baber/WOPTO huggingface dataset:
Patent GB-768470-A (GB)
Title: Cyanuric acid esters of epoxy alcohols and polymers thereof
IPC: C08G59/32
Filed: 1955-02-21
Abstract: Synthetic resins are prepared by polymerizing tri-esters of cyanuric acid with epoxy-alcohols, in the presence of an epoxy curing agent. Similarly, coating compositions are obtained by polymerizing the esters obtained by reacting the above cyanuric esters with carboxylic acids, especially drying oil fatty acids. The epoxyalcohols are preferably those with 3-6 carbon atoms, e.g. glycidol; many of these and other types are mentioned.  The three alcohol residues attached to the cyanuric ring may be the same or different.  The epoxy curing agent may be acidic or basic, e.g. phosphoric acid, monobutyl phosphate, phthalic anhydride, boron trifluoride, stannic chloride, dicyandiamide, ethylene diamine, piperidine or 2:4:6-tri(dimethylaminomethyl) - phenol. Polymerization is effected by heating to 50-200 DEG  C.  The cyanuric esters can be copolymerized with glycidyl ethers of polyhydric alcohols or phenols (especially of 2:2-bis-p-hydroxyphenylpropane) such as those described in Specification 691,543, and/or phenol-aldehyde, urea-aldehyde, melamine-aldehyde, alkyd and polyamide resins. Examples show the polymerization of triglycidyl cyanurate using 2:4:6-tri-(dimethylaminomethyl)-phenol and dicyandiamide.ALSO:The invention comprises tri-esters of cyanuric acid with epoxy-alcohols, preferably those having 3-6 carbon atoms in the molecule, such as glycidol.  The products are obtained by treating cyanuric chloride or bromide with 3 mols. of the same or different epoxy-alcohols in the presence of a hydrohalide acceptor; they may be further treated with carboxylic acids (especially drying oil fatty acids) to give esters. The hydrohalide acceptor may be an inorganic base (e.g. alkali hydroxide) or a tertiary amine, and the process is preferably carried out below 40 DEG  C. in an inert solvent.  The epoxy-alcohols may have one or more hydroxy and/or epoxy groups and may be derived from alkanols, alkenols or cycloalkanols which may have halogen, aryl or heterocyclic substituents.  Many such epoxy-alcohols are listed and it is stated that they are obtainable by dehydrohalogenating the corresponding halohydrins or reacting the corresponding olefines with peracetic acid.  Examples show the preparation of triglycidyl cyanurate and the esterification of the product with soybean fatty acids.
Patent GB-473883-A (GB)
Title: Means for preventing the formation of ice on exposed surfaces
IPC: B64D15/16
Filed: 1936-02-20
Abstract: 473,883. Preventing formation of ice on aircraft surfaces. HARSHAW CHEMICAL CO. Feb. 20, 1936, No. 5131. Convention date, Feb. 20, 1935. [Class 4] In order to prevent formation of ice on an aircraft surface, an ice destroying liquid such as glycerine, a glycol, an alcohol, or a non- corrosive saline solution is exuded in a capillary flow on to a leading part of the surface so as to be spread over the surface by the relative wind. Conduits 2, Fig. 1, are arranged along the forward portion of the wing and are supplied either by a common reservoir 3, or by individual reservoirs, under pressure for instance pneumatic pressure. In one form the conduit comprises a tube 8, Fig. 2, having a fine slot opening 9 communicating directly with the wing surface. A fibrous wick may completely fill tube 8 or be arranged in an annulus between tube 8 and an internal tube 11, apertured at points disposed opposite slot 9. In a modification, Fig. 3, a conduit 8a has a series of small spaced outlets 13.
Patent GB-193851-A (GB)
Title: A process of desulphurizing iron, steel, ferro-alloys and copper and a composition of matter for use in said process
IPC: C21C1/02
Filed: 1923-02-22
Abstract: 193,851. Chemical Treatment Co., (Assignees of Jackson. D. D., Sears, J. D., and Conlin, F.). Feb. 22, 1922, [Convention date]. Drawings to Specification. Alloys; dry processes of refining metals and alloys.-In a process fcr desulphurizing iron, steel, iron alloys and copper, the molten metal is treated with a mixture of an alkali silicate and either an alkaline hydroxide or carbonate or both, the sodium compounds preferably being used, the silicate forming approximately 5-15 per cent of the mixture. The mixture is spread out as a liquid layer on the molten metal in a ladle, crucible, converter &c., the slag having been removed, or is fused to form a cake which may be provided with an air-excluding surface covering such as a box or a coating of paraffin wax. Specifications 12401/88 and 1437/93, [both in Class 72, Iron &c.], are referred to.
