baber/WOPTO huggingface dataset:
Patent GB-607273-A (GB)
Title: Improvements in or relating to gas purification apparatus
IPC: C10K1/12
Filed: 1946-02-12
Abstract: Sulphur is obtained in the regeneration of gas purification solution in flowing up a series of vertical columns into the bottom of each of which a solid-precipitating gas is introduced, the liquid level being progressively higher in succeeding columns and a foam containing solids collecting at the top of each and flowing step-wise for removal from the first column.  Fouled absorbent solution such as a thio-arsenate entering a regenerating tower 1 through a pipe 2 is mixed with air forced through a line 3, precipitated sulphur being floated thereby to the surface where it collects as a blanket 4 in a quiescent zone of greater cross-sectional area.  Liquid flows through a level regulator 7 and pipe 8 to a second tower 9 from the top of which further sulphur foam 12 flows over a weir 16 into the first tower.  The collected foam flows over a lower weir 17 to an inclined trough 18 and thence through a line 19 to a filter.  Regenerated solution separated from <PICT:0607273/III/1> its foam blanket 12 flows through an outlet 13 and level regulator 14 back to the absorber.  Modifications comprise a single tower divided by a weir into two columns, or coaxially disposed pipes and a circumferential foam-collecting trough.
Patent GB-1044123-A (GB)
Title: Process for the production of gases containing methane
Inventor: MOSELEY FRED
IPC: C07C1/00
Filed: 1964-02-03
Abstract: Methane-containing gases are produced by rapidly heating finely divided solid carbonaceous fuel (coal, lignite, coal chars, semicokes) to a temperature of from 800 DEG  to 1200 DEG  C. in hydrogen which has a partial pressure of at least 100 atmospheres. Partial pressures of 200 to 1000 atmospheres are mentioned, the preferred temperature range is 950 DEG  to 1050 DEG  C., and the fuel is heated to reaction temperature in 1.5 seconds or less.  The reaction may be carried out in a transfer line reactor which may be heated, e.g. electrically, the coal etc. particles being conveyed through the reactor in a stream of the hydrogenating gas, which may be preheated. The concentration of CH4 in the gas produced may be controlled by controlling the residence time, temperature, pressure and the ratio solid fuel to hydrogenating gas.  Three specific examples are described.  In one, the product gas comprises 36 vol. per cent methane and 64 vol per cent hydrogen. In another, the percentages are 9 and 91 respectively, and the residue comprises 79.2% ash by weight. The product gas may be used to enrich H2-containing gas for town gas, or may be reformed with steam to produce an H2-rich gas, a portion of which may be reacted with coal according to the invention.
Patent GB-1085864-A (GB)
Title: Improvements in terminals for electrical apparatus
IPC: H01R4/30
Filed: 1965-02-03
Abstract: 1,085,864. Terminals. H. L. NAIMER. Feb. 3, 1965 [Feb. 28, 1964], No. 4668/65. Heading H2E. A terminal has inner and outer members 2, 1 with aligned holes 2a, 1a to receive a conductor 8, and a clamping screw 4 which is threaded into the inner member but passes freely through the outer member so that when it is tightened, it draws the inner member upwardly to clamp the conductor as shown. In use, the screw is thus in tension and a looking washer 6 may be provided. A further conductor having a flat end-piece may be connected by clamping the end-piece beneath the washer. The inner member 2 may be in the form of a block and the screw 4 may or may not be long enough to engage the conductor 8. Either of the members 1, 2 may be rigidly connected to a switch contact. Figs. 6-12 (not shown). The holes may have a V-section where engaged by the conductor, they may be open to the side, and they have pointed portions to bite into the conductor, Figs. 13-17 (not shown).
