baber/WOPTO huggingface dataset:
Patent GB-1013619-A (GB)
Title: Improved process for recovery of adipic acid precursors
IPC: C07C29/50
Filed: 1963-09-16
Abstract: In a process for the preparation of adipic acid by the oxidation of cyclohexane in the liquid phase with molecular oxygen to primary oxidation products comprising chiefly cyclohexanone and cyclohexanol, followed by oxidation of these products to adipic acid, the adipic acid precursor products are obtained by (a) injecting water into the effluent from a liquid phase cyclohexane oxidation step; (b) separating the resulting mixture into a first oil phase and first aqueous phase; (c) removing substantially all the unoxidized cyclohexane from the first oil phase; (d) subjecting the resulting substantially cyclohexane free oil phase to evaporating conditions in the top portion of a standard rectification column; (e) subjecting the first aqueous phase to evaporating conditions in the bottom portion of said rectification column for a sufficient time to cause substantially all the water from the first aqueous phase to go overhead in the distillate obtained from said distillation with substantially all of said cyclohexane free first oil phase; (f) separating the resulting distillate mixture into a second oil and second aqueous phase; and (g) recovering the distillate second oil phase and combining it with selectively precipitated adipic acid precursors from the bottoms of said distillation, whereby an adipic acid precursor oil is obtained for use as the oxidizable feed.  The subsequent oxidation is by nitric acid at between 130-190 DEG  C. and a pressure between 50 and 150 pounds per square inch.  The top and bottom distillation ranges are between 80 DEG  and 120 DEG  C. and 100 DEG  and 140 DEG C. respectively.  Specifications 1,013,617 and 1,013,618 are referred to.
Patent GB-1473130-A (GB)
IPC: A01N/
Filed: 1974-08-19
Abstract: 1473130 Synergistic herbicidal mixture SANDOZ Ltd 19 Aug 1974 [24 Aug 1973] 36476/74 Heading A5E A herbicidal composition comprises metoxuron (N'-(3-chloro-4-methoxy-phenyl)-N, N- dimethyl urea) in association with triallate (S-2, 3, 3-trichloroallyl-N, N-diisopropyl-thiolcarbamate). The composition is suitably in granular form and finds application in selectively combating weeds in crops such as wheat or barley.
Patent GB-816364-A (GB)
Title: Apparatus for testing the fluid pressure-tightness of pipes and tubes
IPC: G01M3/28
Filed: 1957-11-22
Abstract: 816,364. Testing pipes. PASQUALE C., GAMBERA, F., and REGIS, L., [trading as R. C. M. REVISIONE COSTRUZIONE MACCHINE]. Nov. 22, 1957 [April 16, 1957], No. 36532/57. Class 99(2). Apparatus for testing the fluid-pressuretightness of pipes which is provided with quickacting means for clamping and releasing the pipes, comprises at least one intermediate support 7 for a pipe T to be tested, and two movable carriages 4, each of the latter being provided with holding and sealing means 13, 6. When the pipe is supported by the support or supports the carriages are moved towards the pipe and the two ends of the pipe are held by the holding means before the sealing means come into contact with the exterior surface of the pipe. As shown, stationary pillars 2 provided at the ends of a bed-plate 1 are interconnected by bars 3, and sleeves 9 are rotatable by reversible electric motors 12 through gears 10 and belts 11, screws 8 engaged in the nuts being fast with the carriages 4 which are mounted on rollers 5. Rods 14 extending through the screws 8 and the headers 4a mounted on the carriages carry holding members 13 at one end for abutting the pipe ends and, at the other end, flanges 15 acted upon by the springs 16 located in stationary supports 17, the inner faces of the flanges bearing, in the inoperative condition thereof, against the ends of the screws 8 to maintain the members 13 spaced by a distance A from the ends of the pipe. The annular seals 6 slide over the rounded and polished outer peripheries of the members 13 to prevent contact thereof with sharp edges on the pipe ends. In operation, with a pipe placed on the supports 7, the motors 12 move the carriages towards the ends of the pipe T and, when the screws 8 move axially within the nuts 9 the members 13 move under the action of the springs into contact with the pipe after which the seals 6 pass over the pipe ends. Water under pressure is delivered through a connection 4b in the headers 4a.
