baber/WOPTO huggingface dataset:
Patent GB-1144890-A (GB)
Title: Process for developing latent electrostatic images and apparatus for use therein
IPC: G03G15/10
Filed: 1966-08-19
Abstract: 1,144,890. Electro-photographic development. KALLE A.G. Aug. 19, 1966 [Aug. 21, 1965], No.37289/66. Heading G2H. [Also in Division B2] A latent electrostatic image on a material is developed by feeding the material by rollers 3 via a guide 4 through at least one jet of developer liquid from one or more nozzles 1, and removing excess developer by rollers 5 (which rollers may be flushed with developer between development by the use of an appropriate deflector 9); the jet of developer is in the form of a uniform curtain of liquid of uniform height, being at least as wide as the material to be developed, and having, when unimpeded a parabolic trajectory, the distance h between the apex of the trajectory and the plane in which the material is developed being 10 to 70 mm. In a modification, Fig. 4, the material to be developed is transported by a movable suction device 22 against the force of a fixed suction device 21; the jet 15 of developer liquid is produced by spraying liquid from a reservoir 17 by a pump 16 through a nozzle 12 on to a curved, preferably parabolic, deflector plate 14 which may have ribs (25a) or projections (25b) to widen the jet produced. The nozzles used may have a slit orifice, or one or more rows of circular orifices, preferably adjacent baffles; alternatively the baffles may be used alone. The apparatus is preferably used for reversal development.
Patent GB-984730-A (GB)
Title: Rapidly curable polyester resins
Inventor: DEMMLER KURT
IPC: C08K5/13
Filed: 1963-09-24
Abstract: Polyester resins containing one or more ethylenically unsaturated polymerizable polyesters, one or more monomeric ethylenically unsaturated polymerizable compounds, and one or more amines as polymerization accelerators contain one or more derivatives of hydroquinone as polymerization inhibitors, at least one of the hydroquinone derivatives having the formula <FORM:0984730/C3/1> where R1 is a hydrocarbon radical having 4 to 10 carbon atoms, R1 and R2 each denote hydrogen or an alkyl group having 1 to 4 carbon atoms. Hydroquinone derivatives of the above formula mentioned are (a) compounds containing the skeleton of a 1,4-dihydroxy-5,8-dihydronaphthalene, which may be obtained by the intramolecular re-arrangement in acid medium from Diels-Alder adducts of 1 mol. of r -benzoquinone or (C1 to C4 alkyl)-r -benzoquinone and 1 mol. of a diene having a conjugated double bond, e.g. 1,4-dihydroxy-5,8-dihydronaphthalene; 1,4 - dihydroxy - 5,8-endomethylene - 5,8 - dihydronaphthalene; 1,4 - dihydroxy - 5 - methyl - 5,8 - endomethylene -5,8 - dihydronaphthalene and 1,4 - dihydroxy - 5,8 - endoethylene - 5,8 - dihydronaphthalene; (b) compounds which contain the skeleton of a 1,4-dihydroxy-9,10 dihydrophenanthrene, which may be obtained by intramolecular re-arrangement in acid medium from Diels-Alder adducts of 1 mol. of r -benzoquinone or (C1 to C4 alkyl)-r -benzoquinone and 1 mol. of styrene, e.g. 1,4-dihydroxy-9,10-dihydrophenanthrene; 2 - methyl - 1,4 - dihydroxy - 9,10 - dihydrophenanthrene and and 3-methyl - 1,4 - dihydroxy - 9,10 - dihydrophenanthrene; (c) compounds which contain the skeleton of a 1,4-dihydroxynaphthalene, e.g. 1,4-dihydroxynaphthalene itself and 1,4-dihydroxynaphthalenes in which one or two hydrogen atoms not belong to the hydroxyl groups are replaced by C1 to C4 alkyl groups.
