baber/WOPTO huggingface dataset:
Patent GB-879321-A (GB)
Title: Mono-azo dyestuffs of the benzene-azo-naphthalene series and metal complexes thereof
Inventor: SUREAU ROBERT FREDERIC MICHEL
IPC: C09B62/44
Filed: 1958-05-20
Abstract: The monomaleamide of 1-amino-7-naphthol is obtained by heating, e.g. at 70-75 DEG C., an approximately equimolecular mixture of 1-amino-7-naphthol and maleic anhydride.  A solvent for the reactants, e.g. isopropyl alcohol, may be present.ALSO:The invention comprises azo dyes of the general formula:-<FORM:879321/IV(c)/1> wherein X is a hydroxyl group and the benzene nucleus A may be substituted by non-acid substituents, and metalliferous complexes of these dyes.  The nucleus A may contain chlorine, bromine, nitro, alkoxy, alkyl, acylamino, sulphonamido, alkylsulphonamido, hydroxyalkylor alkoxyalkyl-sulphonamido, morpholysulphonamido, or alkylsulphonyl groups as non-acid substituents.  The dyes may be obtained by coupling the diazo compound of an appropriate aminophenol with the monomaleamide of 1amino- 7-naphthol.  They may be reacted with chromium compounds in the presence of amides or ammonium salts of carboxylic acids, alkali metal salts of aliphatic or aromatic o-hydroxy carboxylic acids or aminocarboxylic acids, or in presence of an organic liquid such as ethylene glycol to form complex compounds.  They may be heated in alkaline media with salts of chromium, cobalt, nickel, copper, iron, or manganese.  The unmetallized dye may be reacted with a metallizing agent in presence of another metallizable dye, or with a metallized dye containing one atom of metal per molecule of dye.  Complexes of chromium or cobalt containing less than one atom of metal per molecule of dye are preferred for the dyeing of animal fibres or fibres of polyamides or polyurethanes.  Examples describe the production of dyes of the stated formula using diazo components obtained from 4-isopropylsulphonamido-, 4-nitro-, 5-nitro-, 4chloro- 5-nitro-, 4-sulphonamido-, 4-chloro- 5sulphonamido-, and 4-methylsulphonyl-2-aminophenol, and the production of metal complexes of these dyes using sodium chromo-salicylate or sodium cobalt tartrate as metallizing agent. In one example, a solution containing the sodium salt of the dye 2-amino- 4-isopropyl-sulphonamido-phenol --> 7-naphthol- 1-maleamic acid and the sodium salt of the dye 2-amino- 5-nitrophenol --> b -naphthol is heated with a solution of sodium chromosalicylate to form a metal complex which dyes wool a blue-grey shade from neutral or weakly acid baths.  Similar complexes in which the second component dye is 2-amino4-nitro-phenol --> b -naphthol, 2-amino- 4-nitrophenol --> 1-phenyl- 3-methyl- 5-pyrazolone, or 4-chloro- 2-amino- 5-sulphonamido-phenol --> 1-(31-trifluoromethyl-phenyl)- 3-methyl- 5-pyrazolone, are specified.
Patent GB-830882-A (GB)
Title: Improvements in or relating to the isomerization of n-paraflinic hydrocarbons and catalysts therefor
IPC: C07C5/27
Filed: 1958-05-21
Abstract: A catalyst for use in isomerizing C4-C9 n-paraffins, comprises 0.01-2 (preferably 0.1-2, particularly 0.1-0.75)% of a Pt group noble metal (preferably Pt, but also Pd, Rh, Ru, Os, Ir), 2-50 (preferably 10-30)% of an Al halide Friedel-Crafts component (preferably AlCl3, but also AlF3, AlBr3 or any such halide wherein the halogen is partially replaced by another radical such as OH), 0.5-15% of a hydrogen halide (preferably HCl) and 40-95% of an activated alumina. The hydrogen halide component is usually added in the isomerization reactor, conveniently by including 0.05-35 (preferably 0.5-5)% of said halide, or a hydrogen halide producing material, in the n-paraffic feed; said material is preferably CCl4, but includes Cl2, Br2, F2 and halo-alkanes such as CHCl3 and (CH3)3CCl. The alumina is preferably derived by calcination of a precursor which comprises 65-95% trihydrate (one or more of bayerite I, bayerite II or gibbsite) and 5-35% monohydrate (boehmite), amorphous hydrous alumina or mixtures thereof; optional ingredients are oxides such as SiO2, MgO, B2O3, TiO2 and ZrO2, and natural or activated clays (e.g. kaolinite, montmorillonite, halloysite) or mixtures thereof.  The activated alumina has preferably an area of 350-550 sq.m./gm. U.S.A. Specifications 2,733,219 and 2,798,105 are referred to.ALSO:C4-9 n-alkanes are isomerized in the vapour phase by contact at 150-450 DEG  F. (preferably 250-400 DEG  F.) and in presence of free H2, with a catalyst comprising 0.01-2% Pt group noble metal (preferably Pt), 2-50% Al halide Friedel-Crafts component (preferably AlCl3), 40-95% activated Al2O3 and 0.5-15% hydrogen halide, the latter component being supplied in the gas stream in the amount of 0.05-35% thereof; the hydrogen halide may be provided by a precursor such as CCl4 in the feed.  In examples, n-pentane gave 65-76% i-pentane; n-butane, 46.4% i-butane; n-hexane, 96.8% i-hexanes; and a hydrogenated C5-6 straight-run gasoline cut containing an estimated 35% C5 paraffins, 60% C6 paraffins and balance naphthenes gave 15.8% i-pentane, 51.3% i-hexanes, 19.3% n-pentane and 7.7% n-hexane.  U.S.A. Specifications 2,733,219 and 2,798,105 are referred to.
