baber/WOPTO huggingface dataset:
Patent GB-1423659-A (GB)
Title: Olefine polymerisation process
IPC: C07F9/572
Filed: 1973-02-19
Abstract: 1423659 Preparation of phosphoramidic compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 29 May 1973 [9 June 1972 7 July 1972 19 Feb 1973] 31884/72 and 7985/73 Divided out of 1423658 Heading C2P [Also in Division C3] Phosphorus compounds of the formulµ below, together with their preparation and use as Ziegler catalyst components (see Division C3), are described. The compounds have the formula (c) R<SP>11</SP> 2 P(Q) a XP(Q) a R<SP>11</SP> 2  wherein R<SP>11</SP> is halogen, hydrocarbyl, -NR<SP>111</SP> 2  -OR<SP>111</SP>, a heterocyclic group, a group  (E-Z-G), or both groups R<SP>11</SP> together form a group of the formula R<SP>111</SP> is a hydrocarbyl group, X is -O-, -NR<SP>1111</SP>, -E(CH 2 ) m E- or a group of the formula R<SP>1111</SP> is hydrogen or R<SP>111</SP>, each L is a bivalent hydrocarbyl radical, each E is -O-, -S-, or -NR<SP>111</SP>, Q is oxygen or sulphur, Z is a bivalent hydrocarbyl radical, a is 0 or 1, and m is an integer. The compounds are obtained by reaction of compounds of the formula with a compound (t) R<SP>11</SP> 2 P(Q) a M where M is the group -OR<SP>111</SP> in one compound and a halogen atom in the other compound, or by reaction of a compound (x) R<SP>11</SP> 2 P(O)Ha with a compound (y) (RN<SP>v</SP>H) 2 CO wherein R<SP>v</SP> is an alkyl group. Examples of these procedures are given to prepare the following specific compounds. The preparation of bis-pyrrolidinochlorophosphine oxide by reacting pyrrolidine with POCl 3  is also described.
Patent GB-106166-A (GB)
Title: Improvements in Emery and like Knife Cleaning Blocks.
Inventor: HOLLAND JAMES
IPC: A47L21/04
Filed: 1916-06-07
Abstract: 106,166. Holland, J. June 7, 1916. Knives, cleaning and polishing.-Emery and like blocks for cleaning knives and metal consist of a body of emery or other abrasive material in which cork, wood, or other absorbent plugs are inserted during moulding. The cork plug b may extend completely or partially through the material and be secured therein by grooves &c. as shown in Fig. 2. In a modification, the plugs may be replaced by cork sides held in position by dovetailed projections.
Patent GB-641311-A (GB)
Title: Improvements in or relating to the heat treatment of high speed steel cutting tools
Filed: 1948-03-18
Abstract: A tool made entirely of high speed steel is hardened and at least the cutting portion heated to 600 DEG  to 650 DEG C and quenched in air. The tool may be heated to 1300 DEG C and quenched and the end remote from the cutting edge heated to 650 DEG -700 DEG C so that the cutting edge is heated by conduction, finally being quenched by an air blast.  In dressing, the tool is annealed, dressed, hardened and finally tempered as above.
Patent GB-492660-A (GB)
Title: Improvements in or relating to the manufacture of complex nicotine products and of insecticidal and fungicidal preparations comprising the same
IPC: A01N65/38
Filed: 1937-03-20
Abstract: Complex compounds containing nicotine and copper are prepared by interaction in aqueous solution of nicotine or a nicotine salt with a soluble stable copper salt and a third compound, preferably a cyanide, thiocyanate, selenocyanate or iodide, capable of reacting with the copper salt.  The products, which precipitate at ordinary temperature from the aqueous solution, are stable in the air and relatively water-insoluble; by adding soluble salts of mercury, zinc, tin, cobalt or nickel, these metals may be incorporated in the complexes.  The products may be made up into insecticidal and fungicidal preparations by mixing them with, or co-precipitating them upon, solid diluents, fillers or other insecticides or fungicides, e.g. lead arsenate, Bordeaux mixture, cuprous oxide or derris preparations, or by the addition of a liquid diluent or dispersing agent which may itself have insecticidal or fungicidal properties. Thus, sulphite lye may be mixed with 1/8 to 2 per cent of its weight of the nicotine-copper complex; for use as a spray solution it is diluted with water until 2 to 8 ozs. nicotine are present per 100 gallons. In examples, (1) an aqueous copper sulphate solution is poured into a solution of nicotine and sodium cyanide, and the green flocculent precipitate filtered off and dried; (2) nicotine is added to a solution of copper sulphate and a solution of sodium thiocyanate stirred in until precipitation is complete; the precipitate dries to a chocolate-coloured powder; (3) an aqueous solution of copper sulphate is added to a solution of nicotine and potassium iodide, and the precipitate dried to brown granules; (4) a solution containing copper sulphate and mercuric chloride is mixed with a solution of nicotine and potassium iodide and the light green precipitate dried. The Provisional Specification also mentions cadmium and aluminium as additional metals that may be present.ALSO:Complex compounds of nicotine and copper, which may also contain mercury, zinc, tin, cobalt or nickel, are made up into insecticidal and fungicidal preparations by mixing them with, or coprecipitating them upon, solid diluents, fillers or other insecticides or fungicides, e.g. lead arsenate, Bordeaux mixture, cuprous oxide or derris preparations, or by the addition of a liquid diluent or dispersing agent which may itself have insecticidal or fungicidal properties.  Thus, sulphite lye may be mixed with 1/8 to 2 per cent of its weight of the nicotine-copper complex; for use as a spray, it is diluted with water until 2 to 8 ozs. nicotine are present per 100 gallons.  The Provisional Specification also mentions cadmium and aluminium as additional metals that may be present.
