baber/WOPTO huggingface dataset:
Patent GB-759713-A (GB)
Title: Improvements in or relating to processes for obtaining sulphur and possibly sulphur dioxide, from pyrites ores
IPC: C01B17/06
Filed: 1954-03-17
Abstract: In a process for producing sulphur and possibly sulphur dioxide, wherein pyrites is heated in a distillation stage by sulphur vapour, and or sulphur dioxide, passed from the subsequent roasting stage, with or without an intermediate complete or partial reduction of sulphur dioxide to sulphur, to distil labile sulphur from the pyrites, and the pyrites is then passed to the roasting stage in which it is roasted to yield sulphur dioxide gases, which are passed to the distillation stage with or without intermediate complete or partial reduction, the distillation gases coming from the distillation stage are passed through fresh unheated pyrites, to effect pre-heating, thereof, before it is fed to the distillation stage, and the gases for roasting are passed through roasted ore discharged from the roasting stage, to effect, cooling of the roasted ore and preheating of the roasting gases, before the latter enter the roasting stage.  Both solidgas heat-exchange contacts may be by fluidized technique, or either may be by indirect heat-exchange. Specifications 757,547 and 758,956 are referred to.
Patent GB-853029-A (GB)
Title: Improvements in and relating to semi-conductor devices
Inventor: CASTLE PETER FRANK
IPC: H01L29/92
Filed: 1957-03-08
Abstract: 853,029. Semi-conductor devices. BRITISH THOMSON - HOUSTON CO., Ltd. March 3, 1958 [March 8, 1957], No. 7783/57. Drawings to Specification. Class 37 A method of forming PN junctions in. semiconductor bodies comprises heating a body containing a donor (acceptor) impurity and a larger quantity of an acceptor (donor) impurity having a higher diffusion coefficient that the donor (acceptor impurity) to diffuse the impurities differentially towards the surface of the body and to evaporate them therefrom until a PN junction is formed beneath the surface. The heating is carried . out preferably in an inert atmosphere or vacuum at a temperature below the melting point of the semi-conductor, for example below 1400 ‹C for silicon, and below 900 ‹C for germanium. Where germanium is used the body initially contains one of the acceptors gallium, indium, and boron and an excess of one of the faster diffusing donors arsenic, antiinony and phosphorus. In silicon, in which the acceptors diffuse faster than the donors, the body initially contains an excess of acceptor impurity. A two junction body suitable for use in transistors may be formed by grinding or etching the converted region from the edge of a wafer treated in the above described manner. A PNP or NPN junction may be formed by combining the above process with the simultaneous inward diffusion of an activator impurity characteristic of the same conductivity type as the excess impurity and having a diffusion coefficient intermediate the coefficients of the donor and acceptor initially present in the body. For instance indium may be diffused into silicon doped with excess aluminium and antimony, or phosphorus diffused into germanium containing gallium and excess arsenic. A further junction may then be provided to form a PNPN or NPNP body by a convertional alloying and diffusion process. Specification 728,129 is referred to.
Patent GB-292672-A (GB)
Title: An improvement in the design of refractory arches for boiler and other furnaces
IPC: F27D1/12
Filed: 1927-03-22
Abstract: 292,672. Dickinson, A., (Executrix of Dickinson, H.), and Robinson, P. J. March 22,1927. Archcs; furnacc fronts. -In connection with the furnace arch of a watertube boiler, an air chamber is formed above the ignition arch and in front of the main arch and communicates with ducts S formed in the main arch by means of perforations in the arch The air chamber is formed by metallic walls e<1> and a wall c<2> built over the main arch. Each block is formed with one, or with two ducts, the latter construction being use d when successive transverse rows break joint. In the case of an inclined arch a stepped construction is employed and the perforations are inclined with respect to the block face, so that on assembly straight inclined ducts are obtained, as shown. The perforations are positioned relatively close to the inner face of the block. The ducts may deliver into the combustion chamber, as shown, or may connect with ducts in the front wall L leading to an economizer, pre-heater &c.