Patent GB-1501241-A (GB)
Title: Method for pasting battery plates
Inventor: PANKOW HERBERT G
IPC: H01M4/04
Filed: 1975-04-21
Abstract: 1501241 Coated lead substrates GATES RUBBER CO 21 April 1975 [23 April 1974] 16370/75 Heading B2E A method for applying an electrochemically active thixotropic paste onto a deformable porous lead substrate having interstices comprises discharging at a predetermined rate of volume flow a paste onto the substrate without materially deforming the substrate and moving the thus pasted substrate through the nip of a set of driven rolls which are spaced apart a predetermined distance thereby compressing the paste into the interstices of the porous substrate to produce a plate of desired thickness, width and density of paste. The paste may be of lead oxide and an aqueous vehicle. The substrate is preferably lead of a purity of at least 99.9%. A thin, flexible material resistant to adhering to the paste may be fed into the nip of the rollers to separate the pasted substrate from the rolls.
Patent GB-140946-A (GB)
Title: Improved apparatus for mash filtration
IPC: B01D25/12
Filed: 1919-06-30
Abstract: 140,946. Crossman, J. G. June 30, 1919. Filter-presses of the type in which the plates are horizontal and have integral bosses forming pipes when assembled, consist of plates and frames separated by cloths. Small passages m lead from one side of the plates to one pipe o, and passages n from the other side to the other pipe p. Cocks m<1>, n<1> are interposed in order that the passages may be put into communication with the outer air instead of the pipes.
Patent GB-229927-A (GB)
Title: Method of compensating different copying densities of cinematographic picture film ribbons
IPC: G03C5/12
Filed: 1924-07-09
Abstract: 229,927. Lehmann, E. July 9, 1924. Kinematograph picture films; negatives, colouring to control printing exposure.-A method of determining the intensity of staining of kinematograph negative films necessary to compensate for differences in printing density, ; o that changes in the intensity of the printing- light are rendered unnecessary, consists in producing a graduated screen formed of transparent coatings or layers which are progressively and increasingly stained, making test prints from the films behind this scale, and developing These prints uniformly. The films are then stained to an intensity corresponding with that of the test-prints which exhibit the required degree of transparency. The scale is preferably so made that the quantity of colouring material in the layers varies uniformly from stage to stage.
Patent GB-716617-A (GB)
Title: Improvements in machines for cutting and windrowing peas, cereals, grasses and the like
IPC: A01D57/20
Filed: 1951-07-12
Abstract: 716,617. Cutting and windrowing machines. McBAIN, A. Oct. 10, 1952 [July 12, 1951], No. 16527/51. Class 6 (3) The frame 10 of a windrowing attachment for a tractor is pivoted at a point 27 arranged well forward of the frame at the ends of arms 22 extending from brackets 23 adapted to be attached to the tractor axle. The arrangement of the pivot results in a floating action of the frame, this action being assisted in the construction shown by a spring 26. The peas, cereals, or grasses to be cut are fed by a reel 14 to the cutting device 18 and deposited in a windrow by a laterally-moving conveyer 11. The reel and conveyer are driven as shown through the medium of a shaft 12 driven from the power take-off shaft or from the wheel axle, and the knife 18 by a crank connected to a wheel on the conveyer shaft. The frame may be lifted by links 25 connected to hydraulic lift arms 28.
