baber/WOPTO huggingface dataset:
Patent GB-825829-A (GB)
Title: Improved method of detecting faults and apparatus therefor
Inventor: RIDLEY WILLIAM WILSON
IPC: F16D7/00
Filed: 1955-01-19
Abstract: 825,829. Mechanical presses ; safety devices. BRITISH THOMSON-HOUSTON CO. Ltd. Jan. 16, 1956 [Jan. 19, 1955], No. 1660/55. Class 87(2). [Also in Groups XIX and XXXIV] A fault is detected in an element or structural part of a mechanical press having mating surfaces held together by pressure, e.g. a brake or clutch, and operation of the machine is prevented if a fault occurs, by applying air under pressure from a supply line 14 via regulator 16, conduit 13 and duct 12 to the space between the mating surfaces, and utilising the drop in pressure when a fault occurs to actuate the piston 19 of a machine interlock 20, 21. The invention is shown applied to a friction brake or clutch the surfaces 8, 9 of which are held against the friction surfaces 5 by spring pressure acting on the hub 6. Should the brake.or clutch become inoperative due e.g. to fracture of the spring the leakage of air at the friction surfaces lowers the pressure sufficiently to operate the interlock and also actuate a visual or audible alarm by a pressure switch 17.
Patent GB-423634-A (GB)
Title: Method of manufacturing rivets
IPC: C22C38/16
Filed: 1934-01-17
Abstract: Rivets are made of steel containing up to 0,13 per cent of carbon, 0,2-0,5 per cent of manganese, 0,1-0,7 per cent of silicon, and up to 1 per cent of copper, with or without up to 1 per cent of molybdenum and 1 per cent of vanadium instead of or in addition to the copper, the total amount of copper, molybdenum, and vanadium being up to 2 per cent.
Patent GB-139561-A (GB)
Title: Improvements in vapour burners
IPC: F23D11/44
Filed: 1919-01-24
Abstract: 139,561. Gaskell & Chambers, and Timmins, J. Jan. 24, 1919. Atmospheric vapour burners; vapour burners, solidflame.-In a vapour burner in which a perforated casing A is secured to a central vaporizing-tube B, the casing A is formed in one with a preferably domed central part 1 provided with a minute hole 3 or a small nipple for the egress of vapour, the vaporizing-tube being brazed or otherwise firmly secured in a circular recess i nthe part 1. The casing A may form part of the mixing-chamber of a silent " Primus burner, or may be fitted with a " roarer " plate of a " roarer " Primus burner. Reference has been directed by the Comptroller to Specifications 7683/02 and 8535/07.
Patent GB-371817-A (GB)
Title: Improved pile fabric and method of making the same
IPC: D03D27/00
Filed: 1931-01-19
Abstract: 371,817. Pile fabrics. STEPHENS, A. J., 285, High Holborn, London.-(Collins & Aikman Corporation ; 51st Avenue, Philadelphia, U.S.A.) Jan. 19, 1931, No. 1810. Addition to 336,553, [Class 142 (iv), Woven fabrics &c.]. [Class 142 (iv).] Loops of undyed pile yarns containing animal fibre such as mohair and woven into backing fabric comprising a subnormal number of predyed yarns, are firmly united thereto by coating the backing with an aqueous dispersion of rubber and coagulating this in situ. The invention may be applied to pile fabrics woven on the double plush principle with pile warps loosely looped around single wefts of the backing fabrics and secured firmly thereto by the aqueous dispersion of rubber, which may contain a vulcanizer such as colloidal sulphur, zinc oxide, and an accelerator, and is applied adjacent to a knife or scraper used for spreading the coating. The fabric is then dried in a closed dryer and subjected to a drying coagulating or vulcanizing heat according to the particular aqueous rubber dispersion used. The fabric is then pile dyed and may then be subjected to a usual bichromate treatment to prevent bleeding of the dye, and then finished.