Patent GB-793856-A (GB)
Title: Improvements in or relating to electromagnetic devices for braking a rotary member
IPC: H02K49/04
Filed: 1954-11-23
Abstract: 793,856. Eddy-current brakes. COMPAGNIE DE CONSTRUCTION MECANIQUE PROCEDES SULZER. Nov. 23, 1954 [July 5,1954], No. 7835/57. Divided out of 793,854. Class 35. Both members of an eddy-current brake carry squirrel cages and the numbers of teeth on the two members are equal, as shown, such limb of the channel section stator is toothed with conducting metal S4 in the gaps united by end rings S3 and there is a similar cage on the rotor extending between end rings K3. It may be incorporated in an epicyclic gear, e.g. with the rotor integral with the outer toothed annulus 1 or with the planet carrier.
Patent GB-710028-A (GB)
Title: Improvements in derivatives of 6:7-dihydroxy-coumarin and production thereof
IPC: C07D311/16
Filed: 1952-03-27
Abstract: The invention comprises derivatives of 6 : 7-dihydroxycoumarin (esculetol), 4-methyl-6,7-dihydroxycoumarin (4-methyl esculetol) and the 6-glucoside of 6 : 7-dihydroxycoumarin (esculosid) wherein the 6-position of esculetol or 4-methyl esculetol or the 7-position of esculosid is substituted by an alkyl group of 1 to 3 carbon atoms, which carries as a substituent a tertiary amine group, e.g. dialkylamino piperidino or morpholino, or a carboxyl group or a hydroxyl group.  It comprises also the quaternary salts such as the methiodide and the acid addition salts of the derivatives wherein the substituent group is a tertiary amino group and the salts such as the sodium salt of the derivatives wherein the substituent group is a carboxyl group.  The compounds are prepared by reacting esculetol, 4-methyl esculetol or esculosid in an alkaline aqueous medium with an alkyl halide, particularly an alkyl chloride substituted by a tertiary amino, carboxyl or hydroxyl group, the halide being employed in the form of its hydrohalide, particularly the hydrochloride when the substituent is a tertiary amino group or as the alkali metal salt when the substituent is a carboxy group.  Examples describe the preparation of (1) and (2) the 6-b -diethylaminoethyl ether of 4-methyl esculetol and the corresponding quaternary methyl iodide; (3) and (4) the 6-b -morpholinyl ethyl ether of 4-methyl esculetol and the corresponding quaternary methyl iodide; (5) the 6-carboxymethyl ether of 4-methyl esculetol; (6) the 6 - a  - carboxyethyl ether of 4 - methyl esculetol; (7) the 6-b  : g -dihydroxy propyl ether of 4-methyl esculetol; (8) the 7-b -diethylaminoethyl ether of esculosid and (9) the 7-carboxymethyl ether of esculosid.
