baber/WOPTO huggingface dataset:
Patent GB-687936-A (GB)
Title: Apparatus for the construction of perspective drawings
IPC: B43L13/14
Filed: 1949-10-03
Abstract: 687,936. Drawing-appliances. HALDEN & CO., Ltd., J. and MEREDITH, R. A. Nov. 6, 1950. [Oct. 3, 1949; Jan. 16, 1950] Nos. 25326/49 and 1127/50. Class 11. An apparatus for the construction of perspective drawings from a plan view and known elevational heights, comprises a picture plane 9 supported at an angle to a plan bearing surface 45, a light projector 22 producing an outwardly spreading beam of light, and an indicator 30 comprising a true elevational height scale or supporting an elevational drawing on tracing paper, the indicator being interposed between the projector 22 and picture plane 21 being connected to the plane 9, so that a shadow 49 produced from the scale or drawing is thrown on to the plane, the indicator being moved to different positions over the plan, such that a perspective view may be plotted on the plane from the shadows produced thereon. The plane 9 is hingedly mounted on the surface 45, arms 19 secured to a plate 21 being connected to the plane 9. The plate 21 supports the light projector 22 and a graduated rod 23 vertically adjustable in the plate 21, thus permitting adjustment of the inclination of the plane 9 and projector 22 to the surface 45. The projector 22 radiates a cone of light by means of a lens, reflector, or a shade. The indicator 30, as shown, comprises a frame which supports a sheet of tracing paper 48 bearing a scale 47 of elevational heights or an elevational drawing on tracing paper which may have points pricked therethrough, or alternatively, the indicator comprises a single member bearing a vertical scale and carrying a vertically slidable marker or markers for indicating various elevational heights; in each case, means, such as a mark or pointer, is provided on the indicator to register the scale or drawing vertically above the required points on the plan.
Patent GB-600177-A (GB)
Title: A tufting needle embodying a cutter, wool-feeding action, and length of stitch adjuster
IPC: D05C15/06
Filed: 1945-09-29
Abstract: 600,177. Sewing. CURTIS, F. C. Sept. 29, 1945, No. 25361. [Class 112] Tufting-needles.-A tufting-needle with means for feeding, measuring, and cutting the yarn, comprises a pointed tube a slidable in a similar tube b of equal length by means of a collar g attached to the inner tube by screws passing through slots in the outer tube, the tubes having eyes d, c respectively. The upper part of the eye of the outer tube communicates with the pointed end of the tube by a passage r; the inner tube has a deflecting wall e below its eye to guide the yarn out through the eye as it is fed down the tube. The outer tube carries a prong s in its upper part to prevent the yarn from moving up the tube (the inner tube being slotted to clear this prong), and the inner tube has a similar prong lower down. A collar i adjustably fixed to the outer tube engages the fabric being operated on to determine the length of the tuft, and a similar collar k limits the downward movement of the collar g when this is required to be less than the length of the slots through which this collar is attached to the inner tube; the outer tube may be graduated to facilitate correct positioning of these collars. In operation, the needle is inserted in the fabric with the inner tube a in its uppermost position, in which its point is level with that of the outer tube b, and the inner tube is then moved down to the position shown, taking with it the yarn, of which the end remains just inside the eye d; the inner tube is then retracted, so that the yarn (held by the prong s) is extruded through the eye d and is carried along the passage r into the eye c of the outer tube; the needle is then withdrawn just clear of the fabric and reinserted in the next position, and when the inner tube is then depressed the yarn is cut between the upper edge of the eye c and the lower edge of the eye d, these edges being sharpened for the purpose.
