baber/WOPTO huggingface dataset:
Patent GB-462719-A (GB)
Title: Manufacture of water-soluble azo-dyestuffs
IPC: C09B33/04
Filed: 1935-09-09
Abstract: Azo dyes soluble in water are manufactured by coupling simultaneously or successively 1 mol. of a dihydroxy or trihydroxy compound of the benzene series, capable of coupling twice, e.g. pyrocatechol, resorcinol, pyrogallol, phloroglucinol or their derivatives capable of coupling twice, with 2 mols. of a diazo-compound or 1 mol. of one diazo- or diazoazo-compound and 1 mol. of another, at least one of these diazo-compounds being a 5-diazoacenaphthene and the components being such that the dyestuff produced contains at least one sulphonic acid group.  The products are suitable for dyeing leather.  Examples describe the production of the following dyestuffs: (1) 5-aminoacenaphthene --> 1 : 3-dihydroxybenzene-5-sulphonic acid \sM 2-nitraniline-4-sulphonic acid; (2) 5 - aminoacenaphthene - 8 - sulphonic acid --> resorcinol \sM sulphanilic acid; (3) 5-aminoacenaphthene - 8 - sulphonic acid --> phloroglucinol \sM 4-amino-3 : 2<1>-dimethyl-1 : 1<1>-azobenzene - 5 : 4<1> - disulphonic acid.  A table is given of further dyestuffs, the following additional components being specified: first diazo-components: 5-aminoacenaphthene-3-, 4- and 7-sulphonic acids; second diazo-components: 4 - nitro - 1 : 3 - diaminobenzene, the dyestuff picramic acid --> 1 : 8-aminonaphthol-3 : 6-disulphonic acid, the dyestuff benzidine --> salicylic acid, 5-aminoacenaphthene-7- and 8-sulphonic acids, 3-amino-5-sulpho-6-hydroxybenzene-1-carboxylic acid, 2-naphthylamine-6 : 8-disulphonic acid, 4-aminodiphenylamine-2-sulphonic acid, 4-nitraniline-2-sulphonic acid, aniline - 2 : 4 - disulphonic acid, the dyestuff 6 - chloro - 2 - toluidine - 4 - sulphonic acid --> m-toluidine and the dyestuff sulphanilic acid --> 1-naphthylamine-6-sulphonic acid; coupling components: 1 : 3-dihydroxybenzene-4- and 5-carboxylic acids and pyrocatechol.  Specifications 251,140, [Class 2 (iii)], 437,657, 447,775, and 447,814 are referred to.  The Provisional Specification comprises in general the coupling of 1 mol. of a component of the benzene or naphthalene series, capable of coupling at least twice, with at least 2 mols. of a diazo-compound or at least 1 mol. of one diazo-compound and at least 1 mol. of another, at least one of these compounds being a 5-diazoacenaphthene and the finished dyestuff containing at least one sulphonic acid group.  An additional example describes the production of the dyestuff 5-aminoacenaphthene-7-sulphonic acid (2 mols.) \sQ resorcinol (1 mol.) \sM 2-nitraniline-4-sulphonic acid (1 mol.).  It is stated that the dyestuffs may be oxidized or may be treated with an agent yielding a metal, and reference is made to the chromium compound of the dyestuff 5-aminoacenaphthene-3-sulphonic acid --> resorcinol \sM 3-amino-5-sulpho-2-hydroxybenzene-1-carboxylic acid.
Patent GB-1313661-A (GB)
Title: Method of and apparatus for measuring the temperature of material in a rotating furnace
IPC: F27B7/42
Filed: 1970-05-26
Abstract: 1313661 Measuring temperature PARAISTEN KALKKI OY 26 May 1970 [3 June 1969] 25086/70 Heading G1D In order to measure the temperature of material in a rotating furnace 1, a vessel 12 is arranged to collect, by way of a closeable aperture 2 in the furnace, a portion of the material, the vessel containing a temperature responsive device connected to an indicator. As shown, the vessel 12 which may be of truncated cone shape and provided with an insulating jacket (15) Fig.2, (not shown) is movably mounted on guide rails 18 which, over at least a portion of their length, are concentric with the rotation axis of the furnace. A plug 3 which is fastened to one end of a bellcrank lever 4, 6 and spring urged to close the aperture 2 is arranged, during a portion of rotation of the furnace, to be opened by a curved rail 7 engaging the bellcrank lever 4, 6 so that material can be released from the furnace, such material being collected in the vessel 12 which is moved in synchronism with the aperture 2, by means of the plug 3 in its open position, to a position 21 at which the temperature of the material can be determined before the material in the vessel is discharged. The temperature may be sensed by a thermocouple. The rail 7 may have a portion 8 for jolting the plug 3 so as to free any accumulation of material at the aperture 2.
