baber/WOPTO huggingface dataset:
Patent GB-377573-A (GB)
Title: Improvements in and relating to methods of fixing substances to vitreous articles
IPC: C09K11/02
Filed: 1932-01-26
Abstract: 377,573. Fixing substances to glassware. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Winninghoff, W. J. ; 407, Clark Street, South Orange, New Jersey, U.S.A.) Jan. 26, 1932, No. 2390. Convention date, Jan. 26, 1931. Drawings to Specification. [Class 56.] A process for fixing a powdered or granular substance to the interior of a hollow vitreous body comprises grinding to an impalpable powder a soft glass having a lower fusing temperature than that of the body, suspending the ground glass in a volatile liquid, introducing the liquid into the hollow body and draining it off, dusting the surface while still moist with the powder or granules to be attached, and then heating the body in order to fuse the layer of soft glass partly or completely. The powder or granules may also be applied by mixing it with the suspended ground glass instead of dusting it on to the moist surface. The process may be used to affix carborundum to the inner surface of the cathode bulb of a mercury vapour arc lamp, or for coating with fluorescent substance the inner surface of the bulb of a cathode ray oscillograph. The Specification as open to inspection under Sect. 91 (3) (a) states that the glass of lower melting point may be produced by causing a chemical or physical change in the surface of the vitreous body. For instance, a lead glass body may be coated with lead oxide and then heated so that a surface coating is formed of glass richer in lead and having a low melting point than the rest of the body. This subjectmatter does not appear in the Specification as accepted.
Patent GB-596796-A (GB)
Title: Improvements in or relating to magnetic recording devices and magnetizing heads therefor
IPC: G11B5/03
Filed: 1945-01-31
Abstract: 596,796. Magnetic recording-devices. ARMOUR RESEARCH FOUNDATION. Jan. 31, 1945, No. 2455. Convention date, Jan. 20, 1944. [Class 40 (ii)] [Also in Group XXXV] In a magnetic recording and reproducing device for steel wire or tape, consisting of a recording head carrying audio-frequency current and an erasing head carrying high-frequency current, the magnet cores are associated in such a manner that a component of the highfrequency current in the erasing head is induced in the recording head during recording. In one form, as shown in Fig. 2, the magnet core is constructed integrally and carries the recording medium 3 in a V-shaped groove. High-frequency current from a source 23 is fed to the coil 21 of the erasing head, and the resulting flux as indicated by the dotted lines 33 partially links with the coil 26 of the recording head as indicated by the path 34. During recording, the switch 25 in the leads 22, 24 connecting the source of high-frequency current 23 is closed, but it is opened during reproduction. In another form, conductors passing transversely through the magnet-gaps may be used instead of coils for the recording and erasing heads, as shown in Fig. 5, and the surface of the core contacting the recording medium may be made arcuate in shape to reduce wear. Erasing heads may be placed on both sides of the recording head with suitable switching so that recording or reproduction may take place in either direction of travel of the medium.
Patent GB-1081142-A (GB)
Title: Ceramic substances which are resistant to sudden changes in temperature
IPC: C04B33/04
Filed: 1965-01-20
Abstract: A ceramic material with a very small coefficient of thermal expansion is characterized by a composition consisting of Al2O3, SiO2 and TiO2 in the molar ratio 1:0.05-1.5:0.5-1.5 respectively. In one modification up to 25% of the molar amount of SiO2 may be replaced by B2O3 and/or up to 45% by P2O5.  In other modifications up to 12% by weight of alkaline earth metal oxides, zinc oxide and/or lithium oxide are added as fluxing agents based on the total weight of the basic composition, and/or up to 48% by weight of refractory oxides such as thorium, zirconium or rare earth (cerium or yttrium) oxides, and refractory carbides, nitrides, borides or sulphides.  In examples the SiO2 and a corresponding proportion of the Al2O3 component are introduced as kaolinite, and the remaining Al2O3 and the TiO2 as the oxides per se.
