baber/WOPTO huggingface dataset:
Patent GB-1191157-A (GB)
Title: Electrophotographic Copying
IPC: G03G17/00
Filed: 1967-07-17
Abstract: 1,191,157. Electro-photographic copying processes. INTERNATIONAL BUSINESS MACHINES CORP. July 17, 1967 [July 18, 1966], No.32708/67 Heading G2H. An electro-photographic copy process in which a latent electrostatic image is formed on a copy member from a conductivity image in a photoconductive member exhibiting photo-conductivity by applying a constant D.C. voltage across a small air gap between the photo-conductive member and copy member, includes a recovery step of charging the photo-conductive member after each image formation. The photo-conductive member is charged with the same polarity as the constant D. C. voltage and of such magnitude that the resulting potential at the surface of the photo-conductive member bounding the air gap is greater than V-V 1  c where V ic is the maximum potential which if applied in place of V does not cause image formation on a further copy member. In one example (Example 1) a photo-conductive film was exposed to a 40 watt incandescent lamp at 12 inches for two seconds and then placed alongside a copy member of dielectric paper and fed through a charging station with a positive polarity of 600 volts applied to the back of the photo-conductive film. Positive charge areas were formed on the copy member corresponding to exposed areas of the film and made visible by application of negative lower particles. The film was then positively charged with a corona discharge at 7000 volts, exposed to a second image and the charge formation and development steps on the dielectric were repeated. The image formed by the first exposure was not visible on the dielectric paper.
Patent GB-1037172-A (GB)
Title: Improvements relating to wall or ceiling constructions
Inventor: BLUNDELL VICTOR CHARLES
IPC: E04F13/08
Filed: 1961-09-12
Abstract: 1,037,172. Suspended ceilings; stud and socket fastenings; clips. PHOENIX TIMBER CO. Ltd. Sept. 5, 1962 [Sept. 12, 1961], No. 32744/61. Headings E1V and E2B. Rectangular hardboard panels 11, forming a false ceiling, are clipped into apertures 10, 9 formed respectively in the flanges of inverted T-sectioned bearer members 4 and support members 5. Apertured plates 16 which may be of fibrous or plastic material and stapled to the panels, or of metal provided with a serrated or spiked edges for attachment to the panels, contain metal spring clips 12 in their apertures for attachment to the bearer or support members. The flanges 7 of the support members 5 may be curtailed adjacent the bearer members flanges, with the webs 6 continuing over said latter flanges, as shown, or they may run under said latter flanges, which are received in slots in said webs 6.
Patent GB-910613-A (GB)
Title: Process and apparatus for the production of unsaturated hydrocarbons from liquid hydrocarbons
Inventor: STEINHOFER ADOLF
IPC: C07C4/04
Filed: 1959-09-28
Abstract: Unsaturated hydrocarbons are produced by the pyrolysis of liquid hydrocarbons by spreading out the liquid hydrocarbon on the inner wall of a cylindrical or part conical chamber by means of a propellant gas introduced tangentially at 50-300 metres/sec. and at a temperature which does not effect appreciable cracking and passing a hot gas axially through the chamber cocurrently with the liquid hydrocarbon feed to effect pyrolysis.  The liquid hydrocarbon may be a gasoline boiling in the range 80-220 DEG C., a middle oil boiling in the range 90-350 DEG C. or a higher boiling petroleum fraction and is introduced tangentially or radially. The propellant gas may be steam at 200-400 DEG C. mixed, if desired, with nitrogen or carbon dioxide, or hydrogen or carbon monoxide together with oxygen to provide the desired temperature, in amounts of 10-80% by volume of the steam, the total gas amounting to 0.2-1 kg. per kg. of hydrocarbon.  The cracking gas may be hot steam, nitrogen or carbon dioxide or a combustion product at 800-1500 DEG C.  The pressure may be 2-30 excess atmospheres.  The product which may contain ethylene, propylene or acetylene is quenched with water or by decompression.
Patent GB-176071-A (GB)
Title: Improvements in and connected with the construction of ship davits
IPC: B63B23/04
Filed: 1920-11-22
Abstract: 176,071. Clay, J. R., and Harrison, J. S. V. Nov. 22, 1920. Davits.-In an horizontally pivoted davit 3 having a rack 5 at its lower end gearing with a worm 7, the worm and rack are disposed in a casing containing a liquid in which the gear works. The davit arm passes through the neck 11 of the casing and is fitted with an arcuate shield 10 which covers completely the opening in the neck in all positions of the davit. A liquidtight housing 18 attached to the main casing and which may be in free communication therewith, carries a bevel-gear 19 for operating the worm 7.