Patent GB-971269-A (GB)
Title: An improved sleeping bag
IPC: A47G9/02
Filed: 1962-02-09
Abstract: 971,269. Sleeping bags. D. A. CARREZ. Feb. 9, 1962 [Feb. 21, 1961], No, 5149/62. Heading A4G. A sleeping bag, including an envelope 2, 3 of bed sheet material open at one end, incorporates an insulating cover 7 detachably secured to the envelope by slide fasteners 9, 9<SP>1</SP> along the sides of the sleeping bag. An auxiliary blanket may be provided in the space 15 between the upper sheet 2 and the cover 7. A padded strip 12 may be secured to the lower sheet 3,
Patent GB-198332-A (GB)
Title: Improvements in the manufacture of sulphuric acid
IPC: C01B17/82
Filed: 1923-02-23
Abstract: 198,332. Lamoreaux, W. F. May 29, 1922, [Convention date]. Sulphuric acid.- In the manufacture of sulphuric acid in which sulphur dioxide is oxidized in the presence of nitrous compounds, the reacting liquids are intensively dispersed within the gas stream and the quantity of water present is so regulated that some of the sulphur trioxide produced is not absorbed in the reaction chamber'but is subsequently dissolved in strong sulphuric acid to give oleum. The arrangement of plant shown in Fig. 2 includes a Glover tower 1, and three gas washers of the Feld type. Gases containing sulphur dioxide and nitrogen oxides enter the Glover by a pipe A and then pass on to the washer 4 in which they come in contact with finely dispersed nitrous vitriol. The fog of sulphur trioxide produced is not condensed but passes into the second washer 10 containing acid of 59-61‹ BÚ. which absorbs the nitrous compounds liberated in the washer 4. The sulphur trioxide is finally condensed in a third washer 14 in which 97-99 per cent acid is circulated. This concentration is maintained bv the addition of weak acid from the- Glover. A portion cf the condensed acid is used to supply the washer 10 in order to maintain the concentration at 59-61‹ BÚ. Acid in excess of that which is required is stored in a tank S. The quantity of nitrous vitriol withdrawn from the absorber 10 to supply the washer 4 is regulated according to the flow of sulphur dioxide so that the acid leaving the bottom of the washer is almost entirely denitrated. The acid leaving the washer 4 is cooled before it is circulated. Complete denitration is effected in the Glover tower 1, an acid of 60‹ BÚ. being obtained. In a modified process, when a completely denitrated prcduct is not essential, the Glover tower is dispensed with. Instead of vertical washers of the Feld type horizontal Theisen washers may be employed. When intensive production is desired additional nitrogen compounds are introduced into the washer 4 and the process may be conducted under pressure. Specification 216,192 is referred to.
Patent GB-626638-A (GB)
Title: Improvements in and relating to radio transmitting antenna
IPC: H01Q1/10
Filed: 1946-02-20
Abstract: 626,638. Aerial masts. AUSENDA, C. Feb. 20, 1946, No. 5311. Convention date, May 15, 1941. [Class 20(i)] [Also in Group XL(c)]  A vertical tubular telescopic antenna is provided with scaling glands between the sections and is adjusted in length by fluid under pressure. A vertical adjustable antenna comprises telescopic metal tubes 1, 2, 3 which slide into each other through oil tight glands 4. Inside the antenna there is a similar set of tubes 5, 6, 7 also provided with glands and connected at the top and bottom with the outer set so that there is formed between the tubes an annular sealed space into and out of which oil may be pumped through an insulating pipe to adjust the height. The lowest section 1 of the antenna is rigidly mounted in the top of a lattice mast 30 by means of insulators 9 and 10. A weight 15 hung from a cable passing down the inner set of tubes 5, 6, 7, and broken up by insulators, assists to collapse the antenna and a height indicator may be connected to the weight 15.
Patent GB-703235-A (GB)
Title: Improvements in or relating to the gluing of wood and similar materials without using high temperatures
IPC: C08G8/24
Filed: 1949-02-28
Abstract: Wood or similar material is glued together by aqueous solutions of the alkaline condensation products of phenols, phenol sulphonic acids and formaldehyde; the gluing being performed in the presence of acids.  Specified phenols are phenol, cresols, xylenols and other phenol homologues.  Specified acids are sulphuric, hydrochloric, formic, sulphonic acids of aromatic hydrocarbons, the acid obtained by acidifying the condensation product of phenol sulphonic acid and formaldehyde in the presence of alkali, and the product obtained by sulphonating novolaks.  In examples, (1) The sodium salt of phenol-para-sulphonic acid and formaldehyde are heated in presence of caustic soda, phenol is added and the mixture agitated.  Sulphuric acid is added to the resultant solution which is used to glue wood. (2) The solution of example (1) is spray dried, dissolved in water and mixed with p-toluene-sulphonic acid.  (3) The sodium salt of a sulphonation product of technical cresol, phenol and formaldehyde are condensed in presence of caustic soda.  The product is spray dried and its aqueous solution is mixed with p-toluene-sulphonic acid. Specifications 703,233 and 703,234 are referred to.
