baber/WOPTO huggingface dataset:
Patent GB-1386218-A (GB)
Title: Splice cases for electrical cables
IPC: H01R4/64
Filed: 1973-04-27
Abstract: 1386218 Electric couplings RELIABLE ELECTRIC CO 27 April 1973 [3 July 1972 20124/73 Heading H2E To protect a cable splice and to bond electrically and ground the sheaths, two half-tubular casings 10a, clamped by flanges 18 face to face, form a tubular case with coned ends. One section carries an insulated bonding strap 24 lying against the wall, with end plates 26 making contact with cable shields 58 via metal sheath clamps 66 slipped inside the split ends of shields 58 over wrapping layer 54. Projections 69 on clamps 66 penetrate shields 58 to ensure contact; clamps 66 are turned back at 68 over slit outer insulating sheath 60, making contact with metal plates 26 spot welded to bare ends 30 of strap 24. The cable ends between the splice and clamps 66; including tabs 64 of insulation 60, are wrapped with vinyl tape 70. Strap ends 30 are stuck with adhesive to the inside of one half casing 10a, itself made of plastics with moulded-in metallic moisture barrier in its wall. Clamping the half casings together enforces contact between plates 26 and turned back ears 68 on clamps 66. Sealing strip 22 prevents ingress of moisture after clamping; the cables passing through the casing ends are tape wrapped 72 and pass through sealing washers 74 and ribs 80. An entry valve for gases or grease, combined with ground terminal, is provided on the half casing carrying strap 24, and insulated jumper wire 38 runs from the strap to the valve. Optionally a second exit valve may be provided on the other half casing.
Patent GB-1383080-A (GB)
Title: Spinning or twisting ring
IPC: D01H7/62
Filed: 1972-05-01
Abstract: 1383080 Ring spinning W REINERS and H J FURST [trading as REINERS & FURST] 1 May 1972 [3 May 1971] 20161/72 Heading DID A ring for a ring spinning machine comprises slit shaped lubricant orifices 4 facing the interior of the ring and passing wholly or partially through vertical and horizontal traveller-contacting surface(s) 2, 3 of the ring. Sintered bronze lubricant distributors 5 can be provided in the ring orifices 4. The lubricant can be supplied to the outer side of the ring by a wick.
Patent GB-836785-A (GB)
Title: Improvements relating to control arrangements for electric motors
Inventor: BOND HAROLD WILLIAM
IPC: H02P7/292
Filed: 1955-07-12
Abstract: 836,785. Controlling D.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. Oct. 10, 1956 [July 12, 1955], No. 20181/55. Class 38 (3). A system for controlling a D.C. motor M comprises valves A, B, or banks of valves arranged to vary the direction and magnitude of current from separate D.C. supplies through the armature in response to a control signal applied across C, C1. Valves A, B are normally biased at cut-off, the control signal being applied directly between grid and cathode of valve A, also through a voltage inverter, shown in the dotted rectangle, to valve B. Positive control signals cause valve A to conduct, while grid of valve B is driven more negative. Similarly, valve B conducts for negative control signals. The voltage inverter comprises a double triode V1 operating as a cathode follower square-wave generator, the output from which is rectified and fed to valve B through a biasing battery E1. Specification 827,956 is referred to.
Patent GB-187052-A (GB)
Title: Improved manufacture of alcohol ether mixtures
IPC: C12F5/00
Filed: 1921-07-27
Abstract: 187,052. Wade, H., (Lichtenthaeler, F. E.). July 27, 1921. Liquid fuel.-Alcohol-ether mixtures are made from raw fermented sugary or starchy materials such as molasses, grain, or potatoes. Alcohol is distilled from the fermented mash in still 20, and a part of it converted into ether which is subsequently condensed and mixed with, or absorbed in, the remaining alcohol. The mash is led from a, supply tank 10 through a preheater 14 to the still 20, the latter being fitted with a reflux condenser 22. Purified alcohol may be withdrawn at 21, 23 and passed to the ether generator 26, where it is treated with sulphuric acid. Alternately, the whole of the alcohol generated may be condensed in condenser 31, and a part led by pipe 36 to the generator 26, or a part of the alcohol vapour from the flux condenser 22 may be led through pipes 24, 28 to the generator 26. Alcohol condensed in condenser 31 is also passed by pipe 32 to the absorbing-tower 34. Ether vapours &c. are neutralized and concentrated in scrubber 40, fractionating column 42, and are condensed in condenser 46. In hot climates, where warm (80-85‹ F.) condensing water only is available, this condensation is partial, and the uncondensed vapours are absorbed by water-cooled alcohol in the tower 34. The ether from condenser 46 is then mixed with the alcohol or the dilute alcohol-ether mixture from tower 34. In some cases the ether may be directly absorbed in the alcohol.