Patent GB-999289-A (GB)
Title: Improvements in multi-filament glass tapes
IPC: D04H3/07
Filed: 1961-08-10
Abstract: 999,289. Uniting threads and cords by adhesive. DE BELL & RICHARDSON Inc. Aug. 10,1961 [Aug. 24, 1960], No. 4746/65. Divided out of 999,288. Heading D1K. [Also in Division B8] A package is formed by winding a continuous length of flexible, multifilament glass tape on a flanged spool. The filaments forming the tape are uniformly arranged in mutually parallel relationship throughout the length of the tape and are uniformly distributed from edge to edge of the tape. The individual turns of the tape are spaced from laterally adjacent turns and at an oblique angle to adjacent underlying turns. The tape is coated with a coupling agent, capable fo chemically reacting with both the glass and a thermosetting resin (used to make bonded structures embodying the tape) and including resinous material which improves handling of the tape and provides crosslinking of the resin and glass surface. The package may be produced from roll-wound, size-coated, multifilament glass having alternate and oppositely directed twists therein, Fig. 1 (not shown, but corresponding to Fig. 1 of Specification 999,288). In the production of a bonded tubular structure, taped strands 6, drawn under equal tensions from wound spools 56 mounted in a creel 58, are gathered by a guide 64 into contiguous edge-toedge relation, pass under stationary guide 66 the lower portions of which are immersed in an epoxy, phenolic, silicone or polyester resin 68 in a heated reservoir 70. The resin-coated strands pass under a tensioning roll 74, over an electrically heated plate 76 which maintains the resin in free-flowing condition and spreads all the filaments into a uniform ribbon of width corresponding to the width of cavity 80 of a rotating mandrel or mould 82 to which the filaments are led by an oscillating guide 84 and in which they are wound and compacted (by pressure strip 88) under control of hot air directed from a gun 90. The wound assembly is heated to gel and then cure the resin content and the structure is removed from the mould.
Patent GB-1020333-A (GB)
Title: Improvements in or relating to gymnastic apparatus
Inventor: COX RAYMOND
IPC: A63B9/00
Filed: 1963-02-06
Abstract: 1,020,333. Bolt fastenings. H. HUNT & SON Ltd. Jan. 8, 1964 [Feb. 6, 1963], No. 4799/63. Heading E2A. [Also in Division A6] A gymnastic frame comprises bolts 28, 31 adapted to engage holes in a floor and ceiling respectively, the bolts being operated simultaneously by a pivoted handle 22. Two lugs 25, 26 on the handle are disposed on either side of a projection 27 of the bolt 28, and the handle is connected to spring urged bolt 31 by means of a wire 32.
Patent GB-1377082-A (GB)
Title: Lever operated valves
IPC: F16K11/078
Filed: 1972-04-20
Abstract: 1377082 Valves H WATTS 20 April 1972 [23 Jan 1971] 4815/73 'Divided out of 1377081 Heading F2V  The Specification describes and claims a hand lever assembly capable of causing both rotational and axial displacement of a valve member for mixing supplies of hot and cold water to a common outlet. The assembly is also described in conjunction with the valve member in Specification 1,377,081.
Patent GB-514882-A (GB)
Title: Process for hard soldering metal bodies, especially the anodes of electric discharge tubes
IPC: H01J19/28
Filed: 1938-02-16
Abstract: 514,882. Making anodes for electric discharge tubes; soldering. VEREINIGTE GLUHLAMPEN UND ELEKTRIZITATS AKT.-GES. Feb. 16, 1938, No. 4838. Void. Convention date, Feb. 16, 1937. [Classes 83 (ii) and 83 (iv)] In electric discharge tubes having anodes provided with cooling ribs and formed from a number of parts secured together, thin bands of solder are laid between the metal parts to be united and the parts then heated to a temperature above the melting point of the solder. For ease of handling the parts may be united at a few points by welding-after the solder has been placed between them. When the anodes are made of nickel, copper is used as the soldering metal and the soldering temperature is above 1,100‹ C., preferably produced in an electric furnace filled with hydrogen. In order to prevent the solder from spreading outwards the surfaces to be joined are preferably made convex at their edges.
Patent GB-992486-A (GB)
Title: Stabilized photographic silver halide emulsions
IPC: G03C1/34
Filed: 1962-02-08
Abstract: 992,486. Stabilizing silver halide emulsions. EASTMAN KODAK CO. Feb. 8, 1962 [Feb. 8, 1961], No. 4860/62. Heading G2C. A photographic silver halide emulsion contains as stabilizer and antifoggant a bromine- or chlorinesubstituted saturated aliphatic carboxylic acid or a water-soluble salt thereof. Com - pounds specified are bromo-acetic acid, α, #- dibromobutyric acid, #-bromopropionic acid, #- chloropropionic acid, α, α<SP>1</SP>, dibromoadipic acid, α, α<SP>1</SP> -dibromopimelic acid, α, α<SP>1</SP>-dibromosebacic acid, α, α<SP>1</SP>-dichloroadipic acid, α, α<SP>1</SP>-dibromosuccinic acid, α, α<SP>1</SP>-bis (bromomethyl)-#-bromopropionic acid and α, α-bis (chloromethyl)-#- bromopropionic acid. Specifications 898,328 and 964,514 are referred to.