Patent GB-362674-A (GB)
Title: Improvements in or relating to the closuring of boxes or containers for pulverulent materials
IPC: B65D51/18
Filed: 1930-12-12
Abstract: 362,674. Boxes for powder &c. CALVERT & CO., Ltd., F. C., Bradford, Manchester, and FOSTER, B. LE N., The Obelisk, Knutsford, Cheshire. Dec. 12, 1930, No. 37509. [Class 18.] A box containing dental powder &c. is provided with an imperforate inner wad or cover a of dished formation having an upstanding peripheral flange b snugly engaging the inner surface of the mouth of the box so as to prevent leakage of the powder past the wad or cover ; the lid e when placed on the box engages the flange b and prevents movement of the wad or cover.
Patent GB-1019547-A (GB)
Title: Rotary print head with selected character forming dies
IPC: B41J2/50
Filed: 1964-09-15
Abstract: 1,019,547. Selective printers. GENERAL PRECISION Inc. Sept. 15, 1964 [Oct. 4, 1963], No. 37649/64. Heading B6F. In a high-speed printer operating from an electrical pulse input or a keyboard the character types are formed by four type elements 30, 32, 34, 36, Fig. 3, which are longitudinally moved to effect impression in a type-head 18, Fig. 5, which is rotated as a whole once for each character formation. A character is formed by the selective operation of the various elements in each of four angular positions. The elements 30-36 are biased away from a stationary platen 56 by springs 60, 62 and are bounced to effect printing by solenoids 64, 66, 68, 70, as determined by input signals coming to a logic network 200, Fig. 9, and by the correct rotative position of the type-head 18. This is controlled by a disc 100 having a light slot 102 and four photodiodes 110, 112, 114, 116. Four of the logic circuits are appropriate to each of the four rotative positions of the type-head 18 and each of the four circuits in each position is relevant to a particular type element. To print the letter A, Fig. 4, it is necessary to operate logic 1, 2, 4, 5, 6, 12, 13, 14 so that the letter A is built up in the manner shown in Fig. 4; i.e. elements 30, 32, 34 operating in 0 degrees position, elements 30, 32 in 90 degrees position, element 34 in 180 degrees position and elements 30, 32 again in 270 degrees position. The type-head is rotated by a motor 22, and the record tape 50 and ink ribbon 44 fed either in a continuous or step-by-step manner by a motor 52 and gear-box 54.
Patent GB-988257-A (GB)
Title: An apparatus for heating in counter-current fine granular material
IPC: F27B7/20
Filed: 1961-10-20
Abstract: 988,257. Preheating and charging cement raw materials. KLOCKNER-HUMBOLDTDEUTZ A.G. Oct. 20, 1961 [Oct. 22, 1960], No. 37694/61. Heading F4B. In apparatus for heating a fine granular material, e.g. powdered cement raw material, which flows downwardly in countercurrent to a hot gas flow passing helically up through a vertical cylindrical tube 7 which opens at its base into the top of a cyclone 3 of greater diameter than the tube, the hot gas is introduced tangentially into the cyclone and the heated material is withdrawn from the tip of the cyclone. As shown, hot gas from a rotary kiln 1 passes through a duct 2 into the cyclone 3, and up the tube 7 into an upper cyclone 8, from which it passes through a conduit 9, a dust separating cyclone 10, a conduit 11, and a fan 12, into an electrostatic precipitator 13. A fan 15 draws some of the gas from the conduit 9 through a branch duct 14 and passes it via a duct 16 to enter the cyclone 8 tangentially. Fresh material to be heated passes from a hopper 27 through a bucket wheel 26 and a pipe 25 into the duct 16, and is carried by the gas flow therein into the cyclone 8, from which it sinks down in a helical path against the walls of the tube 7. Annular or spiral projections 33 may be provided in the tube 7 to slow the descent of material. The heated material separates from the hot gases in the cyclone 3, which it leaves via a flap valve 31, some passing through a duct 4 into the kiln, the rest being turned into a tube 5 by an adjustable valve 6 to enter the duct 2 and pass back into the cyclone 3. Material carried into the cyclone 10 passes by a flap valve 29 and a pipe 28 into the pipe 25, or the duct 2, or the kiln 1, and dust from the precipitator 13 is similarly returned to the system.
