baber/WOPTO huggingface dataset:
Patent GB-294230-A (GB)
Abstract: 294,230. Soc. des MagnÚtos R. B. July 22, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Systems, electric. - In ignition systems in which current is supplied from an external source A to the primary winding P of a magneto, one or more selfinductances B are interposed between the currentsource and the magneto. Two such inductances may be combined with a double interrupter on the magneto, the interruptions occurring alternately. The magneto with its inductance may be arranged in parallel with a starting motor H, and a solenoid F, Fig. 6, may be used to throw these devices into circuit; or the self-inductance may itself constitute the coil of a solenoid which closes the starting-motor circuit.
Patent GB-866985-A (GB)
Title: Multiple purpose hydraulic valve
IPC: F16K31/40
Filed: 1957-09-19
Abstract: 866,985. Fluid-pressure servomotor control systems. LEAR Inc. Sept. 19, 1957 [Oct. 9, 1956], No. 29474/57. Class 135. A control valve for an hydraulically operable device (not disclosed) is provided with means for receiving low force level electrical input signals and means for receiving high force level mechanical input signals, the hydraulic output to the operable device being the algebraic sum of both inputs. Electrical input signals are fed to a torque motor 50 which actuates a rod 48 to rock a lever 36 about a fulcrum point 40. Movement of the lever 36 imparts an axial movement to a pilot valve 22 by means of a rod .34., The pilot valve 22 is arranged to control a slave valve 72 in the following manner. High-pressure hydraulic fluid from a source of supply enters the valve casing at port 124 with a return line from the casing via port 122. The device to be operated is controlled by fluid flow through ports 121 and 123. From the port 124 high-pressure fluid passes to the space surrounding the shank 82 of the slave valve 72. Further fluid passes through the internal passage 122 to the left-hand end of the slave valve and through port 108 to the space surrounding the shank 32 of the pilot valve 22. On the pilot valve being moved to the left high-pressure fluid in the space surrounding the shank 32 enters port 117 and flows to the right-hand end of the slave valve 72. Due to the right-hand end of the slave valve having a larger area than the left-hand end the valve will move to the left. This movement through a spring 88 causes the lever 36 to rotate about its fulcrum point to restore the pilot valve 22 to its neutral position again. In the new position assumed by the slave valve 72 the port 123 will be exposed to high-pressure fluid in the space surrounding the shank 82 and the port 121 will be placed in communication with the return port 122. Thus a flow of fluid to the operable device will be established proportional to the displacement of the slave valve. The high force level input signal is fed into the valve by displacement of the sleeve valve 64 which; assuming that the slave valve is in the position shown in the figure will direct high pressure fluid through port 123 when moved to the right and through port 121 when moved to the left. Movement of both the slave valve 72 under an electrical signal and the sleeve valve 64 under a mechanical signal will cause a flow of highpressure fluid proportional to the algebraic sum of the two input signals. Both inputs may be electrical or both may be meehanical.
Patent GB-1095674-A (GB)
Title: Improvements in buffers or energy absorbers
Inventor: BAKER JOHN FLEETWOOD
IPC: E02B3/26
Filed: 1965-07-12
Abstract: 1,095,674. Marine fenders. CAMBRIDGE FENDER & ENGINEERING CO. Ltd. July 12, 1966 [July 12, 1965; Jan. 14, 1966], Nos. 29475/65 and 1953/66. Heading B7S. [Also in Division F2] A buffer includes one or more steel torsion bars which absorb energy by being deformed beyond their yield point and is arranged to return to its original position after deflection. The embodiments described are fenders, that in Fig. 1 comprising a rigid framework A, against which a ship bears when berthing, the framework being pivoted at its lower end C, its upper end being carried by torque arms B, D connected through ratchets or link and cam devices to long vertical torsion bars E, F arranged to rotate about journals H, I in a plate J fixed to the jetty G, with their lower ends fixed against rotation in a plate K attached to the jetty. A ship coming alongside moves the frame A inwards towards the jetty, thus rotating the torque arms B, D and winding up the torsion bars E, F which deform beyond their yield point. As the ship moves away the torsion bars unwind elastically over a certain range after which the ratchets or link and cam devices overrun to allow the frame to return to its original position under its own weight (if the frame is initially inclined outwards) or other means which are provided to urge the frame to its initial position.
