baber/WOPTO huggingface dataset:
Patent GB-961752-A (GB)
Title: Flight path control system
IPC: G01S1/02
Filed: 1962-07-02
Abstract: 961,752. Flight path control systems. T. F. K. EDMISON. July 2, 1962 [July 5, 1961], No. 25274/62. Heading H4U. A flight path control system is characterized by a pair of elongated loops extending along and beyond the sides of the landing strip, said loops being individually rotatable about their respective longitudinal axes such that the lateral inclination of each loop to the ground varies along the length of the loop. This system is adapted to give flight path information in the final stages of touch down, use having been made of ILS or other systems for initial approach. The loops A and B (shown as 10, 11, in Fig. 2), are constructed in sections which are rotatably adjusted relative to each other to give the desired orientation to determine the flight path 23 by a series of " double null " positions 21, 21a... when the loops are respectively energized by A.C. of different low frequencies f1 and f2. Pick-up means in the aircraft comprises a horizontally stabilized loop in which is induced voltages ea and eb from loops A and B respectively, and a vertically stabilized loop for providing a constant polarity reference signal obtained on energizing both loops A and B in phase quadrature by a further higher frequency f3, amplitude modulated by both f1 and f2. In the information analysing circuit (Fig. 9) the output from vertical loop 39 is fed via filter 40, which passes only f3 and its modulation components, to detector 41 which separates f1 and f2 from f3 and then frequencies f1 and f2 are passed through filters 42 and 43 respectively to a pair of detectors 44 and 45. The output from horizontal loop 38 is fed via filter 40 which passes f1 and f2 but blocks f3 to detectors 44 and 45. Detector 44 provides an output proportional to + ea while detector 45 provides two outputs proportional respectively to +eb and - eb. These three signals are applied to summing circuit 47 providing two outputs proportional respectively to (ea+eb) and (eaeb). These signals define by their relative polarities the position of loop system 37 from the double null position at which ea = eb = O. This information may be shown visually on a cross-point indicator 50 or fed to the auto pilot mechanism. A further pair of pick-up loops may be positioned in the nose of the aircraft for use in de-crabbing operations and means for switching from this set to system 37, usually in the centre of pitch and roll, is provided.
Patent GB-276179-A (GB)
Title: Match box
IPC: A24F27/20
Filed: 1926-10-11
Abstract: 276,179. Andrae, E. O. Oct. 11, 1926. Matches, cases specially designed for; match-striking surfaces.-Relates to match cases of the type containing rows of inverted matches in pockets or folds, having internal igniting strips so that matches are ignited as they are withdrawn. According to the invention the matches c are anchored by a single fold a and girded by a pasted strip d in such a way that the tightening effect of the strip d causes the internal igniting strips to bear on the match heads as the matches are withdrawn. The packet, or packets, if more than one, may be enclosed by a wrapper which can be folded over the free ends of the matches.
Patent GB-264218-A (GB)
Title: Improvements in packing for pistons, stuffing-boxes and the like
IPC: F16J9/08
Filed: 1925-10-12
Abstract: 264,218. Doxford, R. P., and Keller, K. O. Oct. 12, 1925. Piston packing. - The piston 1 of an internal-combustion engine is packed by rings 2 mounted in grooves 3. Narrow annular grooves 7 are provided to form flexible tongues 8 which are pressed by pressure fluid on the packing-rings to prevent leakage past the rings 2. In a steam-engine piston, two heads are provided with the tongues arranged on the outside of the packing grooves.
