baber/WOPTO huggingface dataset:
Patent GB-898557-A (GB)
Title: Process for the manufacture of terephthalic acid and isophthalic acid
IPC: C07C45/36
Filed: 1958-10-03
Abstract: A process for the manufacture of terephthalic and isophthalic acids from a mixture of para-and meta-diethyl benzenes consists in forming para- and meta-di-acetyl benzenes by oxidation of the said mixture in liquid phase using oxygen or a gas containing oxygen in the presence of an oxidation catalyst such as lead, cobalt or manganese stearate, at increased temperature to form the isomeric di-acetyl benzenes and then separating same into the para- and meta-di-acetyl benzenes and converting each isomer independently by a further oxidation process into terephthalic or isophthalic acid with oxygen in the presence of organic solvents and oxidation catalyst.  The para-di-acetyl benzene crystallises from the meta-diacetyl benzene which is liquid and separation may be effected by a centrifugal or pressure filtration process. Aliphatic or aromatic aldehydes may be used as oxidation initiators.  In the example industrial diethyl benzene is oxidised with oxygen at normal pressure at 110 DEG C.-130 DEG C. in the presence of cobalt stearate, mixed diacetyl benzenes are obtained by fractionating the products, cooled to about 10 DEG C. and separated by filtration into para- and meta-isomers which are then oxidised in the presence of acetic acid, cobalt and manganese acetates and benzaldehyde to tere- and isophthalic acids.
Patent GB-508677-A (GB)
Title: Improvements in electrically-indicating thermometric devices
IPC: G01K5/16
Filed: 1938-11-14
Abstract: 508,677. Electric signalling systems. PIZZALA, J., (trading as SOMALVICO & CO., LONDON). Nov. 14, 1938, No. 31843/37. Drawings to Specification. [Class 40 (i)] In an electrically-indicating thermometer, two resistance wires are arranged lengthwise of the bore of a liquid-in-glass type thermometer, or if the bore is small, one wire only is used ; the second wire passing through the wall of the bore above the bulb to make contact with the liquid. Specifications 5428/95, 23461/06, [both in Class 97], and 27678/09, [Class 97 (iii)], are referred to.
Patent GB-361550-A (GB)
Title: Improvements in the production of profiled rubber articles
IPC: B29C35/00
Filed: 1930-10-24
Abstract: 361,550. Vulcanizing rubber SCHMIDT, O., Schloss Altenberg, Greifenstein-on-Donau, Austria. Oct. 24, 1930, No. 32017. Convention date, Sept. 16. [Class 70.] In the vulcanization of long lengths of rubber in which the rubber is wound on a drum with an interposed profiling matrix, pressure is applied by winding-in an additional layer of material under tension. A sheet of rubber 11, a patterned matrix 12, and a sheet of material 10 held under tension by a brake 8, are wound together on a drum 1, the ends of the sheet being protected by the interposition of wedges 20. The drum is taped and placed in a vulcanizing chamber. As shown, the matrix and tensioning material are separate, but they may be secured together, e.g. a rubber matrix may be vulcanized. to a textile backing. For patterning the rubber sheet on both sides, a matrix may be attached to both sides of the tension material.
Patent GB-1429770-A (GB)
Title: Method and equipment for testing a sonar receiver
IPC: G01S7/52
Filed: 1972-07-07
Abstract: 1429770 Position locating by sound GRASEBY INSTRUMENTS Ltd 6 July 1973 [7 July 1972] 32045/72 Heading H4D For checking a pulsed sonar which includes a plurality of receiving transducers and associated amplifiers, and a receiver affording echo range by timing and bearing by phase analysis, a synthetic echo corresponding to a notional target range and bearing is generated and fed to preselected amplifiers. In the embodiment the synthetic echo generating apparatus is set into operation by a D.C. input pulse applied to terminal 1 which sets a bi-stable 2 to thereby enable a bi-stable 3 and reset a divider 4. Each "sync." pulse from the sonar receiver (i.e. synchronous with pulse transmission, the transmitter not, however, being operative when checking is taking place) on terminal 5 sets a bi-stable 6 and bi-stable 3 is changed over and an output applied on line 7 to reset dividers 8, 9, 10. Decade range setting switches 12, 13 are provided and when a corresponding number of pulses has been received from dividers 9, 10 an output appears on line 14 to cause bi-stable 3 to change over, the ensuing pulse on line 16 triggering monostable 17 which produces a 45 ms. pulse to gate an amplifier 18; the latter receives an input of sonar carrier frequency and its gated output is fed to a switched phasing arrangement 20 to 25. To afford sufficient time for comparison of the sonar receiver output with the preset values a divider 4 and AND gate 26 permits response to five successive "sync." pulses.
