baber/WOPTO huggingface dataset:
Patent GB-779047-A (GB)
Title: Apparatus for making grids for electron discharge tubes
Inventor: HETRICK HARVEY H
IPC: H01J19/00
Filed: 1955-11-29
Abstract: 779,047. Making wire grids. SYLVANIA ELECTRIC PRODUCTS, Inc. Nov. 29, 1955, No. 34181/55. Classes 83 (2) and 83 (4). A grid-winding and forming machine comprises means 12 for winding a grid string, a grid clamper and former head 24 movable, toward the grid-winding means 12, to a first position to grasp the grid string and movable, away from the grid-winding means, to a second position to withdraw the grid string as it is being wound, a forming mandrel 34 loose within the wound grid string at said first position, said head 24 when at said first position being adapted to shape the grid wires of the grid string about the mandrel 34 and to clamp the mandrel 34 and grid wires to the head, the mandrel 34 moving with the shaped wires and head on movement of the head to the second position, the head opening at the second position to release the grid string and mandrel and means, e.g. a spring 36, adapted to operate upon opening of said head to withdraw the mandrel 34 from the shaped portion of the grid string to its initial position within the unshaped portion. Grid wire is wound on support wires 14, 16 guided in recesses 18, 20 in the sides of a stationary mandrel 10, the wound grid being drawn continuously off the stationary mandrel 10 by the head 24 and a head 26 reciprocating longitudinally of the grid in suitably timed relation. The loose, forming mandrel 34, which may be of rectangular, circular or other suitable cross-section, has a flat stem 32 received within'a tube 30 welded to the end face of the stationary mandrel 10. The head 24 has dies 42, 44 vertically reciprocable thereon to grip and shape the wound grid about the forming mandrel 34, in the first position of the head 24. U.S.A. Specification 2,759,499 is referred to.
Patent GB-875946-A (GB)
Title: Water-soluble azo dyestuffs containing ethene sulphonic acid amide groups
Inventor: LANGE GUENTER
IPC: C09B62/527
Filed: 1959-10-09
Abstract: Compounds containing ethenesulphonamide groups are prepared and used in the preparation of azo dyestuffs (see Group IV(c)). Ethenesulphonyl - (3-aminophenyl)-amide is prepared by the reduction of ethensulphonyl-(3-nitrophenyl)-amide (Specification 686,061, Example 5) in aqueous calcium chloride with iron powder.  1 - ethenesulphonamido - 8 - naphthol-3:6-disulphonic acid sodium salt is prepared in solution by treating an aqueous solution of 1-amino-8-naphthol-3:6-disulphonic acid sodium salt with a solution of ethenesulphonyl chloride in acetone. 1-(31-ethenesulphonamidophenyl)-3-methyl-5-pyrazolone is prepared by reacting 1-(31-aminophenyl) - 3 - methyl-5-pyrazolone with carbyl sulphate in 1 : 2-dichloroethane.  4 - amino-41-ethenesulphonylamido-diphenylsulphide is prepared by reacting 4-nitro-1-amino-diphenyl sulphide with carbyl sulphate in 1 : 2-dichloroethane and reducing the nitrocompound with iron powder in aqueous calcium chloride solution.  Specification 686,061 is referred to.ALSO:The invention comprises azo dyestuffs containing at least one ethene-sulphonamide group and at least one water-solubilizing group. The dyestuffs may be prepared by the usual diazotization and coupling reactions using suitable components or by acylation of aminoazo dyestuffs with agents which introduce an ethenesulphonyl radical, such as ethene sulphonic acid chloride and bromide and carbyl sulphate.  The dyes may be used to dye cellulose, wool, leather, silk and linear polyamides in many shades, the dyeings being fixed by treatment with alkalis and heating.  Many examples are described, the components specified including ethenesulphonyl-(3-or 4-aminophenyl)-amide, 4-amino- 41-ethenesulphonyl amido-diphenyl-sulphide or-sulphone or -ketone or -amine and diamino-diphenylmethane; 1-(phenyl or sulphophenyl)-5-pyrazolones, naphthol-sulphonic acids, aminonaphthol-sulphonic acids and N-acyl derivatives thereof, 8-hydroxyquinoline- 4-sulphonic acid and 2-ethenesulphonylamido- 5-naphthol- 7-sulphonic acid. Specifications 686,061, 712,037, 776,265 and 779,781 are referred to.