Patent GB-731174-A (GB)
Title: New or improved tabulating device for typewriters, calculating or like machines
IPC: B41J25/18
Filed: 1952-10-08
Abstract: 731,174. Typewriters &c. TRIUMPH WERKE NUERNBERG AKT.-GES. Oct. 8, 1952 [dct. 8, 1951; June 9, 1952], No. 25182/52. Class 100 (4). [Also in Group XIX] Tabulating key-actions.-A tabulating device for typewriting, calculating and like machines has a single tabulator key by which both column by column tabulation and column skipping can be effected, separate means being provided for the release, and for the stopping, of the travelling carriage, and these are so arranged as to be operated successively in two successive stages of movement of the tabulator key. In one embodiment described, the stages comprise movements of the key first in one direction and then in the reverse direction. As shown, the tabulator key 2, on being depressed from the normal position, Fig. 3, raises a lower part of a stop lever 5 and disconnects an arm 11 from the carriage ratchet wheel. A projection 23 on the stop lever passes a cross-piece 19, Fig. 4, slidably mounted in slots 24 formed in the side arms of a locking bridge 20 pivoted at 21 to side members 7, and an end projection 16 moves away from a projection 17 formed in an upper part 5b of the stop lever, which is held in original position by a cross-arm 18 on the locking bridge 20. Release of the key 2 causes the projection 23 to engage the cross-piece 19 and pivot the locking bridge 20 clockwise. This releases the upper part 5b of the stop lever 5, Fig. 5, which engages with a tabulator stop and slides a guide 12 on which is a locking arm 26. Movement of arm 26 allows a further clockwise movement of the locking bridge 20 and the cross-piece 19 disengages from notch 23 on the lower part of the stop lever 5 and a return-spring 10 returns upper and lower parts of lever 5 to normal. The locking bridge 20 is returned by springs 25, and guide 12 by a spring 14.
Patent GB-1204453-A (GB)
Title: Improved steel
Inventor: HEDE NILS ERIK ALLAN
IPC: C22C38/48
Filed: 1969-05-16
Abstract: 1,204,453. Steel. BOFORS A. B. May 16, 1969 [May 16, 1968], No.25184/69. Heading C7A. A stainless ferrite-austenitic steel consists, in per cent by weight, of C 0À02-0À12 Si 0À1-1 Mn 0À1-2 N 0À1 max Cr 20-30 Ni 4-8 Mo 1-2À5 Nb such that total Nb-Nb C bound to N # 8 Fe and impurities-balance. The steel is particularly resistant to intercrystalline corrosion.
Patent GB-1017732-A (GB)
Title: Resin-metal salt filled fibrous material
IPC: D21H17/53
Filed: 1962-07-02
Abstract: Paper or board is made from a fibrous slurry by a process including the successive steps of adding to the slurry with agitation a soluble salt of a polyvalent metal, adding with agitation the ammonium or alkali salts of certain carboxylic acids, and introducing a polyethylene oxide of high molecular weight to control the size of the flocs of the precipitated salt of the polyvalent metal and the acid.  The carboxylic acid is a resinous or fatty acid or a synthetic polymer containing carboxylic acid groups.  Acids referred to are: wood rosin, tall oil fatty acids, extracted pinewood pitch, abietic, oleic, stearic and linoleic acids, and mixtures of these acids; shellac, alkali-soluble partial ester of a styrene-carboxylic acid copolymer or an alkalisoluble copolymer of vinyl acetate and crotonic acid.  The polyethylene oxide is used at a concentration of 0.002 to 0.1% based on the total content of fibre and precipitate.  The fibres may be of wood pulp, glass, asbestos or synthetic organic materials. The salts of polyvalent metals may be chlorides, nitrates, acetates or sulphates of calcium, barium, magnesium, strontium, aluminium, zinc, beryllium, cadmium, cobalt (bivalent), copper (bivalent), iron (bivalent), manganese (bivalent) mercury (bivalent), nickel, (bivalent) and tin (quadrivalent).  There may also be added other substances such as melamine-formaldehyde resin, or polyethyleneimine. The pH may be controlled by the use of sulphuric acid or aluminium sulphate. The product may be formed or moulded under heat and pressure. Compound boards may be made in which the centre layers are of the invention and the surface layers are free of the precipitated salt, by applying appropriate pulp-stocks to a multi-cylinder machine.  The specification also describes the purposes of comparison paper or board from which one or more of the ingredients has been omitted, or made from slurries to which they have been added in other orders.