Patent GB-1349000-A (GB)
Title: Method of and apparatus for separating material
IPC: B02C18/14
Filed: 1971-07-08
Abstract: 1349000 Upward current classifier; beater mills CONDUX-WERK HERBERT A MERGES KG 8 July 1971 [8 July 1970] 32139/71 Headings B2A and B2H  The lighter or lightest component of a material consisting of two or more components of differing weight is separated from the rest of the material by comminuting and screening the material and allowing the screened material to fall directly through a separating zone in countercurrent to an air stream which carries away the lighter or lightest component. The process may be applied to the separation of the constituents of remnants of floor coverings composed of synthetic material coated with fibrous material, e.g. jute. The process may be carried out in an impeller breaker comprising a housing 2 in which is horizontally mounted a rotor 3 having cutting blades 5 which cooperate with fixed blades 4 carried by a swingable top portion of the housing. The material is fed through an inlet 6 and after comminution passes through a screen 8 and falls through a separation zone in the housing in countercurrent to a stream of air. The latter is produced by air sucked through orifices 7 and a lateral opening 10 by a blower 12. A discharge screw 9 removes the heavier component(s).
Patent GB-174779-A (GB)
Title: Improvements relating to forming or shaping the ends of lead tubes or sleeves and the like
IPC: H02G15/013
Filed: 1920-11-13
Abstract: 174,779. McKenzie, Holland, & Westinghouse Power Signal Co., Ltd., and Raymer, r. J. Nov. 13, 1920. Cupping.-A hand-tool for shaping or tapering down the ends of lead sleeves such as are used in jointing lead - covered electric cables comprises a tubular former 2 constructed with a tapering section 6 and a solid end 3 and fitted with a central mandrel 4. The end sleeve is placed on the former 2, and over the mandrel and the tool is caused to fall repeatedly with its end 10 on a hard surface, whereby the end of the sleeve is forced down the conical annular space to reduce its diameter and thickness. The open end 2 may be fitted with a cap having an internal central mandrel to form a guide for the sleeve.
Patent GB-922353-A (GB)
Title: Improvements in or relating to soil-working implements
IPC: A01B49/02
Filed: 1960-09-20
Abstract: 922,353. Agricultural implements. H. D. PONTON. Sept. 19, 1961 [Sept. 20, 1960], No. 32214/60. Class 6(1). A plough is provided with a soil working unit comprising discs 27 which act upon the earth as it leaves the mouldboard of the plough. The discs 27 are mounted in pairs on attachments 19 which are pivotally mounted on stubs 15 on a frame attached to the outer plough beams 7. The discs are urged towards the ground by adjustable spring 31.
Patent GB-768385-A (GB)
Title: Auxiliary device for the marking or embroidering of textile fabric
IPC: D05C17/00
Filed: 1954-11-08
Abstract: 768,385. Embroidery. BODIN, K. M. Nov. 8, 1954, No. 32268/54. Class 112. A device for use in embroidery or the like comprises a foil or net of water-soluble material bearing a design and adapted to be fastened to the work, e.g. by tacking or pasting. The foil is removed by washing after the design has been embroidered over.
Patent GB-521001-A (GB)
Title: Apparatus for forming or dressing grinding wheels for use in form-grinding operations
IPC: B24B53/065
Filed: 1938-11-08
Abstract: 521,001. Trueing grinding-wheels. COVENTRY GAUGE & TOOL CO., Ltd., WAINWRIGHT, J. E., and HARLEY, S. J. Nov. 8, 1938, No. 32315. [Class 60] Grinding-wheels for use in form grinding, for example for grinding holes used to generate splines, are trued by a tool 2 mounted on a slide 4 movable radially on a wheel or sector 5 geared to a slide 11 carrying a sine bar 7 that engages an abutment 8 to displace the slide and wheel 5 bodily during the rotation of the wheel.
Patent GB-160569-A (GB)
Title: Improvements in electric arc lamps
IPC: H05B31/00
Filed: 1919-12-24
Abstract: 160,569. Boardman, F. R., Boardman, R. V., and Boardman, F. Dec. 24, 1919. Arc lamps.-In an enclosed lamp for photography, the arc is struck-by a clutch h raised by a spring i to an extent determined by an adjustable stop j, the stop and clutch being carried by a manually operated lever k by means of which the clutch can be disengaged and the carbon d fed. A handle n may be provided on the lever. The upper carbon passes through an insulated plate e and sleeve f into the globe a, in the bottom of which is a socket b for the lower carbon. One or more panels may be provided for screening the camera while allowing full illumination of the object photographed. According to the Provisional Specification, the spring i may be replaced by a weight.