Patent GB-518627-A (GB)
Title: Improvements relating to the winding of endless films
IPC: G11B15/34
Filed: 1938-08-30
Abstract: 518,627. Winding kinematograph films. I. G. FARBENINDUSTRIE AKT.-GES. Aug. 30, 1938, No. 25368. Convention date, Sept. 1, 1937. [Classes 97 (i) and 98 (ii)] An endless non-twisted film is coiled so as to constitute two coils with the same number of turns wound in the same direction. As shown in Fig. 4; the two coils are concentric and the film leaving the inside of the inner coil passes over the inner coil and under the outer to return to the outside of the outer coil. For sound films, a reproducing system 5, 6, 7, 8 may be mounted between the coils or within the inner or outside the outer coil. In the arrangement shown in Fig. 5, the two coils are wound side by side on the core 9. The film passes from the inside of each coil to the outside of the other. The two loops are driven by a common toothed drum 10. The core 9 may be tapered to facilitate the removal of the inner turns of the coils of film.
Patent GB-1521154-A (GB)
Title: Forming apparatus for tubes
IPC: B29C57/08
Filed: 1976-06-18
Abstract: 1521154 Expanding mandrel for shaping tubes A JOHANSSON 18 June 1976 [23 June 1975] 25458/76 Heading B5A The softened end of a tube is deformed by a mandrel 2 having an expandible and retractible portion 10 (as shown for producing a groove) comprising two groups of alternating segments, each groove being expanded and retracted with respect to the mandrel body by separate mechanism. In Fig. 1, each of one group of segments is moved by a respective rod 14 operated by a plate 7, shaft 5 and piston/ cylinder. The other group are moved by respective rods 18, plate 8, shaft 6 and piston/cylinder In Fig. 5, pressure fluid fed through channels 23 moves the two segment groups 17"/21" in manner equivalent to Fig. 1, with return effected by suction and springs. The segments 17" are tapered (here stepped) to receive the segments 21" when retracted, and are expanded before the smaller segments 21". Coolant or heating fluid flows through channels 31. The tube is heated and placed on the mandrel before or after segment expansion, and is sucked on to the moulding surface.
Patent GB-839953-A (GB)
Title: Improvements in or relating to travelling-wave tubes
IPC: H01J23/30
Filed: 1958-08-08
Abstract: 839,953. Travelling-wave tubes. HUGHES AIRCRAFT CO. Aug. 8, 1958 [Sept. 4, 1957], No. 25516/58. Class 39(1). A travelling-wave tube with a focusing magnet 44 and a set of ferrite strips 48, biased by the magnetic field, disposed near the slow-wave structure to provide non-reciprocal attenuation, also has compensating magnets 50 for cancelling out the component of the magnetic field which is orthogonal to the ferrite biasing component. As shown the ferrite strips and compensating magnets form a composite sandwich. In a modification, the magnets are shaped as shown in Fig. 5, so as to receive ferrite rods 48<SP>1</SP>. The magnets may be composed of ferrite material. The slow-wave structure of the travelling-wave tube consists of rings 20 interconnected alternately by diametrically opposed segments 22, the structure being equivalent to two contrawound helical conductors. A set of ferrite strips is disposed on each side of the structure.
Patent GB-214166-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C5/02
Filed: 1923-10-13
Abstract: 214,166. St. Helens Cable & Rubber Co., Ltd., and Brooking, J. H. C. Oct. 13, 1923. Drawings to Specification. Air tubes.-An air-tube is formed wholly of rubber sufficiently thick to withstand the inflation stresses so as to be used in an outer cover the walls of which are not capable of withstanding the stresses. Specifications 905/13 and 11554/14 are referred to.
