baber/WOPTO huggingface dataset:
Patent GB-231542-A (GB)
Title: Improved apparatus or appliance for recording or reproducing sounds
IPC: H04R7/00
Filed: 1923-12-31
Abstract: 231,542. Kestraphone Co., Ltd., and Moore, F. Paton-. Dec. 31, 1923. Tool-arms; sound-box casings.-In a gramophone soundbox having a built-up diaphragm consisting of a conical or like portion 3 and a flat disc 28, with an intervening central stay 29, the stay is tubular, and forms a means for attaching the stylus-bar to the diaphragm. The body 1 of the casing may be an aluminium casting. The back plate 5 conforms to the shape of the diaphragm, and has a thickened rim 5b with a recess in which an insulating ring 6 of rubber &c. is inserted. A rubber &c. washer 7 is interposed between the rim 5b and a screwed clamping- ring 8. The diaphragm may be so placed in its holder that its convex side faces outwardly, instead of towards the rear, as shown.
Patent GB-871268-A (GB)
Title: Static electricity detection and control system
IPC: G01R5/28
Filed: 1959-08-04
Abstract: 871,268. Automatic control systems for electrostatic discharges; discharging static electricity. ESSO RESEARCH & ENGINEERING CO. Aug. 4, 1959 [Oct. 29, 1958], No. 26545/59. Classes 35 and 38 (4). [Also in Group XXXVI] During the filling of a storage-vessel for liquid materials a valve controlling the rate of admission of liquid to the vessel is adjusted by an automatic control system so as to maintain between predetermined limits the rate at which electrostatic discharges occur within the vessel. As shown, a valve 26, Fig. 1, actuated by a direct-current motor 30 controls the flow of hydro-carbon liquid 38 into a vessel 20. Antennµ 46, 48, 50 supported by a float 44 on the surface of the liquid 38 detect the electrostatic discharges and are connected by a cable 58 to a discharge detector 52 in an explosion-proof case 54. The discharge detector comprises an antennµ-coupler, a batteryoperated transistorized radio-receiver, tuned to about 1.7 mc/s., and an output filter to reduce stray pick-up. The filtered output from the receiver is fed through a cable 70, Fig. 4, to an audio amplifier 60 feeding a one-shot multivibrator 90 triggered by signals above a predetermined amplitude, representative of discharges at or above a particular energy level. The pulses from the multi-vibrator 90 are fed to a gating amplifier 94 which passes those pulses which are non-coincidental with pulses, derived through a detector 84, an amplifier 88 and a multi-vibrator 92, representative of discharges occurring naturally outside the vessel detected by the antennµ 46, 48, 50. The output from the gating amplifier is fed via a pulse-shaper 100 to an electronic counter 102 or via a storage circuit 96, comprising a capacitor and a rectifier, to a graphic recorder 98 and an error amplifier 104. The direct voltage signal from the storage circuit is compared with a reference signal from a source 106 by the error amplifier 104 and the resultant difference signal controls the direct-current motor 30, via a current amplifier 108, so as to position the valve 26 to give that flow of liquid to the vessel that will maintain constant the rate of electrostatic discharge within the tank.
Patent GB-939807-A (GB)
Title: Improvements relating to belt conveyors
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G23/44
Filed: 1960-07-30
Abstract: 939,807. Tensioning endless conveyers. MINING ENGINEERING CO. Ltd. June 30, 1961 [July 30, 1960], No. 26632/60. Class 78 (1). In a tensioning device for a conveyer belt a loop of the belt passes around a take-up drum 13 mounted on a carriage 15 and the position of the carriage longitudinally of a framework 12 is controlled by winch-operated pulleys and cables 19, 23. An hydraulic load-sensitive cell 30 is connected to the cables and pressure is transmitted to gauges 37, 38 which operate switches for causing an electric motor 36 to drive the winch in one direction or the other according to whether the load on the cables is above or below a predetermined value. To prevent operation of the winch if the belt speed drops below a chosen value, e.g. when the conveyer is slowing down and stopping, a centrifugally operated switch driven by the conveyer belt is provided. The switch may also be arranged to permit operation of the winch only in a direction to tension the belt while the conveyer is being started up.
