baber/WOPTO huggingface dataset:
Patent GB-916456-A (GB)
Title: New and useful pyrazoline derivatives and a process of making same
IPC: C07D231/50
Filed: 1961-05-31
Abstract: The invention comprises the compounds of the formulae <FORM:0916456/IV (b)/1> and <FORM:0916456/IV (b)/2> together with their preparation by reacting, in the presence of a solvent and in the presence of pyridine as an acid binding agent, 4-amino - 2,3 - dimethyl-1-phenyl-3-pyrazolin-5-one with either p-benzoic acid sulphochloride or benzoyl chloride p-sulphonamide.  Benzoyl chloride p-sulphonamide is obtained by reacting the corresponding acid with thionyl chloride, and p-benzoic acid sulphochloride by the action of chlorosulphonic acid on sodium p-carboxybenzenesulphonate.
Patent GB-800534-A (GB)
Title: A moulding device for the manufacture of containers from plastic materials
IPC: B29C45/14
Filed: 1955-07-07
Abstract: 800,534. Injection-moulding endpieces for collapsible tubes. BASSAN, M. July 7, 1955 [May 2, 1955], No. 19664/55. Class 87(2). A moulding device, in which a rigid body of thermoplastic material, e.g., polyvinyl chloride or polyethylene, is moulded and bonded to a flexible tubular body to form a container, comprises a core assembly 16, a cover 11 adjacent to one end of that assembly, and a flexible sealing ring 13. The tubular body 1 of the container is drawn over the core so that its end extends between the core and the cover, and the sealing ring 13 is then axially compressed between two parts 14, 19 of the core so that by radial expansion of the seal the end of the tubular body is clamped between the core and cover. The end part 19 of the core is complementary in form to the body to be moulded, is slidable axially relatively to the rest of the core, and abuts at one end against a stop 10. Tightening of a screw 20 in a frame 8 causes compression of the sealing ring. A two-part mould 6 mounted in the frame 8 is provided with cavities 9 to receive covers 11 and core parts 19. The thermoplastic material is injected through a common inlet into the mould cavities between the covers 11 and core parts 19, and fuses with the ends of the tubular bodies 1 projecting into those cavities.
Patent GB-838493-A (GB)
Title: Improvements in or relating to pulse radar receivers
Inventor: PARKER ERIC
IPC: G01S7/28
Filed: 1955-07-07
Abstract: 838,493. Electric analogue calculating- apparatus. DECCA RECORD CO. Ltd. Oct. 8, 1956 [July 7, 1955], No. 19737/55. Class 37. [Also in Group XL (c)] The envelope of a pulse-modulated carrier is effectively differentiated by arranging that the frequency response of a carrier amplifier increases as the separation from the carrier frequency increases on at least one side of the carrier. In the pulse radar receiver shown, the I.F. amplifier includes two parallel amplifiers 14, 16 tuned respectively to frequencies on opposite sides of the carrier and such that the response increases by 6 Db. per octave as the separation from the carrier increases and such that the time delay for all frequencies is equal. A further amplifier 15 selects the carrier and supplies it to a demodulator 18 in sufficient amplitude to ensure undistorted demodulation. A single double-tuned amplifier could replace the amplifiers 14 and 16.
Patent GB-645061-A (GB)
Title: Improvements in or relating to methods of producing alpha-naphthoquinones, and the improved alpha-naphthoquinones resulting therefrom
IPC: C07C50/10
Filed: 1947-07-23
Abstract: Naphthalene and beta-substituted naphthalenes are oxidized to the corresponding 1 : 4-quinones in an inert solvent by intensive agitation with an aqueous solution of a hexavalent chromium compound in the presence of a mineral acid.  The solvent is not attacked by the oxidizing agent and does not dissolve it; carbon tetrachloride and benzene are specified.  The chromium compound is preferably sodium dichromate; chromic acid and potassium and ammonium dichromates are also mentioned.  The acid is preferably sulphuric, in 60 to 77 weight per cent concentration, though other acids, e.g. phosphoric, may be used.  The acid is run into a hot mixture of the other components and further heat applied to complete the reaction, agitation being maintained the whole time. The layers are then separated, the solvent distilled off and the quinone crystallized out.  Examples show the preparation of a -naphthoquinone itself and also 2-methyl and 2 : 6-dimethyl-1 : 4-naphthoquinones; the 2 : 3-, 2 : 5-, 2 : 7- and 2 : 8-dimethyl-1 : 4-naphthoquinones are also mentioned.
