baber/WOPTO huggingface dataset:
Patent GB-990186-A (GB)
Title: Polyurethanes
IPC: C10M105/74
Filed: 1962-04-12
Abstract: Phosphorus containing polyurethanes are prepared by reacting an organic polyisocyanate with a tris-polypropylene glycol phosphite in which the majority of hydroxyl groups are secondary.  Other polyols such as polyalkylene ether glycols, polyesters, alkylene glycols, di-and tri-alkylene glycols, thiodiglycol, glycerol, trimethylol-ethane and propane, the reaction products of alkylene oxides (e.g. propylene oxide) with polyols (e.g. glycerol, 1,2,6-hexanetriol, sorbitol, pentaerythritol, trimethylolphenol, diethanolamine, castor oil, blown linseed oil, blown tung oil, N,N,N1,N1-tetrakis (2-hydroxyethyl) ethylenedionise, sucrose, triethanolamine and a p-t-butylphenolform-aldehyde resin).  The polyesters may be linear or branched.  Several tris-polypropylene glycol phosphites of various molecular weights are specified.  Many organic polyisocyanates are specified including prepolymers prepared by reacting an excess of an organic polyisocyanate with a polyol as above or with a tris-polypropylene glycol phosphite.  Foams may be prepared by adding water or a fluorinated alkane blowing agent to the reaction mixture.  Specification 942,776 is referred to.ALSO:Surface coatings are obtained by applying to wood, steel or glass (e.g. a petri dish) a dimethylformamide solution of a polyurethane obtained by reacting a trispolypropylene glycol phosphite, with or without a polyoxypropylated glycerol, as with toluene di-isocyanate.  The coatings are heated in an oven for 1 hour to remove the solvent and then air cured for 4 hours. Specification 942,776 is referred to.
Patent GB-571921-A (GB)
Title: Improved means for paving unstable soil in the construction of roads, runways or thelike
IPC: E01C9/08
Filed: 1943-08-31
Abstract: 571,921. Roads, runways &c. TRIGGS, W. W. (Carnegie-Illinois Steel Corporation). Aug. 31, 1943, No. 14210. [Class 107] In the construction of roads, aeroplane runways &c. on unstable soil, a paved area is built up of a number of substantially rectangular flat plates 2 of rolled metal with parallel longitudinal grooves 5 and with annular apertures 6 formed by punching the metal downwardly to provide depending conical flanges of, say, about half the depth of the grooves 5. Adjacent plates are interlocked, preferably by lugs 11 and slots 15 as in Specification 562,681.
Patent GB-703656-A (GB)
Title: Improvements in and relating to magnetrons
IPC: H01J25/54
Filed: 1951-06-18
Abstract: 703,656. Magnetrons. BRITISH THOMSONHOUSTON CO., Ltd. June 18, 1951 [June 22, 1950], No. 14395/51. Class 39(1) A method of operating a magnetron, which may be of the type comprising two opposing anode blocks connected to a parallel wire transmission line or may be of the type having an anode structure as shown in Fig. 3c, comprises reducing the cathode emission and/or increasing the output loading so that the frequency generated will depend on the anodecathode voltage. The cathode emission may be reduced by about 60 per cent from its normal value by means of a variable resistance to the heater supply, and modulating signals may be applied to the cathode circuit through a transformer connected between the cathode and its supply of negative high tension. Specifications 642,931 and 655,041 are referred to.
Patent GB-1112311-A (GB)
Title: Nuclear reactors
Inventor: KNIGHTS HERBERT CHILVERS
IPC: G21C1/00
Filed: 1965-04-05
Abstract: 1,112,311. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 29 March, 1966 [5 April, 1965], No. 14436/65. Addition to 1,06:3,696. Heading G6C. An integral nuclear reactor has a header 2 projecting through the reactor vessel 1, which header is sealed at its inner end 6 and terminates at its outer end in an access port 9 with a cover 10 closing the port, a branch duct 38, 39 connected to the header 2 outside the vessel for connection of the header into a heat utilization circuit, and a plug 3 adapted to be mounted from the cover 10, which plug is movable within the header for sealing it off in the region where it penetrates the vessel. The plug 3 is mounted from the cover 10 by a stem 28 which also carries a sealing ring 20a for sealing a heatexchange tube inlet 17 in the header from a heatexchange tube outlet 19. The header includes a sleeve 25 providing a seat 26 for the plug 3. Should a fault develop in one of the heatexchanger tubes 18, 20, the plug is moved axially within the header until its face 27 seals with the seat 26, the ring 20a being sufficiently flexible to pass through the sleeve 25. In this way, the header is sealed off and, following isolation of the secondary coolant by an isolating valve in the branch duct 38, 39 and depressurization of the primary coolant, the plate 10 and its associated components can be removed to allow removal of the sleeve so that a remotelyoperated plugging tool can be inserted through the access port 9 to effect plugging of the faulty heat-exchanger tube. The use of the plug 3 makes it possible to dispense with local high-pressure containment around the header externally of the vessel.