Patent GB-333762-A (GB)
Title: Improvements in the manufacture and production of green vat dyestuffs of the benzanthrone series
IPC: C09B3/32
Filed: 1929-09-04
Abstract: 333,762. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.), Sept. 4, 1929. Chlordimethoxydibenzanthrones are made by treating pure dimethoxydibenzanthrone obtainable according to Specification 181,304, in an inert organic solvent with a chlorinating agent, in presence of a metal salt as catalyst, acid-fixing agents being added if desired. According to examples, pure dimethoxydibenzanthrone obtainable by the process of Example A of Specification 181,304, is chlorinated (1) in nitrobenzene with sulphuryl chloride in presence of iron chloride to give a green dye, and (2) in nitrobenzene, with sulphuryl chloride in presence of iron chloride and quick-lime or magnesium oxide to give a yellower dye. Iron fluoride, ferric sulphate, nickel chloride, cobaltous chloride, and antimony pentachloride are also specified as halogenating catalysts. Specification 205,304 also is referred to.
Patent GB-723004-A (GB)
Title: Hand-signalling device for cyclists
IPC: B62J6/00
Filed: 1951-11-16
Abstract: 723,004. Road-traffic signs. MARSDEN, A. Nov. 17,1952 [Nov. 16, 1951], No. 26866/51. Class 3 (2). [Also in Group XI] A traffic indicator particularly for use by the rider of a motor cycle or pedal cycle comprises a rigid hollow member for securing to the back of a hand of the rider with its forward edge extending over the joints at the roots of the fingers, and having, in its outwardly facing wall, an indicating window behind which is an interior electric light bulb in a circuit which can be completed by a switch positioned for its movable member to be operated to closed position by straightening the said fingers. The hollow member is formed by a moulded plastic base 11 and cover 12 which is retained in position by beaded flanges 18, 19 on the base 11 engaging with coacting recesses in the cover 12. Arrow-shaped windows 15 are provided in the cover 12 by moulding the plastic very thinly in these regions or by cementing window material over arrow-shaped openings. A battery 26 is retained in position by an internal projection 12a on the cover 12 and inturried ends on the flange 18. A bulb 16 is screwed into a conductive holder 23 connected to one side of the battery and arranged such that the end contact 24 of the bulb extends just through an opening 25 in the base plate 11. The switch comprises a resilient conductive strip 29 connected at one end to the battery and positioned to lie just below the contact 24 of the bulb. A resilient insulating strip 30 is arranged athwart the strip 29 such that straightening a finger, as is shown at 35 in Fig. 3, presses strip 30 against strip 29 which touches contact 24 to light the bulb 16. Slots are provided in the base 11 for attachment of straps 14 to secure the device to the hand of the rider.
Patent GB-956602-A (GB)
Title: Lathe or like headstock assemblies
IPC: B23Q1/52
Filed: 1961-07-26
Abstract: 956,602. Toothed gearing; change-speed-gear. UNITED ENGINEERING & FOUNDRY CO. July 26, 1961 [July 29, 1960], No.27073/61. Headings F2D and F2Q. [Also in Division B3] The stationary spindle 53, Fig. 3, on which the face-plate 55 (see Division B3), rotates is secured to the frame 12. The face-plate has an internal ring gear 59 with which meshes diametrically-opposed pinions 61, 62, Figs. 1 and 2. Rack pinion is driven through a separate gear train from a motor 90, Fig. 2. Since these gear trains are identical only that for pinion 61 is described. At the rear end of shaft 63 carrying pinion 61 a gear 65 is arranged driving a pinion 67 on shaft 69. This shaft carries freelyrotatable gears 74, 75, of different diameters which can be clutched selectively to the shaft by operation of clutch 81. These gears mesh with gears 88, 86, respectively, on a shaft 82 which at its rear end carries a gear 91. The latter meshes with a pinion 95 on the motor driven shaft 93.
Patent GB-1148459-A (GB)
Title: Manufacture including purification of reactive metals
IPC: C22B5/06
Filed: 1967-06-12
Abstract: 1,148,459. Purifying metals. OREGON METALLURGICAL CORP. June 12, 1967 [July 26, 1966], No.27080/67. Heading C7D. Sponge of a metal of Group IV of the Periodic Table, (e.g. Ti, Zr or Hf) produced by reducing a halide with a reducing metal such as Mg, Na or K, is purified by passing a stream of an inert gas through a porous bed of the sponge between an upper region above the bed and a lower region below it to carry off the varpourized impurities (preferably in a downward direction through the bed which aids the elimination of molten impurities which are collected in the lower region from whence they can be removed by draining). The reduction is preferably carried out in a reactor with a platform on which the sponge collects while the molten salt products collect below the platform from whence they are drained prior to passing the inert gas, which is preferably preheated to above the melting point of the impurities. The pipe from which the inert gas leaves the lower chamber preferably is upright to inhibit entrainment of molten by products.