Patent GB-241237-A (GB)
Title: Improvements in telegraphy and telephony of the kind employing high frequency oscillations
IPC: H03B9/01
Filed: 1925-10-13
Abstract: 241,237. Turpain, A. C. L., and Soc. des Etablissements Gaum.ont. Oct. 13, 1924, [Convention date]. Wired wireless systems; thermionic generators; coupling oscillating and radiating circuits; aerials; coupling aerial and detector circuits; undesired signals, eliminating; thermionic valves, arrangement and connections of; receiving sets, construction or; multiplex signalling.- In a multiplex wired wireless system for superimposing very high frequency oscillations on existing power or signal circuits, oscillators of the Hertzian type, without earth connection, are employed and the apparatus is arranged in a rigorously symmetrical manner within an electrically conducting casing so as to prevent interference from local electrical disturbances. In the transmitter, Fig. 1, the oscillating circuit comprises a copper tube 12 mm. in diameter, of which the half pC is connected to the plate of the valve T while the half gC is connected to the grid. These two halves are separated by a condenser C which may be reduced to a short air-gap in the tube and are connected to the poles of a source of current So driven by a motor M, the grid side of the condenser being also connected to the filament f. Chokes S, S, confine the high frequency oscillations to the required paths. Above the split ring pC, gC, is a similar ring t which is formed with an antenna comprising horn-like extensions t<1>, t<7>, which are to be juxtaposed to the line. The ring t is of the same size as the ring pC, gC, though shown as larger in the drawing, and is mounted parallel to it. The apparatus is arranged with rigorous symmetry inside a metallic casing e. In the receiver, Figs. 2, 4, the grid and plate of the detector are connected to the two halves of a Hertzian oscillator pC, gC, the antenna comprises an extension t<1>, t<7> of a ring t, and the telephone is connected with a third ring t<1>. The parts t<1>, t<7>, of the antenna may be integral, as shown in Fig. 2, or separate, as in Fig. 1. The apparatus is enclosed in a metallic casing e which is extended at u to cover the telephone leads and is connected to the diaphragm which thus forms part of the protective casing. When a loudspeaker is used its polarizing battery may be encased in metal, and the instrument may be covered with metal fabric the edges of which are coated with graphite and gripped under the horn. The Specification gives a scheme of wavelengths for enabling each of a number of stations to send and receive from each of the others in a system. The distance apart of the condenser plates may be adjusted, for tuning purposes, by means of a rocking insulated rod. having a conducting portion at the point where it enters the casing e.
Patent GB-1269937-A (GB)
Title: Improvements in or relating to methods of producing wires
Inventor: REDMOND GLYN BERESFORD
IPC: B21C37/04
Filed: 1968-05-29
Abstract: 1,269,937. Extruding; making wires and wire ropes. DUNLOP HOLDINGS Ltd. 13 May, 1969 [29 May, 1968], No. 25601/68. Headings B3A and B3P. [Also in Division D1] A multi-strand wire is produced either by hydrostatically extruding a wire billet 4 through a multi-orifice die 2 or by simultaneously hydrostatically extruding wires 12 through a multiorifice die 9 and feeding the extruded wires in a bundle from the die. The extrusion die 2 is attached to the extrusion chamber 1 by an annular cap 2a. The hydrostatic fluid is a mixture of glycerine and glycol in the ratio 3 : 1 by volume. The wire billet 4 or the wires 12 are fed from a spool in the extrusion chamber and are of carbon steel. The extruded wires may be pulled to assist passage through the die. The wires may be twisted to form yarns and at least two yarns may be twisted together to form a cord.
