baber/WOPTO huggingface dataset:
Patent GB-499302-A (GB)
Title: Improvement in iron desulphurization
IPC: C21C1/02
Filed: 1937-04-17
Abstract: In the desulphurization of molten pig iron, outside the blast furnace, with a basic slag in the presence of a reducing agent, the process is carried out with the positive exclusion of air and other oxidizing substances and under an oxygen activity substantially lower than that of the equilibrium of the reaction between carbon and oxygen to form carbon monoxide at the temperature of the pig iron and at atmospheric pressure.  The process may be carried out in the presence of carbon at a pressure less than atmospheric, e.g. below 380 or even 150 mm. or in the presence of a metallic reducing agent such aluminium, magnesium or calcium or in the presence of carbon during the initial stage and in the presence of the metallic agent at a subsequent stage.  The pig iron treated may have a sulphur content greater than 0,1 per cent and air may be excluded by a gas having an oxygen activity of the kind stated above.  The slag used may be an alkaline oxide slag such as a soda slag with or without additions of alkaline earth oxides or may contain more than 30 per cent of alkaline earth oxides and sufficient fluorspar to make it flow above 1200 DEG C.  The slag used may be blast furnace slag alone or mixed with 5-50 per cent of fluorspar and optionally also lime.  The process may be carried out in a vessel with a carbon or magnesite lining and having gas tight walls except a conduit for applying vacuum or reduced pressure, and the contents of the vessel may be agitated.  The iron may be treated with a slag which has been previously used and then treated with a slag which has not been previously used.  After desulphurization a protecting gas free from oxygen, carbon dioxide, carbon monoxide and water vapour, e.g. nitrogen, is admitted at about atmospheric pressure into the desulphurizing vessel and maintained there until the slag and iron have been separated.  The slag may be revivified as described in Specification 477,083.  The total weight of the slag used is not more than 8 per cent of the iron desulphurizer.
Patent GB-212447-A (GB)
Title: Improvements relating to the filling apertures and the closures therefor of vessels for containing and transporting volatile matters
IPC: B65D39/08
Filed: 1923-04-23
Abstract: 212,447. Manigart, G. April 23, 1923. Plug stoppers; screw; sealing-devices for stoppers; closure competed by molten material.-A stopper for vessels containing volatile substances such as naphtha, benzoline &c. comprises a ring a soldered to the vessel and containing a screwed stopper e bearing on a washer e. The outer end of the ring is hermetically sealed by a metal plate f soldered in a recess a'. A material such as resin or tallow is cast in the space between the stopper c and the plate f. Specification 6457/14 is referred to.
Patent GB-763496-A (GB)
Title: Hydrogen peroxide emulsions
Inventor: RICHMOND KENNETH WILLIAM
IPC: D06L4/17
Filed: 1954-04-15
Abstract: An additive to a dry-cleaning solvent for the purpose of brightening or bleaching fabrics comprises an emulsion of aqueous hydrogen peroxide in a liquid aromatic hydrocarbon, boiling within the range 100 DEG -300 DEG C., containing a non-ionic surface-active agent. The hydrocarbon should be free from unsaturated aliphatic groups and readily polymerizable compounds, and may be derived from a petroleum cracking and aromatization process or from coal tar.  A non-aromatic hydrocarbon, e.g. white spirit, may be present in an amount up to that of the aromatic hydrocarbon.  The surface-active agent may be a condensate of an alkylene oxide with a fatty alcohol or ester, e.g. condensates of oleyl, cetyl, or oleyl-cetyl alcohol with 5-7 molecules of ethylene oxide; polyethylene glycol 400 monostearate is also suitable Preferably the surface-active agent is first dissolved in the hydrocarbon and then the aqueous hydrogen peroxide added with agitation.ALSO:An emulsion of aqueous hydrogen peroxide in a liquid aromatic hydrocarbon boiling within the range 100 DEG -300 DEG C. contains a non-ionic surface active agent.  The hydrocarbon should be free from unsaturated aliphatic groups and readily polymerizable compounds, and may be derived from a petroleum cracking and aromatization process or from coal tar.  A non-aromatic hydrocarbon, e.g. white spirit, may be present in an amount up to that of the aromatic hydrocarbon.  The surface active agent may be a condensate of an alkylene oxide with a fatty alcohol or ester, e.g. condensates of oleyl, cetyl, or oleyl-cetyl alcohol with 5-7 molecules of ethylene oxide; polyethylene glycol 400 monostearate is also suitable.  Preferably the surface active agent is first dissolved in the hydrocarbon and then the aqueous hydrogen peroxide added with agitation.  The emulsions are used for addition to dry cleaning solvents for the purpose of brightening or bleaching fabrics.
