baber/WOPTO huggingface dataset:
Patent GB-532523-A (GB)
Title: Improvements in systems for the electric transmission of signals over wires
IPC: H04B17/40
Filed: 1939-07-21
Abstract: 532,523. Repeaters. STANDARD TELEPHONES & CABLES, Ltd., JACOBSEN, B. B., ROCHE, A. H., and TERRY, V. J. July 21, 1939, No. 21250. [Class 40 (iv)] In an unattended, e.g. a submarine, repeater comprising main and stand-by amplifiers, the connecting up of the latter or a fault signal to an attended repeater or both are controlled by a switching device responsive to the temperature of the casing of the main repeater. As shown a bi-metallic strip S rests against the compartment B containing the main amplifier until the latter develops a fault and therefore cools whereupon the end of the strip snaps past a spring-loaded roller J or equivalent device and substitutes the stand-by amplifier. The latter remains connected up independently of the strip which continues to move to and fro with a periodicity characteristic of the repeater to give a signal at the attended repeater station, e.g. by varying an impedance in the power supply. Alternatively the signal may be given by a thermopile influenced by the temperature of the amplifier casings so as to produce a voltage in one direction or the other. In a further modification one bi-metallic strip influenced only by the temperature of compartment B switches over and another operates cyclically to give the signal. In a further modification a known type of thermal switch responds to the difference in temperature between the working and idle parts of the repeater.
Patent GB-504432-A (GB)
Title: Improvements in high-pressure mercury-vapour electric discharge lamps
IPC: H01J61/82
Filed: 1938-07-18
Abstract: 504,432. Supply system for discharge lamps. GENERAL ELECTRIC CO., Ltd. July 18, 1938, No. 21259. Convention date, July 28, 1937. [Class 39 (i)] [Also in Group XXXV] A high - pressure mercuryvapour discharge lamp is. run at a watt loss per centimetre which exceeds 30 whereby it has a positive characteristic and may be run directly from the supply or in series with a resistance which does not take more than 10 per cent of the supply voltage. Such a lamp 2 is con. nected in series with an impedance 8 during starting and running up, this impedance being wholly or partly shortcircuited by a bimetal switch 10. A separate small series impedance may or may not be provided. Alternatively, the series impedance may be constituted by a negative temperature coefficient resistor so that after running up its resistance has the requisite very low or zero value. If a finite small series impedance is used it may be constituted by the usual iron wire in hydrogen. The speed of run up may be increased. by utilizing the heating effect of the starting impedance. The run up period may be avoided by including a filling of a gas at a pressure such that a high-pressure discharge is started in which case auxiliary starting means are used such as h.f. voltage or contacting electrodes. A.C. or D.C. supply may be used. Some or all of the elements may be enclosed in the outer envelope 1 surrounding the discharge lamp 2.
Patent GB-220171-A (GB)
Title: Improvements in or relating to bracelets
IPC: A44C5/20
Filed: 1923-08-22
Abstract: 220,171. Holland, M. A., and Bosworth, F. B. Aug. 22, 1923. Stud-and-socket fastenings.-A bracelet adapted for carrying a handkerchief on the wrist comprises a length of flexible material A which may also be elastic, to one end of which is secured a ring B capable of taking the handkerchief. The other end carries one member D of a two-part fastener which, after passing through the ring B, is engaged by the other member C of the fastener which is adjustable on the bracelet. A construction of a spring stud-and-slot fastening is shown in the Figure. The wristlet may be adapted to carry a watch also. Specification 4965/15 is referred to.
Patent GB-188090-A (GB)
Title: Improvements in belt fasteners
IPC: F16G3/02
Filed: 1922-05-11
Abstract: 188,090. Durrant, F. May 11, 1922. Belt fastenings. - In jointed belt fastenings, each half is formed from a plate doubled upon itself, the lower or inner fold being cut substantially to E-shape, spikes b<3> only being punched out of the outer fold, as shown in Fig. 10, or additional spikes b<4>, Figs. 1 and 6, being formed on and bent up from the inner fold. The spikes may lie parallel or at right angles to the hinge, and a raw hide pin a may form the connection. The edges b<2> of the fastener remote from the hinge may be bent over to assist the grip on the belt. Opening of the fastener beyond the straight may be prevented by forming interengaging notches b<5> on the outer plates.