Patent GB-864751-A (GB)
Title: Improvements relating to control means employing gyroscopes
Inventor: PEAT DEREK
IPC: G01C19/38
Filed: 1956-06-26
Abstract: 864,751. Radar; aerials. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 26, 1957 [June 26, 1956], No. 19816/56. Class 40(7) [Also in Group XX] Control means for aiming a component mounted for rotation about two axes of freedom comprises two gyroscopes mounted on the component so that their spin vectors are mutually cancelling, and having precessional motors for imparting torque to the respective gyroscopes about orthogonal axes. The system is shown applied to a guided missile, part of which is shown at 1, which is controlled by a radar system having an aerial 2 with a reflector 3 mounted on a plate 7, which is carried by gimbals 4 on the missile 1. The gimbal axes constitute the pitch axis C and the yaw axis D of the aerial. Two gyroscopes 5, 6, with their spin axes parallel to the axis of the reflector, are mounted on plate 7 in gimbals pivoted on axes A, B parallel with axes C, D respectively. The gyroscopes have torque motors 8, 9 and pick-offs 10, 11, and torque motors 12, 13 act on the gimbals 4. If there is an error between the line of sight of the target and the axis of the reflector about the yaw axis D, an error signal produced by the radar apparatus operates torque motor 8. The torque generated causes gyroscope 5 to precess and turn the aerial about the yaw axis D to reduce the error. The reaction torque on the aerial tends to turn it about the pitch axis C, but this is resisted and effectively prevented by gyroscope 6, which precesses about axis B. Since the spin vectors of the gyroscope are equal and opposite, the torques applied are equal and opposite. Similar considerations apply when the error appears about the axis C. Since the gimbals 4 cannot be entirely frictionless, a torque arises whenever the aerial moves with respect to the missile. The torque will tend to move the aerial, but will be opposed by the reaction torque due to the precession of one or both of the gyroscopes. As a result, the gyroscope spin axes wander from parallelism with the reflector axis, whereupon signals derived from pick-offs 10, 11 actuate torque motors 12, 13 to precess the gyroscopes to restore their spin axes to their original direction.
Patent GB-1084672-A (GB)
Title: Combined mill, mixer and spreader
IPC: A01C3/06
Filed: 1965-05-11
Abstract: 1,084,672. Manure spreaders. G. C. WOOD. May 11, 1965 [May 22, 1964], No. 19839/65. Heading A1D. A manure spreader comprises beater units 17 mounted on a shaft 16 rotatable in a cylindrical container 15. To enable the planes of rotation of the beater members to be shifted longitudinally in the container the shaft 16 is arranged to be reciprocated by means of a cam 27 on the shaft which engages a fixed arm 30. In a modification a cam is operated by a shaft 24 the cam co-operating with a lever which reciprocates the shaft. In a further modification the shaft is reciprocated by means of a hydraulic ram provided with a reversing switch.
Patent GB-516152-A (GB)
Title: Improvements in electrical apparatus comprising at least one thermionic valve and adapted to operate at high frequencies
IPC: H03L1/02
Filed: 1938-07-05
Abstract: 516,152. Valve circuits. GENERAL ELECTRIC CO., Ltd., CHERRY, E. C., and EDWARDS, G. W. July 5, 1938, No. 19915. Drawing to Specification. [Class 40 (v)] Variations of temperature produced by cathode heating during the period of heating up the apparatus change the inter-electrode capacities of valves, which change may detune considerably associated high frequency tuned circuits. This detuning may be neutralized by a condenser with a temperature coefficient opposite sign, connected in parallel with the tuning condenser. The condenser may comprise part of a " dummy " valve, or be so arranged as to be heated by the valve. Specifications 515,872 and 474,522 are referred to.
Patent GB-653038-A (GB)
Title: Improvements in or relating to cotton combing and similar machines
IPC: D01G19/04
Filed: 1948-07-27
Abstract: 653,038. Machinery guards. FARNWORTH ENGINEERING CO., Ltd., and THOMPSON, R. July 27, 1948, No. 20004. [Class 80(iv)] The rear guards for the doffers and cylinders of a cotton combing or like machine are associated with linkage to prevent their being opened while the machine is running, and to prevent starting of the machine while the guards are open. A rotatable rod E extends the whole e length of the machine and carries arms g each of which may be brought over a projection on a guard D. An arm e<SP>1</SP> on the rod E is linked to an arm b<SP>3</SP> on a rotatable rod H. A rotatable stop h is secured to the rod H and is adapted to co-operate with a collar a on the setting-on rod A so that clockwise rotation of the rod H to release the guards is prevented when the rod A is in the " ON " position, and also so that if the guard is not locked in the closed position the rod A cannot be moved to the " ON " position. The lever B is shown connected to a sliding rod F associated with a hydraulic device as described in Specification 575,655, thereby preventing release of the guard D until the rotating parts of the machine have come to rest.