Patent GB-455697-A (GB)
Title: Process for improving hides and skins
IPC: C14C1/00
Filed: 1935-01-21
Abstract: Hides and skins are treated prior to tanning (for the purpose of improving the tanned product or preserving the untanned hide &c.) with an esteramide or diamide of carbonic acid, thiocarbonic acid or iminocarbonic acid having the general formula <FORM:0455697/VI/1> wherein X stands for O, S, NH or N alkyl, Y stands for OR3 or NR4R5 and R1, R2, R3, R4 and R5 stand for hydrogen or organic radicals, but at least one of them is an organic radical containing a straight or branched carbon chain of at least 5 carbon atoms or a hydroaromatic ring of at least 5 members.  The compounds may be used in the form of free bases or their salts.  Examples describe the treatment of calf skin with a solution of a mixture of steardiethylamidine hydrochloride and dodecylurea followed by treatment with acetaldehyde and of goat skin with a solution of diethylaminoethylcarbamic acid stearyl ester hydrochloride followed by treatment with formaldehyde. Specification 448,469, [Group IV], is referred to.
Patent GB-798419-A (GB)
Title: Improvements in machines for spraying insecticides and the like
IPC: A01M7/00
Filed: 1955-09-07
Abstract: 798,419. Crop sprayers. PEARCH, L. C. Sept. 5, 1956 [Sept. 7, 1955], No. 25635/55. Class 69 (3). A machine for blowing atomized liquid over crops includes a trailer 10 supporting an axial flow fan 11 which draws air through an inlet 18 and forces it through a pipe 21 to an outlet conduit 26 of fan shape extending transverse the fan axis. The pipe 21 tapers from a circular crosssection to a shallow rectangular end 22 to which the conduit is attached, and the conduit outlet has a number of mouths 28 in each of which is located a spray nozzle 34. Two vanes or butterfly valves 29 operated by handles 33 control air delivery to the two groups of mouths on the respective sides of the centre-line of the outlet. Each nozzle consists of a cylindrical chamber 38, Fig. 4, to which compressed air is fed tangentially from pipes 39, 45, and the flow of this air from an annular outlet between a spout 43 and an aperture in disc 41 draws liquid from a cup 35 through a pipe 44 and ejects it from the spout and nozzle in atomized form. The cups supplying each nozzle are disposed between the outlet conduit 26 and a tank 14 for the liquid to be sprayed, and are filled to overflowing by a pump 13 and pipes 36, 37, the liquid overflowing from the upper cups descending into the lower ones. Centre pieces 19 and 23 are located on each side of the fan 11 which is driven by belt pulleys &c. from a shaft 50 driven from the power take-off of the tractor pulling the trailer. Two air compressors 12 may be provided, also driven from the shaft 50, to supply air to the two groups of nozzles. Alternatively the machine may have its own engine to propel itself as well as to drive the fan, compressors and pump. The compressor may be mounted on the tractor and be driven from the tractor engine, whilst a separate engine on the trailer may drive the fan and pump.
Patent GB-827983-A (GB)
Title: Improvements in or relating to hydraulic power transmission systems
Inventor: STUBINGTON RICHARD HENRY
IPC: E06C5/10
Filed: 1956-08-22
Abstract: 827.983. Regulating. MERRYWEATHER & SONS Ltd. Oct. 24, 1957 [Aug. 22, 1956(2)], Nos. 25656/56 and 25657/56. Class 7(6) [Also in Group XXIX] The output of a pump is varied automatically in accordance with the demand. A fire engine has a vehicle engine driven pump 1 supplying liquid through a line 5 to hydraulic motors for operating a ladder mounted on a turntable. A combined unloading and relief valve 4 is biased to its closed position in which it acts as a relief valve by pressure in a pilot line 3 which is connected to .the supply line 5. A foot operated valve 2 when not actuated opens line 3 to an exhaust line 13 and valve 4 then functions as an unloading valve, pump output passing via a line 10 and throttle 16 to a sump 11. Closing valve 2 causes valve 4 to close and function as a relief valve, the pressure in line 5 rising to a value determined by valve 4 and excess liquid passing via line 10 to exhaust. Pressure in line 10 acts on a piston 17 operating a power controlling member 19 of th engine through a lever 20 so that increasing pressure in line 10 results in a decrease of engine speed. To ensure that the engine will idle when the pump is unloaded, lever 20 is pivoted on a movable fulcrum 21 controlled by a piston 22 subject to the pressure in line 5. When the unloading valve is open piston 22 moves lever 20 to the retracted position in which the engine idles irrespective of the position of piston 17. The system can be adapted to operate with a constant speed prime mover employing a variable delivery pump, the pump capacity or the speed ratio of a variable speed gear being varied in accordance with the pressure in the line 10. The hydraulic motors (not shown) are connected to the supply line 5 and to a return line 6, a multi-way rotatable connection 7 allowing rotation of the turntable.