Patent GB-938102-A (GB)
Title: Improvements relating to conveyor belting
Inventor: HENSON DOUGLAS RONALD
IPC: B65G15/36
Filed: 1959-06-23
Abstract: 938,102. Laminates. DUNLOP RUBBER CO. Ltd. May 19, 1960 [June 23, 1959], No. 21418/59. Class 140. A conveyer belt comprises at least two stiffening plies of cords extending across the belt and lying at a greater angle to the longitudinal axis of the belt at its side regions than its central region. As shown, a belt has a carcass comprising plies 1 of cotton duck, between stiffening plies 2, 3, of nylon cord 4, which extend from side to side of the carcass. The cords lie at 90 degrees to the longitudinal axis in side regions A, and at 80 degrees to the longitudinal axis in the central region B. The cords may be single or multiple steel wire, or textile material, e.g. nylon monofilament, with or without a weak, or widely-spaced weft, and may be helically-wound around a reinforcement ply. The plies are coated and impregnated with P.V.C.-based plastics, and are assembled with covering layers and edge-strips of the same material. The assembly is consolidated by hot-pressing.
Patent GB-740753-A (GB)
Title: Improvements in or relating to television receivers
Inventor: MARTIN KENNETH EDWARD
IPC: H04N3/223
Filed: 1952-08-26
Abstract: 740,753. Saw-tooth generating circuits. MULLARD RADIO VALVE CO., Ltd. Aug. 17, 1953 [Aug. 26, 1952], No. 21489/52. Class 40 (6). In a television line time-base and E.H.T. generator of the type in which the deflection coils are connected directly in the anode circuit of the line output valve without the use of a transformer and which uses an efficiency diode, the drive for the output valve is obtained from a valve oscillator having an adjustable anode load whereby the shape and amplitude of the voltage applied to' the output valve may be varied without varying the E.H.T. voltage. The Figure shows a convention line time-base circuit driven from a multivibrator having a variable anode load 19. A blocking oscillator may replace the multivibrator.
Patent GB-293219-A (GB)
Title: An improved process for the extraction of cellulose from vegetable products
IPC: D21C3/00
Filed: 1927-08-15
Abstract: 293,219. Leao, F. G. P. Aug. 15, 1927. Manures.-The waste liquor obtained in the manufacture of cellulose by treatment of vegetable materials with the sap of the banana plant may be used as a fertilizer.
Patent GB-500473-A (GB)
Title: Improvements in or relating to the bleaching of textiles
IPC: D06L4/70
Filed: 1937-08-04
Abstract: 500,473. Bleaching textiles. BUTTERWORTH, E., FRAZER & HAUGHTON, Ltd., and IMPERIAL CHEMICAL INDUSTRIES. Ltd. Aug. 4, 1937, No. 21521. [Class 15 (ii)] In bleaching cellulosic materials, especially bast fibres such as linen, jute or hemp, with a hypochlorite solution containing no neutralizing buffering agent, at a temperature below 20‹ C. and with substantial exclusion of actinic rays, the time of treatment while the solution is substantially neutral, i.e. within the pH range of approximately 5À8 to 8À2, is determined in accordance with the concentration of available chlorine at the time when the pH. value of the solution enters this range at the upperlimit. For this purpose the pH value is tested from time to time and when it is found to have entered the neutral range the concentration of available chlorine is determined. Subsequently, the goods are treated with an alkaline peroxide solution, e.g. as described in Specification 499,873. In an example, linen yarn is scoured for 3 hours in a soda ash solution at 65-70‹ C., washed and entered on a reeling machine into a bleaching powder solution at 15À5‹ C. in subdued light, the solution containing 4À0 grams of available chlorine per litre and the pH value being 9À3 ; in accordance with the available chlorine content, vix: 2À7 grams per litre, determined after 25 minutes, when the pH, value is falling below 8, the period of reeling is fixed at a further 30 minutes ; the yarn is then rinsed, treated for 3 hours in a solution at 70‹ C. containing sodium peroxide, sodium bicarbonate and sodium silicate, washed and dried to obtain a half-white bleach. Specifications 489,496 and 500,121 also are referred to.
Patent GB-379484-A (GB)
Title: Improvements in or relating to apparatus for producing designs on lithographic plates photographically
IPC: G03B27/20
Filed: 1931-07-28
Abstract: 379,484. Photographic printing apparatus. MARINONI (MACHINES ET MATERIEL POUR L'IMPRIMERIE ET LES INDUSTRIES ANNEXES), 96, Rue d'Assas, Paris. July 28, 1931, No. 21570. Convention date, Aug. 19, 1930. [Class 98 (ii).] In an apparatus, such as described in Specification 369,109, for producing designs on a lithographic plate 6 photographically, the plate is held on its supporting bed 1 by suction. This is effected by providing the surface of the support with ridges or undulations at rightangles to each other forming cells 3 which communicate by passages 5 to a suction chamber 4. The edges of the plate are sealed by adhesive strips 7.