Patent GB-1481658-A (GB)
Title: Turbo vacuum pump
IPC: F04D29/056
Filed: 1975-09-05
Abstract: 1481658 Bearings BALZERS PATENT-UND BELEILGUNGS AG 5 Sept 1975 [27 Sept 1974] 36556/75 Heading F2A [Also in Divisions F1 and G3] A turbo vacuum pump comprises a stator and a rotor arranged in a cylindrical casing 1 having an exhaust port 3 and a suction port 2, and means for radially journalling and further means for axially journalling the rotor, which further means comprise an arrangement of permanent magnets 15 mounted on the rotor and generating a substantially radial magnetic field, and a coil 17 fixed relative to the casing and coaxial with the rotor, and dipping into the field of the permanent magnet arrangement. Current flowing in the coil exerts an axial force on the rotor, and is controlled by a sensor 18 which detects changes in the position of the rotor. The means for radially journalling the rotor comprise arrangements of permanent magnets 9, 12, opposite which ferromagnetic or permanent-magnetic sections 8, 11 of the rotor are positioned. Conical bearing bushes 20, 21 serve as emergency bearings. Means 19 for re-inforced damping of radial movement may be provided. The coil 17 and the stator 24 of a commutator-less driving electric motor may be combined into a structural group which can be dismantled from the pump casing without interference with the rotor or stator of the pump.
Patent GB-175854-A (GB)
Title: Improvements in or relating to variable speed gear
IPC: F16H3/08
Filed: 1920-10-22
Abstract: 175,854. Oddie, F. A., and Kingston, W. H. Oct. 22, 1920. Variable speed gearing. - Three-speed and reversing spur gearing is arranged as shown in Fig. 1. A driven shaft C is in line with a driving-shaft A to which is secured a pinion and clutch member B. Secured to a lay shaft J are gears H, K meshing respectively with the gear B and a gear and clutch member G loose on the shaft C. Integral wheels D, E slide on feathers on the shaft C and can be brought into clutch engagement with the gears G, B, respectively. Independently-turning gears M, N loose on the shaft J slide together so as to be brought into clutch engagement with the gears H, K, respectively. The gears M, E are in mesh. The gears N, D are connected by an idler 0. A direct drive is obtained through the clutch members B, E. A second speed through the train B, H, J, K, G, D. A third or low speed through the train B, H, M, E. Reversed driving is obtained through the train B, H, J, K, N, 0, D. The gearing may be operated by the means described in Specification 175,701.
Patent GB-368736-A (GB)
Title: Improvements in or relating to the tin pots or baths employed in the manufacture of tin, terne and like metal coated plates or sheets
IPC: C23C2/00
Filed: 1930-12-05
Abstract: 368,736. C o a t i n g with metals. THOMAS, H. S., Melingriffith Works, and DAVIES, W. R., St. Petroc, Park Road, both in Whitchurch, Glamorgan. Dec. 5, 1930, No. 36671. [Class 82 (ii).] In apparatus for coating metal plates with tin or other metal by dipping, a roller placed in the forepart of the tin pot and partially immersed in the meta:. acts as a flux-retaining means and co-operates with means for passing the plates through the flux and metal. A layer of flux 7 resting on molten tin 8 in a tin pot 9 is confined by a roller 6 placed in the forepart of the pot which co-operates with a platecarrying cradle formed of parallel bars 11 of the same curvature as the bed 9a of the pot which are reciprocated by rods 12. The rods 12 work in gapped portions 5a of the lower roll of feed rolls 5 and the plates, on leaving the feed rolls, are transferred to the cradle by a pusher device comprising reciprocating rods 13 with pusher ends 13a working in gaps in the upper of the feed rolls. On the forward movement of the cradle the bars 11 pass between gapped portions 10a of delivery rolls 10 so that the plates are guided to the nip of the delivery rolls without kinking or bending. The roller 6 exerts only a slight pressure on the plates. The Provisional Specification describes a modification in which the plates are passed through the metal by a pair of rolls, one of which is partially immersed in the metal and serves as the flux retaining means, the other being geared thereto and either partially or wholly immersed in the metal. Specifications 28450/13 and 109,302, [both in Class 82 (ii), Washing granular &c.], are referred to.