Patent GB-1131630-A (GB)
Title: Magnetron oscillator
IPC: H01J23/10
Filed: 1966-04-15
Abstract: 1,131,630. Magnetrons. DMITRY EVDOKIMOVICH SAMSONOV. 15 April, 1966, No. 16633/66. Heading H1D. The efficiency of a high-frequency multicavity magnetron is increased by arranging that the distance between the opposed faces of the magnetron polepieces diminishes from the axis to the periphery of the polepieces, whereby the magnetic field intensity at the cathode is less than that at the anode. As described, the magnetic field variation is provided by a pair of polepieces of which one has a central recess, and the other a similar recess formed by a sunken iron insert surrounded by a tuning member. Both poles are additionally provided with an axial bore.
Patent GB-166981-A (GB)
Abstract: 166,981. Berg, G. F. April 27, 1920. Locomotive-type boilers; composite boilers.-In a locomotive boiler having a fire-box and combustion chamber formed of water-tubes connected to water and steam drums, the water drums being in free communication, with the cylindrical body of the boiler, the steam spaces, of the steam drums and of the body so connected as to maintain the water in the watertube and body sections at different levels. A partition 39, Fig. 1, in front of a steam chamber 36, which projects above the rear of the body section 30, and which is in communication through the dome with the drums of the watertube section, extends down to the low-water level in the body section so that steam' passes under the partition when the water-level is lowered by a rise of pressure. Steam normally passes into the dome through a valve 43 so controlled by a float 44 as to allow sufficient steam to escape to the dome to balance the pressure in the two steam spaces. The valve is placed in a chamber having an annular entrance 47, which is closed when the level in the body rises above the normal. In a modification, the valve is dispensed with, and the body steam space is placed in communication with the dome through a number of narrow tube-like passages formed by concentric thin plates 49, Fig. 9, having radial ribs. The entrances at the bottom of the passages are stepped so that as the water level is lowered due to a rise of steam pressure, an increasing number of passages are opened for the escape of steam. The low level at the front of the boiler is limited by means of a partition 53, over which is placed a small dome 54 in communication with the main dome. The water-tubes 17, 18, Fig. 2, forming the sides of the fire-box, are so arranged as to divide the fire-box into two separate combustion spaces. Alternate tubes are bent inwards to form supports for fire-bridges 25. The gases pass into the combustion chamber 31 through tubes 35 in the front fire-box wall 1. Cinders are withdrawn from the bottom of the combustion chamber by removing a door 33. The drums are freely supported at one end to allow for expansion and contraction. The rear wall 2 is connected to the drums by water and steam pipes 14, 16. The front parts of the fire-grates may be made to turn inwards to provide an opening- for the removal of cinders in clearing the fire.
Patent GB-167928-A (GB)
Title: Method of and apparatus for transporting material
IPC: B65G53/58
Filed: 1920-06-21
Abstract: 167,928. Hebert, U., Busso, E., O'Connor, J. J., and Courtney, H. C. June 21, 1920. Pneumatic conveyers and elevators. - Granular or pulverulent material is drawn in through a pipe attached to the inlet 12 and transmitted through a pipe connected to the outlet 13 by two or more convergent jets of steam issuing from nozzles 17. If a sufficiently large suction pipe and a small amount of lowpressure steam are used, the apparatus removes snow from roads and delivers it as water.
Patent GB-892104-A (GB)
Title: Crank handle or like operating knobs
IPC: G05G1/08
Filed: 1959-05-15
Abstract: 892,104. Knobs. HAPPICH G.m.b.H., GEBR. May 15, 1959 [May 16, 1958; July 18, 1958; Dec. 3, 1958; March 20, 1959], No. 16795/59. Class 52(1) A cupped or domed knob for a vehicle window crank or a dashboard switch comprises a relatively thick base for attachment to the crank pin or switch spindle and relatively thin side walls, the base and walls being of flexible resilient material. As shown in Fig. 1, the one piece knob has a base 3 secured to pin 2 on crank 1 and ribbed side walls 4. The upper part of the side walls may be inturned and secure in place padding material or a concave or convex cover or both. As shown in Fig. 6, the base 14 is formed of relatively rigid material and the side walls 15 have a tongue and groove connection with the base and are moulded integrally with a cover 16. Padding may be inserted through hole 10. As shown in Fig. 21, the concave cover 49 is held in a groove 7<SP>11</SP> in the side walls 4 and itself has a groove 51 receiving detachably a decorative ring 52.