Patent GB-416789-A (GB)
Title: New or improved method or/and means for refining metals
IPC: C22B9/10
Filed: 1933-03-18
Abstract: Metals such as iron, steel, nickel, copper, lead, and tin are refined by treating the molten metal with an alloy of aluminium with one or more of the metals calcium, barium, and strontium, for example one containing 20 per cent of calcium, and removing the layer of impurities which is formed.  The aluminium alloy may contain also as further constituents a metal capable of combining with some of the impurities, or some of the same metal as that to be refined.  Copper may be treated with a calcium-cadmium alloy in addition to the aluminium alloy, and lead may be treated with a calcium-aluminium lead alloy.  The aluminium alloy may be left in contact with the metal to be refined for only sufficient time to take up the impurities to be removed.
Patent GB-1370944-A (GB)
Title: Packaging board
IPC: B65D65/40
Filed: 1971-03-31
Abstract: 1370944 Laminated corrugated board IMPERIAL CHEMICAL INDUSTRIES Ltd 20 March 1972 [31 March 1971] 8296/71 Heading B5N  Packaging board comprises an unfoamed core attached to a liner on at least one face, preferably both faces, the core comprising one or more corrugated thermoplastic sheets filled with talc, chalk, silica, asbestos, diatomaceous earth or glass fibre. In embodiments the core comprises (i) a single corrugated sheet or (ii) two corrugated sheets juxtaposed out of phase. The core may comprise polyethylene, polypropylene or ethylene-propylene copolymer. The liner may comprise plastics sheet, paper, cardboard or fibreboard, the latter three of which may be coated with plastics, e.g. polyethylene. The core and liners may be assembled under heat and pressure.
Patent GB-163859-A (GB)
Title: Improvements relating to sand moulding machines
IPC: B22C15/10
Filed: 1920-03-20
Abstract: 163,859. Bather, H. K. March 20, 1920. Moulding-machines.-In a sand-moulding machine, the box e is given an impulsive movement towards the pattern c. The support d of the box e may carry a lower pattern and is connected by catches i to a cross-head, which is reciprocated by a crank j. A tappet q on the wormwheel m strikes a lever o, Fig. 2, which, acting through links n, withdraws the catches i and allows a compressed spring g to impel the support d away from the cross-head f. Movement of the crank j compresses the spring until the catches re-engage and gives a final compression to the sand.
Patent GB-981583-A (GB)
Title: Foamed vinyl chloride polymeric materials
IPC: C08J9/36
Filed: 1963-03-01
Abstract: The flexibility of brittle foamed vinyl chloride polymeric materials, containing cured synthetic resins, is improved by treating it with a volatile solvent and/or softening agent for polyvinyl chloride, allowing the solvents or softening agents to become substantially uniformly distributed throughout by diffusion and substantially removing it leaving a 2-5% residue. Solvents or softening agents specified are acetone, methyl ethyl ketone, trichloroethylene, carbon tetrachloride, methanol, ethanol or styrene.  Treatment may be by spraying, immersion at or slightly above room temperature or with the solvent or softening agent vapour. During diffusion the foam may be kept in a sealed container, e.g. a polyethylene container. The rate of diffusion may be increased by heating.  The solvent or softening agent may be removed at room temperature or 40 DEG  C., optionally under reduced pressure.  Specified synthetic plastics are polyurethanes and phenolformaldehyde resins.  The treated foam can be sandwiched between two layers of polyester resin reinforced with glass fibre. Such panels are used in the manufacture of boats.