Patent GB-368556-A (GB)
Abstract: 368,556. Electrolytic purification of hydrogen peroxide solutions. OESTERREICHISCHE CHEMISCHE WERKE GES. 5, Technikerstrasse, Vienna. April 11, 1931, No. 10714. Convention date, Aug. 18, 1930. [Class 41.] A cell for the electrolytic purification of hydrogen peroxide solutions comprises relatively narrow annular electrode spaces completely separated by a diaphragm, the outer space being enclosed between the wall a of the cell and the diaphragm b, and the inner one between the diaphragm and an immersed body c. The diaphragm and the body c are supported on plates d. The diaphragm extends above the outer cell to allow a greater head of liquid to be maintained therein. Electrolyte is fed to the inner and outer spaces at o, p respectively and leaves at m, n. Cooling water is fed to the inside of the body c at k and leaves at l. The inner electrode g, e.g. the cathode, may be of graphite rods connected to an aluminium ring h, and the outer electrode i of platinumtantalum strips. A number of cells may be arranged with electrolyte flow in cascade. Liquid may be passed repeatedly through the inner space. The outer space may be without external electrolyte supply, being fed only by diffusion and electrolytic transport. The body c may be of glass or of a metal resistant to the electrolyte such as tin or V2A steel; in the latter case it may serve as an electrode. The diaphragm may be of unglazed porcelain, earthenware, gurocel, or a tissue impregnated with artificial resins.
Patent GB-1498144-A (GB)
Title: Autodeposited coatings on metal surfaces
IPC: C09D5/08
Filed: 1975-09-09
Abstract: 1498144 Resin coated metal substrates AMCHEM PRODUCTS INC 9 Sept 1975 [9 Sept 1974] 36949/75 Heading B2E  An uncured auto deposited coating on a metal surface, e.g. steel panels, is treated with a coalescing agent after it has been formed. Suitable coalescing agents include ethylene glycol, triethylene glycol, acetoxylacetone, butyl lactate, isopropyl lactate, ethyl lactate, ethyl acetoacetate, diethylene glycol ethyl ether, 2-ethoxyethenol, 2-butoxy ethanol, diethylene glycol monobutyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, tripropylene glycol methyl ether, acetonyl, methenol ethyl ether, 2-ethoxy ethyl acetate, diethylene glycol monobutyl 'ethyl acetate. Suitable resins include styrene/butadiene copolymer, acrylic polymers, polyacrylonitrile, polyethylene and ethylene vinyl acetate cbpolymers. The coating composition may include acids, e.g. sulphuric, hydrochloric, hydrofluoric, nitric, phosphoric; acetic, chloroacetic and trichloroacetic. It may also include oxidising agents, e.g. hydrogen peroxide, dichromates, nitrites, chlorates, permanganate, persulphates and perborates. The coalescing agent may be present in an aqueous rinse composition at a concentration of at least 10 g/litre, e.g. 20-100 g/litre, preferably 20-30 g/litre. The contact time of the coalescing agent with the coating may be 30 seconds to 5 minutes. Treatment may be by immersion or mist spraying. Other rinses may be employed before or in conjunction with the coalescing agent. The corrosion resistance of the coatings may be improved by treating with an aqueous rinse containing hexavalent chromium or partially reduced chromic acid, e.g. with formaldehyde water rinses may be employed before treatment with the coalescing agent.
Patent GB-369695-A (GB)
Abstract: 369,695. Flushing valves. HELLYER, R. H., 35, Red Lion Square, London. Jan. 17, 1931, No. 1620. [Class 135.] In an automatically-closing flushing valve of the kind having a hollow piston operated main valve 4, Fig. 1, controlled by an auxiliary valve 5 by the operation of a lateral plunger 6, the bleed hole 8 controlling the duration of flush is protected from choking by dirt by one or more layers 10 of fine gauze removably secured by a screwed ring 11 to a plug 9 itself removably screwed into the wall of the main hollow piston. Fig. 2 shows a modified arrangement.