Patent GB-278782-A (GB)
Title: Improvements in or relating to valves
IPC: F16K27/02
Filed: 1926-07-05
Abstract: 278,782. Dewrance, Sir J., and Wickham, O. July 5, 1926. Lift valves; casings.-A screw-down valve for controlling the passage of liquid to and from a tank &c.. comprises a casing 10 having a seating 5 which lies within, or in the plane of the wall of, the tank &c. A flange 4 and a screwed spigot are provided for alternative fixing to the tank &c. wall. The spindle 7 is packed by a packing gland 8 coaxial with the spigot 1 and the connection 9 for the liquid is disposed to one side of the axis, as shown. Reference has been directed by the Comptroller to Specifications 255/98 and 11862/12.
Patent GB-362866-A (GB)
Title: Improvements in devices for firing through the propellors of aircraft with automatic firearms
IPC: F41A17/58
Filed: 1930-05-31
Abstract: 362,866. Machine guns. S.A.F.A.T. SOC. ANON. FABBRICA ARMI-TORINO, 9, Via Bordoni, Milan, Italy. May 31, 1930, No. 16927. Convention date, June 1, 1929. Void [Published under Sect. 91 of the Acts]. [Class 92 (ii).] Apparatus for synchronizing the fire of machine guns between the propeller blade:3 of aircraft includes a member 14 which is actu. ated from the propeller shaft and which is prevented from operating the gun sear 9 except when the breech-block 2 is in closed position. The sear is operated from the member 14 through the medium of a spring- controlled slider 12 the sear-operating end 16 of which can rock transversely about a pivot 17 under the influence of a pawl 19 bearing on the upper surface of the breech-block. When the breech is in closed position, the pawl enters a recess 2<11>, and the member 16 falls into position for engaging the sear. When the breech is open, the pawl is supported on the upper surface of the breech-block and raises the member 16 so that it cannot engage the sear.
Patent GB-596997-A (GB)
Title: Improvements in portable stroboscopic device for checking electric meters
IPC: G01P21/00
Filed: 1945-07-03
Abstract: 596,997. Testing and calibrating instruments and meters. UNION D'ELECTRICITE. July 3, 1945, No. 16980. Convention date, Nov. 15, 1940. Addition to 462,104. [Class 37] [Also in Group XX] In a stroboscopic device for testing electric meters of the type described in the parent Specification in which a casing containing a standard meter is placed beneath the meter under test and contains a lamp light from which illuminates the underside of the disc of the tested meter and is periodically interrupted by teeth on the edge of the rotating disc of the standard meter, an image of those teeth is projected on to the disc of the meter under test or an image of similar fixed teeth is projected on to the disc of the standard meter. The teeth comprise photographic images on a film as described in the parent Specification. As shown a fixed film 40 is illuminated by lamp 41 and condenser 42 and a lens 43 projects an image of the teeth on to a film 44 carried by the disc of the standard meter. The spacing of the teeth in the image is the same as that on the film 44 so that the beam is interrupted as the film 44 rotates. In an alternative the film 40 may be omitted and an image of the teeth on the film 44 projected directly on to the disc of the meter to be tested. The Specification as open to inspection under Sect. 91 describes a main switch placed beneath the meter and having plugs with which corresponding members of the test casing are engaged to complete the necessary circuits automatically. Fig. 3 (Cancelled) shows the circuit of the standard meter which comprises a voltage winding 18 and current winding 17 connected to plugs 13, 14, 15, 16 adapted to engage corresponding contacts 13<1>, 14<1>, 15<1>, 16<1>, Fig. 4 (Cancelled), in the main switch 23 which is connected to the load 25, 25<1> and to the voltage winding 18<1> and current winding 171 of the meter under test, the latter being connected with the mains 26. On plugging the test casing on to the switch, the standard meter rotates, the lamp is energized and testing proceeds. A switch 33 selecting taps in the voltage windings 18 permits variation of the speed of the standard meter between two predetermined limits of error, and one or more resistances 19, 19<1>, 19<11> may be put into circuit by push-buttons 20, 20<1>, 20<11> to test under different loads. A switch 34 and a resistance 35 permit the meter to be tested under small load, the main switch 23 being open. This subject-matter does not appear in the Specification as accepted.
