baber/WOPTO huggingface dataset:
Patent GB-1378628-A (GB)
Title: Diffraction crystals
IPC: G21K1/06
Filed: 1973-02-02
Abstract: 1378628 X-ray diffraction apparatus HEWLETT-PACKARD CO 2 Feb 1973 [14 Feb 1972] 5391/73 Heading H5R In a bent diffraction crystal, geometrical aberration of a diffracted X-ray beam consequent upon the curved surface of the crystal having a radius of curvature equal to the diameter rather than the radius of the Rowland circle is reduced by the production of an aberration of opposite sign due to strain: this may be achieved by suitable choice of the diameter and thickness of the crystal compared with the radius of curvature with which it is bent. As described, a spherically bent quartz crystal is fabricated by the method disclosed in Specification 1,289,399. Referecne has been directed by the Comptroller to Specification 1,289,399.
Patent GB-1163822-A (GB)
Title: Polyamide Blends
IPC: C08L77/00
Filed: 1967-02-03
Abstract: 1,163,822. Polyamide blends. ALLIED CHEMICAL CORP. 3 Feb., 1967 [3 Feb., 1966], No. 5415/67. Heading C3R. A nylon blend suitable for tyre cords comprises (a) 40 to 90 wt. per cent of nylon 6 or 66 and (b) 10 to 60 wt. per cent of a copolymer containing at least 35 mol per cent units derived from a monomer and at least 18 mol per cent from a monomer where R is H or acyl; m and n are each 0, 1, 2 or 3, but are both 0 in the first formula when R 1  is phenylene; R 1  is meta-phenylene or cyclohexylene; and R 2  is para-phenylene or -cyclohexylene. Blending may be effected by melting or precipitation from a common solvent. To prevent interaction in the melt carboxyl end groups in the copolymer may be reduced by including in the copolymerization up to 10 mol per cent of a monoamine, e.g. benzyl-, α- phenylethyl-, ethyl-, i-propyl-, n-heptyl- or cyclohexylamine, aniline or p-toluidine, or of a diamine, e.g. an alkylene, cycloalkylene or arylene diamine. In examples copolymers of benzylamine - 3 - carboxylic acid and benzylamine - 4 - carboxylic acid, benzylamine - 4 - acetic acid or aminomethylcyclohexane-4-carboxylic acid are used, usually derived from a mixture of monomers in which R is both H and acyl.
Patent GB-1141995-A (GB)
Title: A method of purifying liquids and a device for effecting the method
Inventor: MALINOVSKY VSEVOLOD ALEKSANDRO
IPC: B01D17/02
Filed: 1966-02-08
Abstract: 1,141,995. Purification of water. VSESOJUZNY ZAOCHNY POLITEKHNICHESKY INSTITUT. 8 Feb., 1966, No. 5422/66. Heading C1C. Polluted water, for example effluent from petroleum industry and machine building plants, is purified from hydrophobic substances having density less than or equal to that of the water by a process comprising causing the water to fall down free spillway 3 through air into chamber 4 and to flow from chamber 4 into the upper part of a settler in which the upper layers of water move substantially horizontally, the height through which the water falls down the spillway measured vertically upward from the surface of the water in the settler being greater than the depth of water in the settler, and floating substances being removed from the settler at a point remote from that at which the water flows into the settler, for example by means of rotating drum 7 and knife 8. Shield 6 may be raised or lowered to control the depth of the stream flowing into the settler from chamber 4. In the embodiment of Fig. 5, the water flows from spillway 3 into U-tube 16 and pressurized gas such as air, oxygen, ozone, carbon dioxide is introduced through pipe 20. Floating substances are directed by rakes 17 to the removal devices (Fig. 6, not shown). The lower part of the layer of floating substances may be recycled to spillway 3.