Patent GB-930931-A (GB)
Title: Improvements in or relating to alkali metal carbonate manufacture
IPC: C01D7/07
Filed: 1959-11-06
Abstract: <PICT:0930931/III/1> Alkali metal carbonates are produced by "particlizing" an aqueous solution, or suspension, of an alkali metal hydroxide in an atmosphere containing CO2 at a temperature of at least 200 DEG F. to cause reaction and formation of the corresponding alkali metal carbonate in dry particulate form under such conditions that a bed of carbonate particles is not formed.  As shown, a solution or suspension of alkali metal hydroxide, e.g. NaOH, particularly a solution containing 50% wt. alkali metal hydroxide is fed through lines 12, 16 by pump 14 into the drying chamber 10 of a spray drier, where it is particlized at 18 by passage through a spray nozzle or impingement with a rotating atomizer wheel or propeller. Combustion gases containing CO2 produced by burning fuel oil with air in heater 6 together with CO2 from line 2 are fed into the drying chamber through line 8.  The CO2 feed in line 8 may consist wholly of CO2 from line 2 heated indirectly by combustion of fuel oil in 6. Temperatures of at least 200 DEG F., e.g. above 300 DEG F., and preferably 400 DEG F. are produced in drying chamber 10 and particlized alkali metal hydroxide solution reacts with CO2 to form alkali metal carbonate solution which is simultaneously evoporated to dryness to produce dry particulate carbonate.  A major portion of the carbonate collects at the bottom of the drying chamber and is removed through line 20 and by air transport in line 22 to be finally isolated in cyclones 34, 36 and removed as final product at 38.  The proportion of CO2 employed is preferably in stoichiometric excess, e.g. 10-30% excess, of that required for complete reaction with the alkali metal hydroxide.  The remaining minor portion of carbonate entrained in the gases leaving the drying chamber is separated in main cyclone 26 which may be one of a plurality of series connected cyclones.  Exhaust gases are removed from cyclone 26 through lines 30, 46 by pump 32.  In order to recover carbonate entrained in the transport air leaving cyclone 34 the air is returned through lines 40, 44, 24 by pump 42 to cyclone 26 for further separation.  The particle diameter and bulk density of the carbonate product may be controlled by variation of the initial particle size of the alkali metal hydroxide solution, the temperature, and recycle of some or all of the carbonate product as a slurry in the alkali metal hydroxide feed to chamber 10.  Particle diameters of 0,149-,004 mm. and bulk densities of 1000-400 g/l are referred to.  Specification 776,331 is referred to.
Patent GB-647823-A (GB)
Title: Improvements in or relating to machine tools for relieving form cutters, hobs and the like
IPC: B23B5/42
Filed: 1946-12-24
Abstract: 647,823. Lathes. HOLBROOK MACHINE .TOOL CO., Ltd., and HOLBROOK, R. E. Dec. 24, 1946, No. 37901. [Class 83 (iii)] A machine tool, for relieving form-cutters &c. and having a cam wheel controlling relieving motion of the cutting-tool 13 with the aid of a lead-screw-operated differential 20, comprises the provision of an additional manually-operated control 21 which is connected to the cam-drive and is operative during working to vary the speed of the cam-wheel, thereby to vary location of the relieving cut circumferentially of the work-piece. The cam wheel is driven from the lead-screw 19 of a lathe through the two differentials 20, 21, the cage of the latter being rotatable by hand wheels 39, 40 on a worm-shaft 36. The saddle 12 carries a turntable 41 wihch enables the tool to be swung through 180 degrees for right- or lefthanded cutters to be relieved. The turn-table 41 carries a relieving-slide 47 on which is mounted a follower maintained in contact with the cam wheel by springs anchored on the turn-table. Bolted to the relieving-slide 47 is a plate 57 which slidably supports at its outer end a bar 74 to which is adjustably attached a, form cam 56 which modifies the tool movement according to the shape of the work-piece. The bar 74 is mounted on rollers engaging guides 60 which are bolted to the machine-bed or an overhead carrier &c. and which thus enable the form-cam to follow the relieving-motion but not the movement of the saddle 12. A follower 55 engages the form cam 56 and is mounted on a tool-slide 51, the tool 13 being mounted thereon by the compound slides 52, 53 (Fig. 7). The follower 55 and cam 56 are maintained in engagement by springs 67 attached to the plate 57. The slides 47 and 51 are mounted on rollers 45, 58 to assist in overcoming steep portions of the cams.