Patent GB-770478-A (GB)
Title: An improved process of producing polycyclic ketones
Inventor: RADZITSKY PIERRE DE
IPC: C07C49/675
Filed: 1954-11-26
Abstract: Polycyclic ketones in which at least one bond of the keto-group is directly attached to a carbon atom forming part of an aromatic nucleus, are prepared by oxidizing a hydrocarbon having at least one aliphatic chain connecting two carbon atoms which each form part of an aromatic nucleus, in the liquid phase with an oxygen-containing gas at atmospheric pressure, the oxidation being carried out in the presence of an aliphatic monocarboxylic acid solvent and of an oxidation catalyst at a temperature of from 80 DEG  to 200 DEG  C. Specified hydrocarbons and the polycyclic ketones obtained therefrom are a -tetralone from 1 : 2 : 3 : 4 -tetrahydronaphthalene, a  - indanone from indane, acenaphthenone from acenaphthene, benzophenone from diphenylmethane, fluorenone from fluorene, phenanthrone from 9 : 10-dihydrophenanthrene, phenylbenzylketone from dibenzyl, and anthrone from 9 : 10-dihydroanthracene.  Oxidation catalysts mentioned are metal cations such as those of cobalt, manganese, nickel, chromium, copper, iron, zinc, silver, tin, lead, antimony, bismuth and vanadium which may be provided by the dissolution of the metal or its oxide or a salt such as the chloride, nitrate, sulphate, acetate, propionate, palmitate, stearate or naphthenate in the acid solvent used for the oxidation.  Aliphatic monocarboxylic acid solvents specified are acetic acid, propionic acid and butyric acid. In examples, a -tetralone is obtained by oxidizing 1 : 2 : 3 : 4-tetrahydronaphthalene with gaseous oxygen in the presence of (1) acetic acid and cobalt chloride, (2) acetic acid and manganous acetate, (3) acetic acid and nickel nitrate, (4) propionic acid and cobalt chloride, (5) butyric acid and cobalt chloride; (6) indane is oxidized in the presence of acetic acid and cobalt chloride to give a -indanone; (7) acenaphthene yields acenaphthenone by oxidation in the presence of butyric acid and cobalt chloride; (8) benzophenone is obtained by oxidation of diphenylmethane in the presence of acetic acid and cobalt chloride.
Patent GB-804083-A (GB)
Title: A process for the copolymerisation of diolefines and alpha-olefines
IPC: C08F236/04
Filed: 1956-11-12
Abstract: Diolefines with conjugated double linkages and alpha-olefines are copolymerized in the presence of a mixed catalyst formed from an aluminium trialkyl and a titanium halide.  The catalyst may be a mixture of aluminium triethyl and titanium tetrachloride in a mol. ratio of 2 : 1 to 1 : 10.  The diolefines may be butadiene, isoprene, piperylene or 2,3-dimethylbutadiene and the alpha olefines may be ethylene, propylene, alpha butylene and styrene, the ratio varying from 95 : 5 to 5 : 95.  Copolymerization may be carried out in an inert solvent such as an aliphatic or cycloaliphatic hydrocarbon such as butane, pentane, hexane, cyclohexane, methylcyclohexane, ethylcyclohexane, and isopropylcyclohexane, using a temperature of -25 DEG  to +200 DEG  C. in atmosphere of nitrogen, argon or hydrogen.  The copolymer may be precipitated by isopropyl alcohol, butanol or methanol. Specification 776,326 is referred to.