Patent GB-1244142-A (GB)
Title: A rotary mechanical seal
IPC: F16J15/34
Filed: 1970-02-04
Abstract: 1,244,142. Rotary shaft seals. CRANE PACKING CO. 4 Feb., 1970 [17 Feb., 1969], No. 5441/70. Heading F2B. A vertically disposed rotary shaft 11 is sealed where it extends through an opening 12 in a pressurized housing 10 by means comprising a rotary mechanical seal 29 and a supply of lubricant for the seal comprising upper and lower reservoirs 50 and 52 located respectively above and below the seal contact faces, the bottoms of the reservoirs being interconnected and the top of the lower reservoir 52 communicating with the interior of the housing 10. The seal 29 is housed with radial clearance in a recess 17 in a casting 13 secured to the housing 10 and comprises a rotatable sealing washer 34 which is slidably mounted on a sleeve 36 secured to the shaft 11 and urged by springs 49 into facial sealing contact with a stationary seating washer 30 sealed to an end plate 19 by an 0-ring 31. An annular space 16 is provided between the shaft and the casting 13 so that the lubricant is pressurized by the fluid in the housing 10. A filler plug 54 is fitted in the plate 19 and the washer 30 forms with the plate 19 and sleeve 36, a chamber 58 in which oil leakage past the contact faces 32, 33 of the seal is collected and drained through a tube 60 to a measuring vessel 61.
Patent GB-336192-A (GB)
IPC: A45D20/10
Filed: 1930-02-19
Abstract: 336,192. Siemens - Schuckertwerke Akt.-Ges. Feb. 21, 1929, [Convention date]. Pumping-machines and fan apparatus. - An electric portable hot air blower with its motor 3 arranged in the handle 4 is air cooled by the passage of air from additional holes 10 through an annular space between the motor and handle. The motor is secured in the handle by ribs 8 on the inside of the handle or by arms on the motor. The motor is controlled by a rotary switch 5.
Patent GB-496286-A (GB)
Title: Improvements in and relating to elevator cars
IPC: B66B11/02
Filed: 1937-02-25
Abstract: 496,286. Lift cages. EXPRESS LIFT CO., Ltd., and DIXIE, W. A. Feb. 25, 1937, No. 5696. [Class 78 (iii)] The top and bottom frames of a lift cage are united solely by sheet metal panels which form the walls of the cage. If, however, two adjacent sides are open, a pillar connects the top and bottom frames at the comer. As shown the top frame comprises channel section side members 1 united by cross girders 2 to which the suspension ropes are attached, and carrying a sheet metal roof 3. The bottom frame is constructed in a similar manner. Sheet steel panels 8 connect the two frames, and have outwardly directed flanges 9 by which they are joined together and strengthened. The various parts are secured together by bolts, rivets, or welding. The emergency stopping-gear is mounted on the bottom frame which consequently takes the stopping stresses.
Patent GB-344639-A (GB)
Title: Improvements in and relating to cases for watches
IPC: A45C11/10
Filed: 1930-02-20
Abstract: 344,639. Watches. NICOLET, G., (trading as STAUFFER, SON & CO.), 13, Charterhouse Street, London. Feb. 20, 1930, No. 5719. [Class 139.] Watch cases.-A watch, removably mounted in an outer casing 1, 2, is held on the lid which is formed in two parts 2, 6 hinged together at 7 and slidable in grooves 3 in the case 1. When opened the lid may be folded back to the position of Fig. 6. One loop of a bracelet watch is inserted through slots 9 and behind tongue 18 and the other loop is suitably held at 19. A spring 10, held at 11, 12 retains the lid closed. Pieces 13 on this spring meeting the hinge 7 and then a lug 14 on part 6 prevent complete withdrawal of the lid. A channel 15 is provided in part 1 for attaching a chain.