Patent GB-1145398-A (GB)
Title: Bunsen burner
IPC: F23D14/04
Filed: 1968-02-21
Abstract: 1,145,398. Burners. A. M. VAN DER ZWAAL. 21 Feb., 1968 [21 Feb., 1967], No. 8341/68. Heading F4T. An atmospheric gas burner with a gas injector 3 and a mixing bush 5 has the air inlet apertures 4 each provided with a cap-shaped member 8 formed by an inclined wall 9 and vertical boundary walls 10, (11) and clamped to the burner nozzle 2 by the bush 5. The gas-air mixture is distributed by a member 6 to burner grooves 7.
Patent GB-889094-A (GB)
Title: Coupling for driving a machine
IPC: F16D3/18
Filed: 1960-03-09
Abstract: 889,094. Securing sleeves on shafts; universal joints. ALLEN, E. E. March 9, 1960, No. 8382/60. Class 80 (2). The hub 3 of a crown-gear type universal joint is connected to its associated shaft by splines 37 and is axially located by locking balls 28 disposed in hub wall holes 55 and held in a peripheral shaft groove by a spring- loaded locking sleeve 57. The sleeve is formed with an internal peripheral groove 47 into which the balls 28 may pass upon sliding sleeve 57 axially against its loading spring for withdrawal of the shaft. The end of hub 3 is formed with crowned teeth 38 engaging splines 39 on a sleeve 1 forming the complementary universal member. Cooling fins 41 are formed on sleeve 1 and seals incorporating 0-rings 19, 20, 36 prevent leakage of lubricant. The sleeve 1 and hub 3 are centred by an axiallymounted compression spring 21, carried by a projection 27 from a guide member 2 let into sleeve 1 and engaging a collar 33 slidable within hub 3, vent holes 60, 61 being formed in the members 2, 33.
Patent GB-644417-A (GB)
Title: Improvements in and relating to sequential control apparatus for moulding machines
IPC: B22C11/00
Filed: 1948-03-22
Abstract: 644,417. Pneumatic single-stroke apparatus. STONE-WALLWORK, Ltd., and TAIT, W. March 22, 1948, No. 8394. [Class 8(ii)] [Also in Group XXII] The sequential control apparatus for moulding machines described in Specification 631,053 is modified in that the poppet valves operated by a driven cam shaft are replaced by a single driven rotary sleeve valve. The moulding machine comprises a vertically adjustable head, carried by an arm 2 swingable horizontally on a column 3 by means of a compressed air cylinder 4 and a pneumatic jolt and squeeze unit 5 with a table 6 for carrying the mould box. The table may be vibrated by a vibrator 7 and raised and lowered by a lift unit 8 operating through pins 9. Compressed air is supplied to the various parts of the machine under the control of a single sleeve valve 10 rotated within a housing 11 by an electric motor 12 and reduction gearing 15-18 housed in a casing 23 behind the moulding machine. A starter switch is arranged on the machine and the motor is stopped after a complete rotation of the valve by a switch 14 actuated by an eccentric adjustable pin 19 on the gear wheel 18. The valve is divided by a partition 27 into a lower port 28 controlling the supply and an upper port 29 controlling the exhaust of air. The positions and lengths of the various valve ports may be adjustable and for this purpose the rotor, Fig. 5, is formed with circumferential grooves 47 and the effective extent of the port 48 in each groove is determined by two setting-pieces 49 which are clamped in adjusted position in the groove by screws 51.
Patent GB-403637-A (GB)
Title: Improvements in flashlight devices suitable for photographic and the like purposes
IPC: F21K5/08
Filed: 1932-03-19
Abstract: 403,637. Flashlight lamps. CROWLEY, J. F., Westminster House, Gt. George Street, London. March 19, 1932, Nos. 8406/33 and 8407/33. Divided on 403,427. [Class 75 (i).] A flashlight lamp comprising a rigid translucent bulb containing charge of powder, metal strip, foil or dust with gas or vapour is prevented from exploding on ignition by the provision of pressure-relieving valves. Fig. 1 shows a bulb 1 having its cap 2 provided with perforations 7 normally masked by a tensioned rubber sleeve and acting as a valve to relieve excess pressure. The bottom of the cap 2 has a seal 6 of metal foil, collodion &c. adapted to be pierced by the tube 14 of an igniting device when the bulb is pushed on the igniting device so as to bring pins 3 on the cap 2 into engagement with slots in a socket 4, which is also provided with gas escape apertures 9. At engagement the tube 14 is retracted against the resistance of a spring 20 to expose a pellet 19 carried by a stick 18 of insulating material having metal strips 16, 17 gripped by insulated spring contacts 11, 12. The igniting device and bulb can then be mounted in a suitable holder and the charge fired by passing a current through the pellet 19. If desired perforations may be provided in the tube 14 communicating with passages masked by valves similar to the valve 8. The bulb may be provided with more than one series of masked perforations and the cap may be of the screw type. In another construction the igniter is of the percussion cap type and carries a valve adapted to seal the hole pierced in the disruptible diaphragm by the igniter as described in Specification 403,427. One Provisional Specification states that the valve may be in the form of a flap valve operating against seatings formed within a pip or extension of the bulb. Specification 403,638 also is referred to.