Patent GB-711726-A (GB)
Title: Improvements in or relating to electric switches having magnetic blowouts
IPC: H01H9/44
Filed: 1952-06-09
Abstract: 711,726. Arc-rupturing in switches; electromagnetic switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 9, 1952 [June 23, 1951], No. 14456/52. Class 38(5) An electromagnetic switch has a contact 10 movable intermittently between two fixed contacts 11, 12, the arcs formed between the contacts being blown out by permanent magnets 16, 17 arranged outside the contacts with their poles so arranged that the flux produced passes across the face of the fixed contacts in opposite directions in order that both arcs may be blown upwards. Contact 10 is carried by an arm 7 pivoted at 8 and carrying an armature 6 co-operating with coils 4, 5, a spring 9 biasing the arm 7 counter-clockwise. The contacts may be arranged in an arc chute with slotted plates, Figs. 3-5 (not shown). In a modification, Fig. 8, two horse-shoe magnets 316, 317, embracing the fixed contacts 311, 312 are used.
Patent GB-1490291-A (GB)
Title: Driver's cab for a commercial motor vehicle having front wheel steering
IPC: B62D35/00
Filed: 1975-04-09
Abstract: 1490291 Radiator grilles; wind deflectors MAGIRUS-DEUTZ AG 9 April 1975 [11 April 1974] 14550/75 Headings B7B and B7J A corrugated metal or plastics cab grille 4 is extended about the front edges of the cab to the sides thereof and is provided with, or forms with the cab wall, air ducts for directing a flow of air along the sides to prevent dirt gathering thereon. In one arrangement, Fig. 2, the corrugations extend along the whole length of the grille and the air ducts are formed at the cab corners by the corrugations and the cab body. Inlet openings 16, 16a are formed by cutting out and bending back blades 18, 19, respectively, from the crests and valleys 13, 14 of the corrugations. In other embodiments (Figs. 6-11, not shown) the ducts are formed by fixing a plain cover-plate to the crests or to the rear of the valleys at the corners thus creating ducts respectively between the plate and the valleys or between the plate and the crests; in the latter case inlet openings are provided as shown in Fig. 2. In a further embodiment, Fig. 12, the crests and valleys merge at the cab corners and the non-corrugated area 22 produced extends about the cab corners. A corrugated plate fitted to these area forms the ducts therewith. In a still further arrangement, Fig. 4, parts of the corrugation crests towards the corners are diminished in height whereas the corrugations at the corners are not, the latter forming with the vehicle body the required ducts. Portions of the crests and valleys are bent rearwardly to provide wider inlet openings 16, 16a.
Patent GB-837512-A (GB)
Title: Novel morphinan derivatives and a process for the manufacture thereof
Filed: 1958-05-07
Abstract: The invention comprises compounds of the general formula <FORM:0837512/IV (b)/1> and their acid addition salts (wherein R is a hydrogen or an alkyl group with one to seven carbon atoms, R1 is a phenyl group optionally substituted by nitro-, methylene- or ethylene-dioxy or alkoxy or alkylmercapto groups with one to four carbon atoms, and X is a carbonyl or hydroxy-methylene group), and the preparation thereof by reacting 3-hydroxy morphinan, or a derivative thereof wherein the hydroxy group is etherified with an alkyl group having one to seven carbon atoms, with a phenacyl halide of the general formula <FORM:0837512/IV (b)/2> (wherein Y is a bromine, chlorine or iodine atom) and, if desired, reducing the carbonyl group in the resulting compound to a hydroxymethylene group. Specification 765,920 is referred to.ALSO:Therapeutic doses of compounds of the general formula <FORM:0837512/VI/1> or pharmaceutically acceptable acid addition salts thereof (wherein R is a hydrogen atom or an alkyl group with one to seven carbon atoms, R1 is a phenyl group optionally substituted by nitro, methylene- or ethylene-dioxy or alkoxy or alkylmercapto groups with one to four carbon atoms, and X is a carbonyl or hydroxymethylene group) may be administered orally or parenterally in conventional forms such as capsules, elixirs, injectables and tablets by incorporation in a conventional carrier and, if desired, adding excipients according to accepted pharmaceutical practice.  Suitable acid addition salts are the sulphate, phosphate, nitrate, tartrate, salicylate, benzoate, malate, citrate and acetate.  Specification 765,920 is referred to.