Patent GB-942558-A (GB)
Title: Improvements in magnetic-cord inductors with variable magnetization and resonant circuits including such conductors
Inventor: LECOMTE JACQUES
IPC: H05H7/04
Filed: 1960-06-20
Abstract: 942,558. Inductors; resonant cavities; particle accelerators. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 20, 1960 [June 20, 1959], No. 21575/60. Headings H1D, HIT and H1W. A variable inductor suitable for altering the frequency of a resonant circuit tunable over a wide frequency band comprising a two-part magnetic core with a magnetizing winding, the two core parts providing two parallel magnetic paths and one having an incremental permeabilitywhich varies rapidly with change of magnetizing current as compared with the other core part at the lower end of the frequency band, the other core part having an incremental permeability varying relatively slowly with change in magnetization of the core and having a relatively high Q factor over the higher end of the frequency band as compared with the first core part. Curves 1 and 2 in Fig. 1, show the relationship between the permeabilities of the two selected materials for different values of the biasing current. More than two ferrite materials may be used. The Specification mentions a number of suitable ferrites. Figs. 4 and 6 show the inductor included in the resonant cavity of a proton synchrotron, the arrangement differing from that described in Specification 932,566, only in the arrangement of the magnetic core which comprises members 14a, 14b which are of the same shape but are made of different ferrite materials.
Patent GB-195910-A (GB)
Title: Improvements in or relating to road vehicle wheels having mud guards attached thereto
IPC: B60B7/00
Filed: 1922-08-08
Abstract: 195,910. Skenfield, H. S., and Webber, H. J. Aug. 8, 1922. Mvd-guards rotating with wheels.- A wheel having a tyre d formed on a metal base c mounted on the rim b, is provided with a mud-guard formed by a segmental ring e of rubber or the like attached directly to the band c. The rubber ring e is secured by a metal ring f and screws g. The rim j of the wheel projects to beyond the protecting ring f.
Patent GB-850935-A (GB)
Title: Improvements in or relating to disc brakes for aircraft and other vehicles
IPC: F16D55/40
Filed: 1957-07-08
Abstract: 850,935. Disc brakes. RECHERCHES ETUDES PRODUCTION R.E.P. July 8, 1957 [July 24, 1956], No. 21599/57. Class 103 (1). In a disc brake a plurality of friction members are adapted to engage the brake disc frictionally by means of hydraulic piston and cylinder mechanism, the axis of which are equally spaced angularly around the axis of the wheel to be braked and are so disposed as to bear on a plurality of concentric circumferential areas and to sweep substantially the whole extent of the surface of the disc in each revolution, the pressure which the friction members exert on the disc being determined so that the same quantity of heat is developed by friction in each of the annular zones swept by the various friction members. In the multi-plate disc brake shown adapted for mounting on an aircraft wheel assembly, discs 12 rotatable with wheel 2 are braked by the pressurisation of hydraulic piston and cylinder devices 18, 14 carried by arms 15, 16, 17 of fixed plate 5 to cause movement of non-rotatable pressure plates 9a, 9b, 9c, 9d, 9e carrying friction pads 27 and interengaging rotatable discs 12 to the right against rigid end plate 10. The cylinders 14 are carried on the ends of arms 15, 16, 17 of plate 5 at different distances from the axis X-X of the stub axle 1. The diameters of the hydraulic cylinders 14 vary inversely to their distance from the axis X-X of the stub axle such that the pairs of pads 27, each arranged to form an obtuse angle as shown in Fig. 2, each affect a different annular zone of the rotating disc 12 in such a manner that the heat generated by friction is substantially distributed over the whole face of the disc. Each piston 18 terminates in a concave part-spherical bearing 23 which, during braking, is applied against a part-sphericalheaded boss 24 of the same radius on plate 25, which bears by two circular bearing surfaces 26 on the disc 9a carrying the friction pads 27 (see Fig. 5).
Patent GB-933238-A (GB)
Title: Ichthyocidal composition
IPC: A01N43/24
Filed: 1960-06-20
Abstract: An ichthyocidal composition comprises 1 : 2 : 3 : 4 : 7 : 7 - hexachloro - bicyclo - [2 : 2 : 1] - heptene - (2) - bis - hydroxymethylene - (5 : 6) - sulphite, as active ingredient preferably in the proportion at least 25% by weight and an emulsifying agent.  An inert diluent, e.g. an organic solvent, may also be included.  In a specified example the composition consists of 50% by weight of 1 : 2 : 3 : 4 : 7 : 7 - hexachloro-bicyclo - [2 : 2 : 1] - heptene - (2) - bis - hydroxymethylene - (5 : 6) - sulphite, 10% by weight of oxethylated nonylphenol, 38% by weight of isopropyl alcohol or xylene and 2% by weight of epichlorhydrin, in the form of an emulsion.  Specification 810,602 is referred to.
