindoles of the formula <FORM:0744765/IV(a)/1> in which X is phenyl, lower alkyl or alkoxyphenyl, or halophenyl, Y is hydrogen or as for X, and R is hydrogen or lower alkyl, are prepared by reductively cyclizing a 5-benzyloxy-b ,2-dinitrostyrene by reacting it with powdered iron in an aliphatic acid medium.  The 5-benzyloxy - b ,2 - dinitrostyrene may be prepared by the processes described in Specifications 720,584 and 728,013.  Suitable organic acids for use in the reduction process are acetic, propionic and butyric acids, and a solvent such as a lower alkanol may be present.  In example (1), 5-benzyloxy-b ,2-dinitrostyrene is treated with iron powder and acetic acid in ethanol until the colour had changed from deep red to grey-green, filtered, the filtrate poured into water, extracted with ether, the ether solution evaporated and the residue dissolved in tetrahydrofuran and decolourized with charcoal in the presence of methylcyclohexane.  On filtering and crystallizing, 5-benzyloxyindole is obtained.  Other examples describe the preparation of (2) 5-benzyloxy-2-methylindole from 5-benzyloxy - b ,2 - dinitro - b  - methylstyrene; (3) 5 - (p,p1 - dimethylbenzhydryloxy) - indole from 5 - (p,p1 - dimethylbenzyhydryloxy) - b ,2-dinitrostyrene; (4) 5 - (p,p1 - dimethoxybenzhydryloxy) - indole from 5 - (p,p1 - dimethoxybenzhydryloxy - b ,2 - dinitrostyrene; (5) 5 - benzhydryloxyindole from 5 - benzhydryloxy - b ,2 - dinitrostyrene; and (6) 5-(p,p1 - dichlorobenzhydryloxy) - indole from 5-(p,p1 - dichlorobenzhydryloxy) - b ,2 - dinitrostyrene.  Many other compounds are listed which are prepared by analogous processes.
Patent GB-290353-A (GB)
Title: Doubled or twisted yarn for use in the production of woven fabrics, hosiery and other fabrics
IPC: D02G3/38
Filed: 1927-02-10
Abstract: 290,353. Boller, A. Feb. 10, 1927. Yarns. - A double yarn for the production of woven fabrics, hosiery, and other fabrics, particularly for use with crepe fabrics, comprises one or more left-hand twisted crepe threads, one or more right-hand twisted crepe threads, and one or more loosely twisted threads, either all twisted together or arranged with the loosely twisted thread 3 coiled around the crepe threads as shown. Silk, schappe, artificial silk, wool and cotton may be used separately or together for the crepe threads, and the loosely twisted threads mav be of the same or of different material. With this yarn crepe fabrics may be produced on all types of looms, including one shuttle looms, care only being required to maintain the tension regular.
Patent GB-1033494-A (GB)
Title: Herbicidal composition
IPC: A01N55/02
Filed: 1965-01-28
Abstract: A herbicidal composition comprises hexafluoroarsenic acid or a hexafluoroarsenate salt and a solid or liquid carrier.  The composition may additionally contain a wetting agent.  The hexafluoroarsenate may be of the formula M(AsF6)n where M is hydrogen, an alkali metal, an alkaline earth metal, or an ammonium or substituted ammonium radical, and n is the valency of M.
Patent GB-1269192-A (GB)
Title: Electrical signal filter circuits
Inventor: DANBY PHILIP CHARLES GABRIEL
IPC: H03H11/12
Filed: 1970-01-27
Abstract: 1,269,192. Active filters. BROOKDEAL ELECTRONICS Ltd. 12 Jan., 1971 [27 Jan., 1970], No. 3863/70. Heading H3U. A signal filter comprises: a first signal path including a series resistor R1 followed by a pair of shunt paths each including a capacitor C1 or C2 and a switch S1 or S2 for switching the paths alternately; and a second path including a series resistor R2 equal in magnitude to R1, and a shunt capacitor C3 equal in magnitude to the sum C1 + C2; means for applying an input signal to both paths; and means for combining the output signals from both paths. The input signal may be applied to both paths in parallel and the outputs combined in antiphase by a differential amplifier 5, or alternatively the input may be applied in antiphase to the two paths and their outputs additively combined. The result in either case is to cancel out the D.C. and low frequency components of the signal.
Patent GB-557618-A (GB)
Title: Process for improving glyceride oils
IPC: C11C3/12
Filed: 1942-03-25
Abstract: 557,618. Catalytic hydrogenation. LEVER BROS. & UNILEVER, Ltd. March 25, 1942, No. 3944. Convention date. March 31, 1941. [Class 1 (i)] Glyceride oils are improved by hydrogenating in presence of a composite oxide catalyst comprising one or more of the metals copper, silver. gold, zinc, cadmium, mercury, one or more of the metals vanadium, columbium, tantalum, protoactinium, chromium, molylbdenum. tungsten, uranium, and oxygen. The oxides may be merely admixed with one another or chemically combined; and the catalyst may be stabilised by addition of an alkaline earth metal. The oil is treated at 130-250‹C., preferably about 200‹C., and pressures of for example 100 atmospheres may be employed. The amount of catalyst may be 0.1-0.5 per cent, and the duration of treatment up to 30 or 60 minutes. The treatment may be followed by a further hydrogenation under more effective hardening conditions. Examples relate to soya bean and cottonseed oils.
Patent GB-1419949-A (GB)
Title: Container filling machines
IPC: B67C3/28
Filed: 1972-01-27
Abstract: 1419949 Filling machines UNIGATE Ltd 25 Jan 1973 [27 Jan 1972] 3949/72 Heading B8T In a container filling machine, a faulty container detection device gives a signal that limits the full rise of a pedestal carrying a container and prevents it from being filled. A re-set mechanism enables following satisfactory containers to be filled normally. Containers 20 from a conveyer 6 are fed to a star wheel 7 and pass through a photoelectric scanner 9, 10 which detects dirty or reject containers, then on to pedestals 2 mounted on a plate 1 of a container filling wheel. The pedestals 2, above which are filling heads, are free to rise and fall under cam 19 and roller 18 action, and each consists of a tube 16 slidable on a rigid column 12. Column 12 and tube 16 are sprung apart by spring 14. A stub axle 17 carrying a roller 18 is attached to tube 16, the roller bearing against a cam track 19 as plate 1 revolves. A plunger 21 is also carried on tube 16, free to move in and out of slot 22 machined in the face of column 12. In response to a fault signal from the detection device, push rod 23, mounted on the frame, moves into the path of plunger 21, forcing it into slot 22 and thus preventing the tube 16 carrying the faulty container from rising to the level at which the feed control mechanism will operate. As the plate 1 revolves, plunger 21 is moved into the path of valve 24 which removes it from slot 22, and the pedestal resumes normal operation. An embodiment, Figs. 4, 5 (not shown), applicable to both new and modified filling machines, includes a sliding sleeve (31) friction filled to tube 16 and carrying a further roller (36) running on a second cam track (38) parallel to track 19, the push rod 23 again preventing pedestal rise in the event of a faulty container by closing a gap (41) in track (38) thus limiting the rise of the pedestal. An alternative container restraining construction, Figs. 6, 7 (not shown) has a yoke (47) attached to each filler head which, in the event of a faulty contour signal, is moved into the path of the container/or pedestal by means of a push rod (49).