baber/WOPTO huggingface dataset:
Patent GB-974605-A (GB)
Title: Process for the conversion of hydrocarbons
IPC: C07C5/27
Filed: 1963-02-06
Abstract: <PICT:0974605/C4-C5/1> Hydrocarbon conversion processes employing Friedel-Crafts catalyst are carried out in a reactor which is protected from corrosion by establishing a circuit in the reactor by imposing a negative charge on the reactor surface exposed to the catalyst and providing at least one anode to complete the circuit. The circuit may be established either as shown in the Figure by insulating the anode 2 from reactor 1 and applying a direct current when the anode metal is deposited as a film on the surface of the reactor or by providing an anode, e.g. aluminium which is less noble than the reactor metal, e.g. nickel or steel, thereby providing a galvanic circuit.  Reactor surface metals specified are antimony, iron, steel, nickel, platinum and aluminium.  Catalysts specified are aluminium chloride and antimony chloride with or without hydrochloric acid and hexafluoroantimonic acid with or without hydrofluoric acid. Reactions specified are the isomerization of hydrocarbons, butane being exemplified.ALSO:Hydrocarbon conversion processes employing Friedel-Crafts catalyst are carried out in a reactor which is protected from corrosion by <PICT:0974605/C6-C7/1> establishing a circuit in the reactor by imposing a negative charge on the reactor surface exposed to the catalyst and providing at least one anode to complete the circuit.  The circuit may be established either as shown in the Figure by insulating the anode 2 from reactor 1 and applying a direct current when the anode metal is deposited as a film on the surface of the reactor or by providing an anode, e.g. aluminium, which is less noble than the reactor metal, e.g. nickel or steel, thereby providing a galvanic circuit.  Reactor surface metals specified are antimony, iron, steel, nickel platinum and aluminium. Catalysts specified are aluminium chloride and antimony chloride with or without hydrochloric acid and hexafluoroantimonic acid with or without hydrofluoric acid. Reactions specified are the isomerization of hydrocarbons, butane being exemplified.
Patent GB-1376130-A (GB)
Title: Process for manufacture of a glass fibre mat
IPC: D21F9/02
Filed: 1972-05-16
Abstract: 1376130 Fibre mat manufacture W H W SCHULLER 16 May 1972 [18 Feb 1971] 4964/71 Heading D2A  A glass fibre mat is formed by feeding glass fibres mixed with water to a pervious belt to form a web of the fibres on the belt and then adding to the web a binding agent. The fibres of “ inch to 1 inch long are fed from a hopper 20 by a weighing conveyor 21 into a container 22 having an agitator 23 and containing water, and then the mixture is fed alternately to service vats 26 also equipped with agitators 27. Pumps 29, 32 feed the mixture through a pipe 30 to a headbox 1, the mixture being diluted with recycled water from a container 33. The web on the pervious belt 2 is subject to suction at 6 and 7, 75% to 90% of the water being removed from the web. An upper belt 2a is driven synchronously with the belt 2. The web passes from the belt 2 to a belt 8 also synchronously driven, and the binding agent is sprayed onto the web by nozzles 18 and applied by a bath 12. More binding agent may be sprayed onto the web after the bath 12. The binder which may be of thermoplastic material may constitute between 10% and 30% of the mat weight. The belts 2 and 8 are washed by water from high pressure nozzles (not shown). Subsequently the mat is passed through a temperature controlled dryer 16. Water overflow from a container 34 and trimmed fibres from a container 35 are recycled to the container 22.
Patent GB-548665-A (GB)
Title: Improvements in or relating to shafts for gearing
IPC: F16H57/021
Filed: 1941-04-16
Abstract: 548,665. Bearings. RUBBRA, A. A. April 16, 1941. No. 4974. [Class 12 (i)] A stationary shaft for a gear wheel is mounted in a casing and pressed sideways in the direction of or opposite to the working load. The tubular shaft 11 is mounted in an aluminium casing 13 and carries an aluminium plug 14 fitting the shaft near each end. Each plug 14 is pressed against the casing by a bolt 20 threaded into a countersunk bronze or steel bush 19. The bolt may screw into the casing 13 and engage a socket in the plug.