Patent GB-449203-A (GB)
Title: Improvements in or relating to the manufacture or treatment of plastic materials
IPC: B29C71/00
Filed: 1935-02-25
Abstract: Plastic material, such as that having a basis of cellulose acetate or nitrate, ethyl cellulose, benzyl cellulose, or other cellulose derivative, containing volatile organic solvent, is seasoned by a current of air applied at temperatures which increase as seasoning proceeds, whereby the solvent is removed. The current of air may be applied in a number of distinct stages. The temperatures employed and the duration of each stage should preferably be such that the volatile solvent is removed at a substantially constant rate during each stage.  The treatment prevents the formation of a hardened outer surface until most of the solvent from the interior has been removed. Seasoning may be effected in the case of films or sheets by placing the material between blotter pads in driers through which air at the desired temperature is circulated.  The material may be cast, stuffed, and rolled laminated-glass stock, stuffed and rolled slabs, moulded articles, rods, and other shaped articles.  The process may be applied to films and sheets obtained by casting, or by cutting from blocks, and to slabs taken from malaxating rollers.  The plastic material may contain plasticizers, dyes, lakes, pigments, filling-materials, fire retardants, and lubricants.ALSO:Plastic material such as that having a basis of cellulose acetate or nitrate, ethyl cellulose, benzyl cellulose, or other cellulose derivative, is seasoned by a current of air applied at temperatures which increase as seasoning proceeds, in order to remove volatile organic solvent. The current of air may be applied in a number of distinct stages. The temperature and duration of each stage should preferably be such that the volatile p  solvent is removed at a constant rate during each stage.  The treatment prevents premature formation of a hardened outer surface.  The material may be placed between blotter pads in driers through which air at the desired temperature is circulated. The material treated may be cast, stuffed, and rolled laminated-glass stock, stuffed and rolled slabs, moulded articles, rods, and other shaped articles.  The process may be applied to films and sheets obtained by casting or by cutting from blocks, and to slabs taken from malaxating rolls.  The plastic material may contain plasticizers, dyes, pigments, filling-materials, fire retardants, and lubricants.
Patent GB-549441-A (GB)
Title: Discharge nozzle for carbon dioxide fire extinguishing apparatus
IPC: A62C99/00
Filed: 1942-05-04
Abstract: 549,441. Nozzles. CARDOX (GREAT BRITAIN), Ltd. (Cardox Corporation). May 4, 1942, No. 5981. [Class 69 (iii)] A nozzle for discharging liquid carbon dioxide for fire extinguishing comprises a head C having a co-axially arranged inlet passage 19, Fig. 3, and discharge chamber 22 separated by a wall 23 normal to their common axis provided with a plurality of radial ducts 24 connecting the inlet to the discharge chamber. The ducts 24 are of tapered bore and have outlets divided radially towards the centre of the chamber 22 in which is mounted a bellshaped diffuser 27. A conical boss 20 guides the liquid into the ducts 24. Liquid carbon dioxide impinging in the diffuser 27 forms a mist of mixed gas and solid. The nozzle is screwed into the casing B, Fig. 1, of a regulating cock screwed on a play pipe A formed of a lightweight metal tube 5 covered with a winding of cord 6 and covered with rubber 7 or other non-frosting insulating material. The valve casing may be provided with a safety vent 16 containing a rupturable disc 15.
Patent GB-384857-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J17/06
Filed: 1932-02-29
Abstract: 384,857. Discharge lamps. GENERAL, ELECTRIC CO., Ltd., Magnet House, Kings. way, London.-(Assignees of Patent-Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Feb. 29, 1932, No. 6073. Convention date, March 14, 1931. [Class 39 (i).] In a positive-column lamp hav ing cold electrodes of sheet metal a hollow electrode coated inside with an electron-emitting sub stance has one or more aperture, which restrict the outflow of the active vapours into the lamp. A cylindrical electrode may have its edge inturned, or may be constricted about its middle, or may be shaped as shown in the Figure with apertures i. The apertures may be arranged so that the active vapours wash the electron-emitting electrode surfaces.