Patent GB-325101-A (GB)
Title: Improvements in and connected with the mounting of power transmission gears or wheels on shafts or axles
IPC: F16D1/095
Filed: 1929-02-13
Abstract: 325,101. Stone & Co., Ltd., J., and Hatcher, E. C. Feb. 13, 1929. Yielding chain and other wheels.-In a chain or other wheel, divided unequally to facilitate assembly on the axle of a railway vehicle for example, the larger part a of the wheel is bolted to a flange k on a securing sleeve h and the bolt holes may be large and contain resilient washers to allow a certain amount of flexibility. A similar sleeve n may be provided on the other side of the wheel.
Patent GB-129047-A (GB)
Title: A Vertical Water Tube Steam Generator.
Inventor: SMITH RALPH JOHN
IPC: F22B13/02
Filed: 1918-09-05
Abstract: 129,047. Smith, R. J. Sept. 5, 1918. Addition to 120,665. Water-tube boilers. - In the water-tube boiler described in the parent Specification, the gases are led to the chimney through uptakes i<3>, i', Figs. 1 and 2, disposed at the corners of a combustion chamber casing o of square form. Curved baffle-plates K are secured to the upper tubeplate N concentrically with the periphery of the drums. The smoke-tubes in the upper drum may be replaced by welded uptakes a, Fig. 4, secured to the tubeplate and crown-plate of the drum by riveted seams. The water-tube E<1> at the centre of the combustion chamber may be larger and more widely spaced than the other water-tubes. The smoke-tubes in the upper drum may be arranged in triangular sets.
Patent GB-866398-A (GB)
Title: Preparation of vitamin a intermediate
Filed: 1960-02-11
Abstract: 4- Methyl- 6- [21,61, 61- trimethylcyclohexen11-yl]-hexa-3,5-dien-1-yne is obtained in a process which comprises heating at a temperature between 70 DEG C. and 250 DEG C. a solution of 4-methyl- 6- [21,61,61 trimethylcyclohexen-11-yl]-hex-5-en-1-yn-4-ol in an inert solvent, in the presence of cupric sulphate.  As solvent there may be employed benzene, toluene, ethyl benzene, hexane and petroleum ether. Specifications 1557/1912, 664,815 and 755,079 are referred to.
Patent GB-433708-A (GB)
Title: Improvements in pneumatic percussive tools for expanding hollow bodies
IPC: B25D9/08
Filed: 1934-02-14
Abstract: 433,708. Percussive drills. HENSCHEL & SOHN AKT.-GES., 2, Henschelstrasse, Cassel, Germany. Feb. 14, 1934, Nos. 4949, 4950, and 4951. Convention dates, Feb. 20, 1933, May 13, 1933, and July 31, 1933. [Class 124] [See also Group XXII] A percussive tool 1 has a muff 3 secured to its front end which encloses a tool 5 used for expanding tube ends. To withdraw the tool 5 from the work the percussive tool 1 is pulled in that direction, thus bringing the collar 9 of the tool against the outer face of the muff. The reciprocating piston strikes the anvil plate 2 producing blows to withdraw the tool. The throttle valve 12 has two springs 19, 20 the first of which acts against the normal travel of the valve, the second part acting against the valve when it is pressed further to open the channel 18 supplying extra air for the return blows. A handle 24 is pivotally attached to the front end of the tool body. The expanding punch has a conical shoulder b c, the angle of which is steep enough to expand the tube end temporarily and so loosen the part a.
Patent GB-928975-A (GB)
Title: Method of making a cathode for an electrolytic cell and cathodes made by the method
IPC: C25C3/08
Filed: 1962-02-09
Abstract: 928,975. Electrodes for electrolytic cells. NORTON CO. Feb. 9, 1962 [May 11, 1961], No. 5018/62. Class 41. [Also in Group XXII] In making a cathode for an electrolytic cell an alloy member comprising a major proportion of iron and minor proportions of nickel cobalt and manganese is interposed between a metal base and a tip of titanium diboride, zirconium diboride or titanium carbide with silvermanganese solder between the alloy member and the base and tip respectively, the assembly is heated in a protective atmosphere to melt the solder and the assembly is slowly cooled. In making a cathode used to reduce alumina to aluminium a tip 1, Fig. 2, of titanium diboride produced by powder metallurgy is placed in a cup 2 of a 29% nickel-17%-cobalt-0.2% manganese-iron alloy having substantially the same expansion coefficient as that of the tip with circular shims of solder e.g. 85% silver, 15% manganese between the tip and cup. Shims of the solder are also placed between the cup and an iron or steel base having a higher coefficient of expansion. The tip, cup and base are sand or shot blasted and cleaned and the solder is cleaned. The assembly is heated in a furnace containing nitrogen, argon hydrogen or helium to melt the solder 5 and is slowly cooled, part of the cooling taking place in an inert atmosphere. In a modification the base 7, Fig. 3, has a cupshaped end 8 into which the tip 9 is inserted with a plate 6 of the Ni-Co-Mn-Fe alloy between them and solder between the tip and plate and between the plate and base.
