baber/WOPTO huggingface dataset:
Patent GB-360356-A (GB)
Title: A manufacture of metalliferous azo-dyestuffs
IPC: C09B45/01
Filed: 1930-07-03
Abstract: Azo dyes, soluble metal compounds of.--Azo dyes containing cobalt are obtained by treating with a solution of an organic or inorganic cobalt compound in a medium not alkaline with caustic alkali or ammonia, a monoazo dyestuff containing no sulphonic, sulphonamide, or carboxylic group or pyrone ring, of the type, o-oxyamine of the benzene series (except 5-chloro-2-aminophenol) --> a dioxy compound of the benzene or naphthalene series. Alternatively the same products are obtainable by first forming the cobalt compound of the diazo compound and coupling this with the coupling component.  The products are fast to light and are especially applicable for colouring varnishes having a basis of cellulose esters or ethers or artificial or natural resins.  In examples, (1) the dyestuff 4-nitro-2-aminophenol --> resorcinol is boiled for 1 to 2 hours under reflux with an aqueous solution of cobalt formate, and (2) the same dyestuff is boiled for 1 to 2 hours with an aqueous solution of cobalt chloride containing sodium sulphite; in each case the product dissolved in nitrocellulose varnish gives vivid scarlet coatings, very fast to light.  The treatment with an agent yielding cobalt may be effected in presence of one or more alkali salts of organic or inorganic acids, e.g. sodium formate, acetate, oxalate, malonate, citrate, or succinate, potassium tartrate, sodium chloride or sulphate, or secondary or tertiary sodium phosphate. Specifications 309,148 (as open to inspection under Sect. 91 of the Acts), and 16803/15, [both in Class 2 (iii), Dyes &c.], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the similar production of azo dyestuffs containing metals other than chromium from azo dyestuffs derived from any unsulphonated o-oxy- or o-carboxy-diazo compound and any unsulphonated oxy compound of the benzene or naphthalene series or dioxyquinoline, and specifies the following further examples, viz.: (a) the replacement of the cobalt formate in example (1) above by copper acetate to obtain a yellowish-red varnish, (b) the treatment of the dyestuff 4-chloro-2-aminophenol --> resorcinol with a solution of nickel acetate or of nickel sulphate containing sodium formate to obtain a product yielding a brownish orange varnish, (c) the treatment of the diazo compound of 4-chloro-2-aminophenol with a solution of cobaltous chloride, zinc sulphate, nickel sulphate, or copper sulphate and coupling of the products with b -naphthol, (d) the replacement of the cobalt chloride in example (2) above by ferric chloride to obtain a vivid brown varnish, and (e) the treatment of the dyestuff 4-chloro-2-aminophenol --> resorcinol with a solution of ferric oxalate containing sodium acetate to obtain a product yielding a brown varnish.  This subject-matter does not appear in the Specification as accepted.
Patent GB-271806-A (GB)
Title: Improvements in or relating to a process of manufacturing metallic articles from molten metal
IPC: B22C9/06
Filed: 1926-08-17
Abstract: 271,806. Industrias Reunidas Alba Soc. Anon. Aug. 21, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 257,265. Moulds as in the parent Specification have the metal parts in sections 5, Fig. 6, which may be horizontal or vertical. The sections may be separated by fillets 9, Fig. 4, to facilitate the escape of gas but not of metal. Passages 6, 8 may also be provided in the sections. If desired the uppermost section containing the runner may be replaced by a sand mould 11, Fig. 6, contained in an iron ring 12.
Patent GB-649850-A (GB)
Title: Improvements in or relating to power transmission gearing
IPC: H02K7/116
Filed: 1948-07-29
Abstract: 649,850. Toothed gearing. MLADEK, B. July 29, 1948 No. 20270. [Class 80(i)] [Also in Group XXXV] An epicyclic reduction gear, having an eccentrically mounted pinion as the driven member  and an annular reaction member, is shown applied to an electric motor. The rotor 11 is carried by a hollow driving shaft 13, in an inclined bore 30 of which is mounted, in a bearing 15, a driven shaft 12 flexibly coupled to a load shaft 26. A spur gear wheel 16 carried by the shaft 12 engages an internally toothed gear 17 which may be fixed, or braked by a brake lining 28, the gear being moved into contact therewith by a screw 20 which may be released when starting the motor. The eccentric mass of the gear 16 is balanced by the eccentric mass provided by the difference in the thicknesses a, b of the wall of the shaft 13.