Patent GB-1145102-A (GB)
Title: Apparatus for burning refuse and the like
Inventor: ZINN ROBERT EDWIN
IPC: F23G5/16
Filed: 1966-05-06
Abstract: 1,145,102. Incinerators. ARTHUR D. LITTLE Inc. 6 May, 1966, No. 20271/66. Heading F4B. Refuse is burnt on a grate in a primary combustion chamber 10, ash is withdrawn from an outlet 20 and the gases are burnt in a secondary combustion chamber 12. The combustion chambers 10, 12 have metal shells and selfsupporting refractory brick linings, and are cooled by combustion air passing between the outer shells and the linings, or by the ambient air. The grate is arranged to move the burning refuse through the primary combustion chamber 10 and the ash is removed from below the grate by water flushing or by a drag chain. After completion of combustion in chamber 12, the hot gases are cooled by water sprays in a chamber 56 and passed to cyclone separators 71. A damper 89 in the flue beyond an induced draft fan 84 is controlled in accordance with the draft in the primary combustion chamber. Air for combustion is preheated in the jackets of the combustion chambers 10, 12, and the air supply fan 38 is controlled in accordance with the temperature in the combustion chambers. The air supply in the primary combustion chamber 10 is partly below the grate, and partly through passages in the chamber lining, and that to the secondary combustion chamber 12 through passages in the lining, these passages being arranged to give turbulence.
Patent GB-1476112-A (GB)
Title: Formation of lugs on ingot moulds
IPC: B22D7/06
Filed: 1975-05-14
Abstract: 1476112 Making ingot moulds HILTI AG 27 Feb 1976 [14 May 1975] 20283/75 Headings B3A and B3F A lifting lug for an ingot mould 10, which enables the mould to be lifted by tongs, is fabricated by securing a plate 13 to the mould by fasteners 14 driven into the mould wall, welding parallel shaped plates 15 to the plate, and welding a consolidating plate 17 to the outer edges of the plates. In place of a single plate 13, several plate sections may be secured to the mould and then welded to each other.
Patent GB-1433782-A (GB)
Title: Contact lens
IPC: G02C7/04
Filed: 1973-04-28
Abstract: 1433782 Contact lenses J D M VIGKERAGE 11 April 1974 [28 April 1973] 20313/73 Heading G2J A contact lens comprises a back surface having a continuous variation of meridional curvature with meridional angle about the optic angle, in which there are two meridions oblique relative to the principal meridions, the said two meridions being of greater curvature relative to the curvature which would normally exist in the two meridions having the same angle about the optic axis relative to the principal meridions in a toric, helic, or conic back surface having the same curvatures in its principal meridions as the principal meridions of the said contact lens back surface. The two meridions of relatively greater curvature are used to contain four formal points of nominal contact between the back surface and the cornea on which the lens is worn.