Patent GB-1368753-A (GB)
Title: Electron multiplers
IPC: H01J43/24
Filed: 1972-05-19
Abstract: 1368753 Electron multipliers MULLARD Ltd 19 May 1972 [12 Aug 1971] 37913/71 Heading H1D In an electron multiplier comprising a number of channels inclined at an angle, e.g. 13 degrees, to the axis of the multiplier, the conductivity of the surface of each channel is greatest in the region of maximum inclination and least in the region of small or zero inclination. In one example the channels are of square section with two sides inclined to the axis having high conductivity and secondary emission, and two sides parallel to the axis having a low conductivity so that they do not distort the equipotential lines which remain substantially parallel to the end surfaces of the multiplier. In a further example the channels are of hexagonal section with two sides parallel to the axis of low conductivity and the other four sides of high conductivity. Electrode processing.-A square section channel is formed from four parallel glass strips of either rectangular or mitred section and formed either of a single piece of glass or as a laminate of two different glasses. Opposed strips are identical, and adjacent strips may have a composition which is similar but differs in that the surface conductivity is very different after the material has been subjected to chemical reduction. A single channel may be drawn down, but preferably several are assembled and drawn down together to facilitate correct alignment. After producing a boule of parallel fibres, the boule is sliced at the required angle, the cores (if any) are removed, the conductive surfaces are provided in the channels (for example by chemical reduction), and input and output electrodes are provided on the faces. The multiplier may be used in an image converter or intensifier tube, a camera tube, or a display tube.
Patent GB-1318116-A (GB)
Title: Explosives and the preparation and use thereof
IPC: F42D3/00
Filed: 1970-08-06
Abstract: 1318116 Explosive compositions NISSO KENZAI KOGYO CO Ltd 6 Aug 1970 [2 May 1970] 37919/70 Heading C1D An explosive composition comprises a solidified mixture of 20-80% by weight of an explosive ingredient and 80-20% by weight of cement or calcined plaster. The composition has a "force value" below 9000 and preferably below 4000 litre-kgms./cm.<SP>2</SP>, a detonation velocity D of 4000-8500 m./sec., a specific gravity p greater than 1À3 and a value of pD<SP>2</SP> in the range 30-130 (kgms./sec.)<SP>2</SP>. The explosive ingredient may be powdered RDX, PETN, TNT, HMX, picric acid, or tetryl; this powder is mixed in the presence of water with alumina cement, magnesia cement, Portland cement, or plaster (calcined gypsum). Alternatively, the explosive powder may be mixed with litharge cement which comprises PbO and glycerine. To increase the specific gravity, powdered iron, iron oxide, Al 2 O 3 , MnO, TiO 2 , ferrosilicon, or stone may be added. The composition may be placed in a borehole in a block of concrete, mortar, or granite and surrounded in the hole by a highly compressible material having a "shock impedance" greater than 1400 m./sec., for example water, cement or gypsum slurry, or solutions of zinc, calcium, or sodium chloride, or sodium perchlorate. On explosion there is little scattering of pieces of material and the sound of the explosion is reduced. The explosive may be built into a structure reinforced by steel wool or wire nets, which structure has later to be demolished.