Patent GB-399948-A (GB)
Title: Improvements relating to the firing of gas heated furnaces
IPC: C10B1/06
Filed: 1932-07-18
Abstract: 399,948. Gas-fired retort &c. furnaces. CARPENTER, C. C., ANDREWS, A. H., and SOUTH METROPOLITAN GAS CO., 709, Old Kent Road, London. July 18, 1932, No. 20335. [Classes 51 (i) and 51 (ii).] In a gas-fired furnace wherein a main combustion flue is branched to form continuation flues, a burner is provided at the branching place having its passages for gas or air so directed that a stream of fluid is delivered into the current entering each continuation flue substantially in the same direction as that in which the current is flowing. As applied to a retort furnace heated by a gas producer, the gases flowing through the main combustion flue a to the branch flues c meet streams of air or gas or air and gas delivered into the branch flues c from a burner e having its ports f directed towards the branch flues c.
Patent GB-1523382-A (GB)
Title: Device for detecting overdischarge of an accumulator as well as the surface level of the liquid contained in the accumulator
IPC: H01M50/569
Filed: 1976-05-17
Abstract: 1523382 Detection device for overdischarge and electrolyte level in an accumulator ISHIKAWA TEKKO KK 17 May 1976 [27 May 1975 16 Jan 1976] 20345/76 Heading H1B A device for detecting overdischarge of an accumulator as well as the surface level of electrolyte contained in the accumulator comprising a floating member 11 provided with a permanent magnet or magnetic material 14, a case 23, 24 which houses the floating member and has a hole 35 through which electrolyte 84 enters the case, a means 51 for sucking the electrolyte from the accumulator through a hole and into the case the hole communicating with the electrolyte in the accumulator via at least one chamber 33, 50 attached to the outside of the case and a magnetically sensing switch 71 arranged to operate in response to movement of the permanent magnet or the magnetic material. The sucking means 51 may be a rubber bulb having a valve 65 communicating with the case which may have gas passages 29, 26, 27 for removal of battery gas and the chambers 33 and 50 may have cut away portions and slits 46, 47 to retain electrolyte in the case during movement of the accumulator and to allow removal of gas from the case.
Patent GB-752069-A (GB)
Title: Improvements in or relating to aerodynes
IPC: B64D37/12
Filed: 1954-06-02
Abstract: 752,069. Aircraft. COOKE, W. D. June 2, 1954, No. 20348/55. Divided out of 751,977. Class 4. A powered aerodyne 53 is provided with subsidiary wings 57 constructed as fuel containers and detachable from the aerodyne so as to descend as a glider, and means for imparting a substantial initial thrust to the glider on separation, the propulsive means, crew, and payload being in the aerodyne outside the subsidiary wings. Compressed air from a bottle 64 and pipe 65 keeps a bellows 61 extended as the fuel is used up to prevent surging on separation. Both pairs of wings are swept back, the subsidiary also having dihedral. The two subsidiary wings are constructed as a unit, involving a spar 58, supported on rollers 67 on a transverse beam 68 having a web member 69 (Fig. 5) secured to the airframe. Apertures 74, 75 in the subsidiary wing skin allow hooks 71, 72 to engage the flanged end of spar 58. These hooks are mounted, one pair each side, on journals 73 secured one each side of the web 69. The free ends 71a, 72a of the hooks are constrained apart by a linkage 78, 79 past its dead-centre position. Operation of a servo-piston and cylinder 82, 83 moves the linkage 78, 79 over its dead centre position to open the hooks 71, 72 and release the spar 58. Contacts 88 are also closed, exploding a charge of explosive 90 (Fig. 5) to give an initial thrust to the wing unit. A fuel pipe 66 runs from the wing and enters a pipe 95 leading to a turbo jet engine. On separation, a stopper 96 engages the end of pipe 66 to close it. Specification 751,977 is referred to.
Patent GB-516312-A (GB)
Title: Improved means and methods of encasing metal joists and stanchions in concrete
IPC: E04G11/44
Filed: 1938-07-09
Abstract: 516,312. Beam centering supports. GREEN, B. July 9, 1938, No. 20363. [Class 20 (ii)] Joists, stanchions and like members 1 are en cased in concrete by means of temporary wooden shuttering which is supported by bolts 4 passed througl the shuttering and having their ends screwed into substantially flap plates o r clips 6 arranged to overlap or otherwise engage the flanges of the joists or like members. Each plate 6 is provided witt a screw-threaded hole tc receive the end of the bolt 4 and it is either bent or formed with a shaped underface for suitably engaging a flange of the joist; alternatively, the underface of the plate 6 may be flat and hardwood packing pieces used between the plate and the flange. In another construction, each edge of one flange of a joist may be engaged by a plate clip and a single bolt may pass through both these plate clips and the shuttering. In the case of a stanchion which is completely enclosed by shuttering, concrete packing blocks may be arranged between the flanges of the stanchion and the adjacent shuttering. The bolts may be greased or surrounded with cardboard or other material to facilitate withdrawal.