Patent GB-1162101-A (GB)
Title: Process for the Preparation of Instantaneously Soluble Products
IPC: A23L2/10
Filed: 1966-09-13
Abstract: 1,162,101. Drying process and apparatus. PROGRESS A.G. FœR VERFAHRENSTECHNIK. 13 Sept., 1966 [13 Sept., 1965; 7 Feb., 1966; 5 April, 1966], No. 25602/66. Heading F4G. [Also in Division A2] In apparatus for drying mixtures of solid and liquid components to form soluble products, e.g. powders of food products, the material to be dried is formed as a stationary layer in one or more treatment vessels 15 . . . 18 on a porous diaphragm 31 and a moisture free gaseous drying medium, e.g. pure nitrogen or carbon dioxide, at a temperature insufficient to vaporize the liquid component, e.g. 2‹ to 80‹ C., is passed vertically upward therethrough at a specified pressure equal to the sum of pressures necessary to overcome the flow resistance of the material, the hydrostatic pressure of the material layer and the flow pressure through the gaseous medium through the material being dried. Material to be dried, e.g. coffee or tea extract, which has the aromatic and flavouring components removed by a stripper 1 for later addition in a collector 38 from an adsorbent chamber 8 to the dried material passes into the treatment vessels 15, 18 or on to a perforated conveyer divided into treatment zones (Fig. 2). An inert gas, dried in adsorption beds 23, 23<SP>1</SP> and at a temperature insufficient to vaporize moisture in the material is circulated serially through beds 18, 17, 16 respectively and directly through bed 15 via a pump 4 and a heater 5. The gas is recirculated for retreatment via lines 27. The material is formed as beds of 1 to 100 mm. thickness on diaphragms, e.g. of polyethylene monofilaments having a pore diameter of 10 to 100 microns so that the upward flow of gas therethrough is widely dispersed and the dried material is formed in a porous, pumiceous manner. Stirrers 32 rotatable about a vertical axis and movable in axial direction are positioned in the or each vessel and may be formed as a grinding means. In modifications, the reaction vessels may be superposed and/or comprise an additional post-drying chamber and various discharge means are described.
Patent GB-584774-A (GB)
Title: Improvements in or relating to the manufacture of carboxylic acids containing sulphur
Filed: 1944-12-21
Abstract: An a -acylamino-b -thiol-carboxylic acid is obtained by hydrolysing the corresponding a -acylamino-b -thiol-thiocarboxylic acid in a neutral or acid aqueous medium.  Advantageously, the reaction is carried out in the presence of dilute acid, e.g. a mineral acid, at elevated temperature, in the presence of a proportion of a water-miscible organic liquid such as alcohol or acetone, and in an inert atmosphere.  In an example, a -acetyl-amino-b -thiol-thioisovaleric acid prepared by the method described in Specification 584,736 is heated with water at 100 DEG  C. in a rapid current of nitrogen until the evolution of hydrogen sulphide is complete, to obtain a solution of a -acetylamino-b -thiol-isovaleric acid.
Patent GB-394298-A (GB)
Title: Improvements in or relating to roentgen films having two sensitive coatings
IPC: G03C5/16
Filed: 1931-09-14
Abstract: 394,298. R÷ntgen-ray films. JAEGER, W., 1, Konradstrasse, Aarau, Switzerland. Sept. 14, 1931, No. 25713. Convention date, Oct. 1, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 98 (i) and 98 (ii).] To avoid lack of sharpness in the images on superimposed films two films c<1>, c<2> having sensitized coatings b<1>, b<2> and intensifying screens a<1>, a<2> are separated by a non- actinic layer d which prevents actinic light passing from one side to the other. The layer d may be a coloured adhesive. The films need not be adhesively united but superimposed in which case the optical separating layer having a reflecting action is formed by the two non-coated backs of the films.
Patent GB-140981-A (GB)
Title: Improvements in flushing cisterns
IPC: E03D1/04
Filed: 1919-10-21
Abstract: 140,981. Levick, J. Oct. 21, 1919. Valve and siphon discharge water-waste preventers.-The tank is closed except for an air pipe 3 and a narrow passage between the top of the bell and the air pipe. The siphon and flush pipe are thus filled with water as far as a valve 9, Fig. 2, situated in the course of the flush pipe. When the valve is raised by means of a pushbutton 16 siphonic discharge commences. The valve is unseated by means of a plunger 12 carrying a part 14 having an inclined surface adapted to engage a similar part 15 connected to the pushbutton.