Patent GB-490814-A (GB)
Title: Improvements in or relating to electrical apparatus having polystyrene as insulating material
IPC: C08K5/01
Filed: 1937-02-19
Abstract: Electrical apparatus is provided with insulating-material consisting of polystyrene to which has been added a stable homocyclic carbon compound having two or three fused rings that has a boiling point higher than 240 DEG  C., that possesses a low electric moment and is capable of swelling polystyrene, in such proportion that the plasticity of the polystyrene is increased at least five times and that the power factor of the insulating-material does not exceed ,001 at 106 cycles per second.  By a compound that possesses a low electric moment is meant a compound that either does not have any polar groups, or has polar groups arranged symmetrically, or has a single chloro, carboxylic, carboxylic ester or etheric group containing not more than 5 carbon atoms.  By a compound capable of swelling polystyrene is meant an aromatic compound not possessing hydroxide or keto groups and also either without side chains or having only side chains containing not more than 5 carbon atoms.  The plasticizer may be incorporated with the polystyrene either by adding to the monomer before polymerization, by hot rolling with the polystyrene or by dissolving with the polystyrene in a mutual solvent and evaporating the solvent.  Compounds specified as plasticizers are phenanthrene, isoamylnaphthalene, a -n-propylnaphthalene, b -methylnaphthalene, fluorene, b -naphthylmethylether, b -naphthylethylether, and a mixture of octahydroanthracene and octahydrophenanthrene.  The insulating-material may be used as insulation in coaxial cables, as a dielectric in condensers, and for the construction of dielectric wave guides.  According to the Provisional Specification, the plasticizer may be a homocyclic hydrocarbon with one ring or 2 to 4 rings directly connected, with or without side chains containing 1 to 5 carbon atoms attached to not more than half the ring carbon atoms which may contain one etheric, ketonic, carboxylic, carboxylic ester, or chloro group, and which has a melting point below 120 DEG  C. and a boiling point above 250 DEG C., methyl abietate and dihydro methyl abietate being included in the examples of such substances.
Patent GB-1276387-A (GB)
Title: Methods of preparing substituted barbituric acids
IPC: C07D239/62
Filed: 1970-02-03
Abstract: 1276387 N,N<SP>1</SP>-Hydrocarbyloxyalkyl-barbituric acids KENDALL CO 3 Feb 1970 [4 Feb 1969 9 Jan 1970] 5177/70 Heading C2C N,N<SP>1</SP>-Dialkoxyalkyl or N,N<SP>1</SP>-dibenzyloxyalkyl-5,5-disubstituted barbituric acids are obtained by contacting a 5-R,5-R<SP>1</SP>-substituted barbituric acid, in which R and R<SP>1</SP> are a phenyl and an ethyl respectively, or R and R<SP>1</SP> may each independently denote a C 2-5  alkyl or alkenyl group or a C 5-7  cycloalkenyl group with NaH, KH, LiH, LiOH or KO-t-Bu, or a mixture of two or more thereof, in a solvent for the barbituric compound which is inert with respect to the reactants, and subsequently contacting the mixture with a haloalkyl alkyl ether or a haloalkyl benzyl ether, the molar ratio of alkaline compound : barbituric compound being at least 2 : 1 and the molar ratio of ether : barbituric compound being at least 2 : 1.