Patent GB-338334-A (GB)
Title: Improvements in or relating to light filters for increasing and producing colour contrasts
IPC: F21V9/00
Filed: 1929-10-29
Abstract: 338,334. Deutsche Gasgl³hlicht- Auer-Ges., (Assignees of Weidert, F.). Dec. 15, 1928, [Convention date]. Colour filters.-A light filter for accentuating colour contrasts is made of glass that is coloured with neodymium oxide. Other colouring materials may be incorporated with the glass to securethe desired optical effect. For example, cerium oxide may be added to absorb ultraviolet rays, or chromium oxide or praseodymium oxide may be used to make objects coloured green appear more pronounced. The glass may be used for spectacle lenses, for obtaining special illuminating effects, or for separating narrow bands of the spectrum.
Patent GB-457953-A (GB)
Title: An improved method of producing decorative designs on glass
IPC: C03B23/025
Filed: 1935-11-27
Abstract: 457,953. Glass manufacture. CORSAN, J. C., and LONDON SAND BLAST DECORATIVE GLASS WORKS, Ltd., Seager Place, Burdett Road, Bow, London. Nov. 27, 1935, No. 32880. Drawings to Specification. [Class 56] A method of producing decorative designs on glass consists in laying the glass on a pattern-forming element or a collocation of such elements, and applying sufficient heat to soften the glass so that impressions are formed on its surface corresponding to the patternforming elements, the glass dropping under the force of gravity only. The elements may consist of metal bars or strips placed on edge on the bed of a kiln and arranged in the desired pattern. A sheet of glass is placed on the elements and is then heated until it softens and drops by gravity into the spaces between the bars or strips. Metal tubes may be provided to allow air to escape from under the glass. Moulds may be used, also, in place of the metal bars or strips.
Patent GB-429035-A (GB)
Title: Improvements in classifiers
IPC: B07B7/086
Filed: 1933-11-24
Abstract: 429,035. Pneumatic separating. CUPPY, H. A., Lititz, Pennsylvania, U.S.A. Nov. 24, 1933, No. 32903. [Classes 23 and 117] A classifier for sugar, cocoa, &c. comprises a vertical pipe 5, Fig. 1, through which the material is carried in a current of air and from which it is discharged laterally through tangential slots 7 into a frusto-conical part 10 of a vertical casing 1. An annular channel 12 at the bottom of the casing 10 directs a current of air upwardly through the dispersed material and carries off the fines allowing the coarser grade to drop from the bottom of the casing. Preferably the casing is provided at the top with an inverted conical part 4 which carries a baffle ring 19 disposed over a funnel 17 and surrounding the air outlet pipe 20 leading to a fan 22. Material deposited in the funnel 17 is led by the vertical pipe 16 back to the original point of discharge, the top end of the pipe 5 being provided with a spreader cone 8. The air exhausted from the separator by the fan 22 is passed first through a cyclone 2 and is finally cleaned by being discharged tangentially into an annular chamber 28, Fig. 4, having peripheral slots 33 leading to vertical tubes 32 which collect some of the material. The other material passes over the edge 31 of the annular bottom of the chamber into the filter tubes 34 through which some of the air is dissipated. The rest of the exhaust air may be drawn off by the fan 37 and returned through the pipes 38, 39 to the air-supply pipe 13 and to the mill for feeding the material to the pipe 5.
Patent GB-708240-A (GB)
Title: Improvements in watering cans
IPC: A01G25/14
Filed: 1952-12-29
Abstract: 708,240. Spouts for hollow-ware. WALKER, W. J. Dec. 29, 1952 [Jan. 11, 19521, No. 32907/52. Class 66 A watering can 13 is provided with an upwardly inclined spout 10 attached to the can at the bottom thereof and increasing in crosssectional area as the upper outlet end is approached. The outlet end is closed by a perforated spray producing plate 15. The spout may either increase regularly in cross-seetibn or may be trumpet shaped and the spray plate may be fixed in the position shown dotted to give a downwardly directed spray or at an angle to the spout as viewed in plan, Fig. 2 (not shown), to give a spray directed to right or left of the spout. The main handle 16 of the can may be made integrally with the side handle 17 and the spout stay 18.