Patent GB-937357-A (GB)
Title: Bridge deck construction
IPC: E01D19/12
Filed: 1961-07-17
Abstract: 937,357. Bridge decks. E. D. SABIN. July 17, 1961 [July 21, 1960], No. 25771/61. Class 20 (4). A bridge deck comprises a grating 10 spanning support means (not shown) and exposed from the bottom, and a layer 20 of aggregate retained thereon providing passages therethrough into the grating openings, the layer 20 being covered by a layer 22 of finer aggregate. An asphalt or tar road surface 24 which may embody a fine aggregate 25 is provided. In an alternative construction, Fig. 3 (not shown), the layer of aggregate retained on the grating is covered by a layer of bituminous material which includes an aggregate of a finer grade. In any or all of the layers, the individual rock elements may be coated, for example with bituminous material.
Patent GB-278888-A (GB)
Title: Improvements in or relating to reels for electric cables, wire and the like
IPC: B65H75/14
Filed: 1926-10-16
Abstract: 278,888. Chambers, F. W. Oct. 16, 1926. Reels.-A reel for electric cables, wires &c. more particularly for those of small cross section consists of end flanges 3 of plywood, cardboard, metal, &c. secured to a tubular metal hub 2 by integral tongues 5 fastened by nails, solder, &c. and in some cases by turned over flanges 6.
Patent GB-406070-A (GB)
Title: Improved apparatus for ejecting the contents of pit tubs, wagons and the like
IPC: B65G67/00
Filed: 1932-09-17
Abstract: 406,070. Rotary tipplers. DICKINSON, W. H., 52, Spring Terrace Road, Stapenhill, Burton-on-Trent. Sept, 17, 1932, No. 25904. [Class 78 (iv).] A hood 13<a> is supported by arms 13 pivoted at 10 on the tippler frame and is provided with rollers 16 which engage a cam 17, which holds the hood clear of the wagon entering the tippler, and a cam 18 which prevents the hood from moving away from the wagon during the first part of the tipping movement. On further movement of the tippler the hood is free to turn and the load is released, and the hood is afterwards brought back to the initial position by the cam 17. The hood may have end pieces or wings to prevent spilling, the arms 13 may be leaf springs, the rollers 16 may be spring loaded, or the hood may be spring mounted.
Patent GB-821704-A (GB)
Title: Improvements in or relating to exothermic mixtures and the use thereof
Inventor: BUNBURY FREDERICK MOLESWORTH
IPC: C22B5/06
Filed: 1956-08-24
Abstract: An exothermic mixture which can be formed into a shape without recourse to storing consists of aluminium and an oxidizing agent, optionally containing up to 10% of a fluoride and/or a refractory filler, which is compounded with an aqueous colloidal solution of a gum or resin emulsified in a volatilizable or combustible organic liquid the quantity of water present being at most 40% of the emulsion.  In an example quoted, 5% of an emulsion of: Gum arabic 23%, Kerosene 47%, Water 30% is added to an exothermic mass consisting of a mixture of aluminium powder, iron oxide, cryolite and a refractory filler.  The mass may then be shaped to form e.g. a sleeve lining for a riser cavity.  The Provisional Specification also discloses the addition of a combustible or volatilizable liquid, e.g. a hydrocarbon oil, to the exothermic mixture or the addition of a colloidal solution of, for example, a gum or resin in an organic solvent or water. Specification 627,678 is referred to.
Patent GB-1033473-A (GB)
Title: Improvements in or relating to gaskets for plate heat exchangers
Inventor: USHER JOHN DENNIS
IPC: F28F3/10
Filed: 1964-06-24
Abstract: 1,033,473. Plate heat exchangers. A.P.V. CO. Ltd. March 12, 1965 [June 24, 1964], No. 26207/64. Heading F4S. [Also in Division F2] A gasket 3 intended for use in the gasket grooves 1 of a heat exchange plate comprises two or more layers, e.g. 4, 5 of compressed asbestos fibre or other sealing material bonded or secured together, at least one outside layer, e.g. the layer 5 being narrower than the other layer or layers so as to fit over the flat portion 2 of the bottom of the gasket groove 1. The width of the other layer or layers is such that their edges are supported by the sides 6 of the gasket groove against sideways movement.
