baber/WOPTO huggingface dataset:
Patent GB-559676-A (GB)
Title: Improvements in or relating to polymeric materials
IPC: C08J7/12
Filed: 1941-07-02
Abstract: 559,676. Polyamides. DU PONT DE NEMOURS & CO., E. I. July 2, 1941, No. 8324. Convention date, July 2, 1940. [Class 2 (iii)] The stiffness, durability &c. of filaments, bristles, films, coatings and like bodies made from polyamides of the kind described in Specifications 461,236 and 461,237 is improved by treatment with substances containing one or more groups -N =C =X, where X is sulphur or oxygen, e.g. isocyanate or isothiocyanates, preferably diisocyanates. The treatment consists in the immersion of the polyamide body in the pure isocyanate, at 80-140C. or immersion in the isocyanate diluted with toluene or like hydrocarbon solvents followed by heating at 180-220C. Catalysts, e.g. metallic driers may be used to accelerate the reaction. Specification 504,344 also is referred to.
Patent GB-258497-A (GB)
Title: Improvements in or relating to the cleaning of boiler flues
IPC: F23J3/02
Filed: 1926-03-27
Abstract: 258,497. Harry, D. March 27, 1926. Cleaning, fluid-pressure processes for.-The flues 2, 3, 4 of a boiler of the Lancashire, Cornish, or like type are cleaned by providing a duct 6 beneath them into which the soot falls through openings 5, 8, the soot being ejected by means of steam or air under pressure delivered from a pipe 15 through jets 17, which opens a door 11 at one end of the duct and also blows out the soot. In order that the draught from flue 2 to flue 3 may not be short-circuited when the duct is empty, doors 7 are provided to close the openings 8, the doors being operated simultaneously from a handle 14.
Patent GB-879270-A (GB)
Title: Gas-liquid contact tower
IPC: B01D3/20
Filed: 1959-03-11
Abstract: 879,270. Gas - liquid contact apparatus. LEVA, M. March 11, 1959 [March 18, 1958; Dec. 15, 1958], No. 8419/59. Class 55 (2). A gas-liquid contact column 10 has arranged therein plates 17 which carry a thin film of liquid and have perforations 18 for the passage of liquid and gas down and up the column respectively, the perforations in one plate being offset relatively to the perforations in an adjacent plate and each perforation having a downwardly extending chimney 19 the lower portion of which is open above the liquid level on the plate below to receive gas flowing between the plates and arranged so that in use the gas is deflected downwardly on to but not through the surface of the liquid on the plate before passing upwardly through the chimney. The vertical spacing of the plates 17 varies from  to 6 inches and is usually from ¢ to 3 inches and the diameter of the apertures 18 varies from ¢ to 6 inches and is usually from 1 to 4 inches. Modified forms of chimneys are shown in Figs. 4-8. The chimney shown in Fig. 4 has a notched lower edge and rests on the upper surface of the plate below supporting the plates in position. The chimneys of Figs. 5 and 6 project slightly above the upper surface of the plate and raise the level of the liquid on the plate. In Fig. 8, the chimney is supported in a perforation by projecting lugs 45 and is so dimensioned that an annular gap is left between the plate and the chimney. The chimneys may be provided with a series of shallow vertical grooves or corrugations to ensure uniform wetting of the chimneys.
Patent GB-328089-A (GB)
Title: Improvements in connecting rods for use with radial cylinder engines and pumps
IPC: F16H21/34
Filed: 1929-03-15
Abstract: 328,089. Redrup, C. B. March 15, 1929. Connecting-rods. - In a multiple big-end assembly the auxiliary rods are pivoted between the flanges 2 of a split bush 1 mounted on the crank-pin. The halves of the bush are clamped by the caps 7 of the forked master rod 5, the split in the bush being out of register with the junction of the caps with the master-rod. Sawcuts 9 are made from the periphery of the bush to the apertures 4 for the pivot pins, so that the pivot pins are gripped by the bush when the caps 7 are tightened. Alternatively the apertures 4 may be bushed and the pivot pins floating. In this case end flanges on the bushes prevent endwise movement of the pivot pins and slots in the bushes are engaged by the flanges of the master-rod and its caps.