Patent GB-515632-A (GB)
Title: Improvements in and connected with the moulding or forming of refractory bricks
IPC: B28B3/00
Filed: 1938-06-08
Abstract: 515,632. Presses for moulding refractory bricks. TUGWOOD, R. J. (Metallfrax Akt.- Ges.). June 8, 1938, No. 17027. [Class 87 (ii)] In manufacturing refractory bricks for furnace linings, crucibles and other high-temperature purposes, such as chrome or magnesia bricks, forming pressure is applied by operating rotary driving mechanism of a brick-forming press at a slower angular speed during pressure or maximum pressure period than during the remainder of the cycle, the maximum pressure being in excess of 1000 lbs. per sq. in. The angular speed may be less than 60 per cent. of the maximum angular speed attained and may be applied for a period less than 60 per cent. of the cycle time which is preferably less than 15 seconds. The press comprises a mould and plunger operated by a crank and connecting rod driven by spur gearing from shafting extending between high and low speed driving devices between which an over-running or electro-magnetic clutch is provided. A releasable clutch is provided between the high-speed drive and the over-running clutch. The releasable clutch may be electromagnetic and controlled as by contacts on the crank shaft operating a relay circuit at points in the cycle. In another form the high speed drive motor may be operated directly by an electric switch. In another form the press is driven directly from a variablespeed motor. An electrically-controlled mechanical brake may be provided to facilitate changing to lower speed.
Patent GB-1150692-A (GB)
Title: Apparatus for Coupling together Cargo Container Handling Spreaders
Inventor: CALLOW JOHN FREDERICK
IPC: B66C13/00
Filed: 1968-04-09
Abstract: 1,150,692. Spreaders for lifting containers. VICKERS HOSKINS PTY. Ltd. 9 April, 1968, No. 17045/68. Heading B8H. [Also in Division E2] A pair of spreaders B, Fig. 1, for lifting containers 30 are coupled together and held a predetermined distance apart by a coupling frame C. The frame has downwardly directed prongs 51, Fig. 5, which are inserted through guides 74, Fig. 3, into adjustable latching members on the spreaders. The latching members are mounted on pivoted links 63, 64 and moved longitudinally of the spreaders, to adjust the spacing between adjacent spreaders, by rams 66. When the containers are lowered into cells in the hold of a ship buffer pads on the coupling frame abut the top of the cell structure and the coupling frame is withdrawn as the spreaders descend and remains in position on top of the cells until the spreaders are raised again. The top of the latch member comprises three plates 69, 70, 71, Fig. 3, through which the prongs 51 pass. The centre one of these plates is moved laterally with respect to the other two by a ram to diminish the size of the prong receiving holes.
Patent GB-165330-A (GB)
Title: Improvements in double-acting internal combustion engines
IPC: F02B75/00
Filed: 1920-06-23
Abstract: 165,330. Drill, C. June 23, 1920. Valves.-A double-acting engine draws a charge into the cylinder through the valves 18 after the piston has passed the exhaust valve when the charge has expanded down to atmospheric pressure. The valves are controlled by dash pots 22 with adjustable needle valves 24.
Patent GB-750419-A (GB)
Title: Improvements in or relating to roof supports for use in mines
Inventor: STEVENS FREDERICK CHARLES
IPC: E21D15/44
Filed: 1953-06-19
Abstract: 750,419. Hydraulic mine roof props or chocks. AUTOMOTIVE PRODUCTS CO., Ltd. Sept. 20, 1954 [June 19, 1953], No. 17069/53. Class 20(2). A hydraulic ram and cylinder mine roof prop or chock comprises a hydraulic accumulator 23 adapted to be connected by a valve 27 to an auxiliary cylinder 21 to engage the prop or chock with the mine roof while liquid flows from the reservoir 20 in the main ram 14 through a valve 29 into the main ram chamber 19 and finally a valve 28 is opened to connect the accumulator to the main ram chamber 19 to apply pressure. Subsidence of the mine roof forces the ram 14 downwardly which charges the accumulator. Before the support is released by release valve 32 the accumulator is closed off by the valve 27 and the two ram chambers 19, 21 are connected to one another. The support shown is a chock the main ram 14 of which operates in an annular chamber the centre of which forms the cylinder 13 of the auxiliary piston 17, which is contained in a coaxial recess in the ram 14, which is in free communication with the annular chamber. The chock may also be extended by means of a manual pump 33. In a prop the accumulator is an extension of the upper end of the ram and the auxiliary cylinder is in the ram and the end of its piston engages the cylinder.