Patent GB-462826-A (GB)
Title: Improvements in and relating to gyroscopic devices
IPC: G01C19/44
Filed: 1935-09-16
Abstract: 462,826. Gyroscopic apparatus. BARKER, G. G. (Eclipse Aviation Corporation) Sept. 16, 1935, No. 25664. [Class 97 (iii)] Two gyroscopes are carried by a single gimbal-mounted frame, one with a vertical spin axis and the other with a horizontal spin axis, and function as a gyro vertical and true meridian seeking compass respectively. The gyroscopes operate means for indicating on a single dial the compass direction and the attitude of a supporting aircraft. In the form shown, gyros 8, 9 are mounted on a horizontal spin axis 11, 12 and a vertical spin axis 13, 14 respectively in a common frame 10 pivoted about a vertical axis in an outer frame 15. The latter pivots about a transverse horizontal axis 18, 19 in a ring 17 pivoting about a fore-and-aft axis 22, 23 in an outer casing 20. The frame 15 is made pendulous by a mass 16. Air is withdrawn from the casing 20 through opening 55 and the air drawn in through the opening 64 is led through channels in the gimbal ring and frames to driving jets for the gyros. An air passage also leads to two pairs of oppositely directed orifices 62, 63, &c., in the weight 16. The orifices are normally closed by four pendulous shutters pivoted on spindles 60, 61, the freedom of the shutters 56, 57 of each pair being restricted to permit them to uncover the corresponding orifices only by moving in opposite directions. On the occurrence of an acceleration one orifice is uncovered and the consequent torque applied to the weight 16 causes the gyro to precess in a direction opposite to that in which the acceleration acts. A compass card 25 is carried by the frame 10 and a co-operating mark 44 by the frame 15. An artificial horizon indication is provided by aligned horizontal members 26, 27 carried by a frame 28 which is pivoted at 31, 32 to the gimbal 17 and rocks therewith about the fore- and-aft axis. The members 26, 27 are caused to rise and fall to simulate the apparent movements of the real horizon when the aeroplane pitches or climbs by pin-and-slot connections 37, 38 between the frame 28 and arms 35, 36 fixed to the frame 15. The indications are observed in conjunction with a member 42 fixed to a standard 21 supporting the pivot 23 and appear through the window 45 as shown in Fig. 7.
Patent GB-919222-A (GB)
Title: Improvements in or relating to methods of and means for testing equipment of the kind which provides a modulated carrier wave output
Inventor: ELSON NORMAN
IPC: G01R29/06
Filed: 1960-07-22
Abstract: 919,222. Measuring harmonic distortion. RACAL ELECTRONICS Ltd. July 21, 1961 [July 22, 1960], No. 25708/60. Class 37. Relates to a method of testing equipment of the kind which provides a modulated output at a carrier frequency, wherein an amplitudemodulated test signal having an audio frequency carrier is applied to an input of the said equipment, and the output signal from the equipment is applied to means for deriving the modulation of the test signal together with any additional components resulting from distortion. A test signal consisting of an amplitude-modulated double side-band signal is generated by amplitude modulating an audio frequency square wave carrier at frequency f 2  with an audio frequency f 1 . This is passed through a bandpass filter having a pass-band in the range f 2 -f 1  to f 2 +f 1  to remove unwanted carrier harmonics, and then via a buffer stage to the equipment under test, wherein the output carrier frequency is modulated by the input signal. The output from the equipment is passed through an envelope detector and thence to an audio envelope analyser which indicates any intermodulation effects which may have been produced by the equipment as distortions in the envelope waveform. Alternatively the output may pass to a circuit accepting frequency f 1  and measuring its amplitude, and to a circuit rejecting the frequency f 1  and measuring the peak amplitude of the unwanted harmonics. The ratio of the two signals will give the amount of harmonic distortion.