Patent GB-144019-A (GB)
Title: Improvements in scrolls of self-acting mules
IPC: D01H3/04
Filed: 1919-04-04
Abstract: 144,019. Boothroyd, A. April 4, 1919. Mules. - The scrolls are made with a foundation portion permanently secured to the scroll shaft and with interchangeable grooved operative parts. The foundation portion comprises a sleeve 1 with rope grooves 2 at each end and a central boss 3. The grooved operative parts 4 are secured to this boss 3 or to a ring or outer collar 5, and are made in one or two pieces. Additional crescent-shaped pieces 6, 7 may be secured in the grooves to vary the acceleration of the carriage. The rope, during the first portion of the outward run, may work in a groove in the surface of the boss 3 or ring 5. The annular portion of the scroll may be made in an oval or eccentric form 9.
Patent GB-668445-A (GB)
Title: Polymerization of liquid polymerizable organic compounds in elongated shapes
IPC: B29C39/00
Filed: 1950-04-06
Abstract: A liquid polymerizable organic compound is polymerized in the form of a rod, by introducing the compound into a vertical casing 11 of a synthetic linear polyamide, closed at its lower end 12, closing the upper end of the casing, and then polymerizing the compound by heat or by actinic light.  The casings are suspended under tension between members 7, 8 of a rack.  When heat is used for polymerization the rack is placed in an oven 3 through which hot air is blown. <PICT:0668445/IV (a)/1> The wall of the casing is between 0.002 and 0.010 inch and has a specified tensile strength.  After polymerization the casing is stripped from the rod, and the rod is ground and polished.  An after heat treatment may be given to the rod at a higher temperature and with the tension on the casing increased. Air is preferably excluded from the casing.  The compound may contain a catalyst, dyestuffs, plasticizers, lubricants or pearlescent materials.  The catalyst may be alpha, alpha1 - azodiisobutyronitrile, diethyl alpha, alpha1 - azodiisobutyrate, alpha, alpha1-azodicyclohexanecarbonitrile, alpha, alpha1 - azobis, benzoyl, lauroyl, acetyl benzoyl, diacetyl, or p-chloro benzoyl peroxides, or tertiary butyl perbenzoate.  Various concentrations of catalyst are described.  When polymerization is to be carried out with actinic light, the catalyst may be benzoin and similar vicinal ketaldonyl and acyloin compounds as disclosed in U.S.A. Specifications 2,367,660 and 2,367,661 and also various azo-type catalysts such as alpha, alpha1-azodiisobutyronitrile, as disclosed in Specification 622,374.  Polymerization temperatures are described. The polymerizable organic compound may be the amides, esters, and the nitriles of acrylic, chloroacrylic and alkacrylic acids, or vinyl and vinylidene compounds.  Various examples of materials are given.  The casing may be made of an interpolymer formed by reacting hexamethylene diammonium adipate and sebacate, and caprolactam. Specific examples of such compositions are described.  The reaction may take place under the conditions described in U.S.A. Specification 2,285,009.  The casing may be made of any type of synthetic linear polyamide or interpolyamide disclosed in U.S.A. Specification 2,130,523.  The casing may be made from an extruded tube.  A metered amount of air is injected into the tube as it is extruded.  As the tube leaves the die, which is maintained at 200 DEG C., it passes through a series of cooling jets.  The jets supply air at an angle to the tube such that the air moves with the tube.  The tube is then "floated" over a series of wooden spools, until it is received between two horizontal parallel belts which draw the tube to the desired thickness.  The thickness of the tube may be varied by regulating the speed of the belts.  The tube may also be drawn by clamping the tube at intervals at which it is to be cut and applying p  tension to the clamping device.  U.S.A.  Specifications 2,057,674, 2,154,639, 2,238,443 and 2,471,959 also are referred to.