Patent GB-578817-A (GB)
Title: Improvements in or relating to typewriting or like machines
IPC: B41J11/54
Filed: 1944-04-27
Abstract: .578,817. Typewriters &c. REMINGTON RAND, Ltd., and WOODGATE, P. W. April 27, 1944, No. 7919. [Class 100 (iv)] A typewriter, calculating or book-keeping machine, teleprinter, &c. having a travelling carriage carrying one or more sheets on which matter is typed, and a second carriage movable along the first carriage between a position in which the sheets carried by the first carriage are exposed and a position in which sheets carried by the second carriage are superimposed on the sheets carried by the first carriage, one or more trays mounted to move with the second carriage are provided to contain long sheets constituting the sheets carried by the second carriage. The main carriage 3, Fig. 1, slidable on rails 4 as usual, has secured thereto at each end brackets 86 between which extends a rail 7 supporting and guiding a second carriage 6 which is movable from the position shown in broken lines to the position shown in full lines in which sheets carried thereby are superposed on sheets carried by the carriage 3. The carriage 3 is provided with a platen roller 5, Fig. 3, and front feed rollers 24, and a deflector 23 which guides sheets 22 passing from a tray 16 round the platen. The tray 16 is rigidly connected by a plate 20 to brackets 21 fixed to the rail 7 so that the tray travels with the carriage 3, the tray being guided by rollers 19 engaging guide rails 13. From the platen, these sheets 22 pass under a bail 26. The carriage 6 comprises a back plate 8 carrying rollers 10, 11 engaging the edges of the rail 7 and a front plate 9 spaced from the plate 8 for the passage of sheets passing from a tray 17 between the deflector 23 and a second deflector 35 and thence between the platen 5 and feed rollers 24 and between the plates 8, 9. The plate 9 is hinged to the plate 8 along one side edge to facilitate insertion of the sheet. The front of the plate 9 may be provided with means, constructed and operating as described in Specification 578,831, for holding and line spacing a third sheet 34 which passes from a tray 18 between the deflectors 23, 35, platen 5 and feed rollers 24. The trays 17, 18 are rigidly secured together and the tray 18 is provided with a plate 28 connected with the carriage 6 so that the trays 17, 18 move with this carriage, rollers 27 on the tray engaging guide rails 14. The sheets 34, 33 are carbon backed or provided with carbon sheets. When the carriage 6 is in the broken line position of Fig. 1, matter is typed as usual directly on the sheets 22. If it is desired to type certain parts of this matter also on the sheets 33, 34, the carriage 6 is moved into the full line position of Fig. 1. Carbon copies of matter then typed directly on the sheet 34 are produced on the sheets 33 and 22.
Patent GB-1494135-A (GB)
Title: Spark plug connectors
IPC: H01T13/00
Filed: 1975-02-26
Abstract: 1494135 Spark-gap connector SIEMENS AG 26 Feb 1975 [16 April 1974] 7955/75 Heading H2E [Also in Division H1] A spark plug connector, Fig. 2, includes an enclosed spark gap 10, Fig. 1, comprising two spaced apart cup-shaped electrodes 1, 2 sealed in respective ends of a tubular insulator 5 wherein each electrode has two concentric centrally disposed recesses, one larger than the other, to define an annular shoulder 3 therebetween and the tubular insulator 5 is matched to the internal diameter of the connector insulator 9 and the mounting and connecting of the spark gap 10 is effected by using the shoulder 3 at each end thereof. The adjacent and opposed bottom surfaces 4 of the second recess of each electrode may be provided with a layer 6 of a burn-resistant material. The insulator 5 is preferably made of ceramic material and the spark gap may be filled with an inert gas. The spark plug connector may be used in the ignition system of an internal combustion engine, and as shown, the spark gap 10 is disposed between the compression spring 12 of contact terminal 11 and a suppressor resistor 13 and serves to isolate the spark plug from the ignition energy source until an adequately high voltage level has been reached.
Patent GB-1082473-A (GB)
Title: Improvements in or relating to jacquard cylinder drive motions
Inventor: HARDAKER HAROLD
IPC: D03C3/24
Filed: 1964-02-26
Abstract: 1,082,473. Jacquard cylinder drive. JOHN T. HARDAKER Ltd. Nov. 27, 1964 [Feb. 26, 1964], No. 7966/64. Heading DIE. A pawl 14 moves bodily with a jacquard cylinder 4 as it reciprocates below the needle box 19 and changes its angular relationship to the cylinder axis, thereby rotating a ratchet wheel 1 fixed to the cylinder to advance it one face. The pawl is pivoted on a triangular plate 9 journalled on the cylinder shaft 8 and pivoted to a swingable arm 11. Either of the two ends 15 and 16 of the pawl may engage the ratchet to advance the cylinder in either direction. The cylinder is reciprocated below the box so that the pawl rotates the cylinder in the forward/reverse direction as it is lowered or raised, respectively.