Patent GB-922868-A (GB)
Title: Accurate location systems for repetitive positioning in image reproduction processes
IPC: G03F9/00
Filed: 1959-10-13
Abstract: 922,868. Registering means for image reproduction. L. D. EVANS, and A. CANNON. Oct. 13, 1959 [Oct. 13, 1958], No. 34682/59. Class 98 (1). Precise repetitive registration in image production processes is obtained by the engagement, in a total of six points, of three non- colinear abutment portions on one member with correspondingly positioned receiving surfaces on the other member, at least two of the six points being provided by the surfaces of a V- shaped groove. As shown in Fig. 3, a frame 21, holding a transparency 4 by means of clips 7, has stems 22 carrying spheres 8. These engage a base member 18 respectively, in a trihedral recess 9, a V-groove 10, and a flat 11 thus giving six points of contact as required by Kelvin's principle of kinematic coupling the closing force in this case being due to gravity. The trihedral hole locates the centre of gravity of its sphere, and the other two abutments provide constraint against any rotation about this point. In other embodiments, the closing force is due to a spring. Alternatively, as shown in Figs. 5 and 6, a line in the system is constrained by the engagement of spheres 8 in waisted blocks 25 under pressure from a spring-loaded finger 26 which also acts to locate a third sphere 8 in a V-groove in block 13. The spheres are carried on a frame 31 to one side of which the transparency 4 is clamped.
Patent GB-469713-A (GB)
Title: Improvements in or relating to devices for tensioning yarns, filaments or the like in textile machinery
IPC: D04B35/00
Filed: 1936-12-17
Abstract: 469,713. Tensioning yarns in knitting- machines. HEMPHILL CO. Dec. 17, 1936, No. 34700. Convention date, Jan. 30. [Class 74 (ii)] [Also in Group IX] A device for tensioning yarns in knitting- machines comprises a loop 8, Fig. 1, 16, Fig. 5, of relatively thin resilient material, such as spring steel, which bears against a curved surface 7 or a roller 21, the yarn being led between the surfaces by suitable guides. The loop is adjustable in size by a sliding clamp 11, 19, and the roller 21 is carried by an adjustable ear.
Patent GB-422085-A (GB)
Title: Improvements in or relating to timing mechanism for machine guns on aircraft
IPC: F41A19/05
Filed: 1933-12-11
Abstract: 422,085. Flexible - chamber pumps. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and FORSYTH, A. G., Venlaw, Burdon Lane, Cheam, Surrey. Dec. 11, 1933, No. 34813. [Class 102 (i)] [See also Group XXI] The timing cams r, q for synchronizing the fire of aircraft machine guns between the propeller blades are arranged within the casing a of the hotwell pump for the engine cooling system and are mounted on the same driven shaft g as the eccentric u, for operating the bellows pump b. The driving shaft d is connected by gearing h, j, with the driven shaft g.
Patent GB-288117-A (GB)
Title: Improvements in means for transporting lawn-mowers
IPC: B62B5/00
Filed: 1927-12-23
Abstract: 288,117. Pugh, Ltd., C. H., and Bull, G. F. Dec. 23, 1927. Hand trucks for transporting lawn mowers comprise a wheeled cradle. 1 adapted to rest on the ground at the front edge so that the mower may be drawn up into position by means of a winch. The cradle comprises runners having vertical and horizontal flanges for the roller of the mower and at the rear a bracket 9 is provided to serve as a rest and abutment for the mower when loaded.
Patent GB-1473936-A (GB)
Title: Process for producing para-diethylbenzene
IPC: C07C67/00
Filed: 1974-08-09
Abstract: 1473936 p-Diethylbenzene UOP Inc 9 Aug 1974 [10 Aug 1973] 35160/74 Heading C5E p-Diethylbenzene is separated from a mixed feed comprising benzene, ethylbenzene, diethylbenzenes and polyethylbenzenes by a process comprising : (a) separating, e.g. by fractionation, the mixture to provide (1) a low-boiling stream comprising benzene and ethylbenzene, (2) an intermediate-boiling stream comprising o-, m- and p-diethylbenzenes, and (3) a high-boiling stream comprising polyethylbenzenes; (b) separating p-diethylbenzene from (2) by selective adsorption on a crystalline aluminosilicate zeolite; (c) contacting the remaining o- and misomers from (2) with at least a portion of both (1) and (3) with a transalkylation catalyst, and (d) recycling the transalkylation effluent to (a). Suitable transalkylation catalysts are Friedel- Crafts, e.g. AlCl 3 , aluminosilicates, or BF 3 - modified inorganic oxides (e.g. BF 3 -modified anhydrous alumina). The adsorbent may be types X or Y zeolites containing Ba and/or K cations.