Patent GB-1399961-A (GB)
Title: Method of forming a patterned transparent electro-conductive film  on a substrate
IPC: H05K3/04
Filed: 1973-04-30
Abstract: 1399961 Printed circuits ASAHI GLASS CO Ltd 30 April 1973 20346/73 Heading H1R [Also in Division H4] A method of forming a patterned transparent electro-conductive film on a substrate comprises (a) printing a paste containing a heat decomposable vehicle and inorganic oxide particles over predetermined parts of the substrate, and drying the paste, (b) depositing a low valency metal oxide on the pasted substrate, and (c) heating the substrate in an oxidizing atmosphere such that the low valency oxide is oxidized to a higher valency transparent electro-conductive metal oxide and the vehicle is decomposed whereby the inorganic particles in the printed paste, and the transparent metal oxide deposited theron, can be removed, for example by wiping off with a soft cloth. The paste is screen printed on those regions of the soda-lime silicate glass substrate on which the transparent film is not required and may comprise 40-80 wt. per cent of particles of titania, silica, zinc oxide or alumina of 10-0À01Á average diameter and 60-20 wt. per cent of the vehicle which may comprise 0À05-10 wt. per cent of a resin binder in a solvent with up to 0À1 wt. per cent of a surfactant. In an example the paste comprises 40-70 wt. per cent of finely powdered TiO 2  and 60-30 wt. per cent of a solution of 0À5-4 wt. per cent of nitrocellulose in butyl carbitol acetate. The transparent conductive film may comprise a high valency oxide of one or more of In, Sn, Zr and Cd, and is preferably 15-30 wt. per cent SnO 2  and 85-70 wt. percent In 2 O 3 . A layer of low valency tin and indium oxides may be formed by vapourising tin and indium metal in a vacuum chamber to which oxygen at 10<SP>-2</SP>-10<SP>-3</SP> torr is supplied, the reaction taking place at room temperature. The substrate is then heated in an oxygen-containing atmosphere at 350-550‹ C. to convert to the higher oxides and evaporate the vehicle. Alternatively a mixture of low valency tin and indium oxides may be evaporated directly from a boat in a vacuum chamber on to the substrate. The transparent electrode plate may be used for liquid crystal display apparatus.
Patent GB-710122-A (GB)
Title: Mono adducts of polyisocyanates and phenols
IPC: C07C271/06
Filed: 1951-08-29
Abstract: Mono (aromatic urethane) substituted organic isocyanates resulting from the reaction of approximately equal molecular proportions of a polyisocyanate and a monohydric phenol (see Group IV (b)) are used as curing or cross linking agents in diisocyanate modified polyesters and polyesteramides.  Specified mono adducts include those formed from mono-alpha-phenyl ethyl phenol and 4:41-diphenyl diisocyanate, 1-methyl-2:4-phenylene diisocyanate, 1:5-naphthalene diisocyanate or hexamethylene diisocyanate.  Many other phenols and polyisocyanates are specified.ALSO:The invention comprises mono-(aromatic urethane) substituted organic isocyanates and their preparation by reacting approximately equimolecular amounts of an organic polyisocyanate and a monohydric phenol, the hydroxyl group in the phenol being the only group in either reactant which possesses a reactive hydrogen atom. Specified polyisocyanates include aliphatic diisocyanates such as hexamethylene diisocyanate, aromatic polyisocyanates such as the 4 : 41-diphenyl, 1-methyl-2 : 4-phenylene, and 1 : 5-naphthalene diisocyanates and cycloaliphatic polyisocyanates.  Specified phenols include phenol, the alkyl substituted phenols, the chloro and nitro phenols and aralkyl substituted phenols such as mono-alpha-phenyl ethyl phenol.  Preferably the reaction is carried out by dissolving the phenol and an excess of the polyisocyanate in an inert solvent and allowing to stand.  An example describes the preparation of the mono-adduct of 4 : 41-diphenyl diisocyanate and mono-alpha phenyl ethyl phenol.