Patent GB-205729-A (GB)
Title: Improvements in and relating to air-tight containers or receptacles
IPC: B65D43/04
Filed: 1922-11-28
Abstract: 205,729. Cowell, A. Nov. 28, 1922. Lever lids; closure completed by liquid seal; stoppers with valves.-The mouth of a container is formed with a trough 3, Fig. 1, adapted to contain water &c. to afford a liquid seal for the rim 7 of the cover which fits loosely into it. The trough may be entirely within the wall of the vessel, as shown, or partly within and partly without, or entirely without the wall. A second rim 8 on the lid is adapted to make a tight joint with a part of the container (which may be the inner wall of the trough) when the lid is pressed down. In the form shown in Fig. 5, the edge of the lid is formed with an annular liquid sump 13 adapted to fill the trough through the valve 14. A spring- controlled valve 16 may be provided to obviate suction when the lid is lifted.
Patent GB-977485-A (GB)
Title: Method and apparatus for controlling strip temperature during rolling
Inventor: O'BRIEN JEREMIAH WAGNER
IPC: B21B37/74
Filed: 1962-08-24
Abstract: 977,485. Rolling. UNITED ENGINEERING & FOUNDRY CO. Aug. 23, 1963 [Aug. 24, 1962], No. 32574/62. Heading B3M. [Also in Division G3]  A method of rolling a hot elongated workpiece in a rolling mill train comprises generating a signal representing a desired predetermined temperature for the workpiece, generating a second signal corresponding to the difference between the actual and desired temperature, and varying the speed of the train to vary the heat losses by conduction and radiation to maintain the workpiece temperature substantially at the desired value. An increase, for example, in the speed of the train results in less heat being lost by conduction and radiation, due to the shorter time available to the workpiece for losing heat, and an increased input of heat from the rolls as they roll the workpiece. The temperature of a strip S is measured by pyrometers 30, 31, and 32, whose outputs are fed into an analogue computer which controls the motors 21 of rolling stands 11-16 and also cold water sprays 27 and coiler motors 28. The speeds of the stands are controlled so that the strip temperatures measured by the pyrometers reach predetermined values. An X-ray thickness gauge 33 may be used to give automatic thickness control of the strip. The screwdown for the stands is by means of a motor-driven worm 39 and which actuated a screw 37, the worm being axially movable by a high-speed piston cylinder assembly 42. In order to permit coiling of the free end of the workpiece, the rolling speed of the train is gradually increased from a suitable value. Specifications 942,128 and 952,941 are referred to.
Patent GB-256118-A (GB)
Title: Improvements in and relating to hand braces, and like tools
IPC: B25G3/14
Filed: 1925-12-24
Abstract: 256,118. Shelley, Ltd., R. T., and Lawrence, E. G. Dec. 24, 1925. Hand and breast drills.- Revoluble handles such as the bearing heads of carpenters' braces are fixed on to a serrated sleeve c mounted on the end of the tool, which is reduced at h, Fig. 6. A groove l and spring ring k secure the sleeve.. A ferrule b is mounted and secured on the sleeve and the handle m is fixed by a press over the serrations and into the ferrule.
Patent GB-342335-A (GB)
Title: A new or improved composition of a metal for casting purposes
IPC: C22C37/08
Filed: 1929-10-28
Abstract: Cast iron alloys contain 2,7-3,33 per cent of carbon, 4,35,6 per cent of nickel, 1,6-1,9 per cent of chromium, 1,6-2,5 per cent of silicon, up to 0,14 per cent of sulphur, up to 1 per cent of phosphorus, and 0,5-1,5 per cent of manganese, with or without small amounts of tungsten, cobalt, molybdenum, or vanadium.  The alloys may be heat-treated as described in Specification 342,334.  Specifications 279,414 and 279,415, [both in Class 82 (i), Metals, Extracting &c.], also are referred to.  According to the Provisional Specification, the proportions are somewhat wider.