Patent GB-1494073-A (GB)
Title: Pigments
IPC: C08K5/58
Filed: 1974-10-24
Abstract: 1494073 Cadmium pigmented plastics JOHNSON MATTHEY & CO Ltd 24 Oct 1974 [24 July 1973] 35295/73 Heading C3P The extraction of cadmium from plastics materials containing cadmium pigments in contact with foods and beverages is reduced by incorporating in the pigment an organotin compound. Examples describe the incorporation in polyethylene of cadmium sulphide and sulpho-selenide pigments containing di-n-octyltin sulphide, optionally mixed with epoxidized soya bean oil, di-n-octyl tin thioglycollic ester, di-n-octyl tin S,S<SP>1</SP>-bis-(isooctylmercaptoacetate) or di-n-octyl tin maleate.
Patent GB-1474916-A (GB)
Title: Catalyst systems and diaphragm operated valves for use in such systems
IPC: F01N3/32
Filed: 1974-10-14
Abstract: 1474916 I.C. exhaust converter BRITISH LEYLAND UK Ltd 14 Oct 1974 [24 July 1973] 35296/73 Heading B1F [Also in Division G3] A catalyst system for treating the exhaust gases from internal-combustion engines includes a pumped secondary air supply, a diaphram-operated valve arranged to cut off the supply of secondary air to the catalyst, catalyst temperature sensor means adapted to detect if the catalyst approaches a predetermined overheat temperature, a normallyclosed solenoid-operated valve connected to the sensor means and arranged to connect a first side of the diaphragm to the inlet manifold when the sensor means detects that the catalyst has reached a predetermined temperature approaching overheat temperature, means connecting the second side of the diaphragm to the secondary air supply, and bleed means connecting the secondary air supply to the said first side of the diaphragm. As shown, the flow of secondary air to a catalytic exhaustgas converter along passages 27, 28 is controlled by valve 25 which when operated allows the air to escape at 20. Valve 25 is operated by diaphragm 11 and is normally urged to the open position as shown by spring 26. Inlet 31 is adapted for connection to the inlet manifold of the engine and when solenoid valve 17 is operated by a temperature sensor in the catalyst low pressure from the manifold causes operation of the diaphragm.
Patent GB-618744-A (GB)
Title: Improvements in or relating to plug and socket electric couplings
IPC: H01R13/68
Filed: 1946-11-28
Abstract: 618,744. Two-part couplings. GENERAL ELECTRIC CO., Ltd., and DAVIES, C. E. Nov. 28, 1946, No. 35330. [Class 38 (i)] In a plug incorporating a cartridge fuse 6, one end cap 8 of the fuse is located in a recess in a head 7 on one of the supply pins 3, the other end cap 9 being engaged by jaws on a bracket-shaped contact 10 having a terminal 11 at its other end secured to the plug body 1. The pin 3 is slidable in the body to eject the fuse which is normally held in place by the plug cover 5. A recess may be provided in the body for a spare fuse.
Patent GB-1212728-A (GB)
Title: Microbicidal compositions comprising formaldehyde-benzyl alcohol reaction products
Inventor: PAULUS WILFRIED
Filed: 1968-07-24
Abstract: 1,212,728. Benzyl alcohol - formaldehyde reaction products. FARBENFABRIKEN BAYER A.G. 24 July, 1968 [3 Aug., 1967], No. 35331/68. Heading C2C. [Also in Divisions A5 and C5] The invention comprises a mixture of hemiformals and polyhemiformals which is formed by the reaction of one to two molar equivalents of formaldehyde with benzyl alcohol, optionally substituted in the ring by halogen, alkyl or haloalkyl radicals. The reaction is generally carried out by reacting paraformaldehyde with the alcohol in an alkaline medium, e.g. in the presence of sodium or potassium carbonate or magnesium oxide, until a clear solution is formed. The reaction products of formaldehyde and benzyl alcohol, 2-methylbenzyl alcohol and 3,4 - dichlorobenzyl alcohol are disclosed.