Patent GB-636426-A (GB)
Title: Improvements in rock drill bits and in the method of their manufacture
IPC: E21B10/56
Filed: 1947-11-05
Abstract: 636,426. Percussive drills. MALHERBE, J. A. S. Nov. 5, 1947, No. 29561. Convention date, Dec. 27, 1946. [Class 124] True cylindrical recesses are formed in the face of a drill bit and cylindrical flat-based slugs of hard material are inserted therein, the flat bases of the slugs bottoming on the bases of the recesses and the tops of the slugs projecting from the recesses and shaped to form cutting edges. As shown, three slugs 1 may be fitted into recesses 4 drilled along a diameter of the bit, the two outer slugs being larger than the inner and all three held in position by brazing metal. The bottom peripheral edges of slugs and recesses may be radiused. The slugs may all be of equal size and a space left between two to allow a clearing hole to open at the end of the bit, Fig. III (not shown). In a further modification, Fig. V (not shown), the outer slugs may be fitted at an angle to the axis of the bit to protect the sides of the bit against excessive wear. The Specification as open to inspection under Sect. 91 includes also a slug of ovoid form applied to the modification of Fig. III (not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-805524-A (GB)
Title: Improvements in or relating to local anesthetic compositions
IPC: A61K31/16
Filed: 1956-09-27
Abstract: Therapeutic compositions, useful as local an sthetic agents, comprise an aqueous solution containing, in synergistic combination, a soluble procaine salt and a soluble butethamine salt, so proportioned that there is present in the mixture one to three units of weight of procaine per unit weight of butethamine. The salts used are those with mineral acids or with water-soluble organic carboxylic acids, but preferably the hydrochlorides.  The compositions, which are said to be less toxic than compositions containing the equivalent concentrations of the individual components separately, by virtue of their ability to migrate into surrounding tissue near the situs of injection, may be used for infiltration an s-thesia rather than only nerve-block an sthesia as known hitherto with preparations of procaine or butethamine.  The results of toxicity tests disclosed, indicate that a combination of 2 per cent procaine hydrochloride with 1 per cent or 1.25 per cent butethamine hydrochloride for subcutaneous injection to white mice, produces a toxicity indistinguishable from a 2 per cent procaine hydrochloride solution alone yet gives an an sthetic para equivalent to a 3 1/3 per cent or a 3.6 per cent procaine hydrochloride solution, respectively. Preferred compositions contain the butethamine salt in an amount within the range of 0.25 to 2 per cent by weight and the procaine salt in an amount substantially equal to 2 per cent by weight, based on the total weight of the solution.  A vasoconstrictive sympathomimelic amine such as epinephrine, ephidrine, phenylephrine or laevo-arterenol, in an amount less than 0.02 per cent by weight of the solution may also be incorporated in the compositions.
Patent GB-350857-A (GB)
Title: Improvements in or relating to wireless transmitting installations
IPC: H03G7/02
Filed: 1930-10-03
Abstract: 350,857. Wireless transmttiing systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Oct. 3, 1930, No. 29632. Convention date, Oct. 9, 1929. [Class 40 (v).] In order to control automatically the depth of modulation, for instance to prevent microphone " blasting " in transmission, a part of the microphone current is applied to regulate the grid-bias, and therefore the output of a high-frequency amplifier, inserted between an intermediate-frequency generator and a detector valve feeding the carrierwave generator. The main current from the microphone 1 passes through a low-frequency amplifier 4 to a valve 5 which modulates the output from a generating valve 6, of intermediate frequency. The modulated current passes through a high-frequency amplifier 8 to a detector valve 9, the low-frequency output from which is applied through an amplifier 16 to the carrier-wave generator. A part of the microphone current is simultaneously applied through rectifiers 11, 12 and a resistance 13 to the grid of the amplifier 8. This auxiliary bias ensures automatic " gain control of the output from that valve without introducing distortion. In particular it prevents the passage of any excessive current through the detector valve 9 due to occasional " peak " values from the microphone.