Patent GB-986033-A (GB)
Title: A contact device for an electric circuit
IPC: H01H31/02
Filed: 1963-03-04
Abstract: 986,033. High voltage switches. MAGRINI S.p.A. March 4, 1963 [March 2, 1962], No. 8459/63. Heading H2B. A switch has a base 3, two levers 6, 7 pivoted thereto and an arm 8 pivoted to the free ends of the levers 6, 7 and carrying the moving contact assembly 10. The assembly 10 consists of resilient members 11, guides 12 and a rotatable clamping member 10<SP>1</SP> which is rotated automatically by a rod 22 to grip the fixed contact 24 as the arm 8 moves into the closed position. In a modification both the contacts are mounted on linkages (Figs. 5, 6, not shown).
Patent GB-1041473-A (GB)
Title: Method for photonitroso reaction of cycloalkanes
Filed: 1964-02-28
Abstract: In a process for the nitrozation of cycloalkanes by photoirradiation, the luminous intensity in the reaction zone is maintained within a predetermined range throughout the reaction by controlling the rate of admission of nitrozating agent.
Patent GB-930409-A (GB)
Title: Improvements in or relating to the packaging of coils of wire or metal strip
IPC: B65D85/04
Filed: 1961-03-08
Abstract: 930,409. Packages. D. K. B. ELECTRIC Ltd., and D. R. KEARNEY. Dec. 20, 1961 [March 8, 1961], No. 8472/61. Class 94(1). A wrapped strip or wire coil has a rip cord 12 underlying the wrapper and secured at one end to the coil. The other end has a handle 13 and may be secured in place by a label 14.
Patent GB-717535-A (GB)
Title: Improvements in or relating to electromagnetic chokes
IPC: H01F37/00
Filed: 1952-04-03
Abstract: 717,535. Inductors; supply systems for space discharge apparatus. GENERAL ELECTRIC CO., Ltd., and POLGREEN, G. R. July 3, 1953 [April 3, 1952], No. 8499/52. Classes 38(2) and 38(4) An inductance comprises a winding 1 shaped to have two straight parallel sides 2, 2 joined by curved end portions 3, 3; a pair of cylindrical dust cores 4, 4 each encircling one of the winding sides 2, the cores 4 each being divided along its length into a number of sections 5, each of which is formed of at least two members 6, clamping plates 8, 8 being provided to exert pressure on the ends of the cores to maintain the coil members in position: Pressure is exerted between the plates 8, 8 by bolts 9, feet 10 being provided to mount the inductance. The inner faces of the plates may also be recessed into which recesses the cores fit. Such inductances may be used as ballast chokes for fluorescent lamp circuits the size of the choke being governed by the supply frequency.
Patent GB-332212-A (GB)
Title: Improvements in or relating to steam generator installations
IPC: F22G7/14
Filed: 1929-03-16
Abstract: 332,212. Hume, J. H. March 16, 1929. Straight-tube type superheaters.-The gases from the furnace flues 2 of a short cylindrical boiler. 1 flow downwards and upwards in flue passes between groups of superheater tubes 5, 8 connecting upper and< >lower drums 3, 4, 9. All the steam generated in a group of boilers is superheated in the superheater at the back of one of the boilers.
Patent GB-744998-A (GB)
Title: Improvements in free wheel mechanisms for cycles and like vehicles
IPC: F16D41/28
Filed: 1953-03-28
Abstract: 744,998. Freewheel clutches. PHILLIPS & CO., Ltd., J. A., and MILLWARD, E. A. March 29. 1954 [March 28, 1953], No. 8642/53. Class 80(2) In a freewheel mechanism for cycles and like vehicles wherein a chain sprocket is coupled through a roller clutch to an inner driven member fixed on a wheel hub, a number of rollers 24 are arranged between wedging surfaces 21 on the inner periphery of the driving member 10 and a cylindrical surface 15 on the outer periphery of the driven member 11, the surfaces 21 being preferably curved (although they may be straight) and terminating in curved stops 23 which loosely trap the rollers when the drive is disconnected. The member 11 has a flange 12 opposed by an adjustable lock ring 14, and the member 10 is rotatably supported on said flange and ring through ball races 18 which are shrouded by marginal regions of the member 10. The surface 15 may be slightly eccentric to distribute the wear on the surfaces 21.