Patent GB-184456-A (GB)
Title: System for the distant control of a direct current electric motor
IPC: H02P1/18
Filed: 1922-07-26
Abstract: 184,456. F. I. A. T., Fabrica Italiana Automobili Torino, Soc. Anon. Aug. 9,1921, [Convention date]. Accessories, arrangement on machine. - An electric motor 1 is provided with an electromagnetic starting-switch comprising a coil 10 set in a circularly grooved core of disc form, a disc-shaped contact armature 11 held off by a spring 12, and stationary contacts 5, 6. The switch is mounted on one of the supports of the motor shaft 13 and has its coil connected to a battery 3 and a hand control switch 18, the other terminals of the battery and the control switch being earthed.
Patent GB-469631-A (GB)
Title: Improvements in gas or vapour-filled electric discharge tubes and in devices comprising such tubes
IPC: H01J61/54
Filed: 1936-07-23
Abstract: 469,631. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 23, 1936. No. 20441. Convention date, Sept. 24, 1935. [Class 39 (i)] [Also in Group XXXVI] A gas- or vapour-filled discharge tube has at least one incandescent electrode heated solely by the discharge, and there is connected in parallel with the discharge path at least one branch circuit comprising a resistance and an auxiliary discharge path which starts from the incandescent electrode, the resistance having such a positive temperature coefficient that during normal operation its value is at least 1À5 times, and preferably two or three times, its value at the ignition of the discharge tube. The low resistance at starting decreases the ignition voltage, while the high resistance in operation reduces the current in the branch circuit and consequent losses and instability. In the sodium lamp shown, a U-shaped discharge tube 1 is supported within an outer evacuated jacket 8 by a spring 11 bearing on an inner sheath 9, as described in Specification 457,266. Discharge-heated incandescent electrodes 3 at each end of the tube are surrounded by auxiliary electrodes 5 each connected to the opposite main electrode through resistances 14 having a positive temperature coefficient. These may be iron wire wound on a mica strip 16 or on enamelled copper rod and placed so as to be heated by the discharge tube. The starting gas is neon at 10 mms. pressure. The resistance may be enclosed in a glass tube and placed within the discharge tube so that its ends constitute the auxiliary electrodes.
Patent GB-481651-A (GB)
Title: Improvements in film manufacture
IPC: B29C48/08
Filed: 1937-07-24
Abstract: Addition to 480,645 <PICT:0481651/IV/1> The process described in the parent Specification is applied to films of resins or synthetic resins, for example, polyvinyl resins as described in Specification 351,082.  The surface of the drum may be dried between the stripping point 19 and the hopper 11 by means of cloth pads saturated with alcohol or acetone.
Patent GB-700134-A (GB)
Title: Improvements in centrifugal clutches
IPC: F16D43/08
Filed: 1951-08-30
Abstract: 700,134. Friction clutches. S. I.B.A. Soc. Il. BREVETTI AUTOMOBILISTICI - AR.L., and KREIS, F. Aug. 30, 1951 [Aug. 30, 1950]. No. 20497/51. Class 80 (2) A centrifugally operated friction clutch, particularly . for automatic change speed motor . vehicle gears, comprising main, radially movable, sector shaped centrifugal weights 23, each pivotally connected by a pin 29 to levers 15 pivoted on pins 18 to a centrifugal weight carrier 17, is characterized by locking balls 12 being freely arranged in holes 13 of the levers, to engage on one side with coned surfaces 31 of the centrifugal weight carrier and on the other side with a member 11 abutting a 'thrust bearing 10, body 9 and resistance centrifugal weights 5. A driving shaft 1 carries a drum 3 and a disk 4 engaged by friction linings 27 on pressure plates 26 urged axially by balls 25, when the centrifugal weights 23 move cutwards against the force of a garter spring 24. A sleeve 19 is rotatable on the shaft 1 and is driven from this shaft by gearing, not shown, and carries a member 21 having axial pins 22; these pins engage with straight surfaces 28 on arms of the pivoted levers 15 to impart rotation to the centrifugal weight carrier 17. The resistance centrifugal weights 5 are radially guided by pins 6 on the disc 4 and are urged inwardly by a garter spring 7 ; when they move outwards under the influence of centrifugal force, inclined surfaces 8 engage the body 9 and thus impart an axial thrust to the locking balls 12 in the holes 13, which accordingly tend to oppose outward movements of the weights 23 to engage the clutch. The clutch can be disengaged in the normal way by decreasing the speed of rotation until the weights 23 are pulled inwards by the garter spring 24 and also by the application of an excessive load to the sleeve 19 ; this load moment acts through the pins 22 engaging the straight surfaces 28 of the levers 15, and tends to urge the weights 23 to move inwardly at a higher rotational speed than they would otherwise. Specification 689,543 is referred to.