Patent GB-872856-A (GB)
Title: Apparatus for extracting oil from nuts
IPC: C11B1/10
Filed: 1960-02-22
Abstract: <PICT:0872856/III/1> An apparatus for extracting oil from nuts, e.g. cashew nuts, comprises heating means within a container adapted to be at least partially filled with nut oil, a conveyer to carry nuts to the container, and a conveyer to carry treated nuts from the container.  As shown, a preferred embodiment comprises a casing within which runs an endless chain conveyor 22 driven by sprocket 23 which passes over idling sprockets 24-28 in direction B.  Each of the links of the chain 22 carries a rigid separator plate 29 which passes through channels 31 and 34 provided for the downward and upward flight of the conveyer with little clearance.  Liquid, suitably cashew nut oil, is contained in the lower portion 7 of the casing up to level A and is heated by furnace gases passing through pipes 8 to chimney 10.  Nuts from conveyer 41 are passed by shoot 40 on to the chain conveyer 28 as it descends through channel 31, and when point C is reached the nuts drop on to perforated screen 45.  The oil in region 11 is kept in motion in direction B by means of reciprocating piston 14 and the non-return valves 17 and 18, and the movement of the oil carries the nuts along until the nuts reach region D where they are once more caught up by the conveyer and carried up channel 34, the oil contained in the nuts having passed into the bulk of the hot oil between points C and D.  The oil is drained off periodically. As the nuts pass up channel 34 any oil carried along drains back into the lower portion.  When the nuts issue from the upper horizontal portion of channel 34 they are deposited on outwardly sloping plates 35 which pass them through openings in the side of the casing into a hopper (not shown).  Valve 50 controls the exit of hot gases and plate 37 ensures that such gases can only escape through channels 31 and 34, thereby preventing oxidation of the bulk of hot oil in the lower part of the casing.
Patent GB-997603-A (GB)
Title: Diagnostic compositions for ph determination
IPC: G01N33/84
Filed: 1963-02-14
Abstract: A diagnostic composition for determining the hydrogen ion concentration of biological fluids comprises an indicator or combination of indicators which exhibit a colour change upon being subjected to a change in hydrogen ion concentration, an alkali metal carrageenate, e.g. the sodium salt thereof, polyvinyl pyrrolidone and a polyalkylene glycol, e.g. polypropylene or polybutylene but preferably polyethylene glycol.  A preferred indicator composition consists of 1 part Methyl Red and 20 parts Bromthymol Blue.  The diagnostic composition may be impregnated on a bibulous carrier, e.g. paper, by dissolving the ingredients in aqueous alcohol and drying the bibulous material in an oven at 80-150  DEG C. for 5-10 mins.  A wetting agent may be used in making the solution.  A preferred diagnostic composition comprises Methyl Red, Bromthymol Blue, refined carrageen extract, polyvinyl pyrrolidone and polyethylene glycol, (m.w. 4,500), impregnated on a bibulous carrier.
Patent GB-215293-A (GB)
Title: Improvements in endless tracks for vehicles
IPC: B62D55/28
Filed: 1923-02-05
Abstract: 215,293. Lamb, F. B. Feb. 5, 1923 Endless-track vehicles.- The Figures show two forms of connections for the links of endless-track shoes, the connection being central and permitting of limited universal movement. In Fig. 1 a pin c connecting the interengaging ends of adjacent links d, g is fitted with a bush b having a spherical outer surface engaging a split housing a secured in the link g. The joint is closed by leather washers e secured by spring rings f. In Fig. 2, the male end of the link is formed in two parts g, h each adapted to engage the spherical surface of the bush b, the joint being sealed by packing-rings j.