Patent GB-1055118-A (GB)
Title: Gas turbine engine accessory drive mechanism
Inventor: SMITH PHILLIP BURROWS
IPC: F02C7/32
Filed: 1965-08-19
Abstract: 1,055,118. Machinery breaking-pieces. ROLLS-ROYCE Ltd. Aug. 19, 1965. No. 35529/65. Heading F2X. [Also in Division F1] A gas turbine engine (not shown) has an accessory drive unit 22 comprising a first shaft 21 driven by the engine and a second shaft 28 driven through splines 29 by shaft 21 and secured axially and radially within the shaft 21 by a nut 30, shoulders 31, 32 and abutments 33, 34. A third shaft 35 driven through splines 36 by shaft 28 is connected through splines 37 with the shaft 38 of a constant speed drive gear-box 23, the output shaft 39 of which drives through splines 40 a shaft 41 connected through splines 42 with the shaft 43 of an alternator 24 for the engine. Preferably the shaft 35 is so dimensioned that in the event of shock loading or excessive wear of the transmission it will be the only shaft to fail.
Patent GB-468930-A (GB)
Title: Improvements in or relating to filters for separating aerosols from air
IPC: A62B23/00
Filed: 1936-12-28
Abstract: 468,930. Filtering gases. SOC. ITALIANA PIRELLI. Dec. 28, 1936, No. 35532. Convention date, Dec. 28, 1935. [Class 8 (ii)] A fine filter for gases is formed by folding a tape of paper, felt, &c. longitudinally, reinforcing the fold, e.g. by a string 2 secured by adhesive, or an adhesive tape of permeable or impermeable material before or after folding, and rolling the folded tape into a coil, the free edges of adjacent convolutions being joined by adhesive or adhesive tape 4. The convolutions may be spaced by corrugated wire, fabric, metal, &c. or by corrugating the convolutions themselves. The centre may be filled by a cylinder of light material or a disc.
Patent GB-925179-A (GB)
Title: Improvements in or relating to the production of coated webs
IPC: G03D15/02
Filed: 1960-10-17
Abstract: <PICT:0925179/IV(a)/1> A process for coating webs W, e.g. with photographic emulsion, comprises introducing rolls of web 28 into a closed apparatus at reduced pressure while moving the web continuously through the apparatus, splicing the outer end of each roll 28 in a chamber 30 on to the trailing end of the preceding roll without reducing the web speed, continuously extruding the coating material at 13 on to the moving web, drying the web, e.g. by electric heating panels 54, winding up the web in a chamber 57, severing the web, securing the severed end of the unwound web to a core supported in a member 58 to form a new roll, and removing the rolls from, and supplying cores to, the chamber 57 at 63, 62 respectively.  Uncoated rolls 28 on cores are introduced at 33 and the cores removed at 34. The mechanism for receiving the cores and rolls, for winding and unwinding the web, for splicing and for severing the web may be as described in U.S.A. Specification 3,055,337 and the coating apparatus 13 may be one for applying a single layer as described in Specification 792,744, or multiple layers as described in Specifications 755,151 and 800,527, or may be as described in U.S.A. Specification 2,734,224, and the operations of the unwind mechanism in chamber 30 may take place in timed relationship to those in rewind chamber 57.  Vacuum pumps are connected to each of the chambers 30, 33, 34, 57, 63, 66.  The delivery of coating material to the web is synchronized with the web speed, e.g. by interconnecting a pump 9 with the drive for the web, or by electronic means, and an analyser 11 (see Group XL(b)), which measures the concentration, e.g. of silver halide, in the coating material, also may control the synchronization.  A similar analyser 111 may control the feed of the emulsion.  A moisture gauge 72 or an apparatus responsive to the web temperature may control the web speed or temperature, or the vacuum, and a photoelectric device, e.g. as described in U.S.A. Specification 2,393,631 may be employed to ensure that undesirable parts of the coated web are rejected.  Coating materials mentioned include various silver halide dispersions, gelatin, dispersions of magnetizable materials or phosphors, and several organic solvents are listed. The web is paper or textile material, and the coated web may be doctored by squeegees, sponge rollers or vacuum devices.  Specifications 758,401, 855,216, and U.S.A. Specifications 2,840,356 and 2,866,499 also are referred to.
