baber/WOPTO huggingface dataset:
Patent GB-421591-A (GB)
Title: The manufacture of anthraquinone acridone derivatives
Filed: 1933-06-23
Abstract: Anthraquinone acridone derivatives are prepared by reacting upon a 1,4-diaroylamino-5-aminoanthraquinone with an o-halogencarboxylic acid of the benzene series and ring-closing the intermediate so formed.  Or a 1,4-diaroylamino-5-halogenanthraquinone is condensed with an o-aminocarboxylic acid of the benzene series, and the product ring-closed.  Where saponification of the aroylamino groups occurs during the ring closing process, the acridones are again aroylated. Ring-closure by vatting the intermediate usually prevents saponification, but sulphuric acid alone or with acetic anhydride, or chlorsulphonic acid may also be used for this step. The initial condensation is advantageously carried out in a high boiling solvent at 150--250 DEG  C. in presence of an acid binding agent and a copper catalyst.  In an example, 1,4 - dibenzoylamino - 5 - nitroanthraquinone (prepared by benzoylating 1,4-diamino-5-nitroanthraquinone) is reduced with hydrosulphite or hydrosulphide and condensed with o-bromobenzoic acid methyl ester; the product is ring-closed by vatting in an aqueous pyridine medium to give 1,4-dibenzoylaminoanthraquinone - 6,5(N) - benzacridone; substituting the benzoyl residue by the m-methoxybenzoyl group gives an acridone of similar properties.  1,4 - Dibenzoylamino - 5 - nitro - anthraquinone on treatment with excess benzoyl chloride (the starting material may be 1,4-diamino-5-nitroanthraquinone) gives the 1,4-dibenzoylamino-5-chloro compound which, on condensation with anthranilic acid and ring closure by vatting, gives a diamino acridone; benzoylation of the latter yields the above dye.  In a reference to the preparation of the starting materials from 1,4-diamino-5-nitro anthraquinone, chlorbenzoyl chloride, dichlorbenzoyl chloride, m- or p-methoxybenzoyl chloride, a - or b -naphthoylchloride, diphenylcarboxylic acid chloride, anthraquinone-, chlor-and aminoanthraquinone - carboxylic acid chlorides are specified as aroylating agents, reduction of the nitro-group following in each case.  The products dye blue shades fast to alkali and chlorine and are particularly valuable when the aroyl groups are of the benzene series.  Specification 13907/09, [Class 2 (iii)], is referred to.  The Specification as open to inspection under Sect. 91 relates also to the use of o-halogencarboxylic acid and o-aminocarboxylic acids of the naphthalene series in the foregoing processes and comprises two additional examples wherein 1,4-dibenzoylamino-5-aminoanthraquinone is condensed with naphthalene - 2 - chloro - 1 - carboxylic acid methyl ester and naphthalene-2-bromo-3-carboxylic acid methyl ester, followed by ring closure in each case.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1037743-A (GB)
Title: Improvements in or relating to cartridges for firing projectiles and the like
IPC: F42C19/08
Filed: 1963-05-07
Abstract: 1,037,743. Cartridges. DYNAMIT NOBEL A.G. May 7, 1963 [May 9, 1962], No. 18064/63. Heading F3A. A cartridge for firing a projectile, a fixing or piercing element comprises a plastics case with an integral forward closure and having means for retaining the projectile etc. and a propellant charge disposed within the case, the case being constructed such that ignition of the charge causes the plastics case to split open at a predetermined position so that the attached projectile is fired together with the split off portion of the plastics case. In Fig. 1 a projectile 30 is fixed in a cup 10 forming an extension to a thin walled plastics case 6 having an integral forward closure member 11. The case has a thickened end 8 secured to an extension 4 of a metal base 1 by means of beads 3. On ignition of a booster 16 and propellant charge 7, the plastics case is split immediately in front of the end 8. In Fig. 2 a projectile 32 has a rearward end extension 33 surrounding the case 6 to which it is attached by a bead 34. The front wall 35 of the case 6 is thicker than the side wall and there is a cavity 36 between the wall 35 and the projectile so that on ignition of the booster 16 and propellant charge 7 the case breaks off immediately in front of the bead 34. Figure 3 shows the cartridge fixed by a screw thread 40 within a tail section 44 of a mortar bomb having gas outlets 38, the plastics case having a thin front wall 42 enclosing a fixed volume cavity 43. On ignition of a primary charge 41, booster 16 and propellant charge the front wall 42 breaks off and gas outlet holes 38 are stamped out by gas pressure in the side wall of the plastics case, the escape of gas avoiding bursting of the tail section. By controlling the position and composition of the primary charge 41 and booster 16 the front wall 42 breaks just before the gas outlet holes so that the power is not impaired. The booster charge consists of oxygen carriers such as barium nitrate and metallic reducing agents such as Al, Mg, Zr and calcium silicide.