Patent GB-158626-A (GB)
Title: Improvements in shuttles of looms for weaving
IPC: D03J5/00
Filed: 1919-11-05
Abstract: 158,626. Attack, G. B., Attack, H., and Attack, J. Nov. 5, 1919. shuttles, cross-pieces F, G, are cast integral with the shell E to support the weft guide pin H and to strengthen the shell. The weft opening J extends along almost the whole length of the shuttle, to prevent cutting of the weft.
Patent GB-928273-A (GB)
Title: Improvements in winding apparatus
Inventor: HINDS RONALD
IPC: H01G13/02
Filed: 1960-08-05
Abstract: 928,273. Collapsible spindles. BRITISH INSULATED CALLENDER'S CABLES Ltd. Nov. 3, 1961 [Aug. 5, 1960], No. 27279/60. Class 100 (1). A two-part mandrel, especially for use in a capacitor winding machine as described in Specifications 928,271 and 928,272, for winding strip material into a roll to form a capacitor, comprises two fingers 31, 32 which fit together side-by-side to form a barrel on which the material is wound. Each finger is integral with a cylindrical support (52, 53), Fig. 1, which slides in a guide tube (54, 55). The guide tubes 54 and 55 carry sockets 56 and 57 into which the fingers 31 and 32 fit. Axial movement is allowed, but rotation of the fingers is prevented with respect to the sockets by pins 58 and 59 passing through slots in the guide tubes 54 and 55 and a pair of sleeves 60 or 61 which slide freely along the guide tubes. The mandrel is driven through pinions 62-65, a pinion 35a and a chain sprocket 35, which run freely about a spindle 36. The guide tubes 54, 55 run in bearings mounted on frame members 68-71. The fingers 31, 32 are moved apart by a mechanism comprising a pair of doubleacting cylindrical cams 76 and 77 mounted on the spindle 36 and each acting on a pair of followers 80 carried by one of two operating arms 78 and 79. A floating ring 83 carried on the sleeve 60 rides in the slots of a pair of freely rotating jaws 81 and 82, Fig. 2 (not shown), carried on arms 78 and 79, respectively, which when operated, withdraw the fingers into their respective guide tubes. Each finger is provided with a hardened steel " anvil," 86, 87, Figs. 1 and 3, which projects a distance of 0.024 inches from the flat face. The free end of each finger is provided with a disc-shaped insert 88, 89 which projects 0.002 inch from the flat face. The fingers will be spaced apart by 0.026 inch and have an overall diameter of 0.6 inch when the free end of each finger fits into the socket (56, 57) associated with the other finger. A central longitudinal groove (not illustrated) is provided in the flat face of at least one of the fingers and, mounted in this groove, is a leaf spring adapted to grip the end of the material to be wound on the mandrel by pressing it against the slot face of the other finger or against a similar spring associated with that finger. In a further embodiment, Figs. 4 and 5 (not shown), for a mandrel having an overall diameter of <SP>5</SP>/16 inch, each finger is provided with an " anvil " at its root in the form of an integral step 288 rising to 0.024 inch above the flat face. A disc-shaped insert is not provided at the free end but a central tapered projection 290 is provided.
Patent GB-956427-A (GB)
Title: Improvements in or relating to the manufacture of reconstituted tobacco
IPC: A24B15/12
Filed: 1962-07-17
Abstract: 956,427. Re-constituted tobacco. P. LORILLARD CO. July 17, 1962 [Sept. 22, 1961], No. 27443/62. Heading A2C. A method of producing tobacco sheets from tobacco fragments comprises dividing pieces of tobacco leaf stems suspended in a liquid into fibres to form a thick semifluid mixture, applying the mixture and other tobacco fines on to a surface to form a layer of the fibres and fines, and drying the layer to form a self-sustaining sheet in which the fibres are interlaced to impart strength to the sheet. Tobacco stems and fragments are fed into a mill 10 where they are broken into lengths of # to ¢ inch. They are then transferred to a mixing tank 11 where water is added to the proportion of 6 to 13 parts of water to 1 part of slivers and stems by weight. Flavouring materials may also be added. The soaked tobacco is discharged into a supply tank 12 from which it is fed to an homogenising device 13 which separates, by means of high frequency vibrations, the tobacco fibres without breaking them into shorter lengths and produces an aqueous suspension of the fibres. Recirculation of the suspension may be effected via a by-pass line 20. The suspension is passed to a further mixing tank 21 where fine particles of tobacco are added. The mixture is then passed through a second homogenising device 22, provided with a by-pass line 23 to a storage tank 24, the moisture content of the mixture in the tank 24 being 6 to 8 parts of water to 1 part of tobacco solids. A pump 25 pumps the mixture, via booster pumps 26, to spray nozzles 27 which discharge it on to an endless moving screen 29 as a layer L. The layer L is dried in a drying tunnel 32. Surplus liquid is returned to the tanks 11 and 24 by lines 31<SP>1</SP> and 28<SP>1</SP>. A small proportion of binder, such as propylene glycol alginate, can be added if desired in any of the tanks.