Patent GB-1032120-A (GB)
Title: High pressure hose fittings
Inventor: DRYSDALE JOHN
IPC: F16L33/207
Filed: 1962-10-06
Abstract: 1,032,120. Pipe couplings. CABLE COVERS Ltd. Oct. 21, 1963 [Oct. 6, 1962], No. 37929/62. Heading F2G. A high-pressure hose fitting comprises a nipple 2 inserted in the end of a hose pipe consisting of an inner tube 14, a braided reinforcement 15, and an outer sheath 16, an electrically insulating washer 18 around the nipple at the front end of the hosepipe, and a socket 1 with internal teeth 7 of the form of screw-threads, which are swaged on to the hose, a reduced diameter portion 6 of the socket being swaged into a recess 11 around the outside of the nipple and the socket and nipple being insulated from the braided reinforcement 15 by the washer 18. A domed head 13 in front of the nipple carries a capnut 4.
Patent GB-877274-A (GB)
Title: Improvements in or relating to refrigerators
Inventor: SMITH REGGIE
IPC: F25B25/00
Filed: 1958-11-25
Abstract: 877,274. Refrigerators. GENERAL ELECTRIC CO. Ltd. Nov. 25, 1959 [Nov. 25, 1958], No. 37932/58. Class 29 In a refrigerator, the storage compartment 2 of which is cooled by the evaporator 1 of e.g., an absorption system, the freezer compartment 3 is cooled by the cold junctions of a thermoelectric system 6, the hot junctions of which are cooled by evaporator 1.
Patent GB-368422-A (GB)
Title: Improvements in or relating to compositions for use in the treatment of rubber and other plastic masses
IPC: C08K9/04
Filed: 1930-12-16
Abstract: Colouring matters, dyes, accelerators, &c. are added to rubber and like plastic masses, such as linoleum masses, by first forming the dyes &c. into a paste with a fatty alcohol containing more than 8 carbon atoms, and then incorporating the paste with the rubber &c.  A homogeneous dispersion of fillers in a finely divided state is obtained, and in the case of carbon black, it is possible to increase the content beyond that which can be reached in the absence of fatty alcohols.  It is stated that the alcohols not only assist in the incorporation of the anti-agers, accelerators, &c., but increase the specific effect of these bodies.  In an example 24 parts of soot are ground with 1,2 parts of octodecyl alcohol and added to 75 parts of a usual rubber mix.  In the case of dyestuffs 2 parts of dye to 1 part of alcohol is used.  For inorganic pigments smaller amounts of alcohol, e.g. 20 parts of iron oxide red to 2 parts of alcohol is suitable. Specifications 125,696, [Class 70, Indiarubber &c.], and 318,937, [Class 95, Paints &c.], are referred to.ALSO:Colouring matters, dyes, accelerators, &c. are added to rubber and like plastic masses such as linoleum masses by first forming the dyes &c. into a paste with a fatty alcohol, containing more than 8 carbon atoms, and then incorporating the paste with the rubber &c.  A homogeneous dispersion of fillers in a finely divided state is obtained, and in the case of carbon black, it is possible to increase the content beyond that which can be reached in the absence of fatty alcohols. It is stated that the alcohols not only assist in the incorporation of antiagers, accelerators, &c., but increase the specific effect of these bodies.  In an example 24 parts of soot are ground with 1-2 parts of octodecyl alcohol and added to 75 parts of a usual rubber mix.  In the case of dyestuffs 2 parts of dye to 1 part of alcohol is used.  For inorganic pigments, smaller amounts of alcohol, e.g. 20 parts of iron oxide red to 2 parts of alcohol is suitable. Specifications 125,696, [Class 70, Indiarubber &c.], and 318,937, [Class 95, Paints &c.], are referred to.
Patent GB-1454035-A (GB)
Title: Water jet propulsion device
IPC: B63H11/11
Filed: 1974-08-30
Abstract: 1454035 Water-jet propulsion H L SCHOELL 30 Aug 1974 38010/74 Heading B7V Water-jet propulsion unit 10 comprises housing 18 having inlet 13, outlet 19 and impeller 15 mounted in water passageway 20. A vertical wall 31 extends in the passageway from adjacent the impeller to the outlet to form a pair of ducts 26 and a deflector 35 is pivotally mounted in each duct. The vertical wall has slots 34 which receive the blade portions of the deflectors when each blade portion is moved out of the path of the water flowing through the respective ducts.