Patent GB-556632-A (GB)
Title: Improvements in or relating to the production of briquettes
IPC: C10L5/14
Filed: 1942-06-26
Abstract: 556,632. Solid fuels. SCOTTISH MACHINE TOOL CORPORATION, Ltd., and CLEMENTS, A. B. June 26, 1942, No. 8813. [Class 50] Fuel briquettes are made in any usual type of briquetting machine from a mixture or aggregate comprising by weight 90 parts of finely ground coal, 10 parts of crude oil and 5 to 15 parts of sawdust.
Patent GB-411630-A (GB)
Title: Improvements in or relating to light projectors
IPC: F21W101/10
Filed: 1933-03-23
Abstract: 411,630. Light projectors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WALDRAM, J. M., c/o General Electric Co., Wembley, Middlesex. March 23, 1933, No. 8822. [Class 75 (iv).] In a light projector of large size, a spreader glass which is small compared with the aperture of the projector is placed between the light source and a lens or reflector adapted, in the absence of the spreader glass, to produce a substantially parallel beam in one plane at least, the said small spreader glass being optically equivalent to a much larger spreader glass placed between the lens or reflector and the observer, which large spreader glass would be inconveniently large to be produced in one piece. In the form shown, a reflector 1 of about 36 inches diameter is parabolic in vertical section and elliptical in horizontal section so as to produce a fan-shaped beam of small depth, and the filament 2 of an electric lamp bulb 3 is arranged at the common focus of the parabolic and elliptical sections and at the centre of a spherical recuperating reflector 4. In order to project some of the light above the horizontal, a small spreader glass 5 with horizontal prisms is placed between the bulb and the reflector 1. Specifications 108,988, 336,546, [both in Class 75 (iv)], 357,917, and 404,223 are referred to.
Patent GB-164292-A (GB)
Title: Means for setting eyelets
IPC: A43D100/02
Filed: 1920-01-30
Abstract: 164,292. Fairweather, W., (Singer Manufacturing Co.). Jan. 30, 1920. Setting eyelets and the like.-A duplex machine of the type having a double-ended tubular punch formed with clenching surfaces and associated with anvil members has the anvils constantly aligned with the punch and adapted to receive eyelets, insert them into punched holes, and clench them. The hollow double - ended punch, Fig. 3, has taper surfaces 2, to compress and c o n - solidate the material around the punchedout hole, and clenching surfaces 1, and is internally bevelled to produce the cutting edges which embrace an area slightly less than the operative area of the co-operating anvil 3, Fig. 5. The anvils are adjustably secured by nuts 9 to slides 3', and are surrounded by sleeves 6 with clenching surfaces 7 adjustably secured by nuts 10 to slides 8. Spring fingers 4, Fig. 1, on each side of the punch strip the work therefrom on withdrawal of the anvils, the work being held by a clamp 5.
Patent GB-362292-A (GB)
Title: An improved process and apparatus for pressing a non-circular sheath on to cables and for extruding non-circular tubes
IPC: B21C25/06
Filed: 1931-03-23
Abstract: 362,292. Squirting. SOCASO, Ltd., 10A, Spl³genstrasse, St. Gallen, Switzerland. March 23, 1931, No. 8951. Convention date, March 22, 1930. [Class 83 (iv).] A tube-forming extrusion press, more particularly for lead-sheathing cables, comprises a reshaping member beyond the die and mandrel which engages the metal while it is still following a conical path. A sheath 3, Fig. 1, for a core 4 is formed between a die 2 and a mandrel 1 both of circular cross section, and is then engaged by a shaping member 7 which changes in its length from a circular cross section to that desired. The final form may, for example, be substantially triangular such as that shown in Fig. 4, other examples being illustrated in the Specification. The shaping member 7, Fig. 6, may be rotated in accordance with the rotation of a disc 10 shaped to engage the cable, in order that variations in pitch with a lag corresponding to the time taken by the cable to travel between the members 10, 7 may be compensated for. The feed of the cable rotates a disc 11 and, through gearing, a disc 13, half a revolution of which corresponds to the required lag, the disc carrying latches 14 which are rocked by pins 17 on a disc 16 rotated from the disc 10. Those latches which are rocked actuate a ratchet mechanism to release an independently driven disc 15 which drives the shaping member 7. Electrical relays may replace the mechanical transmission. The disc 10, in a modification, may be integral with a gauge which rectifies small irregularities and transmits its motion to the member 7, or to an auxiliary member with which the shaping member is driven synchronously. Other modifications employing indicating devices with which the shaping member is synchronized are described.