Patent GB-793960-A (GB)
Title: Improvements in or relating to coupling means for flexible tubes
IPC: F16L33/00
Filed: 1955-06-22
Abstract: 793,960. Hose couplings: flexible tubes. PNEUMATIQUES ET CAOUTCHOUC MANUFACTURE KLEBER-COLOMBES. June 22, 1955 [June 28, 1954], No. 18065/55. Classes 99(1) and 99(2). In a flange-coupling device for tubes of rubber-like material 6 reinforced by an annular layer of one or more sheaths 3, 4 of extension resisting material, an annular inner part of the tube wall is in contact with the inner surface of the coupling 7 and covers it completely, the reinforcing sheaths being in contact with the coupling exterior, which is of substantially uniform diameter over the greater part of its length, the sheaths being both pressed against the coupling exterior by a first ferrule 12 and folded back over the ferrule edge, and pressed against the outer surface of the first ferrule by a second ferrule 15, nipples 9 are provided to prevent longitudinal displacement of the ferrules. The tube comprises an inner lining 2, two oppositely wound helical sheaths 3, 4 of metal cord fabric, i.e. metal embedded in rubber or rubber-like material, a helically wound metal cable 5 and the outer coating 6 of rubberlike material. The tubular metal-coupling 7, which is inserted between the lining 2 and the sheath 3, has a flange 8 for coupling bolts 16 soldered or brazed on one end whilst the other end may be chamfered ; intermediate its ends the radially arranged cylindrical nipples 9 are soldered or brazed to the coupling tube. The flange end of the lining 2 is turned radially outwards and is partly received in a recess in the flange. The ferrule 12 is constituted by wound steel wire and the sheaths 3, 4 are folded back at a point near the flange 8 over the ferrule 12 and extend to the nipples 9.
Patent GB-481247-A (GB)
Title: Process for stamping of blanks from bands, for instance closure capsules for bottles and the like
IPC: B67B3/00
Filed: 1937-06-29
Abstract: 481,247. Stamping. EBBEDAL, N. J. O. J. June 29, 1937, No. 18086. Convention date, July 9, 1936. [Class 83 (iv)] Closure capsules are stamped from a strip of metal foil which is stiffened to facilitate feeding by curving corrugating or flanging the strip by rolling, pressing or drawing.
Patent GB-517274-A (GB)
Title: Improvements in and relating to the treatment of carbon black and lamp black
IPC: C09C1/56
Filed: 1938-06-17
Abstract: 517,274. Rubber compositions. COLUMBIAN CARBON CO. June 17,1938, No.18110. Convention date, June 17, 1937. [Class 70] [Also in Group III] Carbon blacks and lamp blacks of commerce and carbon black which has been heat-. activated in an oxygen-containing atmosphere, which have a distinctly acid pH when formed into a sludge, and which have been caused to take up fixed alkaline substances or neutral substances of which an alkaline part is adapted to be adsorbed by the carbon may be added to rubber compositions. The black is treated with sufficient of a solution of the substance to give a product which in an aqueous sludge has a pH of between 6.0 and 9.0 and is then freed from the solution. The subtances must be " fixed " in the sense that the alkaline part is not readily vaporized by heat; ammonia and ammonium salts are unsuitable.. Suitable substances are alkali and alkaline earth hydroxides and salts such as carbonates, phosphates, silicates, borates, and also neutral salts such as sodium chloride and potassium chloride. When salts such as these chlorides are used a thorough washing is necessary to remove free acid which is formed by the adsorption. By admixing the treated slurry with gasoline and as described in Specification 327,979, [Class 90], the carbon black may be formed into granules or pellets.