Patent GB-779802-A (GB)
Title: Production of organic acid esters of cellulose
IPC: C08B3/22
Filed: 1955-07-14
Abstract: In the manufacture of organic acid esters of cellulose wherein the esterification is effected in the presence of a water-immiscible solvent to dissolve the ester as it is formed, the solution of the ester so obtained is subjected to solvent extraction with an aqueous medium to remove the water-soluble materials, sufficient of the water-immiscible solvent being present to prevent precipitation of the ester.  The ester may then be precipitated, or alternatively the solution may be employed directly for the manufacture of filaments or films or for coating purposes.  Cellulose may be pretreated with an aliphatic acid and esterified with an organic acid anhydride in the presence of a catalyst and the water-immiscible solvent by the usual methods followed, if desired, by a ripening operation, specified water-immiscible solvents being nitro-methane, m-cresol, cyclopentanone, pyrrole, furfural, trichloroethanol and chlorinated hydrocarbons such as methylene chloride, tetrachloroethane, trichloroethane and chloroform.  If desired, more water-immiscible solvent may be added to the solution prior to solventextraction. Specified aqueous solvent-extraction media are water and a mixture of water with methanol, ethanol, n-propanol, isopropanol, ethyl acetate, pyridine, acetone or methyl acetate.  Extraction may be effected as a twophase batch process or as a continuous process in an extractor column with co-current or counter-current flow of the liquids. Surplus water may finally be removed from the solution by distillation or by treatment with a dehydrating agent.  The spinning properties of the cellulose ester solution may be improved by addition of, for example, a lower aliphatic alcohol such as methanol, ethanol, n-propanol or iso-propanol.  Pigments, dyes, plasticizers and fire-retardants may also be added.  The process is applicable to the manufacture of cellulose triacetate, secondary acetate, propionate, butyrate, benzoate, acetate-formate, acetate-propionate and acetate-butyrate.  Examples are given.
Patent GB-717999-A (GB)
Title: Improvements in or relating to permanent shuttering for walls, pillars and the like
IPC: E04B2/72
Filed: 1952-08-18
Abstract: 717,999. Lathing. VALASEK, L. Aug. 18, 1952 [Aug. 23, 1951], No. 20735/52. Class 20 (4) Permanent shuttering for walls, pillars and the like consists of wire netting 3 on which are cast rods 1 of cement mortar, gypsum plaster, or other materials which set hard on drying, the rods extending substantially the whole distance from one margin of the wire netting to the opposite margin thereof. As shown the rods 1 are of irregular pentagonal cross-section the angles thereof which lie against the wire netting being not more than 90 degrees and the netting dividing the cross section into a triangular or wedge-shaped portion and a trapezoidal portion. The angles may be rounded-off instead of being sharp as shown. The inner wedge-shaped portions of the rods are provided with recesses 2 to key to the concrete. The shuttering may also be used as a support for plasterwork, such as ceilings or thin partition walls, being coated with plaster on one or both sides.
Patent GB-761183-A (GB)
Title: Improvements in or relating to refuse collecting vehicles
Inventor: DEAR ALEXANDER THOMAS CAMERON
IPC: B65F3/20
Filed: 1954-07-16
Abstract: 761,183. Refuse vehicles. LEWIN ROAD SWEEPERS, Ltd. July 11, 1955 [July 16, 1954], No. 20737/54. Class 78 (4). A refuse vehicle is provided with a closure member 15 which is movable about pivots 16 by a ram 18, and in which is mounted a feed plate 23 adapted to be moved about pivots 25 by a ram 28 and a linkwork 26, 27, 37. In operation, refuse is deposited on plate 23 through a door 33, the door is closed by movement of a handle 34, and the plate is moved anti-clockwise to transfer and compact the refuse in body 14. Discharge is effected by simultaneous actuation of ram 18 and a ram (not shown) which tips body 14. The rams 18, 28 may be single or double acting or be replaced by screw jacks; and the feed plate may be operated by a pair of rams 28 each acting through a linkwork 26, 27, 37.
Patent GB-1277860-A (GB)
Title: Improvements in or relating to shims or wedges of adjustable thickness
Inventor: CAILLAS JEAN ALIN ROBERT
IPC: F16M7/00
Filed: 1971-04-19
Abstract: 1277860 Wedges and shims J A R CAILLAS 19 April 1971 [2 Feb 1970] 20781/71 Heading F2K A wedge or shim of adjustable thickness comprises removable sheets 1, 2 with or without a solid core 3. The sheets 1 and 2 are of thickness such that the thickness of the sheets 2 is a multiple of that of the sheets 1. The different thicknesses are indicated by different colouring or markings. The sheets may be metal such as steel, brass, aluminium or stainless steel and are interconnected so as to be readily detachably by gluing, welding or other means.