Patent GB-755761-A (GB)
Title: Method for the production of photosensitive cadmium compounds
IPC: C09K11/88
Filed: 1954-03-26
Abstract: <PICT:0755761/III/1> Cadmium sulphide or selenide having improved electrical properties have halide ions incorporated in the crystal structure of the material.  The sulphide and selenide are prepared by reacting cadmium metal vapour with a reactant gas or vapour containing free or combined sulphur or selenium, particularly hydrogen sulphide or hydrogen selenide, in the presence of a gas containing a halide, particularly hydrogen chloride.  Other halides such as hydrogen bromide, hydrogen iodide and methyl chloride, chlorine, bromine or iodine may also be employed.  The production may be effected in a furnace as shown in Fig. 2 wherein a silica tube 28 is heated by a two zone furnace 20 thereby forming a metal vaporizing zone 22 and a reaction zone 24.  Reactant gas is fed through pipe 42 and the cadmium metal is contained in a holder 34 provided with a gas inlet 32 and nozzle outlets 38 associated with a rod 40.  A loose glass wool plug 30 closes the other end of the tube 28.  In operation the vaporizing zone 22 is maintained at 600 to 750 DEG C. and the reaction zone at 850 to 1000 DEG C.  Hydrogen sulphide or selenide reactant is fed through pipe 42 and an inert carrier gas is passed through tube 32 over the cadmium metal charge in the holder 34. Suitable carrier gases are helium, nitrogen, argon and neon, but hydrogen may also be used.  The vaporized cadmium leaving the holder 34 through the the nozzles 38 reacts with the hydrogen sulphide or selenide to form cadmium sulphide or selenide which deposits about the nozzles 38, on the rod 40 and on the sides of the tube 28.  The halide may be supplied by bubbling the hydrogen sulphide for example, through aqueous hydrochloric acid solution or alternatively gaseous hydrogen chloride may be mixed with the reactant gas or with the carrier gas.  If desired, the halide may be introduced into the crystal lattice after the crystals have formed; in this case the apparatus is operated as described but without the halide.  When the cadmium metal is consumed and crystal growth has ceased, the halide is then passed into the reaction zone with the carrier gas or with the reactant gas.  The furnace is thereafter allowed to cool with the carrier gas still flowing.  The conductivity of the resulting cadmium sulphide or selenide may be reduced by the introduction of a known number of silver or copper cations into the crystal lattice.  Thus five parts per million of copper may be incorporated by immersing the cadmium sulphide in 0.00001 molar aqueous copper nitrate solution, agitating, decanting, washing, and drying in air below 150 DEG C., followed by firing at about 700 DEG C. for about 20 minutes in an atmosphere of hydrogen.  The crystals are allowed to cool to a temperature below 150 DEG C. in the same atmosphere before exposure to air.
Patent GB-537942-A (GB)
Title: Flange jack
IPC: F16L23/00
Filed: 1940-05-23
Abstract: 537,942. Prising tools. PERSSON, H. May 23, 1940, No. 9111. Convention date, Sept. 18 1939. [Class 61 (ii)] A device for separating flanged pipes &c. comprises an operating screw 10 with a conical end 14 adapted to force its way between the flanges F and working through a tapped hole in a cylindrical nut member on the opposite ends of which are pivoted two hook jaws 40 with ends 42 adapted to engage holes B in the flanges, the jaws being cranked in opposite directions so that the ends 42 are located directly opposite one another.