Patent GB-1389650-A (GB)
Title: Electromagnetically operated hydraulic valve
IPC: F16K31/12
Filed: 1973-05-07
Abstract: 1389650 Hydraulic systems VAPOR CORP 7 May 1973 [3 Nov 1972] 21641/73 Heading F1P [Also in Division F2]  A motor for operating a cargo valve on a tanker is controlled by a main valve comprising four spring-loaded poppet valves 84a, b and 85a, b controlled by two electromagnetically operated pilot valves 16, 17. Pilot valve 16 opens simultaneously poppet valves 84a, 84b to connect motor port 116 to supply and motor port 115 to drain. Pilot valve 17 opens simultaneously poppet valves 85b, 85a to connect motor port 115 to supply and motor port 116 to drain. Relief valves 122, 123 are provided for the motor circuit. For details of the valves see Division F2.
Patent GB-500053-A (GB)
Title: Improved method and apparatus for local impregnation of fabrics
IPC: D06B3/10
Filed: 1937-08-07
Abstract: 500,053. Coating sheet material. BRAITHWAITE & SON (DRYSALTERS), Ltd., I., WILSON, H. C., and SMITH, A. L. Aug. 7, 1937, No. 21761. [Class 95] Liquid, e.g. hydrophobic such as a cellulose ester solution, is applied locally to a sheet of material by manual depression of a member associated with a striker immersed in the liquid. As shown, a comb-like striker 3a is attached to a curved lever 3 carried by a spindle and pivotally mounted in a box 2 housing a box 1 containing the liquid. The lever terminates in a stud 6 adapted to be depressed by an adjustable screw 11 carried by a hinged lid 9. A cover 7, having a depending wall 8 embracing the box 2, supports the lid 9. Apertures 13, 14 are provided the cover and lid through which the striker engages the fabric. Local application of the liquid is effected by pressing the sheet on the upper surface of the lid 9.
Patent GB-976964-A (GB)
Title: Improvements in or relating to borate compositions
Inventor: DULAT JOZEF SZCZEPAN
IPC: F01P11/06
Filed: 1960-06-21
Abstract: A corrosion inhibitor composition for aqueous liquids comprises a source of borate ions, e.g. sodium tetraborate, a water-soluble silicate, e.g. sodium metasilicate, mercaptobenzothiazole or a water-soluble salt thereof, and a source of alkaline earth metal ions, e.g. calcium oxide, or a water-soluble aluminate, or both. The composition may be added to a coolant comprising a polyhydric alcohol, e.g. ethylene glycol, or glycerine or a mixture thereof, which may be diluted with water, or it may simply be dissolved in water.  Specification 976,965 is referred to.ALSO:A corrosion inhibitor composition for aqueous liquids comprises a source of borate ions, e.g. sodium tetraborate, a water-soluble silicate, e.g. sodium metasilicate, mercaptobenzothiazole or a water-soluble salt thereof and a source of alkaline earth metal ions, e.g. calcium oxide or a water-soluble aluminate or both. The composition may be added to a coolant comprising a polyhydric alcohol, e.g. ethylene glycol or glycerine or a mixture thereof which may be diluted with water or it may simply be dissolved in water.  Specification 976,965 is referred to.
Patent GB-1085563-A (GB)
Title: Improvements in or relating to rotary electric switch constructions
Inventor: TURNER RONALD
IPC: H01H19/64
Filed: 1963-05-31
Abstract: 1,085,563. Switch contacts; mechanical switches. PLESSEY-UK Ltd. June 1, 1964. [May 31, 19631, No. 21806/63. Heading H2BIn a rotary switch, inter-digitating castellations on the stator or rotor elements locate and grip the stator or rotor contact members respectively. Contact members may be fixedly attached by lacquer or adhesive to one of the stator or rotor elements. A vent hole (21) is provided in the cylindrical wall of each stator or rotor element (Fig. 1, not shown). An insulating rotor 19 has conductive portions 20 co-operating with stator contact members 18 clamped between stator elements 12, 13. The rotor shaft 17 has an indexing plate (not shown) with holes engaged by pips on a plate (not shown) secured relative to the stator element 12. Alternatively the indexing mechanism of Specification 894,626 is used.