Patent GB-1184565-A (GB)
Title: Illuminated Sign.
Inventor: PENTNEY GEORGE EDWARD
IPC: G02B3/08
Filed: 1967-03-30
Abstract: 1,184,565. Rear illuminated signs. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 March, 1968 [30 March, 1967], No. 14594/67. Heading G5C. [Also in Division G2] A sign has a housing 51, a Fresnel lens 54 consisting of an inner circular prismatic lens and an outer annular prismatic lens, a tungsten filament lamp 52 located at the focal point of the inner lens and a toroidal shaped fluorescent lamp 53 located in the focal circle of the annular lens and a legend bearing sheet 56 located between the lenses and the lamps. The focal lengths of the lenses preferably lies between ¢ to ¥ of the diameter of the inner circular lens. The lenses are made of polymethyl methacrylate either by machining a flat sheet or by moulding using a flat sheet or moulding powder. The legend bearing sheet is made of a black material so that the legend is only visible when the lamps are lit.
Patent GB-929346-A (GB)
Title: Improvements in or relating to a method of sterilising materials in fragile containers
Inventor: WILKINSON GEORGE ROBERT
IPC: A23L3/10
Filed: 1960-04-26
Abstract: A closed glass or like fragile container and its contents are heated in a sterilizing chamber at a temperature of from 100 DEG  to 150 DEG C. and the container and its contents are then cooled by introducing into the chamber an aqueous cooling liquid at a temperature of below 90 DEG  C. in the form of a mist consisting of droplets having a mean size of between 1 micron and 500 microns, preferably between 50 and 100 microns.  The chamber may be heated by the application of saturated steam; the mist of cooling liquid should then be introduced into the chamber concurrently with compressed air or other gas to prevent the formation of a vacuum in the chamber due to the condensation of the steam.  An example is disclosed.
Patent GB-1174101-A (GB)
Title: High Tenacity Yarns made from Polyethylene Terephthalate, particularly for Sailcloth
Inventor: WEST KENNETH
IPC: D02G3/04
Filed: 1966-04-01
Abstract: 1,174,101. Polyester filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 March, 1967 [1 April, 1966], No. 14623/66. Heading B5B. [Also in Division D1] In a process for making a twisted or plied or folded multifilament yarn from polyethylene terephthalate having an intrinsic viscosity of at least 0-87 and the yarn having a tenacity of at least 7 grams per denier, the melt-spun filaments are maintained at a high temperature below the spinneret, e.g. they are heated in a shroud, the included air temperature of which is maintained at 280-340‹ C., 3-24 inches below the spinneret face, drawn at a temperature above 60‹ C. but below the melting point and reheated during drawing (at least in the final stage thereof) at a temperature above 140‹ C. but below melting point e.g. on a hot plate at 215‹ C. The resulting yarn is twisted or two or more yarns are plied by inserting from 2À5-15 turns per inch twist or folding twist and the yarn or yarns is/are again heated e.g. on a package, at a temperature up to 110‹ C. so as to impart non-torque characteristics thereto. The final yarn has no twist-liveliness but has a potential shrinkage of at least 10% which may be released e.g. in the fabric form, by heating to a temperature of at least 180‹ C.
Patent GB-550121-A (GB)
Title: Improvements in or relating to wrappers for use in hair waving
IPC: A45D7/04
Filed: 1941-11-17
Abstract: 550,121. Haircurling appliances. CARLTON, J Nov. 17, 1941. No. 14763. [Class 131] A wrapper for use in covering tresses or coils of hair to retain them in position around a curler or heating element during a permanent waving operation comprises an outer layer a of stiffened textile fabric an intermediate layer b of metal foil and an inner layer c of absorbent material, the layer c being of less extent than the layers a, b. Specification 355,077 is referred to.