Patent GB-525641-A (GB)
Title: Improvements in apparatus for maturing paper
IPC: D21G7/00
Filed: 1939-02-24
Abstract: 525,641. Conditioning paper. STURTEVANT ENGINEERING CO., Ltd., and STEVENS, M. F. Feb. 24, 1939, No. 6173.. [Class 96] [Also in Group IV] Paper 6 travelling vertically over rollers or spar drums 8, 9 and supported by tapes 11, 12 is conditioned by air from ducts 13, 14 extending transversely of the paper web and disposed, e.g., as illustrated so that substantially the whole length of paper under treatment is exposed to humid air. The ducts are preferably. free from external projections to minimize damage if the web breaks, and preferably have an internal tapered baffle. to maintain constant air-speed along their length. Air is supplied through a humidifier 15, and heater 16 and fan 17 to a main trunk 18 with branches 19, part of the air being withdrawn at 20, and recirculated. The ducts may be oval in cross section and formed from bent sheets spaced with distance-pieces to form jets, or may be .tubular with rows of short tubular openings.
Patent GB-192304-A (GB)
Title: Improvements in safety razor
IPC: B26B21/40
Filed: 1922-03-02
Abstract: 192,304. McAuliffe, J. W. March 2, 1922. Stropping - apparatus.-A stropping-device specially adapted for safety razors, in which the blade 7 is clamped near the middle of its width so as to leave a wide margin on either side, and the guard plate and top plate can be shifted to positions distant from the blade, comprises a pair of mutilated stropping-rollers 41 mcunted in a frame or box 40 and rotated by rack-and-pinion mechanism. The movement of the rack is limited so that its travel in either direction corresponds to one rotation of the rollers.
Patent GB-1254981-A (GB)
Title: Improvements in or relating to silicon substrates
Inventor: WORLEDGE PETER LOUIS
IPC: H01L21/033
Filed: 1970-02-10
Abstract: 1,254,981. Etching. MARCONI CO. Ltd. 17 Sept., 1970 [10 Feb., 1970], No. 6256/70. Heading B6J. A method of etching a silicon substrate comprises the steps of producing a mask of metallic material, e.g. a layer of gold on a layer of chromium on the substrate surface, the mask being resistant to attack by the silicon etchant, e.g. a mixture of hydrofluoric and nitric acids, which is applied to etch away the areas of substrate not covered by the mask. A stainless steel member the same size and shape as the area of substrate to be etched away may be placed on the substrate surface previously polished by lapping or by etching with a mixture of hydrofluoric, acetic and nitric acids, the two metallic layers being vacuum deposited on to the substrate and the stainless steel member being removed before etching takes place. Alternatively, the two layers are deposited on to the entire substrate surface, .the outer gold layer then being coated with photo resist material which is selectively exposed to light and removed, the areas of gold layer thus exposed being etched away with an iodine, potassium iodide solution and the chromium with a ceric sulphate, nitric acid solution to expose the substrate which is etched as before.
Patent GB-681667-A (GB)
Title: Improvements in or relating to rail vehicle undercarriages
IPC: B61F5/16
Filed: 1951-03-16
Abstract: 681,667. Rail vehicle undercarriages. SCHWEIZERISCHE LOKOMOTIV - UND MASCHINENFABRIK. March 16, 1951 [March 29, 1950], No. 6337/51. Class 103 (vi). The holster 6 of an axle-truck is provided with a well 6a forming an oil bath for the centre pivot bearing surfaces lo, 7a, swing hanger bearing surfaces 16, 17 (Fig. 1), and the abutment surfaces 12 (Fig. 2), which take longitudinal thrusts. The well is closed by a cover 19 slidably mounted under the flange 22 to allow relative movement between the centre pivot and the bogie frame. The central part of the bolster forming the well is conveniently a casting welded subsequently to the IÀbeams 27. When used with a three-axle bogie the two centre transverse ties are conveniently formed as a single unit with the well.