Patent GB-770948-A (GB)
Title: Improvements in cutting machines for movable webs of paper, cardboard or the like
IPC: B26D7/26
Filed: 1955-06-24
Abstract: 770,948. Cutting webs. JAGENBERGWERKE AKT.-GES. June 24, 1955 [July 5, 1954], No. 18300/55. Class 31 (1). In a machine for longitudinally cutting webs of paper, cardboard or the like, in which a web 1 is passed between circular knives 3 and cooperating grooved cutting elements 8 carried by a roller 4, the knives 3, which are spring- influenced, are carried by arms 9 from a tubular support 10 having pneumatic piston and cylinder means 13, Fig. 1, operatively connected therewith adapted to swing the support to move the knives 3 towards and away from the elements 8 to enable the knives to be adjusted and the support 10 has pneumatic piston and cylinder means 15, 16, Fig. 3, associated therewith to move the support axially to cause the knives 3 to abut the cutting edges of the elements 8. The cylinder 15 is movable axially relatively to a fixed piston 16 against the action of a spring 24, and the axial movement of the support is limited by an adjustable stop 18. The roller 4 is detachable from its drive and movable on tails 14 whereby the cutting elements 8 can be adjusted. In a modification, the support 10 has a spring associated therewith to cause the knives 3 to abut the cutting edges of the elements 8, the reverse movement of the support being effected by pneumatic means.
Patent GB-274116-A (GB)
Title: Improvements in or relating to radio receivers and the like
IPC: H01J5/12
Filed: 1927-07-09
Abstract: 274,116. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Weinberger, J.). July 9, 1926, [Convention date]. Vacuum tubes.-To eliminate howling due to acoustic feed back in a wireless receiving set, one or more of the valves are covered by a substantially soundproof hood or similar casing resting on the set. As shown in Fig. 1, all the valves 12 are protected by a cover or casing 14 which may be of heavy metal, or of moulded composition. It may be lined with felt, asbestos, &c. to render the interior non-resonant. Alternate laminations of metal 14 and fibrous material 15 may be used in the casing, as shown in Fig. 3.
Patent GB-833544-A (GB)
Title: Improved closure means for containers such as vehicle fuel tanks
Inventor: FRANCIS GORDON INGLESBY
IPC: B60K15/04
Filed: 1957-06-11
Abstract: 833,544. Container closures. FRANCIS & BARNETT Ltd. June 10, 1958 [June 11, 1957], No. 18347/57. Class 125(3). A plug closure 4, for a vehicle fuel tank, having an annularly ribbed rubber or like sealing ring 5 which has a force fit in the orifice tube 2 is rotatable in the tube 2 and has abutment members 10 which co-operate with a helical cam surface 12 formed within the tube by a ledge 13 so that rotation of the plug when it is in closed position causes it to be thrust axially outward. A rib 7 on the head 6 of the plug facilitates turning. The hollow plug may serve as an oil measure.