Patent GB-439310-A (GB)
Title: Improvements relating to levers for actuating bowden wire and like mechanism
IPC: B62L3/02
Filed: 1934-07-16
Abstract: 439,310. Levers; Bowden mechanism. WEBB & CO., Ltd., H. C., and TAYLOR, F. W., Tame Road, Witton, Birmingham. July 16, 1934, No. 20784. [Class 80 (iii)] [See also Group XXXI] A bell-crank or like lever, adapted more particularly for actuating cycle and other brakes through the medium of Bowden mechanism, comprises a pair of parts one of which can be pivotally adjusted relatively to the other part without affecting the position of the latter. A sheet metal bracket b is secured to the handle bar a by a clip c hinged to the bracket at one end and connected to it at the other end by bolt and nut e, f. The bracket is folded to form two sides g, the closed end forming an abutment for the sheath h of the Bowden mechanism. One of the lever parts consists of a pair of plates i adapted to receive between them the other part j, and also a trunnion l to which the flexible cable k is attached. Both lever parts are pivoted on a bolt n, and each part has one or more holes o through which a pin p may be passed to secure the parts in the position required. An extended range of adjustability may be obtained by reversing the part j.
Patent GB-677008-A (GB)
Title: Improvements in and relating to the recording of television pictures upon cinematograph film
IPC: G03B9/10
Filed: 1949-08-12
Abstract: 677,008. Kinematograph apparatus. BRITISH BROADCASTING CORPORATION, and KEMP, W. D. July 31, 1950 [Aug. 12, 1949], No. 20978/49. Class 97 (i). [Also in Group XL (b)] In kinematograph apparatus for recording television pictures produced on the screen of a receiving cathode-ray tube, means are provided for alternately producing on the film one image and two images of the picture on the cathoderay tube screen, the film pull-down time between each recording on the film occupying one half a television-picture interval, so that three images are produced on the film in the time that three complete pictures are presented on the screen. The camera comprises a lens system associated with two relatively angularly displaced mirrors, Fig. 10 (not shown), capable of producing a double image of the screen on the film together with a suitably elongated film gate. A first shutter arrangement comprises two contra-rotating discs 28, 29, each as shown in Fig. 6, and driven from the continuously rotating shaft 25 which is itself driven from shaft 19 which is directly coupled to the driving motor (not shown). A second shutter comprises a plate which is reciprocated in front of the upper half of the film gate by means of a rod 44 which is eccentrically coupled to a rotating disc 45 coupled through gearing to the shaft 25. Two cams are provided in the form of grooves 54 and 65 encircling the shaft 25. A cam-follower seated within groove 54 is connected with the film-gate so that during the periods when the film is stationary it is moved forward to cause locating pins to pass through the sprocket holes on the film, and during the film pull-down times the gate is retracted so that a pull-down claw can engage the film. A cam-follower seated within groove 65 actuates the pull-down claw so that the film is alternately pulled down by one frame height and two frame heights according as to whether one or two images were recorded on the film in the immediately preceding recording interval. The camera described comprises three positivelydriven film-driving sprockets coupled to shafts 71A and 71C, themselves driven from the shaft 25 ; the film spools are also positively driven.
Patent GB-300672-A (GB)
Title: Improvements in or relating to processes for the manufacture of artificial threads and filaments by the dry spinning method
IPC: D01F2/30
Filed: 1927-08-10
Abstract: 300,672. Ellis, G. B., (Soc. pour la Fabrication de la Soie Rhodiaseta). Aug. 10, 1927. Apparatus for making filaments ; cellulose carboxylates, processes for making filaments from.-For the production by the dry-spinning method of artificial silk filaments not exhibiting a scintillating effect. the solution of cellulose acetate, &c. to be spun, is heated before its extension while a cold evaporative atmosphere is introduced into the cell at the region of the extension nozzles and in such a manner that it moves in the same direction as the filaments. The evaporative medium may be air-drawn from the spinning room, and it may be subjected to a supplementary cooling inside the cell; the atmosphere is preferably admitted into the cell through apertures of large dimensions. As shown, the solution before extrusion at the nozzles 2 passes through a heater 3; cool air is admitted to the cell 1 through inlets 4, and in this form passes along with the filaments during the whole of their travel through the cell, being heated at the later part in order to ensure evaporation of the solvent, by a heater 5 surrounding the cell. Operating in this manner, filaments of less than one denier may be spun, and speeds of spinning of 400 metres per minute or higher may be employed. Specifications 236,393 and 248,696 are referred to.