Patent GB-1197606-A (GB)
Title: Alkylation of Adamantane Hydrocarbons
IPC: C07C2/86
Filed: 1968-02-02
Abstract: 1,197,606. Alkylating adamantane hydrocarbons. SUN OIL CO. 2 Feb., 1968 [2 Feb., 1967], No. 5121/68. Heading C5E. Saturated C 10 -C 30  adamantane hydrocarbons having 1 to 4 unsubstituted bridgehead carbon atoms are alkylated by reaction with a C 2 -C 30  aliphatic or cycloaliphatic mono-olefin or alcohol at - 20 to 100 C. in the presence of H 2 SO 4  or HF of strength 90-100% by wt. Straight chain alkylation products are obtained when the alkylating agent has less than 4 carbon atoms even if branched, but branched chain products are formed when the alkylating agent has 4 carbon atoms or more even if it has a straight chain structure. The adamantane starting material is preferably mixed with the mineral acid so as to form an emulsion before alkylation. When the starting adamantane has 2 or more unsubstituted bridgehead carbon atoms compounds containing two adamantane nuclei joined by an alkylene group are also formed. Examples describe the following reactions:-1,3-dimethyl-adamantane with C 3 -C 5  alcohols, cyclopentanol, cyclohexanol and nhexene-1; adamantane with cyclopentanol; 1-ethyl-adamantane with n-propanol; and 1 - ethyl - 3,5 - dimethyl - adamantane with isopropanol and cyclopentanol.
Patent GB-312115-A (GB)
Title: Improvements in or relating to chairs, seats and the like
IPC: A47C7/40
Filed: 1928-02-20
Abstract: 312,115. Headley, F. H. Feb. 20, 1928. Pivoting adjustments ; attaching hinge members to articles adjustably.-In a seat an upright arm g, carrying a pivoted back rest h, is slidably and pivotally mounted upon the seat frame, by a clamp arrangement consisting of a bifurcated member b, rigidly secured to the frame, having one limb formed with serrations c, a co-operating rotatable serrated element f having a groove &c. to slidably receive the arm g and a handoperable clamping screw i which abuts against or passes through the arm. In the construction shown the serrated element f is formed with a spigot f<2> rotatably received in a socket c<1> formed in the serrated limb of the member b, and the screw i engaging a tapped hole in the other limb and abutting against the arm g. A spring j is interposed between the serrated members. In a modification, the screw i passes through the arm g and both limbs of the member b. Specification 182,175, [Class 52 (ii), Furniture for sitting &c. upon], is referred to.
Patent GB-163143-A (GB)
Title: Miners' safety lamp improvement
IPC: F21L23/00
Filed: 1920-02-23
Abstract: 163,143. Thomas, D. J. Feb. 23, 1920. Miners' safety lamps.-In a miner's safety lamp in which a gauze is secured between outer and inner perforated casings by means of a screwed ring, a second screwed ring is provided for locking the gauze-securing ring in position. The inner perforated casing B screws into the outer casing A and supports the glass L. The gauze E, having asbestos packing-rings D, F above and below, is secured in position by a ring G, which engages an external thread on the inner casing. The screwed locking-ring I engages with internal threads on the outer casing into which the oilreservoir J is screwed. The wick-holder K is of such a length that the wick is in line with the bottom of the glass.
Patent GB-294507-A (GB)
Title: Improvements in or relating to sulphuro-anhydride compounds of tertiary bases
IPC: C07D213/89
Filed: 1927-02-25
Abstract: 294,507. Beckett, E. G., Harris, J. E. G., Wylam, B., Thomas, J., and Scottish Dyes, Ltd. Feb. 25, 1927. Sulphuro-anhydride derivatives of tertiary bases; sulphonic acids. - Sulphuro-anhydride derivatives of tertiary organic bases, e.g. pyridine or dimethylaniline, are obtained by causing the base to react with sulphur trioxide, or with a substance capable of forming a sulphuro-anhydride derivative with the base, in the form of vapours, gases, mists or sprays, with or without the presence of inert gases. If sulphur trioxide is used, the base and sulphur trioxide are employed in substantially equi-molecular quantities, but if chlorsulphonic acid or an alkyl ester is employed, approximately two molecular proportions of the base are employed to one of the acid or ester, the product being a mixture of the sulphuro-anhydride and hydrochloride or alkyl chloride of the base. The product is obtained in the form of a fine powder or snow. The process may be carried out by distilling the base at a uniform rate and leading the vapour into the reaction chamber, by passing a current of dry air or other inert gas through the heated base, or a mist or spray of the base may be used. The sulphur trioxide may be obtained by heating the calculated quantity of oleum and leading the vapour into the reaction chamber, or by vaporizing or atomizing the chlorsulphonic acid or ester. The process may also be carried out in conjunction with processes for the preparation of sulphur trioxide bv the contact method, the sulphur trioxide with the inert diluent gases associated with it being led direct from the contact mass to the reaction chamber. To prevent condensation of the materials on their way to the reaction chamber an arrangement with three concentric tubes may be employed, the inner tube being steamheated, while the sulphur trioxide vapour and base are passed through the middle and outer tubes. In an example, rapid currents of dry air are passed through separate heated vessels containing pyridine and oleum and thence to a reaction chamber rotating in a trough of cold water. The reaction chamber is connected with a larger stationary vessel, on the walls and floor of which the pyridine sulphuro-anhydride collects in the form of a snow-like powder. The products are suitable for use in the preparation of esters of vat dyes and for sulphonation of various hydrocarbons.