Patent GB-919076-A (GB)
Title: Improvements in or relating to taping machines
Inventor: LAWTON JOHN EDWARD
IPC: H01B13/08
Filed: 1959-02-16
Abstract: 919,076. Feeding webs. BRITISH INSULATED CALLENDER'S. CABLES Ltd: Feb. 16, 1960 [Feb. 16, 1959], No. 5339/59. Class 100 (1). [Also in Group XXV] Tape for lapping a core is led over a strip which is flexible, but less flexible than the tape, and has at intervals along its length means for constraining the tape along a desired path. Tape from a pack 2 is led over a copper strip 3 on which are mounted pairs of rollers 7. between which the. tape passes;. The tape may instead pass beneath a series of single rollers, or alternately over and under the rollers of such a series. Vertical rolls 9 guide the edges of the tape.
Patent GB-608891-A (GB)
Title: Improvements in radio systems, suitable for lifeboat service
IPC: H04B1/54
Filed: 1946-02-20
Abstract: 608,891. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 20, 1946, No. 5347. Convention date, Jan. 8, 1945. Drawings to Specification. [Class 38 (ii)] [Also in Group XL (c)] The rotor of a variometer in the aerial circuit of a radio apparatus is arranged to rotate 2¢ times; after each revolution a Geneva movement automatically changes the tap on the stator. An inductance range of 10: 1 is thereby obtained.
Patent GB-974132-A (GB)
Title: One-way roller clutch
IPC: F16D41/067
Filed: 1962-02-12
Abstract: 974,132. Ratchet clutches. BORG-WARNER CORPORATION. Feb. 12, 1962 [Feb. 13, 1961], No. 5355/62. Heading F2C. A one-way roller clutch comprises rollers 24 carried in apertures in a cage 26 between U-shaped endplates 30, 32, which act as bearings between inner and outer races 12, 14, and a splitring 28 connected between the plate 30 and cage 26 urges the rollers 24 into engagement with the inner race 12 and cam surfaces 18 on the outer race. The rollers 24 are retained in the cage 26 by projections on the latter engaging dished recesses in the ends of the rollers. Radial projections on the plate 30 engage the cam recesses 18 to prevent relative rotation between the plate 30 and outer race 14. In Fig. 9 (not shown), the cam surfaces are formed on the inner race. In Fig. 10 (not shown), a split spring ring is provided between the cage 26 and each end plate.
Patent GB-493191-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F02F3/00
Filed: 1938-02-21
Abstract: 493,191. Pistons. MAHLE, H. Feb. 21, 1938, No. 5456. Convention date, Aug. 20, 1937. [Class 122 (i)] In pistons for internal-combustion engines wherein the skirt is separated from the head by a groove below the gudgeon bosses, the skirt is provided with thickened portions forming auxiliary ribs starting from above the gudgeon pin and extending down into the skirt. The piston 1 has a skirt portion 5 separated by a groove 6 below the gudgeon pin bosses. There are auxiliary rib surfaces 3, of a width corresponding to the boss diameter, and there may be in larger pistons additional ribs spaced round the circumference and extending upwardly to within the piston-ring zone. The piston so made may be produced by a pressing operation.
Patent GB-231443-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H01H63/06
Filed: 1925-02-27
Abstract: 231,443. Siemens & Halske Akt.-Ges. March 31, 1924, [Convention date]. Selectors.-The terminal multiples for adjacent switches are provided by sheet metal strips a with lateral portions d which are bent over and project through slots in a supporting plate b. Unless the three terminals of a set are staggered, one or more layers of insulating material e are interposed between the corresponding strips a.