Patent GB-723676-A (GB)
Title: Improvements in building construction
IPC: E04B1/61
Filed: 1952-05-05
Abstract: 723,676. Roofs, walls, &c. DOW-MAC (PRODUCTS), Ltd., DOWSETT, H. L., SPENCER, C. A., and VINCE, J. H. Aug. 5, 1953 [May 5, 1952], No. 11338/52. Class 20 (4). Slabs 1 of concrete, stone, or like material, are joined together and sealed in side-by-side abutting, or close, relation to form, e.g. a roof, or a wall, of a building, the edges of adjoining slabs, on one face, being rebated and filled with a waterproof plastic material 3 for the reception of the edges of a cover-strip 4 which is clamped to a backing strip 5, on the opposite face of the joint, by a bolt 6 and a nut 10. The strips 4, 5, are made of metal, plastic, or other suitable material, the backing strip 5, if desired, serving as a gutter to carry away any moisture that may leak through the joint. In a modification the plastic material is accommodated in grooves formed adjacent the edges of the slabs instead of in the rebates 3. Discs, or separate bridgepieces, may replace a backing strip 5. Specification 723,675 is referred to.
Patent GB-113560-A (GB)
IPC: C12G3/02
Abstract: 113,560. Hadley, A. June 16, 1917. Materials and compositions for making beverages.-A beverage, containing only a small proportion of alcohol, is prepared by boiling a solution of glucose or invert sugar with hops and yeast, and fermenting the solution with yeast.
Patent GB-676526-A (GB)
Title: Improvements in or relating to miners' safety lamps
Inventor: WOODHEAD DONALD WHITLEY
IPC: F21L23/00
Filed: 1949-04-29
Abstract: 676,526. Miners' safety lamps. MINISTER OF FUEL & POWER. July 27, 1950 [April 29, 1949], No. 11424/49. Classes 75(i) and 75(iv) A miner's safety lamp for use in detecting and measuring inflammable gas in the atmosphere comprises a fuel reservoir 2 from which fuel is delivered in gaseous form to a Bunsen burner comprising a gas jet 3 projecting into the lower end of a tube 6 having three or four air inlet orifices 8 adjacent the jet, and a perforated diaphragm or gauze 12 at the upper end of the tube 6 having its outer surface exposed to the atmosphere above which surface a flame may be maintained and observed. The tube 6 is enlarged to form a cylindrical mixing chamber 9 having a perforated lower wall 9a and an upper wall 9b mounting a refractory tube 11 of diameter larger than that of the tube 6. The gauze 12 is mounted on the tube 11 and has overlapping portions 12a for preheating the secondary air by conduction. The fuel reservoir 2 may contain gas only or both liquid and gas. When containing the latter the reservoir 2 is filled to a level 22 only and the top 2a of the reservoir is dished to prevent flow of fuel through the outlets 28 in the event of the lamp being inv,erted. A hollow flanged member 26 is clamped to the edge of an opening 27 in the top 2a by means of a flanged member 25 in which the fuel outlets 28 are provided. The member 26 contains a loose piston 23 which, when the fuel container is detached from the lamp, is pressed by a spring 32 to close an opening 26b in the member 26, but when the fuel container is in position the depending end of a plug 34 depresses the piston 23 and allows gaseous fuel to pass through V-shaped notches 25 to bores 36, 37 and thence through an aperture 39 in a tube 38 to a chamber 1b beneath a diaphragm 18. The latter is pressed downwardly by means of a spring 21 the compression of which may be varied by rotating a plug 7. The aperture 39 in the tube 38 may be closed by a plug 40 by the rocking of a lever 41 having an arm 41b supported by a pin 46 in a stirrup 45 secured to the diaphragm 18. The fuel flow is commenced by screwing down the rotary plug 7 to allow the lever 41 to rock anti-clockwise to withdraw the plug from the aperture 39, and the pressure within the chamber 1b, during the subsequent operation of the lamp, is maintained approximately constant at a value determined by the setting of the rotary plug 7, the diaphragm 18 being actuated on an increase of pressure beyond said value to raise the arm 41b and close the aperture 39. In the event of the lamp being inverted a ball 49 contained in a tube 48 falls against the arm 41b to shut off the fuel supply through the aperture 39. Specifications 656,375 and 656,823 are referred to. A gauge may be incorporated in the lamp for determining the height of the testing flame and of a surrounding flame cap. According to the Provisional Specification such gauge may be of stepped formation.