Patent GB-1019851-A (GB)
Title: Heat sensitive adhesive
IPC: C09J125/06
Filed: 1962-07-18
Abstract: A non-tacky, thermoplastic composition which is adhesive at temperature above 150 DEG  C. comprises polyethylene or polypropylene, a thermoplastic resin such as a polyterpene, polybutene and polystyrene.  Optional ingredients are paraffin or petroleum wax, and hydroxytoluene as antioxidant.  The compositions find application as coatings for bonding materials together.ALSO:Kraft paper, board, polyethylene or polypropylene film aluminium foil, rubber hydrochloride film, regenerated cellulose film or waxed paper is coated with a heat sensitive composition comprising polyethylene or polypropylene, a polyterpene, polybutene and polystyrene.  Optional ingredients of the composition are paraffin or petroleum wax, and hydroxytoluene.
Patent GB-1194402-A (GB)
Title: 2,2,5,5-Tetrasubstituted-4-Oxoimidazolidine Nitroxide and Process for Preparing the Same
IPC: C07D233/38
Filed: 1967-06-15
Abstract: 1,194,402. Nitroxides. SANKYO CO. Ltd. 15 June, 1967 [15 June, 1966], No. 27693/67. Heading C2C. The invention comprises nitroxides of the formula where R 1  and R 2  are alkyl groups or are joined to form a 5- or 6-membered alicyclic ring, which may be substituted by alkyl groups, or a group of the formula where R<SP>1</SP> 1  and R<SP>1</SP> 2  are alkyl groups or together form a 5- or 6-membered saturated alicyclic ring which may be substituted by an alkyl group. The compound is prepared by treating an imidazolidone of the formula with a peroxide, e.g. hydrogen peroxide or a percarboxylic acid. When the hydrogen peroxide is used it is preferred to employ an oxidation catalyst and a promoter. Examples relate to the preparation of cyclohexane-1-spiro-2<SP>1</SP>- (4<SP>1</SP> - oxoimidazolidine - 1<SP>1</SP> - nitroxide) - 5<SP>1</SP> - spiro - 1<SP>11</SP> - cyclohexane, 2,2,5,5 - tetramethyl- 4 - oxoimidazolidine - 1 - nitroxide, 2,5 - dimethyl - 2,5 - diethyl - 4 - oxoimidazolidine- 1 - nitroxide, 1 - methylcyclohexane - 2 - spiro- 2<SP>1</SP> - (41 - oxoimidazolidine - 1<SP>1</SP> - nitroxide) - 5<SP>1</SP> - spiro - 21<SP>1 </SP>- (1<SP>11</SP> - methylcyclohexane), (2,2,6,6 tetramethylpiperidine - 1 - nitroxide) - 4 - spiro- 21 - (4<SP>1 </SP>- oxoimidazolidine - 1<SP>1</SP> - nitroxide) - 5<SP>1</SP> - spiro - 4<SP>11</SP> - (2<SP>11</SP>,2<SP>11</SP>,6<SP>11</SP>,6<SP>11</SP> - tetramethylpiperidine-1<SP>11</SP>-nitroxide)
Patent GB-518355-A (GB)
Title: Process for curling fibres for use in upholstery stuffing
IPC: B68G3/06
Filed: 1938-09-23
Abstract: 518,355. Curling fibres. LEWY, H. S. Sept, 23, 1938, No. 27779. [Class 120 (iii)] [Also in Group IV] Fibres in continuous lengths are wound round a mould, softened by heat or steam, hardened, and removed from the mould in shaped condition in continuous length. Short fibres are connected together lengthwise before the treatment. A mould may be used to produce helical fibres which contain loops in the individual turns of the helix, as in Fig. 4. The fibres may be wound on a plain cylindrical mould, softened, removed, rewound, fixed and finally removed to produce shapes such as in Figs. 1 or 2. Steaming may be effected under partial vacuum, and metal moulds may be used whereby heat stored therein during steaming is sufficient to dry the fibres subsequently. Softening agents may be employed, and may have been incorporated in the fibres.