Patent GB-862907-A (GB)
Title: Improvements in or relating to torque converting apparatus
IPC: F16H25/16
Filed: 1959-09-25
Abstract: 862,907. Gearing for conveying rotary motion; cams. MAROTH, A. M. Sept. 25, 1959, No. 32727/59. Classes 80 (1) and 80 (3). Gearing for conveying the rotation of a driving-shaft 11 to a driven shaft 12 comprises two pairs of undulating face cams 17, 26, 18, 27 which alternately cause oscillating motion of rings 43, 44 surrounding the shaft 12, unidirectional driving means being provided between the rings 43, 44 and the shaft 12. The driving cams 26, 27 have toothed peripheries which mesh with pinions 37, 38 on the driving-shaft 11. The driven cams 17, 18 are mounted on rods 15, 16 which are adapted to slide longitudinally in the housing 10 and are prevented from rotating by lugs 22, 23 engaging keyways 24, 25 in the housing 10. Balls 33, 34, mounted in cages 35, 36, are located between the cam faces of the cam pairs, the cages 35, 36 being driven from pinions 39, 41 on the driving-shaft 11 at half the speed of the driving cams 26, 27. Tapered roller bearings 31, 32 are provided between the driving cams 26, 27 and the supporting walls of the housing 10, respectively. Rollers 49, 51, respectively mounted on the ends of the rods 15, 16, are adapted to engage arms 45, 46 secured to the rings 43, 44, thereby to cause clockwise rotation of the rings 43, 44 on axial movement of the rods 15, 16. Springs 47, 48 effect the return movements of the arms 45, 46. The one-way driving-means between the rings 43, 44 and the driven shaft 12 comprise circumferential rows of sprag members 52 located between the rings 43, 44 and a sleeve 42 secured to the shaft 12. The undulations of the driving face cam of one pair are arranged in such phase relation to the undulations of the driving face cam of the other pair that an operative movement of one cam pair coincides with a return movement of the other cam pair.
Patent GB-768043-A (GB)
Title: Improvements in or relating to the preparation of erythromycin acid addition salts
IPC: C07H17/08
Filed: 1954-11-11
Abstract: Therapeutically useful acid addition salts of erythromycin are prepared by treating an aqueous solution of crude erythromycin salt having a pH of between 8.5 and 11 and a temperature of between 35 DEG C. and 45 DEG  C. with a water-miscible organic solvent in which erythromycin is relatively soluble and an inorganic salt relatively soluble in water whereby an aqueous phase and an organic solvent phase is formed, the erythromycin being salted out from the aqueous phase containing the inorganic salt into the organic solvent phase, separating the organic phase containing the erythromycin substantially free from impurities, adding to the organic solvent phase an acid capable of forming a therapeutically useful salt of erythromycin and recovering the acid addition salt of erythromycin from the organic solvent.  It is preferred that the pH of the aqueous solution of the crude erythromycin salt be pH 8.5, the organic solvent being present in an amount of at least 35 per cent by volume of the aqueous solution and the inorganic salt being present in a concentration of at least 200 grams per litre, the pH being adjusted to pH 9.5 to 10.8 after the addition of the organic solvent and inorganic salt.  To facilitate crystallization of the erythromycin salt, 5 to 10 per cent of water is added to the organic solvent phase; alternatively, a hydrocarbon may be added.  Prior to the addition of the acid, the organic solvent phase consists of a solution of erythromycin base substantially free from impurities. Specified water-miscible solvents are acetone, ethyl alcohol, isopropanol and t-butanol. Specified inorganic salts are sodium chloride, calcium chloride and ammonium sulphate.  The process applies to erythromycin acid addition salts of (a) water-insoluble organic acids such as stearic, caproic, lauric, myristic, palmitic, oleic and lignoceric acids; (b) water-soluble organic acids such as lactobionic, formic, acetic, citric and lactic acids; and (c) inorganic acids such as sulphuric, hydrochloric, phosphoric and nitric acids. Specification 708,159 is referred to.
Patent GB-486094-A (GB)
Title: Improvements in the manufacture and production of butadiene
IPC: C07C5/09
Filed: 1936-11-30
Abstract: Butadiene is made by reduction of vinyl acetylene with solutions of compounds of divalent chromium.  Weakly acid, neutral or ammoniacal solutions may be employed.  Normal or slightly increased temperature may be used, and atmospheric or increased pressure.  The chromic compounds formed may be reduced, e.g. by electrolysis or zinc and acid, and re-used.  This reduction may be effected in the reaction mixture.  In examples, aqueous solutions containing chromic sulphate and excess sulphuric acid are electrolytically reduced and treated with vinyl acetylene in a cycle or until a saturated solution is obtained which is allowed to stand at 25 DEG  C., gas containing butadiene commencing to escape after a short time and further gas after reducing the pressure.