Patent GB-654408-A (GB)
Title: Improvements in the manufacture of aluminium alkoxides
Inventor: COATES ARNOLD COULSON
IPC: C07C31/32
Filed: 1948-01-27
Abstract: Aluminium alkoxides are obtained by reacting vapours of alcohols containing not more than four carbon atoms with heated aluminium-bearing materials in the presence of a catalyst as defined below, the temperature to which the aluminium-bearing material is heated being such that the aluminium alkoxides are formed in the vapour phase.  The catalyst is defined as anhydrous cupric chloride or a substance which is known to catalyse the reaction in the known methods for producing aluminium alkoxides from aluminium and an alcohol, but which will not volatilize at the reaction temperature. The alcohol may be normal, secondary, iso or tertiary.  The aluminium-bearing materials are preferably comminuted and include both pure and impure aluminium as well as aluminium alloys and mixed alloy scrap.  The alcohol vapour is preferably carried forward in a stream of nitrogen or hydrogen and the process can be carried out in a continuous manner, the alcohol vapour being passed in counter - current to the aluminium - bearing material as this is advanced through the reaction space. The reaction may be carried out under reduced pressure, atmospheric pressure or higher pressure.  The alkoxide vapour formed may be hydrolysed to hydrate of alumina, e.g. by blowing steam into the vessel into which the vapour or smoke is delivered from the reaction space.  The alcohol liberated can be recovered by distillation and returned to the process.  In an example, a finely divided aluminium-copper alloy mixed with anhydrous cupric chloride is fed into one end of a reaction vessel heated to 200-300 DEG  C. and passed through the vessel by a helical screw device.  Ethyl alcohol vapour at atmospheric pressure and carried in a stream of nitrogen is passed counter-current to the metal, the rates of feed being controlled so that pure aluminium ethoxide distils over at the outlet end of the vessel.  The Provisional Specification is not restricted to alcohols containing up to four carbon atoms but refers to the use of alcohols generally.ALSO:Hydrate of alumina is obtained by hydrolysing the aluminium alkoxide vapour obtained by reacting the vapour of an alcohol containing up to four carbon atoms with heated aluminium-bearing material in the presence of a catalyst the temperature to which the aluminium-bearing material is heated being such that the aluminium alkoxide is formed in the vapour phase (see Group IV (b)).  The hydrolysis may be effected by blowing steam into the vessel into which the alkoxide vapour is delivered from the reaction space.  The Provisional Specification is not restricted to the use of alcohols containing up to four carbon atoms but refers to alcohol vapours generally.
Patent GB-1248504-A (GB)
Title: Magnetic recording element
Inventor: DELMORE PAUL JOHN
IPC: C08L75/04
Filed: 1969-01-16
Abstract: 1,248,504. Polyvinyl acetal/aziridine polymers. EASTMAN KODAK CO. 16 Jan., 1969 [19 Jan., 1968], No. 2524/69. Headings C3P and C3R. [Also in Division H1] A coating composition for a magnetic recording element comprises magnetic particles dispersed in a binder comprising the reaction product of a polyvinyl acetal and an aziridineterminated polymer which has a mol. wt. of at least 1000 and which is a poly(alklyene-ether) glycol or a linear dihydroxy-terminated polyester in which the terminal active hydrogen atoms have been replaced by a radical containing an aziridine ring, e.g. of formula The aziridine-terminated polymer may be made by reacting the above polyglycols or polyesters with an organic diisocyanate and then with an alkylenimine; and is belived to react with the hydroxyl groups of the acetal, e.g. polyvinyl butyral. The magnetic particles may be of acicular gamma iron oxide and the coating composition may contain a solvent, e.g. glycol monoacetate and methyl isobutyl ketone. The coating is cured by heating.
Patent GB-266316-A (GB)
Title: Safety devices for preventing theft of spare wheels and pneumatic tires mounted thereon
IPC: B62D43/00
Filed: 1927-01-28
Abstract: 266,316. Compagnie d'Applications MÚcaniques. Feb. 19, 1926, [Convention date]. Mounting and securing spare tyres and wheels on vehicles.-In order to prevent the theft of a spare wheel, or of the tyre mounted thereon, the tyre is surrounded by two jaws 4, 5, which are adapted to be moved simultaneously in opposite directions towards and away from the spare wheel 1, and are locked against the rim 7 or other rigid part, of the wheel, which is secured, for example, by bolts 3 to a plate 2. The jaws 4, 5 may be slidably mounted in a guide 6, and may be actuated by the opposite threads of a screw 9, which is rotatably mounted in a boss 10 and is actuated by a spanner engaging the end 11. The screw 9 is locked by a key-operated lock, the bolt of which enters notches 28. Specification 265,943 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which one of the jaws is rigidly secured to the body or running-board of the vehicle, and the other jaw is pivoted to a support on the running- board &c., the pivotal shaft being acted upon by a spring and provided with a shoulder or stop to be engaged by the bolt of a lock. This subjectmatter does not appear in the Specification as accepted.