Patent GB-1389200-A (GB)
Title: Preparation of group viii metal hydroxides
IPC: C01G51/04
Filed: 1971-06-24
Abstract: 1389200 Group VIII metal hydroxides JOHNSON MATTHEY & CO Ltd 14 June 1972 [24 June 1971] 29644/71 Heading C1A A hydroxide (includes hydrated oxide) of a Group VIII metal is formed by treating a solution of pH 4 to 6 of a compound of the metal in a lower valency state with an peroxydisulphate and then raising the pH of the solution such as to effect precipitation of a hydroxide of the metal in the higher valency state. The cation of the peroxydisulphate and the anion of the metal compound in the lower valency state are preferably chosen so that precipitation of the compound formed by them is avoided. When nickelic hydroxide is being produced, the nickelous compound may be the sulphate and the pH may be raised by the use of NaOH in an amount that is sufficient to provide three hydroxyl groups for each nickel atom. The nickelic hydroxide may be used, optionally with nickel carbonate, to precipitate CO as hydrated oxide from liquors containing both cobalt and nickel salts.
Patent GB-1504008-A (GB)
Title: Apparatus for performing a forging operation
IPC: B21J1/06
Filed: 1975-07-16
Abstract: 1504008 Forging under vacuum UNITED TECHNOLOGIES CORP 16 July 1975 [17 July 1974] 29891/75 Heading B3H Apparatus for performing a forging operation on successive workpieces in a vacuum includes an elongated vacuum chamber 22, 38, a forging press within the chamber, at least one preheat chamber 56, 58, 60 mounted on the vacuum chamber and communicating with it, a loading chamber 54 mounted on the vacuum chamber and communicating with it, a closable gate (62), Fig. 3 (not shown), between the vacuum chamber and the loading chamber and a slide (70), Fig. 3, in the or each preheat chamber movable to position a workpiece on a manipulator longitudinally movable in the vacuum chamber. A workpiece (W), Fig. 3, is placed on a slide (66) in the loading chamber 54, which is then closed and evacuated by a vacuum pump independent of the main pump 136 for the chamber 38. When the pressure in the chambers 54, 38 has been equalized, the gate (62) is raised and the workpiece is moved into alignment with jaws 100, 102 of a workpiece clamp on a carriage 86. The jaws are provided with elements 114 which grip the workpiece and lift it clear of the carriage (66). This carriage is withdrawn, the slide (70) is advanced from the preheat chamber 56 and the workpiece is lowered on to it. The slider (70) is then withdrawn into the chamber 56 where the workpiece is heated. Meanwhile another workpiece is placed in the chamber 54 for transfer into the preheat chamber 58. By the time the preheat chamber 60 has been loaded, the first workpiece is at the required temperature and it is removed from the chamber 56 into alignment with the jaws 100, 102. These lift it from the slide (70) and the carriage 86 is advanced to place the workpiece between forging dies 10, 12 in the vacuum chamber 22. The die 10 is driven downwardly by an hydraulic mechanism 18 after the workpiece clamp has been withdrawn. The forged workpiece is secured by elements 116 of the jaws 100, 102, and the carriage 86 is retracted to place it on the slide (66), which in turn is retracted into the loading chamber 54. The chamber 54 may be loaded and unloaded by placing the workpiece on a hinged platform 142 which is pivotable into alignment with the slide (66). A heating coil (not shown) surrounds the dies 10, 12, and it is movable vertically to allow for insertion of the workpieces. The apparatus is provided with suitable inspection windows to allow for manual control of the various operations.
Patent GB-989460-A (GB)
Title: A ship's gantry crane
IPC: B63B27/12
Filed: 1963-07-29
Abstract: 989,460. Ship's gantry cranes. S. MUNCK. July 29, 1963 [Sept. 12, 1962], No. 29915/63. Heading B8B. A ship's gantry crane which runs on longitudinal rails has jibs 7, Fig. 2, which are swung about pivots 10 by rams 11 and carry rails 8<SP>1</SP> which support a trolley. The jibs are locked in extended position by pins which are pushed through lugs 14 on the jib and main frame 9 by a ram 16. For added strength the lugs 14, Fig. 1, are upstanding. The jibs are supported below by lugs 17 which co-operate with adjustable stops 18.
Patent GB-1005821-A (GB)
Title: New antibiotic compositions
Inventor: ADAMS ARTHUR
Filed: 1962-08-03
Abstract: An aqueous solution of spiramycin adipate is prepared by adding water to a solid mixture of spiramycin and adipic acid particles and agitating the mass at ambient temperature.ALSO:A solid mixture for therapeutic use after dissolution in water comprises spiramycin and adipic acid, the particle size of the solids in the mixture being such that on addition of the mixture to water and agitation at ambient temperature an aqueous solution of spiramycin adipate is obtained within one minute. Equimolecular proportions of spiramycin and adipic acid may be used.  The particle size may be such that all the particles pass through a 40 to 80-mesh B.S.S. sieve.  The amount of water added may be such as to give up to a 30% (w/v) solution of spiramycin adipate.  For mycoplasmosis in turkeys, a 10%-20% (w/v) solution of spiramycin adipate may be administered within 72 hours of formation.