Patent GB-569373-A (GB)
Title: Process for the manufacture of unsaturated ketones
IPC: C07C49/203
Filed: 1943-04-01
Abstract: Unsaturated ketones of the formula <FORM:0569373/IV/1> wherein R is an alkyl, aryl or cycloalkyl group, are prepared from a substituted butinol of the formula <FORM:0569373/IV/2> by hydration and dehydration in either order.  Hydration is effected by the action of aqueous mercuric, silver or cadmium salts with, if desired, boron trifluoride, and dehydration with chemical dehydrating agents such as phosphorus pentoxide, anhydrous oxalic acid or 30 per cent sulphuric acid or dehydration catalysts such as activated alumina or active charcoal impregnated with phosphoric acid.  Dehydration gives a substituted vinyl acetylene, <FORM:0569373/IV/3> which on hydration yields the desired ketones.  Alternatively, hydration of the substituted butinol gives a hydroxy-ketone, <FORM:0569373/IV/4> which on dehydration yields the same ketones.  The products are converted into substituted acrylic acids with aqueous hypochlorite solution. Methyl, ethyl, butyl, phenyl, and cyclopentyl are specified as examples of R.  In examples: (1) 3-methyl-1-butine-3-ol is heated with 30 per cent sulphuric acid to 83 DEG  C. when methovinyl acetylene distils.  This is heated with aqueous mercuric sulphate solution to 100 DEG  C. under pressure.  The upper layer is distilled in the presence of hydroquinone as an anti-oxidant to give 3-methyl-3-butene-2-one; (2) 3-methyl-3-hydroxy-2-butanone is prepared by adding methyl butinol to a solution of mercuric oxide, sulphuric acid and water while steam distilling.  To the product, phosphorus pentoxide is added at 0 DEG  C., followed by heating to 80 DEG  C. for 3 hours and distillation to give the same product. Hydroquinone is present as in (1) ; (3) 3-methyl-3-butene-2-one is added to sodium hypochlorite solution at 10 DEG  C. and methacrylic acid separated as such or esterified directly, e.g. with butyl alcohol.
Patent GB-286448-A (GB)
Title: Improvements in or relating to screens for optical projection apparatus
IPC: G03B21/60
Filed: 1927-02-25
Abstract: 286,448. Martin, A. M. Feb. 25, 1927. Projection screens.-A base of Hessian cloth s stiffened and coated with a thin layer of distemper on which is superposed a layer of metallic paint; a second layer of distemper and a second layer of metallic paint may be applied to the screen. Stiffening may be effected by impregnating the cloth with water glass.
Patent GB-874149-A (GB)
Title: Process for preparing and purifying warfarin sodium
IPC: C07D311/46
Filed: 1960-02-16
Abstract: The sodium derivative of Warfarin (3-[a -acetonylbenzyl]-4-hydroxy coumarin) (a) is prepared by slowly adding an aqueous sodium hydroxide solution to an agitated slurry of warfarin containing excess warfarin in water containing about 10% by volume of acetone, and (b) is purified by dissolving the alkali metal derivative in warm isopropyl alcohol, stirring the resulting solution while it is cooling to room temperature and recovering the resulting precipitate of crystalline warfarin. sodium.  The latter contains isopropyl alcohol which may be removed either by heating to ca. 145 DEG C. at less than one mm. pressure, or by solution in absolute ethanol followed by concentration and drying under reduced pressure at temperatures up to about 50 DEG C.  Detailed examples illustrate the various processes.ALSO:Warfarin sodium, having rodenticidal and anticoagulatory activity, is purified and can be used in solution or in tablet form, and may be administered in combination with heparin sodium.