Patent GB-124946-A (GB)
Title: Improvements in the Manufacture of Sulphate of Ammonia.
Inventor: SHEARD JOHN TOMLINSON
IPC: C01C1/249
Filed: 1918-05-13
Abstract: 124,946. Sheard, J. T. May 13, 1918. Ammonium sulphate.-To reduce the amount of free acid contained in drained 'ammonium sulphate crystals, the magma of crystals enveloped in mother - liquor is sprayed with clean water immediately it is ejected from the saturator and before any draining-away of mother-liquor has taken place. The water is supplied as a shower of intimately divided or atomized jets by a tube g conveying water under pressure 'and having a flexible or swivelled end piece terminating a rose or other form of jet. The crystals may be removed from the saturator to the draining-table f by a scoop or by a steam ejector, or the saturator a may be provided with a conical bottom i terminating in a discharge pipe j fitted with a valve k.
Patent GB-526293-A (GB)
Title: Improvements in or relating to immersion pump units
IPC: F04D13/06
Filed: 1939-03-11
Abstract: 526,293. Centrifuga pumps. NOETZEL, E March 11, 1939, No. 7977 Convention date, Marct 16, 1938. [Class 110 (i)] A submersible pump unit comprises an electric motor 5 driving a pump 7, the motor being surrounded by oil in a container 4. The pump delivers liquid 2 from an inlet 10 up an annular pressure space 10a to ar outlet 14. The leads 11 to the motor pass out through a pipe 16. Ribs attach the motor 5 to the wall 4 Sealing rings 8 and 9 are provided on the shaft 6
Patent GB-346126-A (GB)
Title: Improvements in and applicable to devices used in playing games
IPC: A63F1/02
Filed: 1930-03-12
Abstract: 346,126. Dice ; trump indicators. ASSOCIATED IVORINE & METAL PRODUCTS, Ltd. and NATHAN, W. A., Richmond Bridge Works, Twickenham, Middlesex. March 12, 1930, No. 8009. [Class 132 (ii).] A cube-shaped body suitable for use as a trump indicator or as a die, comprises six interengaging discs each having a flange extending from the disc at an angle of approximately 45‹, the contiguous portions of the flanges belonging to adjacent discs being secured together by means of a suitable cement or other material serving to secure said parts permanently together. As shown in the form of a trump indicator, the four suits and "no trumps" are marked on five of the discs 1 the remaining disc being used for advertising matter. The discs are assembled with their flanged edges cemented alternatively above and below the adjacent flanges as shown, and the centres of the discs are slightly inset to prevent wearing away of the inscribed matter. Instead of suit markings, dots may be inscribed on the discs. The discs may be made of celluloid, ivorine or metal.
Patent GB-308466-A (GB)
Title: Improvements in golf tees
IPC: A63B57/00
Filed: 1928-12-10
Abstract: 308,466. Acaster, T. H. Dec. 10, 1928. Tees.-In a. golf tee of the kind comprising a weighted body with an horizontally projecting upper member forming an adjustable ball support and a lower projecting member resting on the ground, the adjustment is effected by a sliding piece within a slot extending across the weighted body and bearing against the upper member. The ball-supporting member c is secured to the base a and is adjusted by a sliding member h working in a slot g in the base a from which a lateral member b also projects along the ground. The ball-supporting member c is provided with a leather or similar cup i.
Patent GB-1189564-A (GB)
Title: Electromechanical Oscillator with Rotary Output.
Inventor: CLIFFORD CECIL FRANK
IPC: G04C3/10
Filed: 1968-02-20
Abstract: 1,189,564. Oscillating motors. HORSTMANN CLIFFORD MAGNETICS Ltd. 20 Feb., 1969 [20 Feb., 1968], No. 8184/68. Heading H2A. [Also in Division G3] In an oscillating motor wherein at least one electrically maintained oscillating member, such as a tuning fork, carrying a permanent magnet 15 drives a wheel, e.g. an escape wheel connected to a timing train, the wheel has radial outer spokes 11 and a series of inner apertures 13 defining a wavy magnetic track 14 for co-operation with the magnet 15, the spacing w between the apertures being equal to the width of the spokes, and the ratio between (i) the mean of the aperture width b and the spoke spacing a and (ii) the spacing w, being at least 2. It is stated that increasing values of the above ratio up to 4 produce a linear increase in torque.