Patent GB-1470776-A (GB)
Title: Dispensing apparatus
IPC: G07F13/02
Filed: 1974-07-25
Abstract: 1470776 Dispensing apparatus M A WALSH 25 July 1974 [26 July 1973] 35634/73 Heading G4V A container 13 for wine, spirits &c. is mounted on a housing 10 by brackets and the container has a metering member 14. A coin shoot has a lower part 28 pivoted at 29. Brackets 32 mount a solenoid valve 33 having a core 35 and an electric time switch 34. Operation of the valve is controlled by micro-switch 31. Another switch 38 may also be utilized so that a glass has to be positioned beneath container 13. Core 35 is pivotally connected to lever 36 which engages crossbar 15 with a U-shaped bracket 37. Lever 36 also contacts a lever 42 pivoted at 43 and connected at 44 to coin shoot 28. In operation a coin or coins pass down shoot 28 to activate switch 31. Valve 33 moves core 35 inwardly thus causing lever 36 to activate optic measure 14. Lever 36 also pivots lever 42 so that shoot 28 is caused to rotate to release the coins therein which may pass to a coin box.
Patent GB-414952-A (GB)
Title: Manufacture of halogenated phenylthioglycollic acids
Filed: 1933-12-19
Abstract: Halogenated phenylthioglycollic acids are prepared by chlorinating or brominating a phenylthioglycollic acid of the general formula <FORM:0414952/IV/1> wherein the two letters x in o-position to the thioglycollic acid grouping do not represent carboxyl groups or any groups capable of being converted into carboxyl groups by saponification and wherein at least one of the four letters x represents halogen, alkyl, an alkoxy-group or an alkylmercapto-group. Such phenylthioglycollic acids include o- and m-chloro- or bromphenyl-1-thioglycollic acid, and o- and m-alkylsuch as methyl and ethylphenyl-1-thioglycollic acids; dichloro-, dibromo-, dialkyl-, dialkoxy-, dialkylmercaptophenyl - 1 - thiogly - collic acids such as the 2 : 5 - dimethyl and 2 : 5- and 2 : 6-dichloro phenyl-1-thioglycollic acid; trihalogenphenyl-1-thioglycollic acid; monohalogen monoalkyl-, monohalogen di-alkyl-dihalogenmonoalkylphenyl-1-thioglycollic acids such as 2-methyl-3 : 5-dichlorophenyl-1-thioglycollic acid; halogenalkyloxy- and halogenalkylmercaptophenyl - 1 - thioglycollic acids such as 2-chloro-5-ethoxylphenyl-1-thioglycollic acid.  Suitable chlorinating or brominating agents include chlorine or bromine and substances yielding them such as sulphuryl chloride in the presence or absence of halogen carriers such as iodine, antimony pentachloride or iron and its salts and in the presence or absence of a diluent such as benzene, chlorobenzene, glacial acetic acid, nitrobenzene, chloroform, tetrachlorethene, dioxane and sulphuric acid.  In examples of a solution of 2 : 5-dimethylphenol - 1 - thiogylcollic acid in chlorobenzene is treated with antimony penta chloride and sulphuryl chloride to yield the 4-chloro compound; (2) A solution of 2-chloro-5-ethoxyphenyl-1-thioglycollic acid in tetrachlorethane is mixed with antimony chloride and treated with a solution of sulphuryl chloride in tetrachlorethane to yield the 2-4-dichloro compound; (3) a solution of 2 : 5-dimethylphenyl-1-thioglycollic acid in chlorobenzene containing iodine is treated with a solution of bromine in chlorobenzene to yield the 4-bromo compound.  2 : 5 - Dimethylphenyl - 1 - thioglycollic acid is prepared by treating p-xylene with chlorsulphonic acid to yield 2 : 5-dimethyl-1-benzene sulphochloride, reducing this by means of zinc dust and hydrochloric acid to the thiophenol and condensing with chloracetic acid.