Patent GB-863007-A (GB)
Title: An improved method of and means for use in glazing
IPC: E04D3/08
Filed: 1958-09-20
Abstract: 863,007. Glazing windows. HAWES, H. L. Sept. 21, 1959 [Sept. 20, 1958], No. 30123/58. Class 20(3) In e.g. a greenhouse construction, overlapping glazing panels 151, 152 are secured to end L-shaped and intermediate inverted T- shaped glazing bars 121 by sheet metal double cranked members 14 which fit beneath locating and supporting pegs 13 fitted in holes in the upstanding limbs of the glazing bars. Each securing member 14 comprises limbs 142 and 141 which overlie the upper and lower panels respectively and an intermediate part 143 which abuts the lower edge of the overlapping panel and the corresponding peg 13.
Patent GB-1520748-A (GB)
Title: Process for producing oligomers
IPC: C08F10/00
Filed: 1975-07-17
Abstract: 1520748 Oligomerization of olefines ANIC SpA 17 July 1975 [2 Aug 1974] 30142/75 Heading C3P One or more C3-C12 linear alpha olefines are oligomerized in the presence of (a) an organoaluminium compound and (b) a compound XY where X and Y are chosen from Cl, Br, F and I, a mixture of the olefine(s) and (a) initially at a temperature of 14 to 25 being mixed with (b) dissolved in a cooled solvent such that the temperature does not exceed 35‹ C. during the oligomerization. The product oligomer may be hydrogenated. In the examples butene-1 is polymerized in pentane using AlEt2Cl, AlEtCl2, AlEt3 or AlEt1À5Cl1À5 as (a) and Cl2, ICl or IBr as (b). Reference has been directed by the Comptroller to Specification 1,362,295.
Patent GB-1107808-A (GB)
Title: Adjustable ratio gearing
IPC: F16H3/36
Filed: 1966-07-05
Abstract: 1,107,808. Multiple tariff electric meters. LANDIS & GYR A.G. July 5, 1966 [July 9, 1965], No. 30173 /66. Heading G1Q. [Also in Division F2] In a change speed gear for setting the tariff in an excess consumption electricity meter wherein an axially slidable and laterally movable idler 10 in permanent mesh with an output pinion 13 is selectively engaged with stepped pinions of a driving cone 3, closely spaced ratios are provided with a cone 3 made of plastics material by forming the cone in two parts 4, 5 each having stepped pinions which alter uniformly in size and in which the pinion closest in size to a pinion of one part is in the other part. As shown the two parts 4, 5 are mounted back to back and may be integral, whilst in Fig. 3 (not shown) two separate cones are mounted on the input shaft. The pinions of each part differ in size by six teeth which is the minimum difference to permit the cone being withdrawn from a mould. The pinions of one part 5 differ in size by three teeth from the pinions of the other part 4. The cones may be hollow and may have strengthening ribs (15).
Patent GB-384409-A (GB)
Title: Improved process and apparatus for treating electric light bulbs for improved light d
IPC: H01J9/20
Filed: 1931-10-31
Abstract: 384,409. Grinding-tools. CHAMBERS, W. F., 27, St. Ignatius Road, Drumcondra, Dublin. Oct. 31, 1931, No. 30191. [Class 60.] The lower rounded portions of electric incandescent lamp bulbs are provided with a roughened surface by means of an abrasive medium on the inner surface of a cup-shaped apparatus into which the lower portion of the bulb is pressed. The roughening medium employed may consist of carborundum, carborundum paper or emery paper or the like, which may be mounted upon a resilient surface such as rubber or sponge rubber, or the lamp may be resiliently mounted during the roughening. The bulb is roughened from its inverted dome or bottom to its largest diameter, above which there may be provided alternate concentric bands of roughened and clear glass, the roughened bands being applied by any known process. The clear glass bands may be coloured with either uniform or different transparent colouring materials. As shown in Fig. 2, the alternate bands 6, 7 arranged above the greatest diameter 2 are inclined thereto to produce an upward diffusion of light. The grinding apparatus comprises a hollow cupshaped receptacle 8, Fig. 3, provided with a lining-surface 10 of rubber upon which the grinding-medium 9 is secured. A shank 13 on the rear portion of the cup 8 is held within a socket 16 containing a helical compression spring 17 to provide a resilient mounting, a transverse retaining-pin 14 on the shank 13 being located in longitudinal slots 15 in the socket. A resilient support for the lamp bulb may be provided by a helical spring 12 in the mounting socket 11.