Patent GB-1216322-A (GB)
Title: Improvements in or relating to mine roof supports
Inventor: MCLUCKIE ALEXANDER DALRYMPLE
IPC: E21D23/03
Filed: 1967-04-21
Abstract: 1,216,322. Advancing mine roof supports. W. E. & F. DOBSON Ltd. 16 April, 1968 [21 April, 1967], No. 18425/67. Heading E1P. In an advancing mine roof support frame having metal side shields 6A suspended from the canopy 4A, each of the shields is provided with a sheet of rubber 12A of flanged arcuate shape to co-operate with like elements on adjacent units to prevent ingress of detached material into the gap therebetween, see also Fig. 3 (not shown). (For Figure see next page)
Patent GB-1466937-A (GB)
Title: Device for distribution and electronic control of ignition in internal combustion engines
IPC: F02P5/15
Filed: 1974-04-29
Abstract: 1466937 Ignition systems DUCELLIER & CIE 29 April 1974 [10 May 1973] 18607/74 Heading F1B An electronic ignition system for I.C. engines comprises a computer 7 and an associated ignition advance system 18 receiving signals from position detectors 8, 9 at a frequency dependent on engine speed and from a sensor 10 dependent on an engine operational variable, e.g. accelerator switch, inlet manifold depression, or engine temperature, the ignition advance signal being fed to a separator 19 together with the detector signals from 8 and 9, and the separator output being amplified at 5 and 6 and fed to ignition coils 3 or 4 and their associated spark-plugs 21, 22 or 20, 23. As shown, the position detectors comprise electro-luminescent diodes 12, 13 and photo-transistors 14, 15 angularly offset by 180 degrees around a co-operating disc 11 having a single slot, the width of the slot and the speed of rotation of the disc determining the period in which ignition must take place. The detectors could be mechanical, magnetic, fluid, oscillator or Hall effect types. Again, Fig. 3 (not shown), a system for an asymmetrical engine is described, in which six detectors are distributed asymmetrically about the axis of disc 11 which is rotated at half engine speed. Further, Fig. 4, (not shown), the six detectors are replaced by two detectors and a disc having six asymmetrical slots and an opening (204) which effects a restart of the counting cycle for each turn of the disc, the signals from the detectors being fed to a counter (200) in the computer. Again, Fig. 6, (not shown), two detectors (301), (303) co-operate respectively with a first disc (302) having 12 slots and rotating at engine speed and with a second disc (304) having one slot and rotating at half engine speed to restart the counting cycle.
Patent GB-1014447-A (GB)
Title: Infrared-emitting phosphors
IPC: C09K11/84
Filed: 1964-05-06
Abstract: An infra-red emitting luminescent material comprises Cd.A2.M4 having a spinel structure, where M is S or Se, and A is Dy, Ho, Er, Tm, Yb or Lu, i.e. one of the rare earths of smaller ionic radius.  The material may form a solid solution with CdIn2S4.  Single crystals fluoresce at 6 DEG  K. and less strongly at 77 DEG  K. under irradiation by a xenon lamp.  The material may be prepared by heating A2M3 and CdM in an evacuated quartz tube for 3-24 hours at 1000-1200 DEG  C.ALSO:A luminescent material comprises CdA2M4, having a spinel structure, where M is S or Se and A is Dy, Ho, En, Tm, Yb or Lu, i.e. one of the rare earths of smaller ionic radius.  The material may form a solid solution with CdIn2S4.  The material may be prepared by heating A2M3 and CdM in an evactuated quartz tube for 3-24 hours at 1000-1200 DEG  C.
Patent GB-313766-A (GB)
Title: Improvements relating to bricks and the like
IPC: C04B41/70
Filed: 1928-06-28
Abstract: 313,766. Bilbie, J. P. June 28, 1928. Facing and ornamenting bricks and tiles.- Sand-lime bricks and tiles are provided with glazed and colour effects by the application of dry oxide colours and then a coating of transparent cellulose varnish. Surface pores are filled by lime, any desired number of colours being applied in order to produce the desired effect, after which the cellulose varnish is sprayed on. White effects in an umbrated pattern may be produced by applying the cellulose coating direct to the prepared surface. According to the Provisional Specification a coating of sodium silicate may be applied to the colour layer prior to the application of the cellulose coating.