Patent GB-1316225-A (GB)
Title: Pneumatic pressure-displacement transducers
IPC: G01L19/08
Filed: 1971-04-19
Abstract: 1316225 Valves J C ECKARDT AG 19 April 1971 [25 March 1970] 25252/71 Heading F2V [Also in Divisions G1 and G3] A pneumatic amplifier for use in control or pressure measuring systems (see Divisions G2- G3), has a pair of balls (13) controlling communication between inlet P 2  and outlets A<SP>+</SP>, A<SP>-</SP>, the latter being spaced by a distance equal to the diameter of the balls. As shown, the balls respond to spring bias 7 and to a feed-back pressure below diaphragm 4.
Patent GB-816814-A (GB)
Title: Apparatus for electrolytically treating wires
IPC: C25D7/06
Filed: 1957-08-12
Abstract: 816,814. Treating wires electrolytically. ROTHSCHILD, E. Aug. 12, 1957, No. 25369/57. Class 41. An apparatus for electrolytically treating, e.g. electroplating, a plurality of wires passing in spaced parallel relation between supply and take-up reels, comprises a tank 60 and a plurality of electrically-insulated wire-guides 30a, 35a extending across the tank 60 in spaced relationship, each guide 30a, 35a having portions, e.g. notches, 31a, 33a, for respectively supporting the wires below and above the level of electrolyte in the tank 60, at least one guide 35a providing an end wall 67 sloping towards an end wall of the tank 60 to define a compartment 22a communicating at 24a with a by-pass 85 which lies at the level of the bottom of the tank 60, electrode means in the tank 60, and means, e.g. a pump 36a, for circulating electrolyte through the by-pass 85. The wires may be copper and the electrode comprises tin or tinlead anode slabs on a steel tray 62, current being supplied by straps 63 depending from a bus-bar. The pump 36a delivers electrolyte via holes 39a in a pipe 40a from the by-pass 85 to the tank 60 from which it overflows into the compartment 22a. Cooling coils may be included in the tank 60. Prior to plating, the wires pass continuously and in straight lines through a heated caustic bath and then through an acid bath, the caustic and acid cleaning apparatus being similar to that described with reference to Fig. 5, suitable electrical connections being made in each case. The acid-containing tank is rubber-lined. The acid bath is fluoboric acid solution containing stannous fluoborate, tin and naphthol. After both the cleaning operations and after the plating operation, the wires are sprayed with water and subjected to an air blast for drying. The notches 33a enable selected wires to be passed out of contact with one or more of the cleaning and plating baths.
Patent GB-303042-A (GB)
Title: Improvement in metallurgical furnace
IPC: F27B1/14
Filed: 1927-09-26
Abstract: 303,042. Cushing, D. Sept. 26, 1927. Cupola furnaces; hearths; discharging. - A cupola furnace 10, adapted particularly for melting non-ferrous metals, is provided at the lower end with a hinged base member 40 having a refractory lining 54 which is in contact with the metal in the furnace and, is permanently secured to and movable as a unit with the member 40. The lining 54 is composed of fire-bricks the outer members of which are grooved to engage with a rib 47 on an upstanding flange 45 of the base 40, a layer of heat-insulating material 56 being interposed between the member 40 and the bricks 54. The closure is inclined downwardly, as shown, towards the tap-hole 58 and is formed with an horizontal flange 46 adapted to engage over the bottom ring 10<a> of the furnace, a gas-tight joint being ensured by sealing material 57. The hearth, which is hinged at 41 and normally retained in the closed position by a strut or prop 51, may be swung downwardly to discharge the contents of the furnace for cleaning etc., a chain 52 being provided to limit the swinging movement.
Patent GB-506065-A (GB)
Title: An improved packet of braid or the like
IPC: B65D85/672
Filed: 1937-09-21
Abstract: 506,065. Rolls of ribbon &c. JONES, STROUD, & CO., Ltd., and JONES, W. Sept. 21, 1937, No. 25620. [Classes 18 and 94 (i)] A roll of narrow strip material such as braid or ribbon, or of cord, yarn, &c. is packed in a container made from the blank shown, apertures 5 serving for egress of the material and for rotating the roll. The flaps may be connected by adhesive, and the roll may be carried by a ferrule extending, from the front to the rear wall. The ferrule is in some cases rotatable and may carry a wood disc about which the ribbon &c. is wound. In another form a ring may rotatably embrace a central hub fixed to the walls. The container may accommodate more than one roll and these may be arranged coaxially. The windows may be covered by transparent paper and the package may be enclosed in an outer scaled covering of transparent paper which may be coloured to exclude ultra-violet rays. The container may be of triangular, polygonal, or circular shape.