Patent GB-1112044-A (GB)
Title: Method and apparatus for compacting non-cohesive materials disposed below a liquid medium
Inventor: VERYARD KENNETH JOHN
IPC: E02D3/12
Filed: 1965-06-17
Abstract: 1,112,044. Soil stabilisation. ESSO RESEARCH & ENGINEERING CO. 25 May, 1966 [17 June, 1965], No. 25715/65. Heading E1F. Non-cohesive granular or powdery material beneath or overlying liquid is compacted by applying a binder to the material after it has been fluidised by applied vibrations.
Patent GB-1334344-A (GB)
Title: Receiving sheets for liquid developed electrostatic imagges
IPC: G03G7/00
Filed: 1972-06-01
Abstract: 1334344 Coated products EASTMAN KODAK CO 1 June 1972 [1 June 1971] 25716/72 Heading B2E A receiving sheet for a developed image, especially an image produced by an electrophotographic process, comprises a porous support having a volume resistivity of 10<SP>4</SP>-10<SP>9</SP> ohm-cm carrying a barrier layer of a hydrophilic film-forming colloid having a volume resistivity of 10<SP>4</SP>-10<SP>9</SP> ohm-cm and on top of the barrier layer, an image receiving layer, usually of a dielectric film-forming resin, which has a volume resistivity greater than 10" ohm-cm. The support may be a fibrous web such as paper, which may be coated on both sides with a latex-casein-clay layer, and which is rendered conductive by sizing with 1-10% by weight of polydimethyl diallyl-ammonium chloride. The barrier layer may be of hardened gelatin or polyvinyl alcohol usually of 20-40 microns thickness and optionally containing sodium polymethylacrylate and BaSO 4  or TiO 2 . The image-receiving layer may comprise a polyvinyl acetal such as polyvinyl formal or butyral.
Patent GB-1529747-A (GB)
Title: Light-sensitive silver halide photographic materials
IPC: C09B23/00
Filed: 1976-06-21
Abstract: 1529747 Sensitized silver halide emulsions FUJI PHOTO FILM CO Ltd 21 June 1976 [30 June 1975] 25748/76 Heading G2C [Also in Division C4] A silver halide photographic material comprises a support having coated thereon at least one silver halide emulsion layer containing at least one dicarbocyanine sensitizing dye having two heterocyclic -nuclei each having a 5- or 6-membered nitrogen-containing heterocyclic ring, which nuclei are selected from thiazole, selenazole, oxazole, quinoline, 3,3-dialkylindolenine, imidazole or pyridine and are connected to each other by a pentamethine chain attached to a carbon atom in the 2- or 4-position thereof, wherein a nitrogen atom of one nucleus is substituted by a sulpho- or carboxy-containing alkyl group, a sulpho-aralkyl or a carboxy-aralkyl group and a nitrogen atom of the other nucleus is substituted by an optionally substituted aralkyl or aryloxyalkyl group, with the proviso that the said aralkyl and aryloxyalkyl groups are not substituted by a sulpho group or a carboxyl group. The dyes can be added to the emulsion directly or as a solution, e.g. together with a red-shift compound as described in  Specification 1528150. As supersensitizers there can be used in combination with the dye compounds of the Formula D(SO 3 M) n  wherein M is hydrogen or a cation which renders the compound water soluble, n is an integer greater than 1 and D is a "polycyclic aromatic compound" which means a condensed polycyclic aromatic hydrocarbon residue, a condensed polycyclic aromatic heterocyclic ring residue or a compound residue which contains two or more aromatic rings (hydrocarbon or heterocyclic) connected to one another directly or through a divalent atom, an aliphatic hydrocarbon chain or other groups.