Patent GB-672416-A (GB)
Title: Improvements in the preparation of ª-haloethylbenzhydryl ethers
Filed: 1950-04-13
Abstract: A b -halobenzhydryl ether is obtained by heating a benzhydryl halide with ethylene oxide in the presence of a basic catalyst, e.g. benzhydryl bromide is heated with ethylene oxide at a temperature between 100 DEG  and 180 DEG  C. in the presence of a carbonate of an alkaline metal to produce b -bromoethylbenzhydryl ether.
Patent GB-991947-A (GB)
Title: Improvements in or relating to acoustical ceiling structures and acoustical panels for installation in acoustical ceiling structures
IPC: E04B9/04
Filed: 1963-03-07
Abstract: 991,947. Acoustic panels. SOUNDLOCK CORPORATION. March 7, 1963 [June 11, 1962], No. 9173/63. Heading E1V. An acoustic panel, for a ceiling, has an upturned flange 34 at one edge and a downwardly opening channel 40 at the opposite edge to form a connection between adjacent identical panels. The panels are formed of pan 12, having perforations 20, and a reflecting pan 14 joined together by return flanges 36 and 66 of the perforated pan engaging flanges 54 and 56 of the reflecting pan on the two edges and by horizontally projecting folded flanges 74 on the two other edges. The interior of the panel is filled with a honeycomb layer 16 having sound deadening material within the cells. The outer flange 68 of the channel 40 has a flanged foot 72 of such a height that when engaged by the horizontal portion of the flange 34 the panels are located with coplanar lower faces. The panels are supported from the flanges 74 by longitudinal sheet metal T-sections 80 and by interlocking of the flanges 34 and channels 40.
Patent GB-939004-A (GB)
Title: Water-closet basin
IPC: E03D11/02
Filed: 1961-03-14
Abstract: 939,004. Water-closet pans. L. WITVROUW. March 14, 1961 [March 18, 1960], No. 9240/61. Class 26. A water-closet basin includes a bowl 2 of synthetic plastics material having a water inlet 5, a circulating rim 1 therefor and an outlet 2 as shown, Fig. 2, a base 4 with a discharge opening, and an element 3 intermediate thereto, (both of synthetic plastics material), made up of a basin 8 and an outlet tube 9, the element 3 forming a siphon between the bowl 2 and base 4. The base 4 may have three discharge openings-one opening 11 in the rear wall thereof and openings 11<SP>1</SP> and openings 11<SP>1</SP> and 11<SP>11</SP> in the lower wall, the two discharge openings not required being closed by sealing plugs 14, Fig. 5, the rim 1 and inlet 6 may be formed integrally but separate from the bowl 2, or the rim 1 and bowl 2 may be integrally formed. The openings 11<SP>1</SP> may include a straight adapter and the opening 11 may include an adapter, straight (16) or curved (18) in profile, and including a ventilation pipe 17. The base 4, Fig. 8, may be fixed to a supporting base 19 of synthetic plastics material by threaded pegs 22 projecting vertically from the base 19 into holes in the base 4 and capped by nuts 23, the base 19 being screwed to the floor.
Patent GB-952101-A (GB)
Title: Improvements in evaporating devices
IPC: B01D1/22
Filed: 1961-03-14
Abstract: 952,101. Evaporators. NEDERLANDSCHE THERMO CHEMISCHE FABRIEKEN N.V. March 14, 1961 [March 29, 1960], No. 9382/61. Heading B1B. Liquids are evaporated, e.g. water is removed from arinal material, in a cylindrical vessel 1 provided with a steam heating jacket, wherein the material is flung against the wall up to the top of the vessel by agitating members 17, which are rotated on axle 6, so that the whole hot inner wall is covered by the material. The vapours pass through openings 14 into axial tube 13, then flow out of openings 15 into baffle chamber 3 and are finally withdrawn through pipe 21. When evaporation is complete, the treated material is discharged through conduit 11. An apparatus designed for a continuous process is referred to.