Patent GB-761997-A (GB)
Title: Improvements in or relating to the manufacture of sulphurised terpenes
Inventor: JENSEN HANS CHRISTIAN HENRY
IPC: C10M135/04
Filed: 1953-11-27
Abstract: Sulphurized terpenes are prepared by dissolving a terpenic hydrocarbon in a lubricating oil, heating the solution with elemental sulphur in the presence of an added sulphurization catalyst until sulphurization is substantially complete and then further heating the solution of sulphurized product at sulphurization temperatures with an additional quantity of an unsulphurized terpenic hydrocarbon.  The product of the sulphurization may be steam-distilled before and/or after the treatment with additional terpenic hydrocarbon.  The products are lubricating oil additives having reduced corrosivity towards copper.  In examples (1) a mixture of commercial dipentene, sulphur, mercaptobenzthiazole, diphenyl guanidine in a refined mineral lubricating oil is heated at 100-175 DEG C. until evolution of H2S has ceased whereupon the product is steam distilled to remove unchanged hydrocarbons and refluxed with additional dipentene and again steam distilled; (2) as in (1) the first steam distillation being omitted.  Other terpenic hydrocarbons specified are alphapinene, camphene and carene.  Specifications 688,293, 703,631, 750,094 and 761,987 are referred to.ALSO:Lubricating oil additives are prepared by dissolving a terpenic hydrocarbon in a lubricating oil, preferably a mineral oil, heating the solution with elemental sulphur in the presence of an added sulphurization catalyst until sulphurization is substantially complete and then further heating the solution with an additional quantity of unsulphurized terpenic hydrocarbon at sulphurization temperature.  The product of the sulphurization may be steam-distilled before and/or after the treatment with additional terpenic hydrocarbon.  Dipentene, d-pinene, camphene and carene are specified starting materials.  Examples are given of the preparation of mineral lubricating oil concentrates of sulphurized dipentene.  Specifications 688,293, 703,631, 750,094 and 761,987 are referred to.
Patent GB-1425013-A (GB)
Title: Method of measuring the temperature of metal
IPC: G01K7/36
Filed: 1972-07-14
Abstract: 1425013 Electro-physical measurement-temperature BRITISH STEEL CORP 12 July 1973 [14 July 1972] 33118/72 Heading G1N The invention relates to the electromagnetic measurement of the temperature of hot metal, e.g. in a rolling mill by variation of its resistance to eddy currents. A sudden change is made in a unidirectional magnetic field and the rate of decay of the resulting eddy currents is sensed to estimate the resistance. DETECTING EDDY CURRENTS. As shown a field coil 16 for "magnetizing" the sample is pulse energized through a transistor switch 22 controlled by a squarewave oscillator 26. The eddy currents are sensed by the voltage induced in the coil during the "power off" periods. Any noise signals are also picked up in an adjacent coil 18 and subtracted from the induced voltage signal from coil 16 in a differential amplifier 28. MEASURING DECAY RATE. Clockpulses are counted while the signal decays past two thresholds. As shown the induced voltage is applied to two level detectors L1, L2, set for e.g. 5 volts and 1 volt. The output from L1 is inverted so that triple-coincidence-gate 40 is opened to energize the counter when the level drops below 5 volts until it reaches 1 volt. The enabling pulse for gate 40 is delayed slightly at 44, to avoid initial transients.  The counter is reset every 100 and drives a 7 decade display which may be arranged to read directly in temperature e.g. by adjusting the threshold levels.
Patent GB-464934-A (GB)
Title: Improvements relating to the de-frothing of foam baths
IPC: A47K5/16
Filed: 1935-12-02
Abstract: 464,934. Baths. JACKSON, J. Dec. 2, 1935, No. 33306. [Class 26] Apparatus for dispersing foam in foam baths of the type described in Specification 434,931, [Group XXI], comprises a spray-forming device in the form of a perforated tube h so mounted as to be capable of performing swinging movements about its axis so that jets of a liquid defrothing agent or deflocculating agent introduced into the pump circuit and emanating from the tube may be caused to sweep the bath from end to end. The tube may be operated by a handle m and the rim of the bath may have a shelf i with a weir for use in making foam in the manner described in Specification 463,284, [Group XXI].