Patent GB-483600-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/46
Filed: 1937-02-23
Abstract: 483,600. Sparking-plugs. GRAF, L. Feb. 23, 1937, No. 5478. Convention date, Fob. 17. [Class 7 (iv)] A cup-shaped insulated electrode 8 forms an annular gap with a ring 14 which is of circular, triangular or trapezoidal cross-section, or the earthed electrode consists of the edge of a conical sleeve clamped between the insulator and casing. A recess 16 is left behind the gap permitting flow of the combustible mixture. The conductor 2 is spaced from the insulation by a collar or projection 17 of poor thermal conductivity. The inside of the insulator bore is metal-plated or lined and the enclosed space may be exhausted of air. Cooling is promoted by ribs 18 and openings 19. An asbestos lining may separate the conical insulator and casing surfaces.
Patent GB-681352-A (GB)
Title: Improvements relating to sparking plugs for internal-combustion engines
Inventor: SILMAN HAROLD
IPC: H01T13/52
Filed: 1949-03-01
Abstract: 681,352. Titania ceramic compositions. LUCAS, Ltd., J. Feb. 21, 1950 [March 1, 1949], No. 5527/49. Class 22. [Also in Group XXVII] In a sparking plug component, for example a disc d, made from porous ceramic or like material, such as powdered alumina, tetragonal titanium di-oxide is incorporated in the component, the latter being adapted to provide a spark discharge path between the electrodes a, c of the plug. The disc d is inserted between the centre and earthed electrodes a and c, respectively, and provides the surface over which the igniting sparks travel; the disc is made semiconductive by impregnating it, under pressure or in a vacuum, with a titanium compound, such as butyl titanate. The disc is then heated at approximately 950‹ C. for one hour and finally heated at about 1150‹ C. for a further hour or more in an atmosphere of cracked ammonia gas; the first heating stage may be omitted. The disc d may be dispensed with and the insulator b arranged with its inner end flush with the two electrodes and made semi-conductive as above and then coated with an insulated covering, except at the inner end, or the oxide may be incorporated with only the inner end of the insulator. The tetragonal titanium di-oxide may be produced from any other titanium compound after treatment in a suitable temperature and atmosphere.
Patent GB-230098-A (GB)
IPC: G01S3/42
Filed: 1925-02-28
Abstract: 230,098. Weber, J. March 1, 1924, [Convention date]. Yeast.-In the manufacture of yeast by the aeration process, a small quantity of an ammonium salt. such as the sulphate, is added to the wort, which already contains sufficient organic nitrogen for the growth of the yeast, at the commencement of the fermentation to supply readily-assimilable nitrogen for a preliminary rapid growth of the yeast. In the subsequent stages, the nitrogen is supplied by the organic compounds contained in the wort.
Patent GB-1495912-A (GB)
Title: Fluorometer
IPC: G01J1/04
Filed: 1976-02-13
Abstract: 1495912 Fluorimeter BECKMAN INSTRUMENTS Inc 13 Feb 1976 [24 Feb 1975] 05666/76 Heading G1A [Also in Division G2] In a fluorimeter a slit is illuminated by an incandescent lamp and a line image 12 of the slit is projected on to a sample surface 44 Fig. 3 via a band pass filter and a hole in a mask 40. Fluorescent light from the sample is collected via a window 46 in the mask and transmitted by an optical fibre 34 whose angled end is within a port in the mask 40, via a filter to a detector. The filters interposed in the path from the lamp to the sample and from the sample to the detector respectively pass only exciting and fluoresced light.