Patent GB-1079591-A (GB)
Title: Improvements in fuel-injection pump delivery valves for internal combustion engines
IPC: F02M59/46
Filed: 1965-05-14
Abstract: 1,079,591. Fall injection pumps. DAIMLERBENZ A. G. May 14, 1965 [May 15, 1964], No. 20505/65. Heading F1A. A fuel injection pump outlet valve of the type provided with a piston 6 sliding in cylinder 2 for drawing back fuel from the fuel line during closing, has a by-pass passage 7 in the cylinder 2 so disposed that at starting speeds when the valve lift is small fuel flows directly through the passage 7 and valve and there is no draw back from the line, whereby a large volume of fuel is supplied for starting, which volume decreases sharply when the valve lift is sufficient to permit the piston 6 to function.
Patent GB-1475432-A (GB)
Title: Detecting arrangement for liquid chromatography
IPC: G01N30/62
Filed: 1975-05-15
Abstract: 1475432 Liquid chromatography CESKOSLOVENSKA AKADEMIE VED 15 May 1975 [21 May 1974] 20604/75 Heading B1H A detecting arrangement for liquid chromatography comprises a chromatographic column, an atomizer, a separating column, supply means for a carrier gas, a detecting device and a recording device, the output from the chromatographic column being connected via the atomizer to the separating column to which the supply means for carrier gas is also connected, the output from the separating column leading to the detecting device electrically connected to the recording device. The separating column promotes evaporation of the mobile phase so that the effluent is greatly enriched in the substance to be analysed.
Patent GB-1465443-A (GB)
Title: Process for the preparation of 4-amino-1,8-naphthalic acid-n- arylimide compounds
IPC: C08K5/00
Filed: 1975-05-15
Abstract: 1465443 Preparing 4-amino-1,8-naphthalic acid-N-arylamides HOECHST AG 15 May 1975 [15 May 1974] 20648/75 Heading C4P Compounds of the general formula wherein R is an aromatic radical are prepared by reacting a 4-halogeno-1,8-naphthalic acid-N- arylamide with ammonia in an anhydrous polar organic solvent at 150-200‹ C. R is preferably a phenyl or naphthyl radical which may be substituted by non-ionic substituents, e.g. 1-3 methyl groups or 1-2 halogen atoms. The reaction takes place under pressure optionally using an excess of ammonia and a catalytic amount of copper powder or a copper compound. The solvents include C 1 -C 6 - aliphatic alcohols, dimethylformamide, tetrahydrofuran, dioxan and mono- and di-ethers of ethylene glycol with C 1 -C 4  alkanols. Examples 1, 2 and 20 describe the preparation of the 4- halogeno - 1,8 - naphthalic acid -N - arylimides by reacting a 4-halogeno-1,-8-naphthalic acid anhydride with an amine R-NH 2 . The dyes dye solvents and polyester fibres and are used in the preparation of daylight fluorescent pigments.
Patent GB-838582-A (GB)
Title: Improvements in or relating to processes and apparatus for the production of hectographic inking bands
IPC: B41M5/04
Filed: 1958-06-27
Abstract: 838,582. Hectographic transfer strips. RITZERFELD, W., and RITZERFELD, G. June 27, 1958 [July 1, 1957: March 5, 1958], No. 20684/58. Class 96. Hectographic inking bands for the production of mirrorscript master sheets for use in hectographic duplicating machines are made from a paper web &c. 1 to which is applied a uniform layer of hectographic ink 2, part of which soaks into the paper at 15, the web being then passed between a lower, preferably heated, supporting roll, and an upper, pivotally mounted. circumferentially recessed roller which squeezes the unabsorbed hectographic ink from a series of parallel bands intothe spaces between them. The ridges of ink thus formed are levelled out and somewhat broadened to the form illustrated. They are bordered by margins 13 which are practically ink-free at the surface. The web may then be coated with a protective layer of wax or plastic &c. and cut to a ribbon form as illustrated.