Patent GB-276586-A (GB)
Title: Improvements in and relating to cup-shaped burners for liquid fuel
IPC: F23D5/00
Filed: 1927-03-29
Abstract: 276,586. Akt.-Ges. Prior, (Assignees of Ruegsegger, W.). Dec. 4, 1926, [Convention date]. Open tray burners.-In a cup-shaped burner 6 fitted with liquid fuel supply pipes 10 and an overflow pipe 11, one side wall 10 is provided with a greater number of compressed air apertures 13 than the other walls in order to impart a definite direction to the flame. In the burner shown two rows of air apertures are provided in the wall 14 and a single row in the opposite wall; the apertures in the lower row are preferably staggered relatively to those of the upper row. A plate 12 prevents the compressed air from cooling the burner cup excessively. The burner may consist of two straight portions arranged at an angle so that, when placed in one of the positions a, b, c in the bakers oven 1, each portion faces one of the flue pipes 4. Alternatively the burner may be of are-shaped or annular form.
Patent GB-269876-A (GB)
Title: Improved means for silencing, and damping pulsations of pressure of, gaseous currents
IPC: F01N1/12
Filed: 1927-03-29
Abstract: 269,876. Maxim Silencer Co., (Assignees of Maxim, H. P., and Bourne, R. B.). April 24, 1926, [Convention date]. Fluids, regulating volume of flow or pressure of.-An apparatus for steadying the flow of gas which is applicable for damping pulsations of gas supply for lighting, or for driving measuring instruments, comprises one or more spiral passages, the ratio of depth to length of the passages being very small, e.g. 1 to 200; in a particular case the depth may be as small as one fiftieth of an inch. A number of spiral sheets 6 their ends angularly displaced round the apparatus are clamped between spacing eyelets and projections 25 by radial bolts 9 to form a unit. Fig. 4 shows the application to the silencer of the exhaust of an outboard motor in which two units are arranged with an annular expansion space between them and are secured by bolts 21 between headers 18, 19 each having inlet pipes 20. The gas may leave by a series of openings 11 formed by the ends of the sheets or bv a single opening in a surrounding casing 1. The two sets of spiral sheets may be arranged eccentrically and the outer set may have all its entrances and exits in the same radial plane. The edges of the sheets may be bent to form flared openings. The Specification as open to inspection under Sect. 91 (3) (a) comprises also spiral passages having a ratio of length to depth of 1 to 500. This subiect-matter does not appear in the Specification as accepted.
Patent GB-1236536-A (GB)
Title: Trisubstituted ureas
IPC: C07C275/64
Filed: 1970-02-23
Abstract: 1,236,536. Tri-substituted ureas. PROGIL. 23 Feb., 1970 [28 Feb., 1969], No. 8665/70. Heading C2C. [Also in Division A5] The invention comprises compounds of the formula where X is a hydrogen or chlorine atom, Y is a hydrogen atom or the methoxy group. and n is 1, 2 or 3. They are prepared by reacting the appropriate N-hydroxy urea with propargyl chloride. They have algicidal and antibactericidal activity.
Patent GB-493510-A (GB)
Title: Improvements in or relating to motor road vehicles
IPC: B60Q1/26
Filed: 1937-03-24
Abstract: 493,510. Road - traffic signals on vehicles. BARRY, D. R., and FRASER, R. P. March 24, 1937, No. 8668. [Class 118 (ii)] Visual indicators are provided at the front of a vehicle and are controlled by the operation of the usual controls on the vehicle. An amber and a green bulb may be arranged on the radiator cap or behind the windscreen and connected to switches which are closed upon the accelerator or brake pedal being depressed. Instead of two bulbs, one bulb may be used with electrical or mechanical means for changing the colour of the light beam. The switch on the brake pedal may be arranged between the pedal and the rubber foot pad. The lamps may be extinguished when the speed of the car or engine falls below a certain value and also when the ignition switch is turned off. Reference has been directed by the Comptroller to British Specification 311,613, [Class 118 (ii)], and U.S.A. Specifications 1,865,506 and 1,956,056.