Patent GB-848075-A (GB)
Title: Improvements in or relating to control means for effecting controlled movement of a member in an enclosed space
Inventor: BRITT JACK
IPC: G21C7/12
Filed: 1955-12-23
Abstract: 848,075. Controlling nuclear reactors. ROLLS-ROYCE Ltd. March 22, 1957 [Dec. 23, 1955], No. 37005/55. Class 39(4). [Also in Groups XXIX and XXXVIII] The insertion of a neutron absorbing control rod 10, Fig. 1, into the core of a nuclear reactor is effected by a piston 11 formed on the rod and to either side of which the reactor coolant e.g. liquid sodium may be directed by a normally lapped piston valve ; around the piston 11 is an iron element 17. Externally of the cylinder 12 is a horse shoe magnet 20 pivoted at 21 to a rack 18, the magnet straddling the cylinder so that in the position of the piston shown the element 17 lies between the magnet poles ; the magnet carries upper and lower contacts 22, 23 which co-operate with similarly disposed contacts 26, 25 respectively, on the rack, Upon moving the rack up or down to select a new position of the rod 10, poles of the magnet remain adjacent the element 17 whilst the pivot 21 is moved with the rack so causing the magnet to rock whereby either contacts 22, 26 or 23, 25 will make and energise one of two relayactuated solenoids that control the piston valve, so directing fluid to lift or lower the piston 11 until the latter has moved sufficiently to restore the magnet to the equilibrium position shown. In a modification, a movable reactor controlling part 40, Fig. 4, disposed in a closed chamber 41, comprises a cylinder 42 in which is a fixed piston 43, the cylinder 42 being connected to a supply pipe 46 which contains a constriction 47 where it passes through the piston. The part 40 has an extension 48 connected to a hollow guide 50 that extends into a projection 49 of the chamber 41; the guide 50 is open to the cylinder 42 by a bore 51 the outflow from which is controlled by a half-ball closure 53 on a block 54 movable in the guide 50, the block 54 being attached to an axially-slotted iron-member 57 by a lever 55. The projection 49 is encircled by a cylindrical magnet 58 carried by a rack 59. The supply pressure in pipe 46 is higher than in chamber 41 so that fluid flow takes place through constriction 47, cylinder 42, bore 51, guide 50 and holes 61 into chamber 41; a resultant upward pressure is therefore exerted on the part 40 which thus takes up an equilibrium position in which the upward force is balanced by the weight of the part 40 and the elements carried thereby. If the rack is moved up or down the closure 53 is moved through the magnet 58 and iron member 57 to decrease or increase the pressure in the cylinder 42 whereby the part 40 is lowered or lifted until equilibrium is again attained. The position of either rack 18, Fig. 1, a rack 59, Fig. 4, may be controlled in accordance with change of neutron flux or reactor coolant temperature.
Patent GB-1028005-A (GB)
Title: Process of extruding silver-graphite articles
IPC: H01H1/025
Filed: 1963-09-20
Abstract: In a process of extruding a silver graphite compact containing up to 10% graphite, a silver disc is inserted in the die between the die and the silver graphite compact which may be in the form of a powder, a powder compact on a sintered compact, and extruding to form a silver graphite compact sheathed with silver.  The silver disc preferably has a hole in its centre and the compact is preferably extruded at 750 DEG -780 DEG C. either horizontally or vertically. The sheathed compact may be further marked e.g. cold drawn and the silver sheath is finally removed.
Patent GB-1159132-A (GB)
Title: Improvements in Internal Combustion Engines
IPC: F02M23/06
Filed: 1966-08-18
Abstract: 1,159,132. Extra air admission devices. MERKURIUM A. G. Aug. 18, 1966 [Aug. 31, 1965], No. 37046/66. Heading F1B. The supply of extra air is controlled by a valve 14, Fig. 3, operated in accordance with engine speed. Valve 14 is urged towards the left by spring 26 and is moved towards the right in two stages at different engine speeds by electromagnets 20, 18. Pulses from the engine ignition circuit are fed through amplifier 28 to the frequency response devices 30, 31, of which 30 is tuned to a frequency corresponding to an engine speed in the range 3000- 4000 r. p. m. and 31 to a frequency in the range corresponding to 800-1200 r. p. m. At idling, valve 14 is in its far left position in which the extra air passage 12 is closed. At the engine speed for which device 31 is set, a pulse from device 31 operates an output device 32 to energize electromagnet 20 which moves valve 14 to an intermediate position in which the extra air passage 12 is open; at the engine speed at which device 30 is set, electromagnet 18 is energized to move valve 14 further to the right and cut off the extra air supply. In a modification the electromagnets 20, 18 are controlled by a switch (61, Fig. 6, not shown), operated by a centrifugal governor. The extra air is supplied to a flange device (1, Fig. 1, not shown), bolted between the carburetter and intake manifold, the air flowing from an annular passage (2) through orifices (3) into the fuel-air mixture.