Patent GB-711150-A (GB)
Title: Improvements in or relating to adhesives
Inventor: ROSS JOHN ALEXANDER
IPC: C09J161/24
Filed: 1951-05-16
Abstract: An adhesive for bonding the components of plywood or other composite structures consists of an aqueous urea-formaldehyde resin and, as extender, one or more tannins containing phlobatannin.  Tannins specified are gambier, quebracho, mimosa, avaram and myrtan.  Known extenders, e.g. wheat flour and walnut shell flour, and hardening agents, e.g. ammonium sulphate, may be added.  The tannin, in the form of a powder or aqueous solution, may be added to the resin or to the resin and hardening agent shortly before use, or the tannin may be added to the hardening agent and the resulting mixture added to the resin.  Examples and comparative tests of other adhesives are given.
Patent GB-358959-A (GB)
Title: Improvements in and relating to the moistening of yarn and other textile materials
IPC: D06B1/02
Filed: 1930-04-11
Abstract: Yarn and other textile mateials are moistened simultaneously from above and below without the yarn bodies being turned over by placing them on a permeable belt above and below which are disposed spraying or other moistening devices.
Patent GB-740126-A (GB)
Title: Improved apparatus for use in classifying or both classifying and drying loose material
IPC: B07B4/02
Filed: 1954-04-21
Abstract: 740,126. Sifting-apparatus. TOPP, H. J. B. April 21, 1954, No. 11566/54. Class 117. Material to be classified is fed from a hopper 10, Fig. 1 onto a rotating disc 14 from the edge of which it spills onto a rotating screen 22. A fixed spider 11 supports a cage 15, comprising rings 13, over the disc and may also carry baffles 25, 26, Fig. 2, to facilitate the movement of material on the edge of the disc 14. The disc 14 is carried by arms 16 from a container 18 which carries the screen 22. Conduits 20, 24 receive the classified material, and radial blades 23, Fig. 3, rotating with the container 18 and screen 22 urge the fines into the conduit 24. The inner surface of the screen may have ribs. A drying wind may be injected at 24 to issue at 5. In the modification of Fig. 5, the rotating screen 48 is inverted and the classified materials are taken from ducts 45, 46. A brush 51 bears on the screen for cleaning, and the pressure exerted by the brush may be adjustable, e.g. as by a counterweight. The brush may be rotated about its axis by an electric motor, Fig. 9 (not shown). Several such brushes may be used. In Fig. 10, the shaft 36 carrying the screen and disc is supported in a bearing 63 which is resiliently supported from a base-plate 29. The screen-disc assembly may additionally be supported against lateral displacement as shown in Fig. 11; a spider 68 extending from the disc carries rollers 69 which run on a rim 70 of the stationary casing. To allow adjustment of the vertical position of the rotating disc and screen, each roller 69, Fig. 13, may have a bearing 72 eccentrically mounted on the spider, so that by loosening nut 73a the bearing may be rotated to raise or lower roller 69. In Fig. 15, the casing 30 rotates with the screen 48, a rim 74 bearing on fixed rollers 75. By corrugating the under surface of rim 74, Fig. 15, or the rim 70, Fig. 11, the screen may be given a vibrating movement while rotating. The lower portion of the feed tube 33, Fig, 5, 11 may have an adjustable skirt 78, Fig. 6, to vary the gap between the feed tube and the rotating disc 35. A plurality of screens, each feeding a different channel, may be employed.