Patent GB-489687-A (GB)
Title: Improvements in devices for determining the elements of the path of aircraft
IPC: G01C21/20
Filed: 1938-01-19
Abstract: 489,687. Calculating - apparatus. OESTERREICHISCHE UNGARISCHE OPTISCHE ANSTALT C. P. GOERZ GES., and PETSCHENIG, K. Jan. 19, 1938, No. 1815. [Class 106 (i)] A device for use in determining the elements of the path of an aircraft, observed acoustically from observation stations, in the manner described in Specification 289,872, [Class 106 (ii)], comprises a graduated disc 3, Figs 1 and 2 rotatably mounted on a support 1 and carrying a map on which is topographically indicated two direction-finding stations I, II, a diametrical pointer bar 4 and a horizontal guide bar 5 carrying a pair of slides 6, 7. The bar 4 is freely mounted on the pivot 2 of the disc and is held in adjusted position by a friction spring 4b ; the bar is provided with a scale and an index wire 4a for adjusting the plane of the object ray of the finding station I on the peripheral scale, 1a and the azimuth angle on the disc scale 3a. The slide 6 carries a vertical scale 6b of altitude. The slide 7 forms a pivot 8 for a pointer arm 8a with an index wire 8b and an index 9 co-operating with a scale 7a for setting the inclination of the object ray of the finding station II. In order to allow for any difference in altitude between the two stations I and II the pivot mounting 8 is vertically adjustable by means of a slide 7e and screw spindle S, Fig. 5. In operation the course angle is set on the scale 3a by the mark M ; the slide 7 with the pointer arm 8a vertical is set to coincide with the station II and then the arm is adjusted to the inclination angle #; the arm 4a is set on scale 1a to the inclination angle alpha. The point of intersection Z is read off on the scale 6b to give the altitude. The pointer arm 4a is then rotated to the azimuth angle and the point Z<1> gives the horizontal distance a of the object. In a simplified form of instrument the bar 4 as well as the slide 6 are dispensed with and the pointer arm 8a, Fig. 4, is formed as a diametrical rule with an altitude scale and with a catch R for use in setting the arm in vertical position.
Patent GB-875772-A (GB)
Title: Improvements in or relating to coverings for electric cables
Inventor: TUNSTALL HAROLD ARTHUR
IPC: H01B7/282
Filed: 1957-01-17
Abstract: 875,772. Cables. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 17, 1958 [Jan. 17, 1957], No. 1844/57. Class 36. A conductor is covered with a lapping of substantially liquid impermeable tape of polyethylene terephthalate or nylon and having a melting or sintering point below that of glass, followed by a braiding, lapping or roving of a composite yarn consisting of a mixture of glass filaments and filaments of the same synthetic resin as that used for the tape which are fused together, by heating to a temperature above the melting point of the resin, after application of the covering to the conductor, the application of heat, e.g. by gas burners, being adjusted to avoid affecting the synthetic resin tape layer. The composite covering may be applied over a material which may swell as a result of contact with liquids such as kerosene, e.g. natural, butyl or silicone rubbers or neoprene and these may be coated on glass tape. An outer layer of polyethylene terephthalate tape may be applied over the composite covering either before or after heating; alternatively, a silicone resin varnish or lacquer or a dispersion of polychlorotrifluorethylene may be applied. According to the Provisional Specification where the covering is to withstand temperatures exceeding 190‹ C. the synthetic resin may be P.T.F.E. and a dispersion overall may be necessary. Specification 859,559 is referred to.
Patent GB-473172-A (GB)
Title: A device for taking cores from a borehole
IPC: E21B25/02
Filed: 1937-01-21
Abstract: 473,172. Deep boring. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Jan. 21, 1937, No. 1870. Convention date, Feb. 8, 1936. Addition to 451,825. [Class 85] In a device for raising cores through the drill tubes by the flushing fluid by reversing the flow thereof, the surface on which the reversed flow acts is placed above the core barrel. In Figs. 1a and 1b, the core barrel 25, carrying vent valve 20, is normally held by pawls 14 engaging a collar 13 and locked by a head 10<1> on a slidable rod 10<11> provided with a stop nut 17 ; integral with the head 10<1> is an apertured tube 10 limiting downward movement of the head and threaded to a tubular member 5 containing a seat 6 below which a ball valve 7 normally floats on a spring 9. An elastic piston 4 is carried by the member 5. During drilling, the flushing fluid passes down through member 5, past valve 7 and around the core barrel. On reversing the flow, valve 7 closes and the pressure acts on piston 4 first to raise rod 10<11> to release the pawls 14, and then to raise the core barrel. If the drill pipe is not flush jointed internally, the length of the aggregate must be such that at least one of two successive reduced parts of the bore is closed by the piston or some part such as the core barrel. In Fig. 2, the piston 4 forms part of a separate device including pivoted jaws 37 adapted to engage a head 40 on the core barrel and to be locked by an enlargement 33<1> on a rod 33 ; the device is forced downwards by the flushing fluid and when the jaws 37 contact the head 40, spring 35 yields and enlargement 33<1> clears the jaws to allow the latter to engage the head.