Patent GB-813128-A (GB)
Title: A new or improved resilient seating surface
Inventor: GOSLING ANTHONY FERNANDO
IPC: A47C7/35
Filed: 1956-05-11
Abstract: 813,128. Spring upholstery. ELSON & ROBBINS Ltd. Aug. 12, 1957 [May 11, 1956], No. 14789/56. Class 52(4) In a resilient seating surface an articulated platform, made of inextensible members extending over at least 30 per cent of the area of the frame and connected together to permit relative movement in two mutually transverse directions, is connected at each corner to the corresponding corner of the chair &c. frame by a pair of tension springs 9, 10 which may diverge from the platform to the frame. As shown in Fig. 1, the platform is constituted by a central ring 4 connected by short and long strips 5, 7 connected to rings 6, 8. The springs 9, 10 join rings 6 to connections 12 on the frame and additional springs 11 connect rings 8 to the corners of the frame. In a modification, the front rail of the frame is replaced by a tension spring to give a sprung edge. As shown in Fig. 5, the platform consists of the top coil of a helical spring 19 in the centre, strips 5 and the top coils of helical springs 17. Lower springs 15, 18 connect the chair frame to the lowest coils of springs 17 and these lowest coils to the lowest coil of spring 19. to give a crown to the seating surface. In a modification only the central spring 19 need be provided. For a settee &c., two side by side surfaces may be provided, the opposed sides thereof being joined by a tension spring.
Patent GB-1062555-A (GB)
Title: Purification of aliphatic carboxylic acids
Inventor: FISH LESLIE DAWSON
IPC: C07C67/00
Filed: 1964-04-09
Abstract: A process for the recovery of substantially anhydrous lower aliphatic mono-carboxylic acids from the product of reaction of non-aromatic hydrocarbons of 4 to 8 carbon atoms with oxygen, comprises removing low and high boiling products from the crude oxidation product to leave an aqueous fraction containing C1- 3 aliphatic monocarboxylic acids together with corrosive products, subjecting this aqueous fraction to extraction with di-iso propyl ether to give an extract substantially free from corrosive products, and thereafter distilling the extract to remove the water and isopropyl ether as an overhead fraction and recovering a mixture comprising substantially anhydrous C1- 3 aliphatic monocarboxylic acids as a base product. While the process of the invention can be applied to lower aliphatic mono carboxylic acids produced by the liquid or gas phase oxidation of any feedstock comprising non-aromatic hydrocarbons of 4 to 8 carbon atoms, the acids obtained from the liquid phase air oxidation of paraffins such as naphtha are especially suitable.  The crude aqueous acid fraction preferably contains from 20% to 50% by weight of water before it is extracted.  The mixed acids may also contain butyric acid. The overhead fraction from the distillation stage can be combined with the aqueous residue from the extraction stage and fractionally distilled to recover the ether for recycling. The process is illustrated by reference to a flow sheet (not shown).
Patent GB-1100322-A (GB)
Title: Method of insulating a conductor for high-voltage electrical machines
IPC: H02K3/34
Filed: 1965-03-31
Abstract: 1,100,322. Conductors. LICENTIA PATENTVERWALTUNGS-G.m.b.H. 31 March, 1965 [31 March, 1964], No. 14859/65. Heading H1A. Individual conducting strands, to be formed into a conductor for high voltage windings, are insulated from each other by cavity-free synthetic resin bonded fibre by first applying to the strand a solvent-free layer of the bonding resin, heat treating the coated strand until the bonding resin has been sufficiently hardened that when the fibrous material is applied, it does neb contact the metal, applying a layer of adhesive containing a hardener, assembling the insulated strands and heating to cure the adhesive and also to complete the curing of the bonding resin by hardener diffusing from the adhesive. The initial curing of the bonding resin also hardens it sufficiently to withstand stresses during subsequent shaping into a winding. The conducting strand, preferably copper, is first made metallically bright. Both the bonding resin and the adhesive may be phenolic epoxy resins, in the latter case containing quartz or mica as a filler.