Patent GB-1122166-A (GB)
Title: Ethynyl indanols and process for their manufacture
IPC: C07C35/32
Filed: 1967-03-13
Abstract: Ethynyl indanols of the formula <FORM:1122166/C2/1> wherein R1 is a hydrogen atom or a lower alkyl group containing from 1 to 4 carbon atoms and R2 is a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms, a phenyl group or a lower alkoxy-substituted phenyl group wherein any alkoxy groups contain from 1 to 4 carbon atoms, which are novel with the exception of the ethynyl indanol of the above formula, wherein R1 and R2 are both hydrogen atoms, are prepared by reaction of an indanone of the formula <FORM:1122166/C2/2> with a Grignard reagent of the formula CH­CMgHal, in which Hal is a halogen atom, and subsequently hydrolysis of the intermediate product so formed.ALSO:Pharmaceutical compositions having tranquillising and sedative activity comprise an ethynyl indanol of the formula:  <FORM:1122166/A5-A6/1> wherein R1 is a hydrogen atom or a lower alkyl group containing from 1 to 4 carbon atoms and R2 is a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms a phenyl group or a lower alkoxy-substituted phenyl group wherein any alkoxy groups contain from 1 to 4 carbon atoms, in association with a pharmaceutical carrier or diluent.
Patent GB-238281-A (GB)
Title: Improvements in or relating to electrical apparatus for delivering a constant output when energized by a variable alternating input
IPC: G05F1/32
Filed: 1924-05-10
Abstract: 238,281. Brown, W. J., and Metropolitan-Vickers Electrical Co., Ltd. May 10, 1924. Thermionic valve circuits.-Substantially constant current is supplied to the cathodes of thermionic valves by transformers 10, 12, Fig. 1, having their primaries connected in parallel across a main supply circuit, and their secondaries in series opposition in the cathode circuit of a valve 16. The transformer 10 is run normally saturated and the transformer 12 is run normally unsaturated. A variable or fixed impedance 17 may be connected in series with the primary of the saturated transformer 10. The secondaries may be shunted by resistances provided with movable contacts. Alternatively the primaries or secondaries may be tapped or an adjustable air gap may be included in the magnetic circuit of the transformer 12. The two transformers may be combined into a unitary structure with opposed primaries 11, 13, Fig. 4, and a common secondary 14, adjustable air gaps 28, 30 being included in the unsaturated magnetic circuit. The Specification describes the action of the device with reference to characteristic curves of the two transformers. According to one Provisional Specifications, the valves may be used for rectification or generation of alternating current.
Patent GB-272828-A (GB)
Title: Improved food cover and tray for same
IPC: A47G19/26
Filed: 1927-05-02
Abstract: 272,828. Broadbear, S. May 2, 1927. Covers for plates and the like.-The edge 3 of the tray b, and the lower edge 4 of the cover a, of a combined food cover and tray are beaded inwards and outwards respectively to fit closely to one another. The wire gauze sides 2 of the cover may be connected to the sheet metal framing 5 and top 1 of the cover by doubling down portions of the framing and top, as shown in Fig. 3.