Patent GB-1484804-A (GB)
Title: Key switch system
IPC: G10H1/18
Filed: 1975-08-06
Abstract: 1484804 Keyboards NIPPON GAKKI SEIZO KK 6 Aug 1975 [12 Aug 1974] 32806/75 Heading G4H In a key switch system, the rows of a key switch matrix are scanned sequentially and repetitively to produce outputs on column lines, each column of switches being regarded as a block, a block memory memorizing which column lines produce an output (or outputs), block read-out means connected to the block memory generating in one scanning cycle after another respective block data consisting of one pulse per scanning cycle occupying a time slot indicating a block to which a key switch which is "on" belongs, data generating means responding to the block read-out means and the column lines. The block read-out means comprises a shift register which holds a bit for each block to indicate whether it contains any "on" key switch or not. The shift register recirculates once per scanning cycle, and each circulation, the bit for a respective block containing at least one "on" key switch is deleted and passed as a time-significant "block" pulse into another shift register, the contents of which are passed in parallel via another store to gate the respective column line of the matrix to feed the data generating means. Each pulse in this column line output represents by its time position the identity of an "on" key switch in its block. This identity and the block identity are digitized by gating out a clock-driven counter, and each such pair of digitized identities (representing an "on" key switch) is stored in the first empty slot in a recirculating shift register memory (provided it is not present already, ascertained by comparison with the memory contents). The system may be used for selection of tones, tone colour, pitch, volume in an electronic musical instrument, or for computer input.
Patent GB-465257-A (GB)
Title: A device for the introduction of material to be rolled between the rolls of a rolling mill
IPC: B21B39/08
Filed: 1936-12-02
Abstract: 465,257. Rolling. KRUPP GRUSONWERK AKT.-GES., F. Dec. 2, 1936, No. 33102. Convention date, Dec. 11, 1935. [Class 83 (iv)] A rolling-mill 1 is provided on each.side with work tensioning brakes A, B which can also be moved toward the mill to push a free end of the work therein. The brakes A, B have wormadjusted friction blocks 3 raised or lowered as required to free or to grip the work, and are coupled by racks and pinions 6, 6<1>, 12, 18 to a piston 15. When, say, the brake B is to introduce the work, its friction block 3 is lowered to grip the work while the brake A is opened, the piston 15 is actuated to the right whereby both B and A are moved to the right, B pushing the work into the rolls. The rack pinion shafts 11 may have couplings 20 to detach the drive movement from one or the other pushers if desired.
Patent GB-1512454-A (GB)
Title: Process for dyeing wet-spun aromatic polyamides in gel form
IPC: D01F6/60
Filed: 1975-08-08
Abstract: 1512454 Dyeing wet-spun aromatic polyamides BAYER AG 8 Aug 1975 [10 Aug 1974] 33157/75 Heading D1B Wet-spun filaments of fully aromatic polyamides, optionally containing heterocyclic groups, are dyed before, during or after stretching, by passing through an aqueous dyebath containing at least one cationic or anionic water-soluble dye. The aqueous dyebath preferably contains 0.01 to 5% of dissolved dye and the dyebath temperature is 20-100C; the dyebath may also contain 1-40% of a polar organic solvent, particularly dimethyl formamide, dimethyl acetamide, N-methyl pyrrolidone, or hexamethyl phosphoric acid tris-amide. Polyamides preferred are poly-m-phenylene isophthalamide or the heterocyclic polymer derived from isophthalic acid dichloride and 3-(p-aminophenyl)-7-amino-2, 4-(1H, 3H)- quinazolinedione.
Patent GB-1462409-A (GB)
Title: Blind rivet assemblies
IPC: F16B19/10
Filed: 1974-07-26
Abstract: 1462409 Riveting MECANO-SIMMONDS GmbH 26 July 1974 [3 Aug 1973] 33208/74 Heading B3U [Also in Division F2] A blind rivet 1 and a setting mandrel 4 are moulded in one piece from a plastics material, the rivet having a head 2 and a tubular shank 3, and the mandrel having a stem 5 of substantially smaller diameter than the rivet shank bore and a head 6 of greater diameter than said bore. The rivet is set by drawing the mandrel head 6 into the shank 3 to form a snap head 10, the stem 5 breaking away from the head 6 at a neck 7 after setting. The mandrel head 6 may be spherical or frusto-conical with a partspherical end face 6b.
Patent GB-383751-A (GB)
Title: Improvements in devices for making joints in pipes or connections containing gases or fluids under pressure
IPC: F16L41/06
Filed: 1931-12-01
Abstract: 383,751. Pipe joints. RUSCOE & CO., Ltd., J. and KENYON, G. H., Albion Works, Hyde, Cheshire. Dec. 1, 1931, No. 33231. [Class 99 (i).] In connecting a branch pipe to a main a sleeve D is inserted in the bracket B encircling the main A and is pressed against the surface of the main with or without interposed packing d<1> by the flange E of the branch pipe or the drilling tool.