Patent GB-1016234-A (GB)
Title: Process for the production of 2-ethyl isonicotinic acid thioamide from 2-ethyl pyridine
Inventor: EILHAUSER DIETER
IPC: C07D213/83
Filed: 1964-01-16
Abstract: In a process for the preparation of the title compound by the conversion of 2-ethylpyridine to the N-oxide, then to 2-ethyl-4-chloropyridine, the sulphpnic acid, 2-ethyl-4-cyanopyridine and finally to the thioamide, the 2-ethylpyridine N-oxide is dried by adding a water immiscible solvent followed by a solid alkali metal hydroxide or by azeotropic distillation by means of the solvent, and/or the chlorine is exchanged for the sulphonic acid residue in an alcoholic aqueous solution, whereafter the alcoholic aqueous solution of the 2-ethyl-4-pyridine sulphonic acid alkali metal salt thus formed is evaporated in the presence of that quantity of alkali metal cyanide which is necessary for the conversion to 2-ethyl-4-cyanopyridine.
Patent GB-994936-A (GB)
Title: Improvements in or relating to temperature measuring devices for centrifuges
IPC: G01K7/24
Filed: 1963-01-16
Abstract: 994, 936. Measuring temperature electrically: measuring bridges. M. CHRIST, [trading as MARTIN CHRIST FABRIK ELEKTRO MEDIZINISCHER APPARATE]. Jan. 16, 1963 [Jan. 25, 1962], No. 2060/63. Headings G1N and G1U. The temperature of the contents of a centrifuge 3 (Fig. 1) determines the resistance loading of a thermistor 6 rotating with the centrifuge shaft 2, which is transferred via rotating coil 11 to a stationery coil 15 in one arm of an A.C. bridge, whose unbalance current is thus indicative of the centrifuge temperature. The bridge may consist of two arms 69, 70 (Fig. 3) formed by the centretapped Secondary winding of a transformer 68 fed from an oscillator 29<SP>1</SP>, the measuring arm comprising coil 15 in series with a capacitor 71 and the balancing arm comprising a coil 73 and capacitor 77. Resistance balance is effected by variable resistor 75 across coil 74 coupling with coil 73.
Patent GB-1493052-A (GB)
Title: Automatic controlling device for maintaining a substantially constant rate of air flow in the air-conditioning equipment
IPC: F24F11/75
Filed: 1975-01-17
Abstract: 1493052 Valves SINKO KOGYO CO Ltd 17 Jan 1975 [23 April 1974] 2083/75 Heading F2V A regulator for air in an air-conditioning system comprises a rectangular casing 1 and mounted in the casing upon two fixed transverse bars 2, 3 with shaft receiving holes 2 1 , 3 1  respectively, an expandable member comprising four hinged plates 4, 4 1 , 5 and 5 1 , biased to the open position by a spring 9 and subject to the static pressure of the air which enters the member by the narrow gap between the plates and the two side walls of the casing. Plates 4 and 41 are hinged to the bar 3 and to plates 5 and 5 1  respectively which are in turn hinged to a support 10 fixed to a shaft 6. The spring bears against a stop 6 2  fixed to the shaft and a stop 8 which is adjustably fixed so that the loading of the member can be varied. Adjustment of the loading may be manual or by a motor and the level of loading is indicated by a lever which connects the stop 8 to the casing and the manual or motor adjustment. A second spring is included to increase the loading as the member approaches a fully expanded position. The design of the regulator is said to reduce noise.
Patent GB-113147-A (GB)
Title: Improvements in Fire-extinguishing Sprinkler Valves and other analogous Valves.
Inventor: TAYLOR CLAUDE MONTAGU
IPC: A62C37/12
Filed: 1917-02-12
Abstract: 113,147. Taylor, C. M., and Wallis, L. M. Feb. 12, 1917. Thermally - a c t u a t e d valves. - A valve for automatic sprinklers has interposed between the valve seating d and the tightening screw c a series of hard balls a, b, c, held in position by fusible washers g, h, cages or the like.
Patent GB-276880-A (GB)
Title: Improvements in machines for treating rubber and similar material
IPC: B01F15/00
Filed: 1926-06-02
Abstract: 276,880. Lewis, R. C., and Farrel Foundry & Machine Co. June 2, 1926. Mixing by compression.-Machines for mixing or kneadng rubber &c. of the kind comprising a rotor working in a cylindrical chamber are provided with thrust collars for taking up end-play in the rotor shaft and with packing-rings mounted in the ends of the chamber and bearing against the ends of the rotor to protect the bearings from the material under treatment. The thrust collar 90 is screwed upon the threaded end 91 of the shaft 17 and locked thereon; in the illustrated embodiment the locking is performed by a key 98 inserted in registering recesses 93, 94 in the collar and shaft respectively, and to give a large number of locking positions several such recesses are provided on the collar and shaft spaced at different intervals, as shown in Fig. 5. The key is bolted to the collar. Thrust plates 92 may be interposed between the collar and the bearing 14. The packing ring 106, which may be of bronze, is situated in an annular recess 105 in the inner face of an annular member 102 attached to the end wall of the chamber. It is forced into contact with the rotor 18 by means of springs 107 guided upon pins 110, and prevented from rotating by one or more pins projecting from the member 102 and engaging holes in the packing- ring. Holes filled with graphite or other lubricant may be provided in the face of the ring. The ring and its supporting member are made in separate halves so that they may be removed through the space 115 without dismantling the shaft.