Patent GB-208259-A (GB)
Title: A double action screw fixing for racket press
IPC: A63B60/44
Filed: 1922-09-25
Abstract: 208,259. Pearse, A. G. Sept. 25, 1922. Racket presses.-A device of the kind described in Specification 16926/13 for clamping the aluminium &c. members of a racket press comprises a double - action screw carrying at one end means such as a set screw A for preventing the parts of the press from becoming dismantled by careless manipulation. The double-action screw is rotated by a finger piece D situated between or outside the frames.
Patent GB-616133-A (GB)
Title: Improvements in or relating to the production of regenerated cellulose textile materials
IPC: D01F2/28
Filed: 1946-08-28
Abstract: Textile materials having a basis of regenerated cellulose are made by stretching and subsequently saponifying filaments, yarns and the like having a basis of an organic ester of cellulose and containing a non-volatile plasticiser for the ester, said filaments and yarns being produced by extruding a solution of the cellulose ester containing the plasticiser.  The process is particularly applicable to yarns of cellulose acetate, but yarns of other esters may be employed such as cellulose propionate, butyrate, acetate-propionate and acetate-butyrate.  The plasticiser should be insoluble in water, if, as is preferred, the yarns are stretched while being softened by contact with wet steam or hot water.  To facilitate eventual removal of the plasticiser, it is advantageous that it should be hydrolysed to water-soluble components under the conditions for saponifying the ester yarns. Suitable plasticisers possessing these properties are acetyl triethyl citrate, diethyl succinate, diethyl tartrate, tri-ethylene glycol dipropionate, glycerol tri-acetate and glycerol tri-propionate.  The amount of plasticiser incorporated should be from 0.5 to 5.0 per cent of the weight of cellulose ester.  The yarns may be spun by any conventional dry spinning process and after stretching are led into a saponifying bath containing a suitable basic agent such as sodium hydroxide, potassium hydroxide, sodium silicate, ammonium hydroxide, sodium carbonate, methylamine, ethylene diamine or triethanolamine in aqueous, alcoholic or aqueous-alcoholic solution at 20 DEG  to 100 DEG  C. When using caustic soda it is preferable to add sodium chloride or sodium acetate.  In an example a cellulose acetate yarn is made by extruding a solution of 26 per cent cellulose acetate in acetone/water and containing 2 per cent of the weight of cellulose acetate as acetyl tri-ethyl citrate.  The yarn is stretched to 9 times its original length under the action of wet steam under pressure.  It is then saponified with a 0.6 per cent aqueous solution of sodium hydroxide containing about 6 per cent of sodium acetate to give a regenerated cellulose yarn of highly uniform character.
Patent GB-601836-A (GB)
Title: Improvements in electric cables
IPC: H01B7/28
Filed: 1945-10-05
Abstract: 601,836. Cables. OKONITE-CALLENDER CABLE CO., Inc. Oct. 5, 1945, No. 25035. Convention date, Oct. 6, 1944. [Class 36] Cables with impregnated insulation are enclosed in a moisture, oil, and acid proof sheath comprising an inner flexible envelope 8 of polyethylene tetrasulphide, preferably that known as " Thiokol " (Registered Trade Mark). The cable has an outer flexible non- metallic envelope 14, e.g. polymerized chloroprene, which is resistant to oils, acids and alkalies and is reinforced, e.g. with glass threads. The envelope 14 may also consist of glass tape filled with bitumastic compound. The envelope 8 may be covered with glass tape or with metal tapes 10, 12 or metallized paper tapes, the metal faces being in contact. A tube 7, which may be an open helix or perforated, is used to charge the cable with insulating oil or with a mixture of insulating oil and dichlorodifluoro-methane, e.g. " Freon 12 " (Registered Trade Mark) up to a pressure of 90 Ibs. per sq. in at 70‹ F. Each conductor 2 is insulated with paper tape 4 and the spaces filled with glass wool or jute 6.