Patent GB-425320-A (GB)
Title: Process for improving the magnetic properties of iron and iron alloys
IPC: C23C10/08
Filed: 1933-09-15
Abstract: To improve the magnetic properties of iron or iron alloys, e.g electrolytic iron, the iron known under the Registered Trade Mark "Armco," and iron alloys containing small percentages of silicon or aluminium, the iron or iron alloy in the solid state is alloyed with arsenic by diffusion.  The conditions may be such that only a surface alloying takes place or the arsenic may diffuse throughout the thickness of the iron &c.  The diffusion may be effected by heating the iron, preferably in an atmosphere of hydrogen, in contact with powdered arsenic, a metallic arsenic compound, or an arsenic compound such as arsenious oxide, together with an inert substance such as aluminium oxide, magnesium oxide, or calcium oxide.  The temperature is preferably raised rapidly to about 500 DEG  C., then raised slowly to about 700 DEG  C. or held for a time at a value between 500 and 700 DEG  C., and then raised rapidly to about 850 DEG  C. and held for a time at this value.  Alternatively the diffusion may be effected by bringing arsenic vapour or volatile arsenic compounds, with or without hydrogen, into contact with the heated iron.  The iron &c. is preferably heated in moist hydrogen, e.g. at 850 DEG  C. for 4 hours in the case of an electrolytically-refined iron sheet, prior to the diffusion treatment.  The treated iron is used for armatures, cores, &c. in electrical apparatus, and the iron is formed of the required thickness and shaped prior to the diffusion treatment. Specification 338,221, [Class 82 (ii)], is referred to.
Patent GB-334693-A (GB)
Title: Improvements to rubber tyres and footwear
IPC: B29D30/06
Filed: 1929-08-23
Abstract: 334,693. Frith, W. E. Aug. 23, 1929. Indiarubber, adapting for hard wear.-Rubber tyres, soles, and heels of boots and shoes &c., are covered with celluloid paint mixed with fine sand to preserve and waterproof them and to reduce any tendency to skid or slip.
Patent GB-322782-A (GB)
Title: Improvements in or relating to coin-freed apparatus
IPC: G07F17/10
Filed: 1928-09-07
Abstract: 322,782. Perlmutter, A., Burley, A. G., and Peters, S. J. Sept. 7, 1928. Ash-trays.-A coin-freed apparatus, particularly an apparatus attached to the backs of seats in theatres &c., is provided with clips c, d, Fig. 2, for holding hats and other articles, and with an ash-tray n on the top of the casing a.
Patent GB-534834-A (GB)
Title: Improved control mechanism for reversible internal combustion engines
IPC: F01L13/00
Filed: 1939-09-16
Abstract: 534,834. Reciprocating pumps for liquids. AKTIEBOLAGET GOTAVERKEN. Sept. 16, 1939, No. 25960. Convention date, Sept. 17, 1938. [Class 102 (i)] [Also in Group XXVII] In control mechanism for a reversible engine comprising a control shaft movable at will in either direction from a " stop " position and actuating means for starting, reversing, and fuel-control mechanism fuel is injected through a valve 67 by a pump 69 comprising a plunger 71 having a sloping recess 72 and adjustable about its axis, to vary the effective stroke, by means of a connecting-rod 84 carried by a crank 85 on the control shaft. The free end of the connecting-rod travels in an inclined guide 86 formed by a slot in a member 87, Fig. 8, and is connected by linkage 83-73 to the pump plunger. The member 87 is pivoted at 88 in a housing 89 and normally retained in the position shown by a spring catch 92. A rod 95 controlled by a speed governor may be connected by a link 96 to the member 87. Reciprocation of the pump plunger is effected by symmetrical cams 101, 102, on a shaft 103 adjusted for reversal by means of a bellcrank 138 actuated by a fluid-pressure piston 143, Fig. 10. An engine-driven gear wheel 104 rotatable on the shaft 103 is engaged with angular play by a clutch member 108 secured to the shaft and by a clutch member 114 slidably keyed on the shaft and displaced by the bell-crank 138. A collar 124 threaded on a collar 123 secured to the wheel 104 has a splined connection 125 with a member 114 and has a groove 126 engaged by a bell-crank 128 connected by a link 130 to a blocking member 135 pivoted at 134 and movable into two different positions in dependance on the collar 124. The member 135 co-operates with a member 165 on the control shaft 1 to prevent the shaft from being turned to the " normal running " (ahead or astern) position until the fuel pump has been set for the desired direction of running. Specification 534,833, [ Group XXVII], is referred to.