Patent GB-1307896-A (GB)
Title: Method and apparatus for generating motion in a molten metal bath
IPC: F27D3/16
Filed: 1970-03-11
Abstract: 1307896 Refining steel VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A G 11 March 1970 [14 March 1969 15 April 1969] 11763/70 Heading C7D [Also in Division B1] In apparatus for producing circulating motion in a molten metal bath which may be used to refine steel and which comprises in the embodiment shown a vessel 1 divided by planar partitions 6, 12 into spaces 25, 26, a pressure difference is established between the spaces so that gas flows through openings 10, 11 to lift a column of molten metal in the space between partitions 6, 12 and effect a circulation through openings 14, 15, 16. The pressure difference may be established by adding or removing gas from the appropriate space e.g. steel may be de-oxidized by adding carbon monoxide. In a second embodiment, Fig.2 (not shown), the space 26 is formed by a centrally located tube (27) which is concentrically surrounded by a tube (28). These tubes may be cone or bell-shaped. In a third embodiment, Fig. 3 (not shown), the tubes (31), (34) are connectedby supports (32), (33). The space (26) and the annular space (36) between these tubes may alternatively be formed by two tubes side by side or by one tube divided by a central wall. In a fourth embodiment, Fig. 4 (not shown), the vessel (39) is located above a container (37) and has tubes (41), (42) which depend respectively from the spaces 26, 25. The openins 10, 11, 14, 15, 16 may be formed by porous plugs.
Patent GB-829351-A (GB)
Title: Dynamo-electric machine forged rotor
IPC: H02K1/26
Filed: 1957-04-10
Abstract: 829,351. Shafts. ALLIS-CHALMERS MANUFACTURING CO. April 10. 1957 [April 16, 1956], No. 11787/57. Class 80 (2). [Also in Group XXXV] A dynamo-electric machine forged rotor 1 has an axial inspection bore 4 containing a magnetic plug comprising a plurality of longitudinal pieces 11 forming complementary parts of a cylinder and arranged to permit mutual radial movement to overcome the difference in diametrical expansions of the plug and bore due to centrifugal force during operation of the machine. There may be a single plug extending the length of the motor body 3 or, as shown, the plug consists of a plurality of sections 10 each comprising two semi-cylindrical pieces 11 located by slidable guide-pins 17 and urged radially apart by compression-springs 15. Tapped holes 30 permit plug insertion, withdrawal, and location such that the adjoining planer surfaces 12 are substantially parallel to the centre line of two magnetic poles produced by the rotor winding 5. In another embodiment, not shown, the springs are omitted and the sections 10 are held against relative angular movement by dowels loosely fitted in axiallyextending holes in adjacent ends of the pieces 11. The ends of the bore are closed by winding conductor leads, not shown, in a bore enlargement 6 and by a solid plug 32 locked in position by a rod 33 and a jamming grub-screw arrangement.