Patent GB-530601-A (GB)
Title: Improvements in and relating to electrical ignition apparatus for internal combustion engines
Filed: 1939-06-28
Abstract: 530,601. Igniting-systems. BRITISH THOMSON-HOUSTON CO., Ltd., WILKINSON, K. J. R., and COE, R. T. June 28, 1939, No. 18842. [Class 7 (iv)] A spark-gap 6 preferably of the multiple quenched type, and an inductance 7 are used in series in the high tension circuit, with capacitances C1, C2 to earth on both the magnets or coil side and the plug side of these elements. Such capacities may be inherent in the circuit.
Patent GB-485517-A (GB)
Title: Improvements in wrenches
IPC: B25B13/16
Filed: 1937-07-07
Abstract: 485,517. Wrenches. STEELE, G. A. July 7, 1937, No. 18893. [Glass 61 (iii)] A wrench has one jaw 1 rigidly carried by the handle 2 and the other jaw 3 carried by straps 5 provided with a spring gripping rod 7 and rockable within limits between stop pins 14 for gripping the work, the gap between the jaws being adjusted by a screw 9 threading through a bridge piece 6 connecting the straps 5 and having a round end 12 engaging a recess 13 in jaw 1. Instead of toothed V-shaped jaws 15, 16 the teeth 16 of the upper jaw may be arranged on a straight line as shown in Fig. 3 and those of the lower jaw concave, a recess or notch 17 beyond the innermost tooth of the upper jaw being arranged for receiving the innermost tooth of the lower jaw when the gap between the jaws is closed very small.
Patent GB-1480444-A (GB)
Title: Termination of optical fibres
IPC: G02B6/38
Filed: 1975-05-06
Abstract: 1480444 Mould STANDARD TELEPHONES & CABLES Ltd 6 May 1975 18929/75 Addition to 1458896 Heading B5A [Also in Division G2] A metallic mould for making a resilient jig 14<SP>1</SP> (for making an optical fibre termination) comprises a base 10 into which are machined blind holes to receive a pin 11<SP>1</SP> (at the tip of which is provided a secondary, coaxial pin 50) and a tube 12. The composite pin 11<SP>1</SP>, 50 is machined from silver steel. To make the jig, the tube 12 is filled with RTV silicone rubber, lid 13 is pressed home and the rubber is cured at 120 C. for 1 hour.
Patent GB-147559-A (GB)
Title: Improvements relating to apparatus for the supply of liquids
IPC: A47J31/46
Filed: 1920-07-06
Abstract: 147,559. Vernetti, L., and Bartolini, A. July 12, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Funnels.-A jet of liquid, such as issues from a coffee-infuser, is subdivided into a number of jets so as to enable a number of cups to be filled simultaneously either by attaching to the discharge opening 4 a fitting 1 having two or more symmetrically - placed discharge jets 2 or by allowing the jet from the infuser to fall into a funnel supported below it and fitted with two or more discharge jets.
Patent GB-304253-A (GB)
Title: Improvements in or relating to the preservation of edible products
IPC: A23B7/16
Filed: 1927-07-18
Abstract: 304,253. Stabback, A. G. M., and Stabavite Syndicate, Ltd. July 18, 1927. Packing and wrapping materials.-Foodstuffs a.re preserved by wrapping in paper, sacking, &c., or by packing in cartons which are impregnated with a solution in a solvent such as water of a mixture of gum tragacanth or other gum which swells in contact with water without becoming sticky, and glycerine, with or without a bisulphite or an alkali nitrate or other preservative. The preservative mixture may be made acid by adding a small amount of sulphuric acid, or alkali, e.g. by adding sodium bircarbonate. Where the foodstuffs are liable to mould, e.g. apples, a small quantity of oil of cloves or other suitable essential oil may also be added. The first Provisional Specification describes the addition of a hardening agent, such as alum, to the mixture.