Patent GB-1077683-A (GB)
Title: Improvements in or relating to the preparation of organic iodine compounds with therapeutic properties
IPC: C08G65/28
Filed: 1964-08-14
Abstract: The invention comprises an iodohydrin of a water-soluble tris-(polyoxyethylene ether) of castor oil complexed with an iodide and iodate of an alkali metal or alkaline earth metal which is prepared by reacting an alkali or alkaline earth metal hypoiodite with a water-soluble tris-(polyoxyethylene ether) of castor oil.  The products may be dissolved in water or urethane water.ALSO:The invention comprises an iodohydrin of a water-soluble tris(polyoxyethylene ether) of castor oil complexed with an iodide and iodate of an alkali metal or alkanine earth metal which is prepared by reaction of a watersoluble tris(polyoxyethylene ether) of castor oil with an alkali or alkaline earth metal hypoiodite.ALSO:Pharmaceutical preparations comprise an iodohydrin of a water-soluble tris(polyoxyethylene ether) of castor oil complexed with an alkali metal or alkaline earth metal iodide and iodate together with a pharmaceutically acceptable carrier and/or diluent. The preparations are anti-carcinogenic.
Patent GB-1384147-A (GB)
Title: Rotary fluid-flow meter
IPC: G01F1/08
Filed: 1972-07-17
Abstract: 1384147 Rotary fluid-flow meters ROCKWELL INTERNATIONAL CORP 17 July 1972 [15 July 1971] 33413/72 Heading F1F A flowmeter 18 is clamped on to a pipeline 10 so that its rotor assembly 14 extends through a pipeline opening 12 into the path of the fluid-flow. The rotor assembly is suspended from an indicator housing 54 by means of a sealing plate 52, the housing 16 of assembly 14 being rotatably adjustable about a vertical axis by set screws 66 which secure housing 16 to plate 52. Housing 16 has a transverse V shaped notch 64 therein, the notch being located in a semi cylindrical shroud 62 which is positioned 180 degrees about rotor assembly 14 upstream thereof. Thus by adjusting screws 66 the shroud can be adjusted so that the notch 64 presents a desired area of the rotor to fluid-flow, thus to calibrate the meter. The rotor, Fig. 11, comprises upper and lower rotor portions 68, 70, each comprising two semicylindrical blades 78, the blades of one portion being 90 degrees out of phase with those of the other. A cap member 40 is attached to upper rotor portion 68 by pin 42 and has a beaming surface 44 which is suspended on a ball 46 of shaft 30 attached to a bottom plate 34 of housing 16 so that the rotor is freely rotatable on bearings 38 on shaft 40. The meter is held in position by a U-bolt 24 which surrounds pipe 10, the ends projecting through attachments on a saddle member 22 integral with the register housing and being threaded to receive nut 26 for securing the flowmeter. A magnetic coupling between the rotor and register is also described, Fig. 14 (not shown). The materials used for the flowmeter may be selected from a variety of metals and plastics.
Patent GB-475701-A (GB)
Title: Improvements in heilmann combing machines
IPC: D01G19/14
Filed: 1936-12-07
Abstract: 475,701. Combing-machines. SACHSISCHE TEXTILMASCHINENFABRIK VORM. R. HARTMANN AKT.-GES. Dec. 7, 1936, No. 33496. Convention date, Feb. 13. [Class 120 (i)] In a Heilmann combing-machine in which the fibre tuft is held by nippers a, c, Fig. 1, during combing, the lower jaw c bears against a rigid transverse stay o so that the pressure is uniformly distributed over the entire width of the nippers. The upper surface p of the stay o may be curved, Fig. 2, to correspond to the deflection of the nippers, while alternatively spring-supported bolts q, Fig. 3, may be provided which are depressed until their heads bear against the stay o to provide the rigid support. The bolts q may be adjustable. The upper jaw a is movable about a pivot b and is actuated by cam discs f on the combing-cylinder shaft d through two pairs of interconnected links g, h, each link h being connected with the front end of the jaw a as near as possible to the nip r. The links g are mounted on pivots m adjustable in slots n and carry rollers k engaging the cams f.
Patent GB-999773-A (GB)
Title: Improvements in or relating to electric gas-filled incandescent lamps
IPC: H01K1/20
Filed: 1961-09-19
Abstract: 999,773. Electric incandescent lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 19, 1961 [Sept. 22, 1960], No. 33498/61. Heading H1F. In a gas-filled lamp comprising a tungsten filament 1 extending between lead-in wires 5 sealed in the bulb wall and which contains a small quantity of iodine, the connection and mechanical support of the ends of the filament to the lead-in wires is effected by a strip-like element 6 having a thermal conductivity such that in operation the ends of the filament are at a temperature of at least 900‹ C. and preferably at least 1200‹ C., each strip, at least on its exposed surfaces, consisting of a metal or alloy of which the amount in gram-atoms reacting per unit time with atomic iodine over the temperature range 300-1200‹ C. is at most one-fourth that of tungsten. Suitable material for the strips 6 or for coating their surfaces are metals of the platinum group and alloys thereof.