Patent GB-1483394-A (GB)
Title: Electronic tachometers
IPC: G01P3/36
Filed: 1975-02-10
Abstract: 1483394 Tachometer INTERNATIONAL BUSINESS MACHINES CORP 10 Feb 1975 [10 April 1974] 5508/75 Heading G1A In an electric tachometer a continuous velocity output signal (VEL), Fig. 6, is generated from the combination of selected portions of two quadrature signals A, B, Figs. 1 and 3, that have the same frequency but are 90 degrees out of phase. Processing means, Fig. 4, are employed for generating a plurality of velocity signals dA, dA, dB, dB, from the quadrature signals together with means 54, 55, 56, 57 for generating signals C 1 , C 2 , C 3 , C 4  indicative of the relative magnitude of selected ones of the generated velocity signals and means for generating basic timing signals Q 1 , Q 2 , Q 3 , Q 4  from the quadrature signals. A selection and combination circuit, Fig. 6, selects from the plurality of generated velocity signals those signal portions (shaded portions of waveforms i, j, k, l, Fig. 8, not shown) of the generated velocity signals which are the most accurate indication of the velocity at any given instant in time. This is done by using the signals C 1 , C 2 , C 3 , C 4 , indicative of the relative size of the selected ones of said velocity signals and the basic timing signals Q 1 , Q 2 , Q 3 , Q 4  from the timing means. These signal portions are thus combined to provide a continuous signal indicating the velocity. The tachometer, Fig. 1, comprises an automatic gain control AGC generating means 5, 6, 7 and 8 for generating a control signal controlling the intensity of lamps or L.E.D.'s 2. The lamps or L.E.D.'s emit light which passes via two optical gratings 11, 12 to be received by two light detectors 3 and 4. Optical grating 11 is fixed and the grating 12 is moved by the object whose velocity is to be measured. The operation of the whole system is explained in detail with associated waveforms Fig. 8, (not shown). The description refers to employing a magnetic arrangement to replace the source-light detector system.
Patent GB-649920-A (GB)
Title: Improvements in and relating to spray carburettors for internal combustion engines
IPC: F02M19/03
Filed: 1948-02-24
Abstract: 649,920. Spray carburetters. CARTER CARBURETOR CORPORATION. Feb. 24, 1948, No. 5518. Convention date, Dec. 30, 1938. [Class 7(iii)] A fuel nozzle 13 for a downdraught carburetter is provided with a fuel spraying orifice 23 facing downstream of the air flow through the venturi 3, and a small air inlet orifice 24 facing against the air flow, whereby an enriched mixture is produced at low suction. The orifice 23 may face directly downstream or at an angle thereto. The carburetter includes a choke valve 2, and a slow running nozzle 16 fed through passages 14, 15, and the fuel flow through a metering orifice 12 to the main nozzle 13 is controlled by a needle valve 19 connected to the throttle valve 6 by a link 21.
Patent GB-362252-A (GB)
Title: Improvements in modulators for carrier-wave signalling
IPC: H03C1/54
Filed: 1931-02-21
Abstract: 362,252. Valve modulating circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Feb. 21, 1931, No. 5543. Convention date, Feb. 24, 1930. [Class 40 (v).] A modulating system for producing side-bands free from either of the input frequencies or harmonics thereof, comprises two push-pull modulators both giving an output which is a quadratic function of the input, and means for supplying the input frequencies in the same phase to one modulator and in opposite phase to the other, the output being taken differentially from the two modulators ; and a compensating arrangement is employed for preventing reaction of the anode voltages on the grids. Fig. 1 shows a circuit employing a pair of valve modulators M, M<1> each constituted by a pair of valves. The two input sources Sb, St are connected as shown to the transformers T, T<1> in such a way that if transformer T receives the sum of the two waves, transformer T<1> receives the difference. The amplitude of each may be varied by resistances P, P<1>. The transformer secondaries are centre-tapped, so that the grid g<1> is excited in phase opposition to grid g<2>, and g1<SP>1> in opposition to g2<SP>1>. The plates of modulator M are directly joined and connected to one end of the output transformer T<2>, the opposite end of which is joined to the multipled plates of the modulator M<1>. The secondary coil of the transformer T<2> is connected to the load R. Another secondary coil H is connected in the grid circuits of the modulator valves for preventing the plate circuit load from reacting on the input voltages. The Specification as open to inspection under Sect. 91 (3) (a) also includes a modification employing moving-coil modulators (Fig. 5, Cancelled). The input frequencies are supplied as before from sources Sb, St, and their sum and difference are applied to the modulators M, M<1>. Each of these comprises a coil N energizing a magnetic core K in series with a coil n mounted to swing in a gap in the core. The two swinging coils n, n<1> are mounted on the same spindle D which also carries a coil n<2> moving in the field of a permanent magnet K2, and connected to the load R. A filter F may be designed to suppress one side band. Phase displacement due to inductive loads may be compensated by a condenser C<1> and resistance R<1> interposed between the halves of the primary winding of the transformer T<1>; and a condenser C<2> is placed in series with the source Sb. In a further modification, Fig. 6 (Cancelled), the superposed currents from the sources Sb, St are passed through the coils of magnets M, M<1>, the armatures A, A<1> of which act oppositely on a moving coil n<2> connected to the load R. The coil n<2> is pivoted in the field of a permanent magnet K<2>. This subject-matter does not appear in the Specification as accepted.