Patent GB-353220-A (GB)
Title: Improvements in or relating to photo-electric cell circuits
IPC: H01J40/14
Filed: 1930-07-02
Abstract: 353,220. Valve circuits. VOIGT, P. G. A. H., 53, Church Road, Upper Norwood, London. July 2, 1930, No. 20059. [Class 40 (v).] The polarizing voltage applied to a photo-electric cell D is derived from the voltage drop due to the thermionic current of a valve B through an associated resistance A. The negative end of the circuit comprising the cell and its resistance E is connected to a condenser Hfed through a resistance G, and the positive end to a condenser N fed through a resistance M. The voltage applied to the cell is controlled by altering the tapping-point on the anode resistance A of the valve, Fig. 1 (not shown), by altering the value of the anode resistance, by altering the anode current by adjustment of the grid bias G B, or by connecting the positive side of the cell circuit to a potential divider L. The voltage drop in a decoupling or smoothing circuit A<1> in the anode circuit of the valve is included in the voltage applied to the cell.
Patent GB-1470723-A (GB)
Title: Complex basic zirconium and aluminum salts and their use as  tanning agents
IPC: C14C3/02
Filed: 1975-05-13
Abstract: 1470723 Complex basic zirconium and aluminium salts BASF AG 13 May 1975 [30 May 1974] 20061/75 Heading C2C [Also in Division C6] Water-soluble complex salts of the formula wherein R is a C 1-4  monocarboxylic acid radical, X is Cl or HSO 4 <SP>-</SP>, a and b are independently from 1 to 9, c is from 0 to ((4a+3b)-0À333 (a+b)) and d is from 0À333(a+b) to ((4a+3b)- 0À333(a+b)), provided that c+d is from 0À333 (a + b) to (4a+3b), f is (4a+3b)-(c+d), and e is 2a, may be prepared by mixing appropriate starting materials in amounts which fall within the limits implied by the above empirical formula and by adjusting the dilution of the mixture so that the components are not precipitated out. The starting material for the zirconium constituent may be a zirconyl sulphonic acid which, optionally, may be reacted with an alkali metal salt of an organic acid or with various alkaline reagents to give complex basic acido-sulphato-zirconium salts. Suitable starting materials for providing the aluminium constitutent are aluminium chloride or sulphate, alum and their reaction products with alkali metal salts of organic acids or other alkaline reagents. Suitable monocarboxylic acid radicals may be derived from optionally substituted saturated or unsaturated acids such as formic, acetic, propionic, lactic, acrylic or methacrylic. The products may be used in the tanning of hides and skins.
Patent GB-993969-A (GB)
Title: Improvements in electrical discharge tubes
IPC: H01J17/54
Filed: 1961-06-02
Abstract: 993,969. Fluorescent discharge lamps; thermionic cathode tubes. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. June 2, 1961 [June 15, 1960], No. 20068/61. Heading H1D. An electrical discharge tube, e.g. a fluorescent discharge lamp or a discharge tube used in telephone circuits, is provided with a mesh grid at a floating potential and movable to be located in the vicinity of the boundary between the space charge region and the plasma region formed when there is a potential difference across the tube, in order to reduce flickers and noises. In the construction shown in Figs. 1 and 2, the discharge tube 6 includes a cathode 7, anode 8, and mesh grids 9 fitted with nickel sliding tubes 10 movable by a magnet. The curvatures of the anode 8 and grids 9 are made to conform to the potential distribution at their locations within the tube which can be calculated or found by experiment. The grids can be of metal or an insulator and can be of different pitch and size. The grids may totally or partially enclose the electrodes. The discharge tube can contain helium at up to 4 mms. pressure.