Patent GB-714533-A (GB)
Title: Improved seed spacing device
IPC: A01C7/04
Filed: 1952-04-01
Abstract: 714,533. Seed sowers. MADSEN, C., and ROSENSTAND, T. April 1, 1952 [July 9, 1951], No. 8222/52. Class 6 (1) A seed sower comprises a container 1 with a driven disc 3 rotatable within the container and provided with seed engaging holes 7a, 76 co-acting with an outlet 6 in the container base communicating with a seed tube 20 and a wiper 11 above the disc to convey the seed to the holes, wherein the holes have a diameter equal to the diameter of the largest seed in a batch to be sown and a height equal to the smallest seed, and the lower edge of the wiper is disposed a distance above the disc surface equal to the difference between the diameter and height of the holes in the disc. As shown, seed is fed through the holes by means of feed wheels 14, 15. As shown in Fig. 5, the container is detachably connected to a stationary part 24 and the disc 3 is rotated by worm gearing and belt or chain gearing 35 from an auxiliary shaft 27 which is driven from a shaft 32 which drives a feed wheel 23 in a seed hopper 21 which feeds seed to the container 1. The seed tube 20 is preferably made of a plastic substance such as a synthetic resin.
Patent GB-772863-A (GB)
Title: Improvements in or relating to haysweeps or the like load-lifting attachments for tractors
Inventor: BATTEN JAMES DENNE
IPC: A01D87/08
Filed: 1951-04-11
Abstract: 772,863. Hooks. MASSEY-HARRIS-FERGUSON (SALES), Ltd. Nov. 23, 1953 [April 11, 1951], No. 8386/51. Class 89 (2). [Also in Group XXX] A hook 51 used in a hay-sweep actuating - mechanism (see Group XXX), has a chain-retaining spring- ring 52 engaging holes 55 in the hook-shank. The ring is an open one with off-set overlapping ends engaging the respective holes 55, the normal resting position being with the mean plane of the ring perpendicular to the plane of the holes, so that after displacement of the ring to allow entry of a chain-link into the hook, the ring will spring back to the position shown.
Patent GB-309992-A (GB)
Title: Improvements in and relating to the production of carbon
IPC: C09C1/52
Filed: 1929-03-14
Abstract: 309,992. Lewis, G. C. April 19, 1928, [Convention date]. Hydrocarbons. - Free carbon is obtained by incomplete combustion of a gas containing hydrocarbons, substantially the whole of which are those gaseous at ordinary temperatures and pressures and which may contain 3 per cent or 4 per cent but not more than 15 per cent of free hydrogen, to which is added a further amount of free hydrogen. The percentage of free hydrogen added before the gas is burned varies with the percentage of combined hydrogen present, and the quality and quantity of the carbon to be produced, but it will, in general, be 15 to 70 per cent. This free hydrogen can be added in any desired manner, or it may be liberated from the hydrocarbons in the gas by cracking treatment. If the original gas is previously heated under suitable conditions, benzene, toluene, naphthalene, anthracene, &c. will be formed and, if desired, may be separated out in advance of the burner, but, in any case, the percentage of free hydrogen in the residual gas will be increased. The gas may be burnt in contact with a cold surface, or in an atmosphere deficient in combustion-supporting constituents. Specification 309,488 is referred to.