Patent GB-112194-A (GB)
Title: Improvements in Measures or Rules adapted for use as Plumb and Angle Gauges.
Inventor: ASHTON GEORGE THOMAS
IPC: G01C5/00
Filed: 1917-02-22
Abstract: 112,194. Ashton, G. T. Feb. 22, 1917. Bevels.-A folding rule applicable also as a plumb-rule or level and bevel or mitre-gauge has one arm b hinged at a so that the other arm c with the short part of the arm b is of such a length that, when it is secured to the arm b by the stud e, the arm d and longer part of the arm b are at right-angles. A hole f is provided from which a plumb bob h is suspended, an indicating notch i being provided in the arm d. A second hole j is provided for the reception of the plumb line when the apparatus is used as a level for a soffit &c, The plumb-line is preferably made thicker in the middle than at the ends in order to grip the hole through which it is inserted. The arm c may have at its free end a jointed extension so that it may be used to connect the arms band d when set to more than a right angle, thus providing for a greater range of adjustment as an angle gauge.
Patent GB-120322-A (GB)
Title: Improvements in connection with Means Employed for Fastening Tarpaulins and like Covers to Waggons, Trucks, and other Vehicles.
Inventor: LEE ROBERT
IPC: B60P7/04
Filed: 1918-02-14
Abstract: 120,322. Lee, R. Feb. 14, 1918. Covers, wagon and like. - Tarpaulins or like covers b are secured to wagons, trucks, or similar vehicles by means of a running cord e secured at one end e<1> to the wagon d and laced through co-operating hooks, eyes, pulleys, or the like attached to the wagon and to the tarpaulin. The free end of the cord e is tightened by hand or by a winch and held by passing it round a suitable cleat. In the construction shown in Fig. 1, the cord passes round a number of pulleys c on the sides and end of the wagon, and over hooks a attached to eyelets a<1> in the tarpaulin and arranged in staggered relation to the pulleys c. In modifications, the cord engages ring bolts on the wagon and has hooks threaded on it intermediate of the ring bolts, which are adapted to engage eyelets formed in the tarpaulin or attached to the ends of securing ropes passed over the tarpaulin.
Patent GB-306261-A (GB)
Title: Improvements in parachutes, aeroplanes, balloons and like toys for release from kites, aircraft and the like
IPC: A63H33/20
Filed: 1928-01-27
Abstract: 306,261. Pantsos, (known as Pantcheff), S. X. Jan. 27, 1928. Flying toys; balloons. - Strings or other flexible elements such as cotton, thread, tape, hair, filaments, &c., are connected to parachutes, balloons, aeroplanes or other toys adapted to be released from kites or aircraft, by gumming the strings in bent formation to the surface of the parachute &c. As shown a string c is attached to the material of a parachute d by two discs a, b of gummed paper. The discs are first gummed together with the string passing between them, and are then attached to the parachute with the surplus end c<1> of the string disposed between the intermediate disc b and the parachute.