Patent GB-966664-A (GB)
Title: Coating process
IPC: C23C14/02
Filed: 1963-05-23
Abstract: A process of coating a metal article with a layer of a metal coating material comprises feeding the article continuously through an evacuated chamber, depositing a thin layer of the coating material by condensation from the vapour, forming an alloy layer of the metal of the article and the deposited layer of coating material, and then depositing a further layer of coating material by condensation from the vapour on to the thus formed alloy layer.  The coating material may be zinc or aluminium and the article may be strip steel, and the process may be incorporated in a process for making strip steel, e.g. after annealing and cleaning apparatus.  The article may be coated on one or both sides thereof and it may be moving at a speed of 2000 feet per minute; it may be non-ferrous and may be heated before or after it enters the chamber.  The article is preferably cleaned and degreased before entering the chamber, and the latter has roller inlet and outlet seals.  In an example a steel substrate is heated to about 157  DEG C. and zinc coating material was vaporized and superheated to a temperature above 450  DEG C., the zinc forming a coating of less than 0.001 inch thick; the coating may be only several microinches thick. The substrate is then heated to a temperature of about 460  DEG C. or slightly above to form a layer of zinc steel alloy.  The substrate is subsequently cooled to below the vaporizing temperature of the zinc, i.e. 343-405  DEG C. over a pressure range of 0.01-0.1 mm. of mercury, and a further coating of zinc is deposited by condensation on the alloy layer.  The coating of zinc may be from 1 microinch to 0.001 inch thick.
Patent GB-461884-A (GB)
Title: Improvements in the manufacture and production of azo dyestuffs
IPC: C09B29/32
Filed: 1935-07-22
Abstract: Azo dyes are made by coupling 5 : 6-dihydro1 : 3-dihydroxybenzenes or cyclohexane-1 : 3-diones with diazotized aromatic amines which contain in o-position to an amino group a carboxylic, carboxylic ester, hydroxy or alkoxy group and, if desired, treating the resulting dyestuffs with agents supplying metals in substance or on the fibre.  In examples, dyes from the following components are described: diazo components; 4 : 6-dinitro-2-aminophenol, 4-nitro-2-aminophenol, 6-nitro-2-aminophenol-4-sulphonic acid, 4 - nitro - 2 - aminophenol - 6 - sulphonic acid, 2 - aminophenol - 4 - sulphonic acid, 4-chlor-2-aminophenol-6-sulphonic acid, 1-amino-2-naphthol-4-sulphonic acid, 2-amino-5-sulphobenzoic acid, anthranilic acid, 4-nitro-1-amino-2-benzene carboxylic acid and 5-nitro-2-aminoanisole-4-sulphonic acid: coupling components; 5 : 6-dihydro-1 : 3-dioxybenzene and 4 - methyl - 5 : 6 - dihydro - 1 : 3 - dioxybenzene.  The dyeings may be after-chromed or the dyes may be applied to wool with ammonium chromate by the single-bath process. Brown shades are generally obtained.  The complex chromium and copper compounds also dye wool and leather in brown and violet shades whilst the dyes from diazotized o-amino carboxylic acids yield yellow shades.  Samples have been furnished under Sect. 2 (5) of the dyestuffs: (1) 4 - nitro - 2 - aminophenol - 6 - sulphonic acid --> 4-o -phenylethyl-5 : 6-dihydro-1 : 3-dioxybenzene (brown-red on wool becoming yellow-brown on after-chroming); (2) anthranilic acid n-butyl ester --> 5 : 5-dimethylcyclohexane-1 : 3-dione (colours nitrocellulose ester lacquers yellow).  5 : 6-Dihydro-1 : 3-dioxybenzene and its alkyl or aralkyl derivatives are obtainable by catalytic hydrogenation of the corresponding 1 : 3-dihydroxybenzenes in the presence of at least one molecular equivalent of strongly basic substances, e.g. alkali metal hydroxides.
Patent GB-914686-A (GB)
Title: Improvements in disc brakes
Inventor: BUTLER HENRY JAMES
IPC: F16D55/228
Filed: 1958-06-28
Abstract: 914,686. Disc brakes. DUNLOP RUBBER CO. Ltd. June 18, 1959 [June 28, 1958], No. 20806/58. Class 103 (1). In a spot-type disc brake, the pads of friction material 6 are retained with side clearance in the non-rotatable housing 2 in a radial direction by means of torque-taking surfaces 8 formed on members 9 and 10 secured to the radially outer and radially inner parts of the housing respectively. The surfaces 8 bear against complementary surfaces 7 on the friction pads and guide the latter in an axial direction towards the disc 1 when fluid pressure actuators 11 are pressurized. A clearance of the order of onesixteenth of an inch is provided between the radially-extending sides 5 of the calliper members 3 of the housing 2 and the pads of friction material 6 so that accumulated dirt does not tend to prevent ready movement of the pads during operation of the brake. Specification 688,382 is referred to. Reference has been directed by the Comptroller to Specification 861,091.