Patent GB-678632-A (GB)
Title: Improvements relating to wave guides
IPC: H01P5/12
Filed: 1950-04-04
Abstract: 678,632. Wave-guides. BRITISH THOMSON-HOUSTON CO., Ltd., VINCE, N., and TAYLOR, H. B. April 3, 1951 [April 4, 1950], No. 8446/50. Class 40 (viii). A T junction between two wave-guides of rectangular cross-section is formed by placing the guides in abutting relation, and removing a wall portion of one of the guides at the junction, impedance matching means being introduced into the fed waveguide. The matching means may consist of two spaced metal rods placed in the fed guide in alignment with the longitudinal axis of the feeding guide. Alternatively as shown, a metal block 5, for example made of brass, is placed against one side of the fed guide 2 aligned with the axis of the feeding guide 1. The side view of the block is shown in Fig. 5. Specification 645,508 is referred to.
Patent GB-326029-A (GB)
Title: Method and apparatus for the production of power
IPC: F03G5/00
Filed: 1929-03-15
Abstract: 326,029. Schwaller, R. A. March 15, 1929. Motors operated by the force of expansion or contraction of liquids by heat or cold. - Relates to motors of the type described in Specification 307,349 in which a volume of liquid b when heated expands and actuates a piston d of a differential system which causes rotation of the crank-shaft m. The liquid b works in a closed circuit comprising the heating chamber a, cooler g, tank r and pump p. The liquid is heated by a jacket a<1> which may be electrically heated, and the valves n. n<1> are opened pericdically to replace the heated liquid by cooled liquid.
Patent GB-863278-A (GB)
Title: Concentration of potash ores
IPC: C01D3/08
Filed: 1958-03-17
Abstract: A process for the preparation of sylvite-containing ores for the wet separation of the potash values comprises subjecting the ore in the final size-reduction stage to a dry impact crushing. The ore may be crushed in a hammer mill and screened, the oversize (+ 10-mesh to 3") being subjected to impact crushing to produce a final size of -10 mesh.  The crushed ore may be pulped with brine, mechanically deslimed, conditioned, and the sylvite recovered by froth flotation. It is stated that less wash water is required resulting in the recovery of that portion of the ore which would have been dissolved in the wash water.  Specification 727,271 and U.S.A. Specification 2,836,297 are referred to.
Patent GB-698703-A (GB)
Title: Improvements in or relating to a method and apparatus for preparing a cellulose board and the resulting product
IPC: D21J1/00
Filed: 1951-04-12
Abstract: 698,703. Wood substitutes. CURTIS COS. Inc. April 12, 1951 [Sept. 14, 1950; Oct. 7, 1950], No. 8523/51. Addition to 670,985. Drawings to Specification. Class 70. The invention of the parent Specification is modified in that after the board is compressed and cooled it is moistened with water to raise the moisture content to at least 6 per cent. The resin is preferably a phenol-formaldehyde, urea formaldehyde, or furfural resin and may be used in a quantity of 5 to 8 per cent. based on the weight of the mixture being moulded:
Patent GB-750466-A (GB)
Title: Method of preparing stuffing box packing material from vegetable fibres, particularly cotton, or synthetic fibres
IPC: F16J15/22
Filed: 1954-03-24
Abstract: 750,466. Stuffing-box packing. ZAGORSKI, J. March 24, 1954, No. 8609/54. Class 122(5) Stuffing-box packing material is made by impregnating vegetable fibres, preferably cotton, or synthetic fibres with a liquid containing a small amount of fatty matter and a solvent therefor, then pressing and drying the material, and then loosening it and mixing it with an inorganic lubricant. The fibres are preferably treated with formaldehyde liquid and dried before being impregnated with the liquid which may contain tallow, lubricating oil, ozokerite, stearin, glycerine, or similar fatty matter or mixtures thereof, and benzine, alcohol or other hydrocarbon compound as a solvent. The dried and loosened fibres are finally mixed in a mixing drum with an inorganic lubricant such as graphite, talc powder, steatite or shale oil or mixtures thereof. The material may be formed into cord packing by filling thin textile hoses with it.