Patent GB-756306-A (GB)
Title: Improvements in or relating to devices for cooling heated sinter and like material of cake, agglomerate or granular form
IPC: F27D15/02
Filed: 1954-11-19
Abstract: 756,306. Cooling sintered material. KAISER STEEL CORPORATION. Nov. 19, 1954 [May 5, 1954], No. 33618/54. Class 51(2). Apparatus for cooling hot material in coke, agglomerate or granular form, particularly sinter discharged from sintering machines, comprises a rotary conical platform 1, fed with crushed sinter from a shoot 4 through a frustoconical hopper 21, supported by radial arms 24 carrying adjustable ploughs 30, 31 which guide the sinter onto an annular platform 16, and an endless conveyer 51 onto which a plough 50 directs cooled sinter from the platform 16. The platform 1 comprises truss members 8 extending radially from an upright shaft 6 and carrying a ring 9 and track 10, a wear-resisting deck 18 which may be covered by refractory material, the annular platform 16 which may also be covered by refractory material, and a conical deflecting cap 19 mounted on the shaft 6. The deck 18 is inclined at an angle which is substantially less than the angle of repose of the sinter. The track 10 seats on rollers 11 carried by three equalising beams 13 pivotally mounted on shafts 60 between bearing members 14. One of the rollers 11 is driven by a motor 66 through gear box 75, a belt drive, and flexible couplings 68 and 69. The angular positions of the ploughs 30, 31 may be adjusted manually by pinion and worm gearing 38. An L-shaped spreader 45 with a deflector plate 49 is mounted over the platform 16 near the discharge conveyer 51.
Patent GB-808101-A (GB)
Title: Process for obtaining pure trimethylolpropane
IPC: C07C29/86
Filed: 1955-11-23
Abstract: Pure trimethylolpropane is obtained from the aqueous reaction mixture obtained by alkaline condensation of butyraldehyde with formaldehyde, by treating the reaction mixture with a partially water-miscible solvent consisting of a monohydric aliphatic, cycloaliphatic or araliphatic alcohol containing 4-8 carbon atoms thus forming an aqueous phase and an organic phase, organic impurities going into the organic phase and the trimethylolpropane being distributed between the aqueous and organic phases.  If a minor amount of solvent is used the bulk of the trimethylolpropane remains in the aqueous phase and the organic impurities, together with a small amount of trimethylolpropane pass into the organic phase.  The bulk of the trimethylolpropane can be obtained from the aqueous solution by treating it with a greater quantity of the same or a different solvent as defined above.  The small quantity of trimethylol propane can be recovered from the organic phase by washing with water or with a trimethylolpropane-free raffinate obtained at the end of the working process.  If a major amount of the solvent is used the trimethylolpropane and organic impurities go into the organic phase. The bulk of the solvent is distilled off and the remaining extract is treated with water or a trimethylolpropane-free raffinate so that the trimethylol propane goes into the aqueous phase and the organic impurities remain behind in the solvent.  In the examples: (a) a solution of trimethylolpropane obtained by the alkaline condensation of butyraldehyde and formaldehyde is treated with a minor proportion of iso-octanol to give an extract layer containing small amounts of trimethylolpropane and iso-octanol and organic impurities and a raffinate containing the major part of the trimethylolpropane; the iso-octanol is reclaimed from the extract layer by distillation; the raffinate layer is treated with a large quantity of iso-octanol, thereby giving an extract containing the bulk of the trimethylolpropane, which is obtained by evaporating the extract solution and may be further purified by distillation; and (b) a solution of trimethylolpropane obtained by the alkaline condensation of butyraldehyde and formaldehyde is treated with a major quantity of cyclohexanol thus forming an extract layer containing most of the trimethylolpropane and cyclohexanol and a raffinate containing small amounts of trimethylolpropane and cyclohexanol; the extract layer is distilled to give cyclohexanol, trimethylolpropane and a residue containing a further quantity of trimethylolpropane; the residue is treated with a major portion of the raffinate from the first extraction and a minor amount of cyclohexanol is added; the raffinate so obtained may be treated with a further quantity of cyclohexanol or may be added to some fresh crude condensation solution.