Patent GB-534399-A (GB)
Title: Improvements in or relating to apparatus for plotting and reading graphs
IPC: B43L13/00
Filed: 1939-12-07
Abstract: 534,399. Plotting and reading graphs. MILLS, R. A. Dec. 7, 1939, No. 5448. [Class 106(i)] In apparatus for making and reading graphs of the Cartesian co-ordinate type, a pen or its equivalent is moved relatively to a record paper carrying table to produce or trace the graph, the ordinate and abscissa values or components of such movement being indicated upon separate or remote ordinate and abscissa value scale indicators actuated by said movement and characterized in that the movements of the pen or its equivalent and the table are linked together by a variable gear providing an infinite number of ratios between negative and positive maxima determined by the dimensions of the gear. A pen 1 is moved along a fixed bridge member 3 by a screw 6 operated by hand wheel 7 and writes on a paper carried by a board 5 moved at right angles to the travel of the pen by a screw 18 rotated through gears and shafts by hand wheel 26. The movements of the pen 1 and board 5 are transmitted to chart plates 14, 31 bearing scales 15, 32 read against pointers 16, 33. The two movements are linked together for producing straight line graphs by the following mechanism :-Hand wheel 38 rotates shafts 56 and 57 the latter driving telescopic shaft 62 which, when cam 65 operated by handle 68 lifts disc 66, drives screw 18 through gears 63, 24, 23, 21 to move board 5. Shaft 56 carries disc 35, supported on ball bearings 50, and frictionally rotating balls 40 in cage 39 to rotate roller 41 which drives screw 6 and hence pen 1 by spring tensioned chain gear. The cage 39 may be moved diametrically across disc 35 by hand wheel 47 and shaft 46 to vary the ratio of the movement of the pen to the movement of the board. The position of cage 39 is indicated upon either of scales 15 or 32 by indicators 69, 70 driven by worms on shafts 75, 76 which are geared to shaft 46 by slidably mounted changeover bevel gears 77,78. Hand setting by knobs 79, 80 is also provided. The machine may be entirely or in part electrically driven.
Patent GB-712351-A (GB)
Title: Improvements in or relating to multistage compressors
IPC: F04D27/02
Filed: 1952-03-04
Abstract: 712,351. Axial-flow compressors. UNITED AIRCRAFT CORPORATION. March 4, 1952 [March 7, 1951], No. 5630/52. Class 110(1) A multi-stage compressor comprises a casing having piloting surfaces on its inner face which are engaged by piloting flanges on vane-supporting rings which are positioned within the casing in end-to-end engagement, adjacent rings being maintained in concentric relation by locating pins. The inner casing comprises rings 50a-50g, Fig. 1, carrying guide vanes 12, and a ring 50h carrying straightening vanes 52. To facilitate assembly, the rings are split. A flange 60, Figs. 1 and 4, on ring 50a engages axially extending pins 62 carried by a flange 64 on ring 50b, and the ring 64 engages an inner surace 46 of an outer casing ring 40a. Rings 50c and 50d, Figs. 1 and 6, are connected by the engagement of a peripheral rebate 72 on the former with the end 79 of the latter, and a flange 75 on ring 50d is bolted between the adjacent flanged ends of outer casing rings 40a. 40b. At the remaining junctions between adjacent inner casing rings, the locating' and connecting means are similar to those between rings 50a and 50b, except that flanges 70 and 76 are of peripherally interrupted form. The annular manifolds 80 and 98 thus formed between the inner and outer casing communicate with bleed ports 82 and 96 respectively. The bleeding is controlled by piston-type valves 88. 100. The pressure for closing the valves may be derived from the compressor at a point downstream of the bleed ports.
Patent GB-143337-A (GB)
Title: Improved combined stove and radiator for heating and cooking purposes and for providing hot water for domestic and heating purposes
IPC: F24C13/00
Filed: 1919-03-07
Abstract: 143,337. Mort, J. March 7, 1919. Sectional boilers.-The boiler A of a heating and cooking apparatus is formed of connected sections enclosing the fire-space, the back section forming the back of the fire-box and being divided by a partition a<10> into two parts a<11>, a<12>, of which the former is connected to the other sections, whilst the latter forms an independent boiler. In a modification, Fig. 5, the back section is formed with an opening a<14> in which is removably fitted a small boiler G. The main boiler is connected by pipes E, E' to a system of heating pipes or radiators, and the independent boiler by pipes D, D' to a storage tank for domestic supply. Vertical passages a<13> for the passage of combustion products are formed at one side of the boiler by reducing the width of the sections for a portion of their height.