Patent GB-1274883-A (GB)
Title: Stop valve for high pressures
IPC: F16K31/40
Filed: 1969-05-21
Abstract: 1,274,883. Valves. MASCHINENFABRIK BURCKHARDT A.G. 21 May, 1969 [22 May, 1968], No. 25975/69. Heading F2V. [Also in Division G3]  A shut-off valve for high pressure comprises a valve member 3 constituted as a piston to which the inlet pressure is communicated through a restriction such as adjustable needle valve 13 to effect sealing against the inlet pressure in closed position. The pressure on the piston is relieved through an in-line pilot valve 19 connected with the valve member 3 to effect the opening and closing movements so that the valve member 3 closely follows the movement of the pilot valve. As shown the connection is through a ring 33 on the pilot valve stem engaging a flange 35 on the valve member after a clearance "x" has been taken up, and by engagement of the pilot valve with a seat 17. The pilot valve may be operated by a hand wheel 23 carried by an axially fixed nut 21. The valve position is indicated by markings 25 on an extension of the pilot stem. Alternative operating means may comprise a magnetic, hydraulic or pneumatic device e.g. of a diaphragm type (39), Fig. 2 (not shown), connected to an axially movable stem (38) of the pilot valve.
Patent GB-429148-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/28
Filed: 1934-09-10
Abstract: 429,148. Electric incandescent lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 10, 1934, No. 25996. Convention date, Oct. 3, 1933. [Class 39 (ii)] An electric incandescent lamp with a gas filling of crypton or xenon, or a mixture of both these gases, is provided with a filament wound in the form of a multiple helix within a bulb whose internal volume in cubic centimetres is less than W + 25, where W denotes the wattage of the lamp. The pressure of the gaseous filling may correspond to a mercury pressure of 40 cm. or less. Nitrogen, or argon and nitrogen, may be added to the gaseous filling.
Patent GB-166472-A (GB)
Title: An improved file for memoranda, notes and other like articles of sheet form
IPC: B42F9/00
Filed: 1920-09-09
Abstract: 166,472. Rose, A. Sept. 9, 1920. Clamping-devices; attaching files to supports.- A filo for memoranda, notes, and like sheets, of the kind formed from a single blank of sheet steel or other metal bent to form a base, an inclined spring platform connected to the base, a back, and one or more stops on the back against which the platform presses the sheets, is formed from sheet metal of stout gauge, the platform 3 being connected to the base 1 by a rounded part 5 of considerable radius recessed at its centre to give the necessary flexibility and to accommodate the thumb of the user. One or two stops 4 are formed on the back 2 as shown. The base 1 may be secured to a disc &c. by screws, the platform 3 being reoessed to accommodate the screwdriver if necessary.
Patent GB-1190957-A (GB)
Title: Triggerable Vacuum Gap Devices
Inventor: LAFFERTY JAMES MARTIN
IPC: H01T2/02
Filed: 1967-06-06
Abstract: 1,190,957. Cold-cathode tubes; vacuum switches. GENERAL ELECTRIC CO. 6 June, 1967 [21 Sept., 1966], No. 26149/67. Headings H1D and H1N. In a triggerable vacuum gap device provided with a restricted diameter nozzle leading to a central cavity containing a trigger gap for injecting a pulse of plasma into the primary gap upon receipt of an electrical signal, the trigger gap 54 is shielded by the wall 45 of the nozzle and comprises a groove scored in a coating extending over a ceramic insulator 46. The coating may be of hydrogen-storing material, such as titanium, or of metal such as copper or beryllium having a low vapour pressure. When the gap is fired a plasma is formed and the magnetic field produced by the current loop of the firing pulse propels the plasma through the nozzle. In Fig. 5, the trigger electrode 49 is cup-shaped and the trigger gap 54 is arranged vertically to give protection against the fall of liquid arc electrode material. The electrodes may be mounted rigidly in an envelope (Fig. 1, not shown), or one of them may be mounted on a bellows (Fig. 6, not shown) so that its position can be adjusted. The assembly of the complete device may be made in a hydrogen furnace in one atmosphere pressure of hydrogen so that the active gas storing material collects the trapped gas as it cools and lowers the pressure to 10<SP>-5</SP> mm. or less. Alternatively, a tubulation (23, Fig. 1) may be provided so that the device may be evacuated, filled and sealed subsequent to the formation of ceramic-to-metal seals in the envelope. If low vapour pressure metal is used the processing may be conducted entirely in vacuo.