Patent GB-620892-A (GB)
Title: Improvements in and relating to optical glass
IPC: C03C3/14
Filed: 1947-01-29
Abstract: 620,892. Glass compositions. KODAK, Ltd. Jan. 29, 1947, No. 2809. Convention date, Jan. 29, 1946. Drawings to Specification. [Class 56] Glass is formed from a batch consisting substantially of TiO 2  3-12 per cent, PbO 66-96 per cent, and B 2 O 3  2-30 per cent. The glasses are hard and durable against moisture attack and have a high refractive index and di-electric constant and a low abbe value, and may be used as optical material, high di-electric substances or gem stones. Small amounts of other components may be added to increase the chemical durability and to minimize devitrification. A preferred batch contains PbO 78 per cent, TiO 2  12 per cent and B 2 O 3  10 per cent, and the resultant glass has a refractive index of 2.0685 and abbe value 17.7. Pb 3 O 4 , PbO or Pb(MO 3 ) 2  may be used as the lead ingredient, and H 3 BO 3  as the source of B 2 O 3 , and the mixture is heated in a 96 per cent silica crucible at 1300' C. for 5-7 minutes, or at 1000C. for 30 minutes; shaken and poured into moulds heated to 350C. The glass is slightly yellow and the colour increases with the lead content. A high TiO 2  content increases the resistance to moisture. A little SiO 2  may be absorbed from the crucible. Compositions are also given in mols per cent and illustrated in ternary diagram.
Patent GB-113648-A (GB)
Title: Improved Manufacture of a Phosphatic Manure.
Inventor: CROOK SIDNEY
IPC: C05B11/08
Filed: 1917-02-26
Abstract: 113,648. Crook, S., and Gilbertson, F. W. Feb. 26, 1917. Calcium superphosphate is produced by mixing mineral phosphate with nitre cake and water to a stiff paste and drying it. The mass does not set. The drying may be effected by heating not above 100‹ C. or, according to the Provisional Specification, at 150-200‹ C. or the mass may be air-dried.
Patent GB-389956-A (GB)
Title: Improvements in stockings or socks and in the method of and machines for knitting them
IPC: D04B1/26
Filed: 1932-01-30
Abstract: 389,956. Stockings and socks. MILNE, E., 20, Pennine Drive, Hendon Way, London. Jan. 30, 1932, No. 2851. [Class 141.] A stocking or sock having a turned knitted welt a is provided with an elastic band or other gartering component b completely housed in the welt without being secured to it.
Patent GB-606647-A (GB)
Title: Improvements in cutters for milling machines and the like
IPC: B23C5/24
Filed: 1944-02-16
Abstract: 606,647. Milling-cutters. WORRALL, W. H. Feb. 16, 1944, No. 2862. [Class 83 (iii)] [Also in Group XXIII] In a milling-cutter having a body 11 with equally inclined sockets 11a for cylindrical teeth 10, each tooth has spaced flats 15, 15a which are engaged by tangential tapered cotters 14, 14a tightened by nuts. The flats are located at opposite sides of each tooth adjacent the ends and the effect of tightening the cotters is to pre-load the teeth in the same direction as the loading of the cutting pressure. The teeth are adjusted individually by backing screws 13 so that all the cutting-edges lie in the same plane and on the same circle of revolution, and the teeth have tungsten carbide tips 12 brazed into dovetailed grooves. In order to eliminate vibration the cutter body may be made of low carbon cast iron or cast steel having 0-1 per cent of carbon, or the body may include an annular vibration damper flexibly attached thereto. Work-holders.-In order to ensure the grinding of all the teeth to the same shape, each tooth is mounted in a holder 16, Fig. 5, wherein it is held by an adjustable end screw 24 and two spring-pressed pads 23, 23a which engage the flats 15, 15a. The holder 16 is supported by a hollow spindle 17 on a fixed bracket 18 so that it may be swung about the axis of the spindle between the limits imposed by stops 19, thus shaping the end of the tooth on a rotary grinding wheel 20 to form a radiused end bounded by two flat-inclined sides. The radius is determined by setting the axis of the spindle 17 relatively to the wheel 20 by means of a gauge-pin 21 passing through the spindle.
Patent GB-466908-A (GB)
Title: Process for the production of artificial surfaces for skating rinks
IPC: C09K3/24
Filed: 1936-01-30
Abstract: An artificial skating-rink surface is prepared by making a mixture of hard wax with at least one of the following substances, naphthalene, fluoranthene, fluorene, pyrene, retene, phenanthrene and acenaphthene, melting and filtering the mixture, and pouring it out on a horizontal surface, e.g. a concrete surface coated with a layer of paper.  The hard wax may be carnauba wax, or a synthetic wax, e.g. a wax as disclosed in Specification 296,145, 302,626, 305,552, 308,996, [all in Class 91], or 410,087.  The surface may be lubricated with glycerine which may contain a small amount of soap solution.  The carnauba wax may be freed from a sticky oil contained therein by extraction with alcohol.