Patent GB-986885-A (GB)
Title: Spectroscopic apparatus
IPC: G01J3/36
Filed: 1961-08-22
Abstract: 986,885. Photo-electric spectrometers. BAIRD-ATOMIC Inc. Aug.22, 1961 [Oct.27, 1960], No. 30264/61. Heading G1A. [Also in Division G3] In spectroscopic apparatus, deviations from alignment between various light components produced, and the means for reading them, are automatically corrected by servo-systems controlling the orientation of the components and the distance of their source from the reading means. Light from a sample under test 14, Fig. 1, produced by forming an electric arc, passes through a plate 20 and slit 22 to a dispersion member 26 comprising a curved diffraction grating. Pre-selected portions of the resulting spectrum pass through slits 28 to photomultipliers 30 associated with intensity indicating apparatus 32. A mercury vapour lamp 34 produces two beams alternately at mains frequency, each of which has two light components of different frequency. This radiation from lamp 34 is partially reflected by plate 20 and passes through slit 22 to diffraction grating 26. The two beams of one frequency band are directed through offset slits 40 to a photomultiplier 78 the output of which controls through valve amplifiers 88, 90, 92 a two phase servomotor 36 rotating a deflection plate 24 to maintain equal amounts of light through slits 40. Misalignment of light components from sample 14 as a whole relative to slits 28, e.g. due to ambient temperature effects, is thus eliminated. The possibility of misalignment due to relative shift between the component beams is eliminated by the two beams of the other frequency band from lamp 34, which are directed by the grating 26 through offset slits 41 to a photomultiplier 112 the output of which controls through valve amplifiers 116, 118, 120, a second two-phase servomotor 62 moving diffraction grating 26 towards or away from slits 28 to maintain equal amounts of light through slits 41.
Patent GB-1185246-A (GB)
Title: Dehydrogenation Cyclisation of Hydrocarbons
Inventor: NOWAK SIEGFRIED
IPC: C07C5/41
Filed: 1967-07-03
Abstract: 1,185,246. Dehydrogenation catalysts. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. 3 July, 1967, No. 30566/67. Headilng B1E. [Also in Division C5] Dehydrogenation catalysts comprise 10-20% CrO 3 , 1-5% SiO 2 , 2-10% alkali metal oxide and 60-90% A120 3 , the ratio of SiO 2  to alkali metal oxide being 1:2 to 1:4. After use the catalyst may be regenerated by impregnation with aqueous KOH, NaOH, K 2 Cr 2 O 7 , CrO 3  and/or KAlO 2  in an amount which corresponds to ca. 50% bulk volume, drying at 100‹C, calcining and retaining the constituents within the limits set forth above.
Patent GB-800524-A (GB)
Title: Improvements in and relating to rotary compressors of the axial flow type
IPC: F01D5/06
Filed: 1956-10-08
Abstract: 800,524. Securing together compressor rotors. SVENSKA TURBINSFABRIKS AKTIEBOLAGET LJUNGSTROM. Oct. 8, 1956 [Nov. 23, 1955], No. 30573/56. Class 80 (2). [Also in Group XXVI] An axial-flow compressor rotor comprises two units each comprising blade-carrying discs 2 and spacer rings 3, 4 which are clamped together by a hollow tie-bolt 5 threaded at one end into a journal 6 and provided at the other end with a flange engaging a ring 8 bearing against an adjacent disc 2. The two units and a spacer sleeve 9 are clamped together by a preferably tubular tie-bolt 10 extending through the hollow tie-bolts 5 and threaded at one end into one journal 6 and engaging the other journal 6 by means of a flange 11. A sleeve 12 may be provided, with axial play but with torque-transmitting engagement with the rings 8. Torquetransmitting pins 13 extend through the whole or a part of each unit. The spacer rings may comprise flanges formed integrally with the  discs 2.