Patent GB-976077-A (GB)
Title: Improvements in or relating to cleaning and shearing machines for mixed textile fabrics
IPC: D06C13/00
Filed: 1963-09-27
Abstract: 976,077. Finishing fabrics; shearing. MENSCHNER G.m.b.H. Sept. 27, 1963 [Oct. 4, 1962], No. 38203/63. Heading D1S. A cleaning and shearing machine for textile fabrics of mixed wool and polyester fibres has at least two shearing tools disposed one behind the other in the direction of conveyance of the fabric and a shearing table associated with each tool, the first shearing tool 10 serving to treat one side of the fabric and having as a support for the fabric a hollow table 13 and at least one further shearing tool 14 serving to treat the other side of the fabric and having a printed table 16 associated therewith. Preferably the tool 10 treats the wrong side of the fabric and the tool 14 the right side.
Patent GB-864402-A (GB)
Title: Improvements in methods of mounting diamonds
IPC: B23P5/00
Filed: 1959-11-11
Abstract: 864,402. Diamond tools. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 11, 1959 [Nov. 14, 1958], No. 38244/59. Class 124. [Also in Group XXII] A method of mounting a diamond comprises applying a layer of titanium from a suspension on to the diamond and brazing the diamond to a mount with a brazing metal comprising silver or copper in an inert atmosphere or a vacuum. After cleaning, the diamond may be roughened by heating to 800‹C. in air, clamped in a nickel tube, and have titanium deposited thereon from a suspension of 10 grs. titanium powder in 15 mls of butanol and 15 mls of ethanol. The coated diamond may then be dipped into molten brazing metal, e.g. 72% silver, 28% copper alloy, in a vacuum, or a wire of the alloy may be applied to the joint between diamond and tube and melted by high frequency heating in a vacuum.
Patent GB-1010203-A (GB)
Title: Presensitized positive acting lithographic plates
IPC: G03F3/10
Filed: 1961-10-26
Abstract: 1,010,203. Light-sensitive material for photomechanical procedure. MINNESOTA MINING & MANUFACTURING CO. Oct. 26, 1961 [Oct. 31, 1960], No. 38352/61. Heading G2C. A presensitised positively acting material comprises a metal sheet with a surface of an interaction product of the metal and a poly-comflex oxygenated anion of a metal of the Group Va and Via of the Periodic Table, and an overlying ink-receptive poly-complex oxygenated aniondiagonium salt which is decomposable by ultraviolet light to a material readily washed away. Such action produces a lithographic plate,or the non- light-starch areas may be used as a resist in the preparation of letterpress or other plates. In Example I an aluminium foil or sheet is cleaned or degreased with aid of trisodium of phosphate, desmutted if necessary and raised to produce a surface of smooth character, treated with phosphotungstic acid and then with a p-diazodipherylamine-formaldehyde condensation product in the form of its hexafluorophospheric acid salt, the preparation of which is described, and which diazo material reacts with excess phosphotungstic acid present to form the poly-complex indicated above: such is exposed with a carbon arc under a positive, treated with aqueous propyl alcohol and mounted up for printing, or may be given a pre-treatment with a resin emulsion as image developer. In Example II the same phosphotungstic acid treated foil is sensitized with the diazo resin salt which this time includes polyvinyl hydrogen phthalate resin, dye and an indicator in solution therewith, and the image after exposure and processing may be rendered insensitive to light by treatment with a solution of quinaldine red. Example III is stated to use an isopoly compound, for this a cleaned aluminium foil is treated with ammonium paramolybdate and then with a p-tolune sulphonic acid salt of a diazo resin, and in Example IV a single solution prepared from phosphotungstic acid and diazo resin is applied to a magnesium sheet. Other complex acids of the above-specified metals are listed.