Patent GB-682671-A (GB)
Title: Improvements in or relating to the remote control of hydraulic-power pumps
IPC: F15B11/05
Filed: 1949-03-02
Abstract: 682,671. Reciprocating pump. GULLICK, Ltd., and SEAMAN, T. March 2, 1950 [March 2, 1949], No. 5659/49. Class 102 (i) [Also in Group XXIX] A control device 23 for a motor driven pump supplying a hydraulic system comprises a pressure sensitive device such as the piston 26 which is hydraulically connected to the system through a spring loader non- return valve 41 and is operatively connected to a valve 28 or other means for controlling the power supply to the pump, a further non-return valve 44 being provided whereby fluid delivered to the piston 26 may return to the system when the pressure therein falls below a predetermined value. As shown, a compressed air motor 10 drives through chain and sprocket gearing in a casing 11 the shaft 14 of a cam-actuated multi-piston pump 12 supplying hydraulic mains 16. The valve 28 which is opened by a spring 30 controls the supply of compressed air to the motor 10 through a pipe 22 which is also fitted with a hand operated valve 48. The piston 26 of the control device 23 moves in a cylinder 25 having a passage 36 leading to the non-return valve 41 and a passage 37 leading to the non-return valve 44. The inlet of the valve 41 is connected via a passage 31, a connection 32 having a filter 34, and a pipe 33 with the delivery side of the pump 12. A passage 39 connects the outlet of the non-return valve 44 with the passage 31. The valve 41 seats on a conical knife edge seat 43 and has an adjustable loading spring in a casing 35a fitted with a vent passage 35b normally closed by valve 35c.. An indicating device 49 (see Group XXIX) is provided to facilitate the appropriate operation of the hand valve 48. In the case of a pump driven by an electric motor, the piston 26 controls an electric switch. Alternatively it may operate a clutch between the pump and its driving motor. The device is particularly applicable to hydraulic systems for hydraulic pit props, and hydraulic coal bursters in coal mines.
Patent GB-786613-A (GB)
Title: Well completion apparatus
IPC: E21B33/047
Filed: 1956-02-23
Abstract: 786,613. Wells. BUTLER, G. A. Feb. 23, 1956 [Aug. 4, 1955], No. 5695/56. Class 85 [Also in Group XXVIII] A control head fitting 20 has a flange 21 and two vertical passages 24, 25, the passage 24 being connected to a flow line 11, a valve 41 being provided to control flow in the passage 24, and a flow line 12 passing through' the passage 25. The passage 24 has a branch 50 and is provided with a fitting 30 having a pressure gauge 34. The line 12 is joined to a pipe 87 having a valve 88 by a sleeve 62 which engages a seat 60 to support the line. The sleeve is held in engagement with the seat by packing 73, 74, 75, a compression ring 79, and a threaded gland ring 78. When the well is being completed the line 11 is run through a blowout preventer mounted on the tubing head 10, the preventer is removed, and the fitting 20 is screwed on to the line 11 and fixed to the tubing head. A flange is screwed on to a thread 100 on the fitting 20, an adapter blanking off the passage 24 is fixed to the flange, the line 12 is run through a blowout preventer mounted on the adapter, the preventer adapter and flange are removed, and the line 12 is suspended from the seat. Specification 651,474 [Group XXVI] is referred to.
Patent GB-139499-A (GB)
Title: Rivet forge
IPC: B21J19/02
Filed: 1920-02-25
Abstract: 139,499. Lange, K. Dec. 24, 1918, [Convention date]. Rivet-heating furnaces.-A furnace is divided into a number of chambers heated by a single burner. The furnace shown is of circular form, as seen in plan, and is divided into chambers by refractory radially-arranged partitions d tapering down to a central block c on to which the burner i delivers. Gas and compressed air are supplied to the burner through the pipes f and g respectively, and a nozzle h is fitted in the supply pipe to prevent the air from forcing back the gas. To prevent emission of flames through the doorways k compressed air is delivered in front of them through a circular pipe l. Passages m are fitted above the doorways through which scale &c. is blown by the compressed air.