Patent GB-1175251-A (GB)
Title: Improvements on or relating to Thermodynamic Engines.
IPC: F02G1/055
Filed: 1967-02-06
Abstract: 1,175,251. Utilizing energy of radiators. PHILIPS GLOEILAMPENFABRIEKEN N.V. 6 Feb., 1967 [9 Feb., 1966], No. 5594/67. Heading G6P. A hot-gas engine is supplied with heat from radio-active material. The gas temperature is automatically maintained constant, irrespective of engine load, by the adjustment of either the position of the active material or the flow of heat transfer media between the engine and the active material. Heat is transferred from the active material to the engine gas by either radiation or conduction through a fluid medium. The gas engine, 1, 2, 3 is supplied with working fluid from the heater 10 which receives heat from the radio-active masses 14, 21. The position of 14, 21 is controlled by the motor 19, in correspondence with the signals of temperature sensitive element 27 in the working fluid. An equilibrium condition is established between the developed heat and the heat absorbed by the engine.
Patent GB-769697-A (GB)
Title: Improvements in the manufacture of transparent conducting films on transparent insulating backings
Inventor: ENNOS ANTHONY EDWARD
IPC: C03C17/36
Filed: 1954-02-25
Abstract: An electrically conductive transparent film is produced on a transparent insulating backing, such as a glass windscreen, by deposition in sequence on the backing, by direct evaporation in a vacuum, of a layer of one or more metallic oxides, a layer if gold, and a further layer of one or more metallic oxides, while preventing the ingress of air between the deposition of consecutive layers.  The oxides may be of bismuth, indium, antimony and lead.  Preferably, the backing is maintained at 150 DEG C. during deposition of the oxide, and the resultant composite film is heated to 200 DEG C. for five minutes in air.  The receptacle for evaporation of the gold may be a molybdenum foil boat or a tungsten wire in the shape of a hairpin, and that for the oxide may be constructed of platinum or have at least its interior lined with platinum.
Patent GB-374398-A (GB)
Title: Improved means for making records on gramophones
IPC: G11B3/36
Filed: 1931-07-01
Abstract: 374,398. Recording sound. FAY, H. P., 55, Holland Park, London. July 1, 1931, No. 5650/32. Divided on 371,935. [Class 40 (ii).] To enable a disc record to be made on an ordinary gramophone, a recording sound-box d is traversed radially across a metal or other blank x on a turntable a by means of a rack bar o pivotally connected to the sound-box and driven by a spiral scroll formed on a boss i which is located at the central portion of the turntable and constitutes a cage for ball bearings in rolling contact with opposed relatively rotated surfaces. These surfaces are respectively the upper surface of a base g rotated by the turntable spindle and the undersurface of a slotted guide member j for the rack bar o. The spiral scroll is stated to be rotated at half the speed of the turntable. Other details of the apparatus are set forth in Specification 371,935.
Patent GB-535726-A (GB)
Title: Improvements in or relating to apparatus for outwardly beading inset seals or like closures
IPC: B67C7/00
Filed: 1940-03-29
Abstract: 535,726. Tube expanders. CARTNER, J., and MOORE, H. G. March 29, 1940, No. 5706. [Class 83 (iv)] An apparatus for outwardly beading hollow inset seals 17 in containers, comprises a suspended rod 9 provided with a cone 10 on which rests a springy wire ring 12, and a sleeve 4 having an abutment 4a for the ring and a cylindrical centering wall for the seal and being loosely connected at 6 by an extension 5 to an operating lever 7 so that the seal is first aligned, then beaded to the ring and then on retraction of the sleeve the suspending plate 11 for the cone is engaged thereby so as to withdraw the parts from the beaded seal. The closure 17 may thus be expanded into the inwardly flanged threaded end 14 of a container or into a threaded plug, therefor or into a groove in the wall of a glass bottle. The wall of the closure may be provided with compressable packing material. Plate 11 rests on the fixed arm 3 for limiting its downward motion prior to the expanding operation. The container is placed for operation on a resiliently supported platform 13. The ring is split and may have a scarf or rabbeted joint. The flange 4b on the sleeve 4 may be replaced by an adjustable screwed flange.