Patent GB-1235515-A (GB)
Title: Tool changer
IPC: B23Q3/155
Filed: 1968-06-11
Abstract: 1,235,515. Rail system. SUNDSTRAND CORP. 11 June, 1968 [30 June, 1967], No. 27809/68. Heading B7L. [Also in Division B3] A tool changing mechanism for a machine tool having spindles 25, 26 comprises a tool storage magazine in the form of a rail supporting means 46 which describes an oval path and on which are individually and movably mounted tool magazine elements in the form of shuttle cars 50. Each car 50 carries a tool T in an adapter and is moved on the rail 46 by an endless chain and driving dogs. A selected shuttle car is brought to a tool transfer station along the oval path and a transfer arm 36 is adapted to move a section 45 of the rail 46, which carries at least one shuttle car, from the tool transfer station to a position wherein a tool is coaxial with a spindle for a tool exchange. The arm 36 is movable along a track 33 by a motor driven pinion and rack engagement. While the movable rail section 45 is adjacent the spindle 25 or 26 an auxiliary rail section 160 may be raised into the oval path to allow the cars 50 to be moved around the rail 46. The mechanism includes reciprocable means (Fig. 6, not shown) at each side of the gap in the rail 46 accommodating the movable section 45, for moving cars 50 on to and off from the movable section 45, and the movable section 45 itself carries reciprocable means for moving a pair of cars 50 from a first and second position respectively to a second and third position respectively. In operation the movable section 45 carries an empty car 50 and a car 50 carrying a tool T to a spindle 25 or 26. The empty car in the second (middle) position grips the tool already in the spindle, the spindle is raised, the two cars are moved sideways to present the car with the tool T in alignment with the spindle, the spindle is lowered on to the new tool, and the movable section 45 retracted. The cars 50 may be of different sizes and comprise resilient gripping means for a tool and a drive pin which is engageable by drive dogs on the endless chain and which is accurately positioned relative to the centre line of the tool T. The cars engage the rail 46 by means of rollers. The endless chain has less number of drive dogs than there are cars so that some cars are pushed along by adjacent cars. To enable gaps between cars to be closed the drive dogs are resiliently attached to the chain so that they can snap past the drive pins on the cars. The drive to the endless chain is automatically stopped when a car reaches the inlet end of the movable rail section 45. The tool change mechanism may be used by manually arranging the cars in the desired sequence, or each car may carry coding rings (70) (Fig. 8, not shown) to be automatically read by a code reader.
Patent GB-533140-A (GB)
Title: Improvements on tipping gravity davit device for life-boats
IPC: B63B23/04
Filed: 1939-10-13
Abstract: 533,140. Davits. PAMPINELLA, A. Oct. 13, 1939, No. 27837. [Class 115] A tipping gravity davit device comprises a davit 1 and a beam 9 pivoted together and to the deck, the davit having a fixed or pivoted projection 6 for supporting the keel of the suspended boat. As shown, the beam 9, Fig. 2, forms a triangular framework. In normal trim the parts are arranged as shown in full lines in Fig. 2. To withdraw the boat fully inboard the beam 9 and davit 1 are turned about the pivot 8 into the dotted line position, the extent of the turning movement being limited by hooks 16 fixed on the deck. Between each pair of davit devices supporting a boat is a gang-board 20, Fig. 5. This is formed by a metal frame with hand rails on its sides and covered with a wood board. The inner end of the frame is pivoted to the lower ends of two uprights 21 so that it may be tipped to the dotted position. when not in use. In a modification the davits are also pivoted so that they can be laid flat down on the deck. In another modification the davits are mounted high above the ship's deck so as to leave the latter clear for use as a promenade deck. In other modifications the pivots for the davits and beam are not co-axial. In a modification for two superposed boats two beams are secured together to form a single beam 56, Fig. 39. The upper davit 1 is provided directly on the beam 56 and the lower davit 1 is pivoted on to a framework 51 pivoted to the beam.