Patent GB-558207-A (GB)
Title: Improvements in the construction of electric dry cells
IPC: H01M6/48
Filed: 1942-07-07
Abstract: 558,207. Celluloid and synthetic resin dry battery parts. BURNDEPT, Ltd., and RICHARDSON, R. P. July 7, 1942, No. 9424. [Classes 2 (ii) and 2 (iii)] [Also in Group XXXVI] In a layer-type dry battery comprising shallow boxes 1 nested one within the other and each containing a double zinccarbon electrode 3, a bibulous layer 4 soaked in electrolyte, and a depolarizing layer 5, the electrode 3 of one cell makes contact with the depolarizer in the next cell through a hole in the bottom of the box, each box being formed with a shoulder 2 so that the bottom of one box nests within the top portion of another. The boxes are moulded with a shallow groove to accommodate a tapping lug on the electrode. The depolarizing lozenge is strengthened by an encircling tape of elastic material. The boxes may be made of celluloid, polyvinyl chloride, polystyrene, polyvinylidene chloride, or olefine-polysulphide plastics.
Patent GB-291566-A (GB)
Title: Improvement in and making up of solid panel fencing
IPC: E04H17/14
Filed: 1927-04-06
Abstract: 291,566. King, W. C. April 6, 1927. Solid fencing.-In solid fencing composed of vertical pales C, capping and weather rails A, B, the capping and weather rails are channelled to receive the pales which are otherwise unsupported. The capping and weather rails are carried directly by the posts, and the pales are locked by a key-piece F.
Patent GB-1298514-A (GB)
Title: Method and apparatus for constructing tunnels and the like
Inventor: VOS CHARLES JACQUES
IPC: E02D29/05
Filed: 1970-02-26
Abstract: 1298514 Seals HOLLANDSCHE BETON MAATSCHAPPIJ NV 19 April 1971 [26 Feb 1970] 9484/70 Heading F2B [Also in Division E1] A seal for preventing the ingress of water into an opening 8 of a chamber 3 moving relative to a pipe 11 during tunnel construction, may comprise independently inflatable hoses 9, 10. The hoses are sequentially inflated and deflated, see Figs. 4.1-4.5, so that at least one of them is always inflated to seal the space between the opening and the tube. Any water that enters the space between the hoses is pumped out through an aperture 20. In an alternative form, the seal comprises two rubber members with grease under pressure between them.
Patent GB-917428-A (GB)
Title: Thermally stabilised synthetic resin composition in the form of granules, and an aqueous suspension thereof
IPC: C08K5/09
Filed: 1960-03-18
Abstract: A water-dispersible synthetic resin composition comprises granules of less than 50m  each comprising particles of a vinyl chloride homopolymer or copolymer with vinylidene chloride or vinyl acetate, particles of a water-insoluble thermal stabilizer for the polymer and particles of an alkali metal or ammonium salt of a C12+ organic acid bonded together by the free C12+ organic acid.  Thermal stabilizers specified are heavy metal stearates.  Organic acids specified are fatty, napthenic and resin acids.  The granules can be prepared by wet or dry methods, e.g. by adding the other ingredients to an emulsion polymer latex and spray drying or dry mixing and grinding to the specified size. In a specific example of the latter procedure trichloroethylene was sprayed into the mixture while the mixer was running, the heat generated by the mixing being sufficient to boil it off.  The product may be added to an aqueous pulp of wood and cellulose fibres such as is used in the wood-fibre sheet, carton and paper industries.  It is readily dispersible in water of pH greater than 7,5 and can be flocculated in an aqueous dispersion of fibrous material by adding an acid-reacting salt of a polyvalent metal, e.g. aluminium sulphate or alum so that it settles on the fibres.