Patent GB-924425-A (GB)
Title: Improvements in or relating to laminated shoe heels
Inventor: COX HERBERT FRANK
IPC: A43B21/00
Filed: 1960-06-08
Abstract: 924,425. Laminated heels. STRODE COMPONENTS Ltd. June 8, 1961 [June 8, 1960], No. 20076/60. Addition to 876,246. Classes 17 (2) and 17 (3). A laminated heel of fibrous sheet material 1 such as leather or fibreboard is provided with a forked aperture to receive moulded plastic material to form dowels 2 and 2A (as disclosed in the parent Specification), the upper ends having enlarged heads 3, 3A, the lower end terminating in a pad 12 to which a separate top-piece can be bonded, adhesively secured or held by one or more pegs 14 formed integral with the pad during moulding. Plastic material may extend around the side of the top-piece to form a sheath 12A, in which case the peg 14 may be omitted by tapering the sides of the top-piece.
Patent GB-431966-A (GB)
Title: Improvements in or relating to the manufacture of ethylene oxide
Filed: 1934-07-09
Abstract: Ethylene oxide is produced by catalytic oxidation of ethylene in presence of an inert gas and in the absence of water.  The inert gas may be at least 50 per cent of the mixture.  In an example, a mixture of ethylene, air, and carbon dioxide is passed over silver (which may be activated by gold or copper or both) at 300--400 DEG  C., and the ethylene oxide may be recovered by adsorption in active carbon or solution in water.  In another example the process is effected at pressures up to 50 atmospheres.
Patent GB-315565-A (GB)
Title: An improved tilting platform for use on trucks
IPC: B60P1/24
Filed: 1928-07-11
Abstract: 315,565. Boase, W. H. July 11, 1928. Tipping wagons in which the tipping-apparatus may be readily stripped from the truck, have the rails 2 on which the tilting-platform 11 rolls mounted on a sleeper frame 3 which is detachably secured to the body of the truck by means of a yoke. This yoke is flanged at one end 5 for engaging round the side member 6 of the chassis and the other end is provided with a clip 7 which fits round the opposite side member of the chassis. The tilting-platform is fitted with channel irons 12 curved at one side for rolling on the rails 2. Pins 13 are fitted in the crowns of the rails, which pins engage slots in the curved rockers and so prevent slipping of the rocker along the rail.
Patent GB-243432-A (GB)
Title: Improvements in and connected with adjustments for the magnets in telephone receivers and the like
IPC: H04R13/02
Filed: 1924-08-26
Abstract: 243,432. Midgley, A. H. Aug. 26, 1924. Drawings to Specification. Magnetic instruments.-A pivotally adjustable magnet structure for a telephone receiver, more particularly of the loud-speaker type, has its pole pieces disposed in such a manner that the direction of the flux is at right angles to the axis of the pivotal support and in the direction of the length of the magnet structure. The magnet structure is identical with that described in Specification 243,431, but the claims relate to the above and certain subordinate features.
Patent GB-903527-A (GB)
Title: Improved ladder anti-slip device
Inventor: JACKSON GEORGE ROY
IPC: E06C7/42
Filed: 1960-06-09
Abstract: 903,527. Ladders. SCAFFOLD PRODUCTS (COVENTRY) Ltd. Feb. 20, 1961 [June 9, 1960; Dec. 19, 1960], Nos. 20241/60 and 43522/60. Class 20 (2). An anti-slip device for a ladder comprises a leg 35 held in an angularly-adjustable clamp 34 on a plate 31 secured to the ladder 33 so that the leg may be turned into the operative position at an angle to the ladder or the inoperative position parallel to the ladder. The leg or clamp engages inclined sides of stops 40, 40a in the operative position and a flat face 54 of the stop 40a in the inoperative position. The bolt 37 is the pivot for the clamp 34 and also clamps the clamp on to the leg. The modification shown in Fig. 6 is adaptable for both sides of a ladder by placing the bolt 37 in either of two holes in the plate 31, the stops 40, 40a each having two inclined sides 52, 53 to provide an engagement for the leg or clamp in the two alternative arrangements. The face of the plate 31 engaging the ladder may be ribbed or it may have pads with inclined faces to cause the leg to splay outwardly.
Patent GB-1172331-A (GB)
Title: Improvements in or relating to Methods and Apparatus for Testing the Surface Roughness of a Web
Inventor: ALLEN ROGER ANTHONY
IPC: G01B5/28
Filed: 1968-04-29
Abstract: 1,172,331. Measuring surface roughness; photo-electric thickness measuring. WIGGINS TEAPE RESEARCH & DEVELOPMENT Ltd. April 29, 1968, No.20248/68. Addition to 1,076,691. Headings G1A, G1M and G1N. In a modification of the device for testing the surface roughness of a paper web described in Specification 1,076,691 the pair of detecting rollers are mutually offset in the direction transverse to the direction of movement of the web, thereby facilitating the detection of long, longitudinal wrinkles and allowing the width of the web to be covered with fewer detectors.