Patent GB-896882-A (GB)
Title: An improved sieve-drum drying apparatus
IPC: F26B13/16
Filed: 1958-11-18
Abstract: 896,882. Drying fabrics, loose fibrous material, &c. FLEISSNER G.m.b.H. Nov. 18, 1958 [March 19, 1958], No. 37055/58. Class 34(1) A sieve drum drier comprises shutter means mounted within the drum and spaced apart from a portion of the drum periphery and co-operating therewith to form a cavity into which a fluid current set up by means within the chamber surrounding the drum can enter and thence flow out of the drum from the cavity at a predetermined position in the chamber to impinge on the inside surface of the material to be dried so as to assist separation of the material from the drum. Horizontally-disposed sieve drums 5 within a chamber 2a have impervious semicircular shutters 1 mounted within the drums and co-operating therewith to form cavities 2, each shutter terminating with radially extending baffles 7 extending to the periphery of the associated drum. Means (not shown) provide heated fluid flow 11 within the chamber which passes through the web of material 10 for exhaustion through the unscreened portions of the drums and a flow 4a also enters the cavity 2 of the final drum 5a and passes through a passage 9 formed by the baffle 7 between the cavity 2 in the drum and the interior of a discharge shoot 3 to impinge on the inner surface of the discharging material portion 10a to prevent the portion clinging to the drum. The current 4a thereafter passes through and above the portion 10a and is deflected by a baffle 12 on the shoot which extends almost to the drum 5a so as to enter the drum through the material for exhaustion.
Patent GB-435513-A (GB)
Title: Manufacture of mordant dyestuffs
IPC: C09B43/11
Filed: 1934-12-27
Abstract: Mordant dyeing azo-dyes of the formul  R1N = NR2NHRx or R1N = NR3N = NR4NHRx wherein R1 stands for a benzene nucleus containing a hydroxyl group and a carboxyl group in o-position to one another, R2 stands for a sulphonated benzene or sulphonated naphthalene nucleus, R3 and R4 stand for benzene or naphthalene nuclei of which at least one is sulphonated, and Rx stands for an unsulphonated benzene nucleus advantageously containing negative groups, are prepared (a) by reacting an aminoazo compound of the formul  R1N = NR2NH2 or R1N = NR3N = NR4NH2 (wherein R1, R2, R3 and R4 have the aforesaid meanings) with an unsulphonated benzene derivative containing an easily exchangeable halogen atom; or (b) by first reacting one amino group of a diamino compound of the general formula NH2R2NH2 or NH2R3N = NR4NH2 (wherein R2, R3 and R4 have the aforesaid meanings) with an unsulphonated benzene derivative containing an easily exchangeable halogen atom, then diazotizing the second amino group and coupling the diazo-compound with an o-oxycarboxylic acid of the benzene series.  In examples: (1) the azo dye 4-nitraniline - 2 - sulphonic acid --> salicylic acid is reduced to convert the nitro group to amino and condensed with 2,4-dinitrochlorbenzene in presence of sodium acetate or calcium carbonate; the dye yields reddish-yellow shades chrome-printed on cotton; picryl chloride may be used in place of 2,4-dinitrochlorbenzene; (2) m-phenylenediamine is condensed with 2,4-dinitrochlorbenzene, the product diazotized and coupled with salicylic acid; the dye yields yellow shades chrome-printed on cotton; as coupling components in place of salicylic acid there may be used o- and m-cresotinic acids, chlorsalicylic acid; (3) 3-nitraniline-4-sulphonic acid is diazotized and coupled with m-toluidine, the nitro group in the resulting product reduced to amino by means of sodium sulphide and the product condensed with dinitrochlorbenzene and finally coupled with salicylic acid; it yields yellow-brown shades chrome-printed on cotton; (4) the aminoazo dye p-aminosalicylic acid --> 1-naphthylamine-6- or 7-sulphonic acid is condensed with dinitrochlorbenzene; the resulting dye yields brown shades chrome printed on cotton.
Patent GB-1163435-A (GB)
Title: Catalytic Condensation of Ethers
Inventor: PAXTON JOHN COLTHERD
IPC: C08G61/02
Filed: 1966-08-23
Abstract: 1,163,435. Synthetic resins prepared from ethers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 3 Aug., 1967 [23 Aug., 1966], No. 37761/66. Heading C3R. Synthetic resins containing in the molecule aromatic nuclei linked by methylene bridges, are obtained by condensing ethers of formula Ar(CH 2 0X)y, where Ar is an aryl group having a valency y of at least 1 and optionally containing one or more inert substituents in addition to CH 2 OX, there being at least one free hydrogen atom in the nucleus, and X is an alkyl group, the ethers being condensed either alone or with other compounds containing aromatic nuclei having free hydrogen atoms, by heating in the presence of a catalyst consisting of an acidic clay. The clay may be one which is already acidic, e.g. kaolinite, or a mineral acid may be added to a clay which is not acidic, e.g. ball clay. In examples, synthetic resins are obtained by heating p - di(methoxymethyl)benzene, alone and with o-, m- and p-diphenyl benzenes, in the presence of kaolinite and ball clay acidified with sulphuric and phosphoric acids, methyl alcohol being liberated.