Patent GB-673922-A (GB)
Title: Improvements in or relating to the production of stiffened fabrics and articles made therefrom
IPC: D06M17/04
Filed: 1947-05-02
Abstract: 673,922. Compound fabrics. KANITZ, L. March 20, 1948 [May 2, 1947], No. 11795/47. Class 140. Semi-stiff, launderable laminated fabrics or articles of wearing apparel are made by bonding the layers by means of a thermoplastic resin under heat and pressure after treatment of the superimposed layers and adhesive with an aqueous solution or dispersion of a medium or high-boiling solvent for the adhesive and a water-miscible plasticizer. The solvent consists of one or more of, diacetone alcohol, diethylene glycol, methyl, ethyl, or butyl lactate, acetonyl acetone, ethylene glycol monoethyl ether acetate, diethylene glycol monomethyl or monoethyl ether, ethylene glycol monoethyl ether, dipropylene glycol, diethylene glycol monoethyl ether acetate. The plasticizer is one or more of, mono-, di-, or tri-acetin, diethylene-glycol-diacetate, di-methoxytetraglycol, triethyl phosphate, and diethyl tartrate. The total content of solvent and plasticizer is 10-20 per cent. The resin may be a polyvinyl or acrylic resin, e.g. polyvinyl chloride or acetate, a copolymer of vinyl chloride and vinyl acetate, polystyrene, polyvinylidene chloride, a polyvinyl acetal, or a mixture. The resin may be plasticized and may be used as or in an inner ply which serves to unite two outer fabrics between which it is placed. The inner ply may be paper or fabric coated or impregnated with a solution, dispersion, or paste of the resin, or may be fabric woven from yarns containing resin fibres or coated with resin, or may be a resinous film or foil.
Patent GB-912508-A (GB)
Title: Improvements in quick-release self-sealing fluid supply line couplings
Inventor: SHERWEN THEO
IPC: F16L37/34
Filed: 1960-04-04
Abstract: 912,508. Pipe couplings. HORSTMANN & SHERWIN Ltd. Jan. 17, 1961 [April 4, 1960], No. 11798/60. Class 99(1). In a quick-release self-sealing coupling of the kind consisting of two parts 1, 2 at least one of which houses a spring influenced valve member which controls the fluid passage therethrough and is arranged to set back automatically, from a closed position into an open position, on connection of the parts the valve member is constituted by an axially slidable ring 14 which co-operates with a valve seating 13b on a fixed co-axial centre abutment 13. A permanent fluid seal between the ring 14 and the part 1 is provided by a corrugated sleeve 16 of rubber and flexible synthetic material the ends of which are sealed respectively to the ring and part 1 and which is arranged so that the corrugations are substantially flattened against the inner wall surface of the part 1 when the valve 14 is closed. The valve when closed is sealed by a flexible sealing ring 17 which presents a concave surface to the pressure fluid. The part 2 houses a poppet valve 3 which is urged against a seat 4 by a spring 5 and is sealed in the closed position by a sealing ring 7 of trapezoidal cross-section let into an annular channel the wall of which remote from the mouth of the part 2 slopes outwardly to allow the ring 17 to present a concave surface to the fluid pressure. The parts 1, 2 are coupled together by means of an interrupted flange 4b, and an interrupted channel 19b and are sealed by a sealing ring 18 similar to the sealing ring 7. A locking pivoted spring catch 20 may be provided. Alternatively the parts may be coupled by a pair of diametrically opposed spring influenced catches provided on the part 1 which engage openings in the external wall periphery of the part 2.
Patent GB-991603-A (GB)
Title: Electrophotographic materials
Inventor: GHYS THEOFIEL HUBERT
IPC: C07D235/20
Filed: 1961-03-30
Abstract: Photoconductive compositions as in Specification 964,873 use as photoconductive compounds pyrroles, pyrrolines, pyrrolidines, indoles, indolenines, indolines and naphthopyrrolines, including substituted derivatives and cyanine and merocyanine dyes derived from such.  Many typical compounds are mentioned.  The sensitizing dyestuffs, resins and auxiliary materials mentioned in Specification 964,873 may be used. Specified resins are polyvinyl formal and butyral, polyvinyl-carbazole and a terpolymer of vinyl chloride, vinyl acetate and maleic anhydride. Specifications 856,770, 883,312, 916,660 and 964,871 also are referred to.ALSO:A cyanine dye of the formula <FORM:0991603/C4-C5/1> is made by reacting 3-ethyl-2-methyl-benzthiazolium iodide with N-methylisatin-a -anil. Specifications 344,409, 354,898, 428,222, 428,359, 428,360, 633,824, 856,770, 883,312, 916,660, 964,871 and 964,875 are referred to.