Patent GB-1202127-A (GB)
Title: Production of foamed resins
Inventor: SKINNER STANLEY JOHN
IPC: B29C44/46
Filed: 1968-05-31
Abstract: 1,202,127. Extruding foamed thermoplastic synthetic resins. MONSANTO CHEMICALS Ltd. 21 April, 1969 [31 May. 19681, No. 26237/68. Addition to 1,034,120. Heading B5A. [Also in Division C3] The extrusion process for making foamed thermoplastic synthetic resin described in Specification 1,034,120 is modified in that the blowing agent used comprises an olefinic hydrocarbon, which term includes mono- and diolefinic hydrocarbons, having from three to five carbon atoms. Specifically mentioned are propylene, butylene, isobutylene, butadiene and isoprene, a preferred mixture for the process being polystytene with isobutylene. More than one of such blowing agents may be used or a mixture including a lower aliphatic hydrocarbon, e.g. isobutylene and pentane and isobutylene and trichlorofluoromethane, where the proportion of the lower aliphatic hydrocarbon may be up to 50% by weight. A list of nucleating agents is given, the resins mentioned being those given in the above-mentioned Specification. The resin/blowing agent mixture may be cooled prior to extrusion, e.g. by means of water, oil or low-pressure steam flow in a suitably disposed jacket. The extrusion dies that may be used are as described in Specifications 1,034,120, 1,098,408, 1.159,920 and 1,166,937. In ex amples, a polystyrene/isobutylene mixture having 11À5% by weight of the latter was extruded to form a board of density 1À28 lbs./cu. ft., a 1À35 lbs./cu. ft. polystyrene board was produced using a 70: 30% isobutylene/trichlorofluoromethane mixture, as blowing agent and a 1À55 lbs./cu. ft. polystyrene board was produced using 14% by weight butadiene in the foamable mixture.
Patent GB-869848-A (GB)
Title: Multiple effect vacuum evaporator
IPC: B01D3/10
Filed: 1959-07-31
Abstract: <PICT:0869848/III/1> A multiple effect vacuum evaporator comprises a plurality of separating stages each having a separating vessel and external heating means, the final separating vessel 18 containing a vapour condensing member 23 and each of the preceding separating vessels 1 containing a vapour scrubbing member 6.  In Fig. 1 only one such preceding separating vessel is shown.  Air is first evacuated from the apparatus through a pipe 29 and the liquid to be treated, e.g. a spent coagulating bath employed in rayon manufacture, is introduced by pipe 5 into the first stage heater 2 where it is heated by steam from a booster 17.  Heated liquid passes into vessel 1 from pipe 3 and returns by pipe 4 to the heater 2.  It is then passed by pipe 22, level controller 21, and pipe 22a into the second stage heater 15 where it is further heated by vapour generated in vessel 1, this vapour having passed through an entrainment separating member 7, a vapour scrubbing member 6, and a pipe 16.  Part of the vapour from the first separating vessel may be returned to the first stage heater 2 by conduit 16a.  Liquid from heater 15 passes into the second stage separating vessel 18 from pipe 19 and is recirculated to the heater by pipe 20 until liquid of the required density is obtained, when it is removed by an outlet 30.  During evaporation a dilute solution of sodium hydroxide is showered into the vapour scrubbing member 6 equipped with perforated trays 6a from a nozzle 14a to remove acidic elements from the vapour.  The sodium hydroxide solution is recirculated through pipes 8 and 14 by a pump 13 and is maintained at the temperature of the vapour generated in vessel 1 by a heating member 11.  Cooling water is showered into the condensing member 23 from a nozzle 26 and the vapour generated in the vessel 18, after passage through an entrainment separating member 25, is thereby condensed.  The member 23, which is equipped with perforated trays 23a, is heat-insulated on its inside 24, thereby preventing condensation of vapour before its entry into the member 23.