Patent GB-1291696-A (GB)
Title: PROCESS FOR THE PRODUCTION OF alpha-SUBSTITUTED BENZOINS AND BENZOIN ETHERS
Inventor: HEINE H-G
IPC: F16L23/02
Filed: 1970-01-16
Abstract: 1291696 Benzoin derivatives FARBENFABRIKEN BAYER AG 16 Jan 1970 [16 Jan 1969] 2193/70 Heading C2C Compounds of the formula where R 1  and R 2  are H, alkyl, alkoxy or halogen R 3  is optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aryl or aralkyl, R 4  is H or optionally substituted alkyl, alkenyl, cycloalkyl, aryl or aralkyl and X or O or S are prepared by reacting a compound of the formula with a suitable electrophilic agent in the presence of a basic catalyst in a dipolar aprotic solvent or between 0‹ and 100‹ C. The invention further comprises racemates of Formula I, wherein R 4  is not hydrogen and R 3  is not aryl.
Patent GB-538574-A (GB)
Title: Improvements in and relating to gyroscopic apparatus
IPC: G01C19/44
Filed: 1940-02-06
Abstract: 538,574. Gyroscopes. SPERRY GYROSCOPE CO., Inc. Feb. 6, 1940, No. 2330. Convention date, March 18, 1939. [Class 97 (iii)] In a gyroscope of the kind which is mounted in neutral equilibrium and is erected by means of air jets under the control of pendulous shutters means are provided for reducing the maximum erecting force without affecting the erecting force exerted under small relative tilts of the gyroscope and pendulums. As shown the pendulous shutters 9, 9<SP>1</SP>, 10, 101 are mounted in relation to ports 6, 6<SP>1</SP>, 7, 7<SP>1</SP> forming the jets for the air passing from the interior of the gyro casing extension. Mounted on this extension is a baffle or spoiler 171 having depending blades 16, 17 which intersect the air stream from the erection ports only when such ports are approaching the wide open position, i.e. when the pendulous shutters 9, 91, 10, 10<SP>1</SP> are swung out to a substantial angle due to a considerable acceleration such as a marked turn of an aeroplane. Specification 393,695 is referred to.
Patent GB-1363402-A (GB)
Title: Polycarbonate moulding composition
IPC: C08L67/02
Filed: 1973-01-17
Abstract: 1363402 Polycarbonate compositions GENERAL ELECTRIC CO 17 Jan 1973 2349/73 Heading C3R A polycarbonate moulding composition comprises (a) an aromatic polycarbonate, (b) polyethylene, polypropylene, polyisobutylene, a copolymer of ethylene and an alkyl acrylate, a copolymer of ethylene and propylene, a cellulose ester, a polyamide, a polyvinyl metal, an alkyl cellulose ether or a polyurethane as modifier, present in an amount from 0À25 to 50% by weight based on polycarbonate plus modifier, and (c) from 0À01 to 2À0% by weight, based on total composition, of a graft polymer of polybutadiene and a mixture of an alkenyl cyanide and a vinyl aromatic hydrocarbon. The preferred polycarbonate is derived from 2,2-bis- (4-hydroxyphenyl) propane. The example describes a polycarbonate composition containing polyethylene and a graft polymer of polybutadiene, acrylonitrile and styrene.
Patent GB-806346-A (GB)
Title: Improvements in or relating to the etching of semiconductors
Inventor: LAMMING JACK STEWART
IPC: H01L21/3063
Filed: 1956-01-24
Abstract: 806,346. Electrolytic etching. GENERAL ELECTRIC CO. Ltd. Jan. 2, 1957 [Jan. 24, 1956], No. 2396/56. Class 41. A semi-conductor body, e.g. a germanium wafer, is etched electrolytically by directing a jet of electrolyte at the body while maintaining an electric potential difference, e.g. 700 volts, between the body and an electrode, which may be a nozzle for the electrolyte, which is in contact with the electrolyte, the resistivity of the electrolyte being at least 1000 times as great as that of the body. During etching, the wafer is held by suction against a stainless steel support with its main faces vertical and a jet of an aqueous solution of KOH at a concentration of 0.125 gm. per litre directed under pressure, e.g. 1 kg. per square cm., from a nickel nozzle connected as cathode. The resistivity of the electrolyte is 2000 ohm centimetres, that of the wafer being 0.4, and a current of 6.35 milliamps gives a current density 1.55 amps. per square centimetre for the jet.