Patent GB-1157399-A (GB)
Title: Magnet Device
IPC: A47G29/00
Filed: 1968-04-30
Abstract: 1,157,399. Electric battery lamps. UNION CARBIDE CORP. 30 April, 1968 [12 Jan., 1968], No. 20328/68. Heading F4R. [Also in Division H1] . A battery torch is detachably secured to a surface of magnetic material by a magnet assembly 44 which comprises a magnet 56 having polepieces 48 and a leaf spring 60 arranged so that the polepieces 48 are normally held in a retracted position within the torch by the spring 60 but on approach to a surface of magnetic material the magnetic force of attraction exceeds the spring force so that the magnet and polepieces move to a position in which the polepieces protrude through slots in the body of the torch and contact the surface to support the torch. The torch is detached by pulling it free from the surface and the polepieces are retracted by the spring 60. The torch is provided with a slide switch 34 and a compression spring 32 is located between the batteries 12 and a terminal 30 of the bulb holder 26. .
Patent GB-205881-A (GB)
Title: Improvements in or relating to means for obtaining stereoscopic kinematograph pictures
IPC: G03B35/00
Filed: 1922-07-25
Abstract: 205,881. Wright, E. H. July 25, 1922. Addition to 192,104. Cameras, stereoscopic; lens fittings.-In apparatus for producing images having a relief effect, as described in the parent Specification, the movable gate is replaced by a fixed gate, and a reflecting system rotating with the lens is provided. As shown, the lens 1 is rotatable about a horizontal axis 2, and its carrier 4 has a double-reflecting prism 3 attached thereto. According to the Provisional Specification, means for adjusting the relative positions of the photographic base and the lens axis may be provided, so as to enable the images from different view points to be superimposed.
Patent GB-517868-A (GB)
Title: Improvements in or relating to sliver-roll-forming machines
IPC: D01G15/62
Filed: 1938-07-09
Abstract: 517,868. Sliver-balling apparatus. FRASER & SONS, Ltd., D. and FRASER, G. S. July 9, 1938, Nos. 20373 and 34851. [Class 120 (i)] In a sliver ball or roll-forming apparatus in which the ball is formed by one or more pressing rollers which may or may not be the driving roller or rollers, the sliver is fed at a constant rate and the arbor or roll-centring member is driven independently of the roll so that its speed can be progressively changed relatively to the rate of feed of the sliver to maintain a compact roll. As shown the arbor A on which the roll is to be wound is carried by one or a pair of counterbalanced levers A<1> pivoted on a shaft A<2> which carries a sprocket C' geared to a sprocket C<1> on the shaft of the delivery roller C and the sprocket C<3> carries a gear-wheel C<4> meshing with a gear wheel D<1> carrying one element of a friction clutch, the other element D<2> of which is connected by a sprocket chain D<3> with a sprocket D' on the roll-centring member to which the arbor A is attached. The roll on the arbor A is pressed and driven by a roller B and the arbor is driven faster than the roll at a varying speed depending on the diameter of the roll, the clutch allowing slip.
Patent GB-205244-A (GB)
Title: Improvements relating to fluid-operated percussive tools
IPC: B25D9/18
Filed: 1922-07-26
Abstract: 205,244. St. Stephens, R. de H., and Climax Rock Drill & Engineering Works, Ltd. July 26, 1922. Fluid-actuated gears; slide valves, cylindrical and piston. - To provide piston cushioning to prevent damage due to an abnormal forward stroke, the cylinder forward exhaust takes place only through piston-controlled main and auxiliary ports. The supply to the cylinder-ends through ports 9, 14, 16, 10, 15, 17 respectively is controlled by a four-groove valve 28 to the ends of which fluid is constantly fed by ports 22 in the end collars, and is exhausted alternately therefrom through main-piston controlled auxiliary ports 26, 27. The cylinder-ends have a main exhaust through piston-controlled ports 18, 19, and the rear cylinder-end has an auxiliary valve controlled exhaust through passages 17, 15, 13 and 11. In some cases excessive forward compression is prevented by an exhaust passage 46 which is controlled by the piston during the forward stroke, and put out of communication with the exhaust during the rear stroke by the valve.