Patent GB-499283-A (GB)
Title: Improvements relating to diesel engines provided with precombustion chambers
IPC: F02B23/04
Filed: 1938-06-27
Abstract: 499,283. Oil engines. DAIMLER-BENZ AKT.-GES: June 27, 1938, No. 19020. Convention date, June 25, 1937. [Class 7 (iii)] To enable the contents of a pre combustion chamber f to enter the cylinder space at a flat angle to the piston face, the axis of the chamber makes with the cylinder axis an angle of more than 60‹ and less than 90‹ but preferably between 80 and 85‹. The chamber has an insertion h which may surround a core-piece i, and the piston may have a flat or recessed face.
Patent GB-1425946-A (GB)
Title: Electro-chemical machining apparatus
IPC: B23H9/06
Filed: 1972-04-25
Abstract: 1425946 Electro-machining LUCAS INDUSTRIES Ltd 19 April 1973 [25 April 1972 11 Aug 1972] 19060/72 and 37521/72 Heading C7B An electro-chemical machining apparatus comprises a body part 10 for mounting a workpiece 15 and defines a chamber 21 to be exposed to a surface of the workpiece through apertures in a mask 18, the shape and configuration of the apertures determining the coding of the workpiece being machined by a tool electrode 14 mounted on a holder, e.g. the head portion 13 of a ram 12 located in the bore 11 of the body part 10. Electrolyte supplied to the bore via passages formed within the ram as shown is also supplied to the chamber e.g. via passage 16. Current flow to the workpiece portion exposed through the mask apertures is effected, e.g. by the electrode 14 or a further electrode 19 positioned within the chamber. Flow of electrolyte through the chamber may be controlled by adjusting the size of passage 17. The chamber may be arcuate for coding an annular workpiece.
Patent GB-293981-A (GB)
Title: Improvements in or relating to cigarette making machinery
IPC: A24C5/32
Filed: 1927-07-18
Abstract: 293,981. Ruau, F. r., and Molins Machine Co., Ltd. July 18, 1937. Cigarette-making machines.-In a device for delivering cigarettes from a continuous rod machine in separate batches, the cigarettes of each batch having their corresponding ends disposed in the same direction, rotating vanes 1, 2 such as are described in Specification 272,997 are driven by means which allow the tuning of the vanes to be adjusted in relation to the rest of the machine whilst the machine is running. As shown, the shaft 3 carrying the vanes 1, 2 is driven from a shaft 7 through helical gears 4, 5 the gear 5 being adjustable axially on the shaft 7 by means of a lever 10 carrying a slide 12 engaging a groove 9 in the gear 5. The lever 10 has a slot in engagement with a screw by which it can be secured in adjusted position.
Patent GB-1208079-A (GB)
Title: Thermal process for the production of magnesium
Inventor: RHODES RICHARD PAUL
IPC: C22B5/06
Filed: 1968-04-23
Abstract: 1,208,079. Production of Mg and an Al-Si-Fe alloy. ESSO RESEARCH & ENG. CO. April 23, 1968 [May 1, 1967], No.19134/68. Headings C7A and C7D. Magnesium metal is produced by reducing a mixture of calcined dolomite and magnesia, containing 50-80% MgO and 20-50% CaO, with an Al-Si-Fe alloy (e.g. 3-8 parts of weight of the mixture per part of the alloy) at 1575-1700‹C (e.g. 1625‹C) and at a pressure of 0À5-2 atmospheres (e.g. 1 atmosphere), the amount of the reactants being so adjusted that in the final slag, the weight of CaO is equal to 0À5-1À1 (weight of Al2O3) + 1À0-1À6 (weight of SiO2). The reducing alloy may comprise 40-90% Al and 1-20% Fe, the balance being at least 9% Si, and is preferably produced by electric arc melting (e.g. at 1800-2500‹ C and a pressure of 0À5- 2 atmospheres) of a mixture of Al2O3 (bauxite), SiO2 (clay) and iron oxide in the presence of carbon. A valuable by-product of the magnesium production is ferro silicon (e.g. containing 30-80% Si). A Fe-Si-Caalloy may also be produced which can be treated to recover the elements therein.