Patent GB-1122914-A (GB)
Title: Improvements in or relating to plate type heat transfer apparatus
Inventor: USHER JOHN DENNIS
IPC: F28F3/08
Filed: 1966-02-14
Abstract: 1,122,914. Plate evaporators. A. P. V. CO. Ltd. 27 Jan., 1967 [14 Feb., 1966], No. 6452/66. Heading B1B. [Also in Division F4] In a plate evaporator of the type disclosed in Specification 859,876, comprising a plurality of plates with interposed gaskets R arranged to define flow paths for both steam, and liquid concentrate and vapour, the concentrate and vapour passage V comprises two parts, the upper part being integral with the heat transfer surface S of each plate and the lower part being an open rectangular duct D common to all the plates. Sealing of the two parts is effected by clamping together the flanged portions B and L. A pack of such plates are mounted vertically in a frame comprising a head (W, fig. 2), a follower (Y), and an end support (Z), the duct D extending between the head and the follower. In a modification, see fig. 5, the vapour passage V has a semicircular cross section, the duct D being sealingly attached to the plates in recesses 8 by inflatable longitudinally extending hollow rubber or plastic tubes 7. The duct D extends between the head (W, fig. 4) and the end support (Z) and has a central section sloping towards the head (W), the follower (Y) being provided with retractable sealing means (fig. 7) to seal the follower against the duct D. The steam port X may additionally or alternatively comprise two sections as described above for the vapour passage V.
Patent GB-1535233-A (GB)
Title: Method for preventing aerobic decomposition processes in fermentated fodder
IPC: A23K30/15
Filed: 1976-02-19
Abstract: 1535233 Prevention of decomposition of silage T BECK and F GROSS 19 Feb 1976 [19 Feb 1975] 06567/76 Heading A2B Aerobic decomposition processes in fermented fodder are prevented by the addition to the fodder of benzoic acid or its salts in an amount of 100 to 1000 ppm, formates in an amount of 500 to 3000 ppm and alkali metal salts of sulphurous acid in an amount of 75 to 750 ppm either individually or in admixture. The preferred fodder is maize and conventional ensilaging aids may also be present.
Patent GB-558186-A (GB)
Title: Improvements in or relating to a printing plate and a method of manufacturing the same
IPC: B41N1/12
Filed: 1942-08-15
Abstract: 558,186. Printing surfaces. FILLMORE, S. W. Aug. 15, 1942, No. 6594. Drawings to Specification. [Class 100 (ii)] A printing plate which may be used in the manner of a stereotype or backed electrotype comprises two layers, an upper layer of a plastic and a base layer, the amount of plastic being only sufficient to receive the impression and to act as a key by integral parts of the plastic extending into apertures, recesses, ports or other spaces in the base. The base may consist of metal or alloy or hard porous or sponge rubber and the plastic may be a thermo plastic, or a thermosetting resin, or a natural or synthetic rubber, or cellulose acetate or other cellulose derivative.
Patent GB-797799-A (GB)
Title: Improvements in and relating to wall structures formed by tubular elements
IPC: F22G3/00
Filed: 1957-02-27
Abstract: 797,799. Furnace walls. HUET, A. Feb. 27, 1957 [March 8, 1956], No. 6635/57. Class 51(1). In a wall formed of parallel tubes, the tubes or alternate tubes are formed with longitudinal ridges which are welded to the ridges on adjacent tubes or to the walls of adjacent tubes. Ridges g, h, Fig. 5, are formed at diametricallyopposed sides of a tube by compressing a tube of larger diameter than finally required and the ridges of adjacent tubes are welded to form a wall, Fig. 6, or a ridged tube is welded to either side of an unridged tube, Fig. 7. The tubes may be ridged at one side only, and the ridges may be chamfered or of asymmetrical profile. The upper ends of adjacent tubes may be connected to a header r, Fig. 9, by Y-pieces o, the spaces between adjacent Y-pieces being filled by a plate s welded to ridges formed on the Y-pieces. A tube with three ridges may be used to form a T-section wall, Fig. 8.