Patent GB-629683-A (GB)
Title: Self-locking nut
IPC: F16B39/30
Filed: 1947-02-27
Abstract: 629,683. Locking nuts. ENGSTROM, H. O. Feb. 27, 1947, No. 5756. Convention date, March 1, 1946. [Class 89 (i)] [Also in Group XXII] Nuts are rendered self locking by pressing in metal 7 at the edge of one or more faces in such wise that there is a shearing of the fibres causing projections of the thread 6 beyond the normal thread diameter. Specifications 12869/00, [Class 89], and 9556/12, [Class 89 (i)], are referred to.
Patent GB-307793-A (GB)
Title: Improvements in or relating to the treatment of glassware
IPC: B01L3/00
Filed: 1929-02-22
Abstract: 307,793. Jobling & Co., Ltd., J. A., (Assignees of Hockenyos, G. L.). March 13, 1928, [Convention date]. Drawings to Specification. Urns.-The liners of coffee urns and the like have the exterior surfaces roughened, wholly or in part, by sandblasting, frosting, etching, or otherwise, to retard the corrosion of the glass due to the effect of steam or chemical action.
Patent GB-312393-A (GB)
Title: Improvements in lifts, hoists and the like
IPC: B66B9/187
Filed: 1928-02-25
Abstract: 312,393. Marryat & Scott, Ltd., and Gooch, L. J. Feb. 25, 1928. Cage and platform lifts; electric motor winch-actuated hoists with guided platforms. -A well or guide-way for a lift or hoist is formed as a complete unit comprising three or more vertical members and a series of bracing frames to which the guides are attached and which may be attached to the vertical members at any desired points. As adapted for a service lift, tubular vertical members a are fitted with bracing angle iron frame b secured to the verticals by curved bolts c. The vertical members may be fitted with tubular spacing members between the frames. The cage d is supported by a rope i passing over pulleys h, j, the driving pulley j being driven by an electric motor g having an off -set shaft so that the part of the hoisting rope supporting the counterweight e is vertical. The frames may be fitted with bracing wires m.
Patent GB-849116-A (GB)
Title: Dithiocarbamate derivatives
IPC: C07D307/68
Filed: 1957-02-22
Abstract: The invention comprises 2-furoyl dialkyl-dithiocarbamates in which each alkyl contains not more than four carbon atoms and di-(2-furoyl) ethylene-bis-dithiocarbamate, and the preparation thereof by reacting, in a solvent medium, 2-furoyl bromide or chloride and a salt of a dialkyldithiocarbamic acid or of ethylene-bis-dithio carbamic acid.  Sodium or potassium salts are preferred, and the reaction is carried out between -5 DEG  and 20 DEG C.  It is further disclosed that 2-furoyl chloride and sodium piperidine carbodithioate react to give N-furoyl piperidine.ALSO:Fungicidal compositions comprise a major proportion by weight of an inert diluent and, as active ingredient, a minor proportion by weight of a 2-furoyl dialkyldithio carbamate in which each alkyl group contains not more than four carbon atoms or di-(2-furoyl) ethylene-bis-dithiocarbamate. Compositions may comprise dusts, sprays, wettable powders or concentrates for dilution with water, containing if desired, other fungicides, insecticides, miticides and comparable pesticides.  The dust compositions may further contain dispersing and/or sticking agents, a typical dust composition being 5 parts 2-furoyl dimethyldithio carbamate, 1 part condensed naphthalene-formaldehyde sodium sulphonate, 80 parts kaolin, and 14 parts diatomaceous earth. Other inert diluents include talc, pyrophillite and silica.  An example of a wettable powder is 25 parts di-(2-furoyl) ethylene-bis-dithiocarbamate, 70 parts finely particled Georgia clay, 2 parts lignin sulphonate and 3 parts of an octylphenoxypolyethoxyethanol wetting agent, and an example of an emulsion concentrate is 20 parts 2-furoyl-dimethyldithiocarbamate, 75 parts xylene, 1 part calcium dodecylbenzene sulphonate and 4 parts tert-octylphenoxypolyethoxyethanol.  The compound of the invention may also be mixed with discrete quantities of soil for use as a fungus resisting growth medium.