Patent GB-615305-A (GB)
Title: Improvements relating to the manufacture of textile fibres composed of casein or casein and cellulose
IPC: D06M15/423
Filed: 1942-03-05
Abstract: Textile filaments or fibres are obtained by extruding a solution, particularly an aqueous solution, of casein or of casein and viscose into a coagulation bath which does not contain formaldehyde and treating the coagulated filaments in a succession of baths including or comprising a bath or baths consisting of urea dissolved in a solution of a neutral or acid salt of a mineral or organic acid and a urea-free saline bath or baths containing formaldehyde, the urea treatment preceding the formaldehyde treatment.  The treated filaments are resistant to moisture and to hot soap solutions and dilute acids.  The tensile strength may be increased by stretching the filaments and maintaining them under tension during their passage through at least the bath or baths containing formaldehyde or after leaving the bath and until they are cut to staple fibres.  A large number of filaments may be gathered together and passed in ribbon form through the post-coagulation treatment baths.  To obtain a higher resistance to hot acid liquors, one or more of the baths containing formaldehyde may be heated, e.g. to 70-75 DEG  C.  The saline solutions of urea may be concentrated as regards the salt and may have an astringent effect on the filaments.  The salt may be sodium chloride, aluminium sulphate or other chloride, sulphate, formate, acetate, lactate, or nitrate.  Instead of urea, there may be used a water-soluble urea salt or thiourea.  In an example, casein is dissolved in caustic soda solution and the matured solution is spun into a coagulating bath containing sulphuric acid and sodium sulphate.  The bundle of filaments obtained is passed in succession through an aqueous saline bath containing 200 grams per litre of sodium chloride, an aqueous saline bath containing 150 grams of sodium chloride, 200 grams of aluminium sulphate and 50 grams of alumina paste containing 10 per cent Al2O3, per litre, a similar bath containing in addition 100 grams of urea per litre and saturated as regards sodium chloride, and a similar bath containing 30-40 grams of formaldehyde per litre, but free from urea.  The filaments are then cut to staple fibres and these are treated with a solution containing aluminium sulphate, sodium chloride and formaldehyde. The insolubilized fibres are washed and treated with an aqueous solution of sodium phosphate.  Specifications 483,731, 483,807, 483,808, 483,809, 483,810, 510,131, 510,616, 510,656 and 511,160 are referred to.
Patent GB-1185184-A (GB)
Title: Process for the Regeneration of a Cation Exchange Resin
IPC: C07D263/00
Filed: 1967-05-25
Abstract: 1,185,184. Regeneration of cation exchange material. UGINE KUHLMANN. 25 May, 1967 [27 May, 1966], No. 3005/69. Divided out of 1185183. Heading B1J. [Also in Division C2] A spent cation exchange resin containing adsorbed basic heterocyclic compounds containing one or more nitrogen atoms in the heterocyclic ring is regenerated to its acid form by washing the resin with deionized water. The deionized water may be employed at an elevated temperature, e.g. the boiling point, when the washing with water may be combined with treatment of the resin with steam followed by condensation of the resulting vapours and recovery of the heterocyclic compound from the condensate. The cation exchange resin may be one that is based on polystyrene cross-linked with divinyl benzene and sulphonated. The examples describe the desorption of oxazole.
Patent GB-1464526-A (GB)
IPC: G01F11/00
Filed: 1975-01-23
Abstract: 1464526 Fluid dispensers BRAS SpA 23 Jan 1975 [4 Feb 1974] 3019/75 Heading A4T A fluid dispenser which provides a substantially constant rate of flow independent of the intrinsic physical properties of the fluid comprises a screw feed 5 to direct flow through an outlet port 12 to a valve whose valve closure member 16 is spring- biased closed. The degree of opening of the valve depends on the upstream pressure which in turn depends on the viscosity of the fluid for a given screw speed. When the fluid is thick the valve opens more than when the fluid is thin. The screw is driven by a timer controlled motor 6 via magnets 7, 8. The valve may have a side port 22 to a mixing chamber 21. The fluid may be syrup mixed with carbonated water or alternatively the dispenser may be used for filling bottles with chemicals.