Patent GB-894501-A (GB)
Title: Improvements in or relating to draught excluders
IPC: E06B7/23
Filed: 1958-01-24
Abstract: 894,501. Draught excluders. MOORE, F. T. D. April 24, 1959 [Jan. 24, 1958], .o. 2415/58. Class 20(3) A draught excluder comprises a strip of flexible "Polythene" (Registered Trade Mark) of U-section 1, 2, 3, Fig. 1, for engagement with clearance about the lower end of the door with the walls 2, 3 capable of contacting the opposed faces of the door D and a flexible sealing element such as blades or ribs 4, 5, or a layer of felt, sponge-rubber or polyurethane foam on the bottom of the channel to engage the floor. The strip may have resilient flanges 9, Fig. 3, which contact the floor when the channel is tilted as shown. The strip may be scored or grooved at intervals for parting off suitable lengths for the door width. One wall of the channel may be replaced by at least two fingers or it may be apertured for lightness of weight.
Patent GB-650166-A (GB)
Title: Automatic axial pressure device applicable to friction drives
IPC: F16H13/14
Filed: 1948-01-27
Abstract: 650,166. Variable-speed friction gearing. SOC. DES FABRICATIONS UNICUM. Jan. 27, 1948, No. 2464. Convention date, Feb. 8, 1947. [Classes 80(i) and 80(ii)] A series of continuous cam shaped grooves 22 having medial lines arranged on a circle of radius R centered on the axis of rotation, an arcuate shape in radial section corresponding to the radius r<SP>1</SP> of balls 7<SP>1</SP>, and an arcuate shape corresponding to a larger radius r in section on the said circle characterizes an arrangement for automatically varying the axial pressure between coaxially rotating members in frictional torque transmitting devices, such as variable speed friction drives. In such a drive, Fig. 2, rollers 4 drive a disc 5 at variable speed, depending upon their radial position in relation to the disc 5 and driving discs (not shown), and the drive is conveyed through parts 17, annuli 7, 8 connected by the balls 7<SP>1</SP> sealed in the grooves 22, parts 9 and a member 16 keyed (not shown), to a driven shaft 10. All the torque conveying parts are axially slidable under the influence of a compression spring 15 which provides the basic pressure on the discs and rollers, additional pressure, related to the torque transmitted, being provided by the balls 7<SP>1</SP> partially riding up the grooves 22 on slight angular displacement of the annuli 7, 8. To damp torque fluctuations of short duration a stop pin 14 having hemispherical ends is engaged between the member 16 and a screw 13 having a coarse pitch thread, the axial position of which is controlled by a torsion spring 12 secured to an adjustable screw plug 11.
Patent GB-799600-A (GB)
Title: Improvements relating to glass compositions
Inventor: RAWSON HAROLD
IPC: C03C3/21
Filed: 1956-01-25
Abstract: 799,600. Glass. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 25, 1957 [Jan. 25, 1956], No. 2494/56. Class 56. A glass comprises 50-85 per cent weight WO 3  and sufficient P 2 O 5  to make up to at least 95 per cent weight. Up to 5 per cent weight Na 2 O, KzO, BaO and/or ZaO may be included. The source of the P 2 O 5  is HPO 3  or NH 4 H 2 PO 4 .
Patent GB-196398-A (GB)
Title: Improvements in or relating to apparatus for use in the manufacture of rubber goods and the method of handling such goods during manufacture
IPC: B29D30/06
Filed: 1922-01-27
Abstract: 196,398. Sloper, T. Jan. 27,1922. Addition to 169,525. Tyre covers, stripping from cores.-In apparatus for removing tyres from moulds, which comprises a cavity member A with flexible lips B forming with the tyre D a chamber E which is exhausted, as described in the parent Specification, engaging-means H are mounted in the cavity member so as to engage the tyre and prevent lateral displacement thereof. In the preferred form, the engaging-means consist of spiked plungers H<1> sliding radially in relating to the cavity member A in cylinders H<2>, with which wider cylinders H<3> attached to the plungers make telelscopic joints. The interior of the cylinders communicates with the space E by a passage H<8>, so that when the space E is exhausted the plungers advance into engagement with the tyre and then recede with the latter. In a modified apparatus, the plungers are in the form of pistons working in open-ended cylinders mounted on the member A.