Patent GB-1511743-A (GB)
Title: Toy figures
IPC: A63H3/46
Filed: 1975-06-18
Abstract: 1511743 Doll's &c Y SATOH 18 June 1975 [31 Oct 1974] 25984/75 Heading A6S [Also in Division E2] A doll, &c. comprises parts detachably connected together, one part consisting of a permanent magnet with pole pieces fixed at opposite sides, and at least one other part, including a spherical joint portion of magnetic material engageable between the pole pieces. In one form, a permanent magnet 4, Fig. 1, is sandwiched between pole pieces 5, 6 which extend at 7, 8, &c. beyond the boundaries of the magnet. Cutouts 9, 10 around the pole pieces are shaped to receive joint elements 13, Figs. 2, 3, of magnetic material each secured to arms, legs and a head 3 of the doll. The arms, &c. 3 are thus retained detachably to the doll body by magnetic attraction, and may be angularly adjusted. Breast and back decorations 11, 12 are secured to the pole pieces. In another form, magnetic leakage between adjacent joints is restricted by slots 15, 16, Fig. 5, in the pole pieces. In another form, flanges 17, 18, Fig. 6, around the edges of the pole pieces 5, 6, are shaped to receive the joint elements 13.
Patent GB-976221-A (GB)
Title: Improvements in photographic emulsions
IPC: G03C1/04
Filed: 1962-07-06
Abstract: 976,221. Binders for photographic emulsions. E.I. DU PONT DE NEMOURS & CO. July 6, 1962 [Feb. 27, 1962], No. 26073/62. Heading G2C. The binder of a photographic gelatino-silver halide emulsion comprises (i) an aqueous phase containing (a) 20 to 85 parts (by weight) of gelatin and (b) 2. 5 to 40 parts of a water soluble glycan of the empirical formula (C6H10O5)n or (C5H8O4)n wherein n is 20 to 600 and the monomeric units are naturally occurring aldose or ketone units and (ii) 10 to 70 parts by weight of a non-aqueous phase dispersed in the aqueous phase and comprising colloidal particles of substantially water-insoluble addition polymer of an olefinically unsaturated monomer of molecular weight less than 250. An amphoteric dispensing agent of the formula RNHm(C2H4 COOM)p where R is a C12-18 hydrocarbon radical, m is 0 or 1,p is 2-m and M is H, Na, K or NH4 and a cationic optical sensitising dye are preferred optional ingredients. The Specification includes extensive lists of suitable polymers, conventional ingredients of photographic emulsions which may be present, and conventional supports which may be used. Specifications 592,676, 660,058, 762,019, 786,176, 875,100 and 897,497 are referred to.
Patent GB-812529-A (GB)
Title: Improvements relating to rotary tool-holding chucks
Inventor: KIEHNE ALFRED JULIUS
IPC: B23B31/107
Filed: 1957-08-19
Abstract: 812,529. Sockets. FRASER, M. W. Aug. 19, 1957, No. 26128/57. Class 83 (3). In a socket H, a tool 3 having a conical end S and an annular groove 16, is centred and held respectively, by a conical seat 18 in a bore 11<SP>1</SP> of a body 11 and three equispaced balls 19. The body 11 has radial bores 17 for the balls, and an external flange 24. A sleeve 10, slidable on the body 11, has an annular recess 20 to accommodate the balls 19 and allow insertion of the tool shank 3, a spring 25, acting between a flange 11 on the body and the sleeve, biasing the sleeve to the position shown to force the balls into groove 16 by an annular cam surface 21. Pins 15 projecting into the bore 11<SP>1</SP> engage a flat on the tool shank to prevent rotation. A spring ring 26 prevents disengagement of the sleeve 10, and the body may be driven by a screwed end 8 or a taper shank and tag end.