Patent GB-899374-A (GB)
Title: Improvements in or relating to wrapping materials
Inventor: MOSSE RICHARD WOLFGANG EMIL
IPC: B31B3/60
Filed: 1959-06-25
Abstract: <PICT:0899374/III/1> Wax is applied to paper or board wrapping material in sheet or web form by presenting the whole area of the material to a wax applicator following the application of a wax-repellent liquid to pre-determined areas of the material, whereby these areas remain uncoated by the wax.  The wax-repellent liquid may comprise water and a wetting agent, e.g. a liquid or powdered detergent. It may be applied to pre-determined areas of, e.g. a carton blank by wipers of a liquid absorbent material, connected to a source of the repellent liquid, or by intaglio rollers, or a letterpress, aniline or gravure printing process.  As shown, waxrepellent liquid is applied to the longitudinal edges of the blank, indicated at 27, by wipers 28, 29 of a material such as felt, to which the liquid is supplied from a tank, not shown, through pipes 32, 33 controlled by taps 34.  The edges of the blank are passed respectively over and under stationary guides 23 and 24.  The blank is forwarded by feed rollers, not shown, and then passes between a pair of rollers which apply molten wax to it.  The wipers 28, 29 may be supported for selective movement into and out of engagement with the blank, and additional applying means may be provided if portions other than the edges are to have wax-repellent liquid applied thereto.
Patent GB-1115722-A (GB)
Title: Shotgun cartridge
Inventor: HUSKINS JOSEPH WALTER
IPC: F42B7/12
Filed: 1965-05-24
Abstract: 1,115,722. Shotgun cartridges. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 4 May, 1966 [24 May, 1965], No. 21904/65. Heading F3A. In a shotgun cartridge the forward end of the cartridge casing is crimped over a frangible over-shot wad to form a closure and cover substantially the whole of the wad. If the over-shot wad 9 is formed of granular cork it is rendered impermeable by treatment with paraffin wax, anhydrous lanolin and silicones and is compressed by the crimps in the cartridge casing to assume the shape of the crimped end closure. The cork wad may be replaced by a plastics wad e.g. polystyrene. Both wads may be rendered more frangible by providing each of them with a grooved surface to weaken the construction. The cartridge-casing. 3 may be formed of high density polyethylene with the rearward end of the casing contained within a metallic head 2. A primer 4 is mounted in a central aperture in the head. A base wad 6, powder charge 5, a wadding column 7, and metallic shot 8 are contained within the cartridge casing.
Patent GB-170649-A (GB)
Title: Improvements in screw down valves, cocks, or taps
IPC: F16K43/00
Filed: 1920-07-22
Abstract: 170,649. Colpoys, A. B. Griffiths-, and Snell, J. S. July 22, 1020. Closure members. - A screw - down valve is provided with a supplementary valve which may be closed when the main valve is removed for repair. The valve body contains a chamber k closed by a screwed plug into which a supplementary valve m is fitted. The valve m has a square recess into which fits a square spindle n attached to the main valve g. When the main valve spindle f is unscrewed, the valve m is rotated and moves towards its seat, but not sufficiently to obstruct the flow. When the spindle f is unscrewed to its fullest extent, the valve m closes the passage and the screwed portion of the spindle is withdrawn into the space h. The valve cover may then be unscrewed without rotating the valve, and the main valve may then be removed.
Patent GB-597993-A (GB)
Title: Improvements in or relating to the production of beta-trichloroethane
IPC: C07C17/00
Filed: 1945-08-27
Abstract: Beta-trichlorethane is prepared by passing chlorine, hydrogen chloride and acetylene into a liquid, non-reactive chlorohydrocarbon maintained at a temperature not higher than 35 DEG  C. and in the presence of actinic light.  Some tetrachlorethane is formed, in increasing amount as the temperature is raised, and accordingly the preferred reaction temperature is between - 30 DEG  and 25 DEG  C. The non-reactive liquid chlorohydrocarbon may be the products of the reaction or initially, beta-trichlorethane or may be tetrachlorethane itself.  Desirably, the reaction is carried out under oxygen-free conditions.  Examples illustrate a continuous process wherein the reactants, in equimolecular proportions, are passed into a liquid mixture having the composition of the products of the reaction and an amount of the liquid mixture withdrawn continuously from the reaction vessel at about the rate at which it is formed, unreacted gases being recirculated, if desired, and the products separated by distillation. A tungsten filament lamp is used as the source of actinic light. Specification 344,592 is referred to.