Patent GB-926703-A (GB)
Title: System of packing endless lengths of flexible or semi-flexible material for transportation
Inventor: SAUNDERS ALBERT HENRY
IPC: B65H75/00
Filed: 1960-04-28
Abstract: 926,703. Packing fabrics. GEORGE CHRISTIE Ltd. April 28, 1961 [April 28, 1960], No. 14902/60. Class 42 (2). An endless length of fabric, e.g. a wire-cloth for a paper-making machine, is packed for transportation using two rollers 1, 2 and a third roller 3 of larger diameter than the rollers 1, 2 with the roller 2 being located in a longitudinal groove 4 in the roller 3 to present a substantially cylindrical surface in conjunction therewith and around which the fabric is wound, the roller 1 being inserted between the plies of the fabric to retain the final bight thereof and secured to the rollers 2, 3 by a device 9. In one embodiment, Fig. 1, the rollers 1, 2 are inserted between the plies of the cloth 7, the roller 2 is positioned in the groove 4 and the cloth wound therearound. In a second embodiment, Fig. 2, the rollers 1, 3 are inserted between the plies, the roller 2 is located in the groove 4 to hold the cloth therein and the cloth is wound therearound.
Patent GB-910784-A (GB)
Title: Electromagnetically operable sealed switch
IPC: H01H11/00
Filed: 1959-05-01
Abstract: 910,784. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. May 1, 1959 [May 8, 1958], No. 14958/59. Class 38 (5). A sealed contact device similar to that described in Specification 838,765 has the change-over spring end 10 divided at 26 with a flat spring 23 spot welded to both parts and bent at an angle a so as to engage the side of the tube 14 and force the contacts 3, 6 together with a predetermined pressure.
Patent GB-914140-A (GB)
Title: Improvements in or relating to heat exchanger tubes
IPC: F28F1/12
Filed: 1960-04-28
Abstract: 914,140. Tubular heat-exchange elements. HUET, A. April 28, 1960 [April 28, 1959], No. 15031/60. Class 64 (3). [Also in Group XXII] A heat-exchanger tube of metal or ceramic has discrete raised or hollowed portions, e.g. of a height or depth of one-tenth of a millimetre to one millimetre, disposed irregularly over its surface. There may be dimples and grooves, or grooves c alone, Fig. 1. There may be dimples h alone, Fig. 2, which are grouped in greater density at the inlet end of the tube or which vary in depth. The dimples or grooves may be produced by roughened rollers or the dimples produced by sand on the rollers. If the tube is produced by extrusion or drawing, grooves may be produced by oscillating combs. Transverse grooves may be produced by die-forming or hammering. The tubes may have fins and these can be tangential or diametral. In a heat-exchanger the tubes may be arranged so that the passages between them vary in section and direction, the tubes having double-convex sections with faces of unequal curvature and being staggered. Undulated walls may be disposed between the tube rows, or sheaths, corrugated symmetrically or otherwise, may be arranged coaxially of the tubes, variations in corrugation pitch corresponding to variations in the raised or hollowed portions on the tube surface.
Patent GB-766638-A (GB)
Title: Process for the manufacture of salts of sulphuric acid esters of leuco vat dyestuffs of the anthraquinone series
IPC: C09B9/02
Filed: 1953-05-29
Abstract: Water soluble salts of sulphuric esters of leuco vat dyes difficult to esterify (as defined in Specification 719,621) are made by treating the dye in a mixture of dimethyl formamide and/or diethyl formamide with diethyl cyclohexylamine and/or at least one diethyl-(monoethylcyclohexyl)-amine, said mixture containing 10-70 per cent by weight of said amine or amines, and in presence of at least one finely divided metal of the group:- iron, cobalt, copper and copper alloys, with chlorsulphonic acid in the form of its addition products with said bases, and converting the sulphuric ester compound obtained into a water-soluble ester salt. At least 1.4 mols amines are used per 2 mols, chlorsulphonic acid, and if less than 4 mols acid is used, at least 2 mols amines should be present per 2 mols acid.  The metal may be etched prior to the esterification, e.g. by treatment with the esterification reactants other than the dye. In examples, the process of the invention is applied to 1.4- or 1.5-dibenzoylaminoanthraquinone, 1.4 - (di - p - chlorbenzoylamino) - anthraquinone, 1 - (41 - dimethyl - sulphonamide - benzoyl) - 4 - benzoylamino - anthraquinone, carbazolized di - (51 - benzoylamino - 11 - anthraquinonyl) - 2.8 diaminochrysene, and the anthrimide from 1.3 - dichloro - 2 - methyl - anthraquinone and 1.4 - monobenzoyl - diaminoanthraquinone.  Specifications 610,117 and 745,365 also are referred to.