baber/WOPTO huggingface dataset:
Patent GB-1177177-A (GB)
Title: Electrolytic Oxidation Process
Inventor: BRAY PATRICK ROYSTAN
IPC: C07C255/65
Filed: 1967-03-23
Abstract: 1,177,177. Azo compounds by electrolytic oxidation. FISONS INDUSTRIAL CHEMICALS Ltd. 5 March, 1968 [23 March, 1967; 28 June, 1967; 30 Jan., 1968], Nos. 13614/67, 29752/67 and 4599/68. Heading C2C. [Also in Division C7] Hydrazo compounds of the formula where X and Y are any suitable radical which may be the same or different, are oxidized to the corresponding azo compound by electrolysing a solution or suspension containing the hydrazo compound and an oxydizing agent having an oxidation potential sufficient to oxidize the hydrazo compound, e.g. a bromide or a salt containing vanadium, titanium, chromium, manganese, or cerium in the anion, or a mixture thereof. In the formula X and Y may be phenyl, substituted phenyl or may have the formula where R<SP>1</SP>, R<SP>3</SP>, R<SP>3</SP> and R<SP>4</SP> represent hydrogen, alkyl, cycloalkyl, aryl, or aralkyl, substituted or unsubstituted, e.g. the substitutent groups may be halo, e.g. chloro; cyano; hydroxy; alkoxy; carboxylic; amino or nitro. The alkyl groups may be n-propyl, isobutyl, octyl, dodecyl, ethyl or methyl. The cycloalkyl group may be cyclopentyl or cyclohexyl. The aryl group may be ethylphenyl, naphthyl or phenyl. The aralkyl group may be naphthylethyl or benzyl. The hydrazo compound may be a hydrazo formamide in which one or more of the amide nitrogen atoms may be substituted by one or more methyl; ethyl; phenyl or benzyl groups, or may be hydrazoisobutyronitrile; cyclohexanehydrazonitrile; hydrazobenzene; 2,3<SP>1</SP>-hydrazobenzoic acid; 4-methyl-hydrazobenzene. The electrolyte may contain as a supplementary electrolyte an acid or salt, e.g. nitric, sulphuric or hydrochloric acids; or salts thereof having as cation an alkali metal, ammonium, alkaline earth metal, iron, tin, copper or zinc. A divided cell may be used, the hydrazo compound being present in the anode compartment only. The diaphragm used may be of asbestos cloth or porous ceramic, the cathode may be of nickel, iron, carbon or stainless steel and the anode may be of platinum, e.g. platinum gauze; or carbon. Examples detail the production of azodicarbonamide and azoisobutyronitrile.
Patent GB-1000514-A (GB)
Title: System for the protection of silicon and germanium rectifiers
IPC: H02M7/06
Filed: 1962-02-06
Abstract: 1,000,514. Rectifying. G. ARANA-ORMAZABAL. Feb. 6, 1962 [Feb. 10, 1961], No. 4620/62. Heading H2F. In order to protect germanium or silicon rectifying elements 1 in a rectifying circuit a string of selenium rectifying elements poled in the conductive sense are included in series with the load 7, 8, these selenium elements having the characteristic that their resistance increases with load current. An overload protection relay 3, circuit-breaker 4 and control switches 6 are included in the circuit. Embodiments showing a polyphase bridge, a biphase circuit, a singlephase bridge, a 3-phase star connection and a 3 x 2-phase connection are disclosed.
Patent GB-901088-A (GB)
Title: Improvements in or relating to methods of making internally slitted strip material
Inventor: WILKINS RICHARD ALFRED
IPC: B21D53/04
Filed: 1959-02-10
Abstract: 901,088. Making expansible strip for heat exchangers; composite casting; jointing by rolling. REVERSE COPPER & BRASS Inc. Feb. 10, 1959, No. 4657/59. Classes 83 (1), 83 (2) and 83 (4). A method of making metal strip having between its faces one or more slits capable of being expanded to form tubular passages comprises forming a cast billet with one or more longitudinal passages therethrough, filling the passages with stop weld material and then rolling the billet into strip. The passages are formed either by casting the billet around metal tubes held in a mould and into which stop weld material is packed before or after casting or by casting the billet around solid or tubular metal inserts which are subsequently withdrawn. The tubular inserts may be of rectangular section as shown in Fig. 5 or may be formed by partially flattening round tubes. Alternately they may be built up of one plain and one grooved strip, Fig. 6, or by two plain strips 117, 118 and spacers 119, Fig. 4, the adjoining portions becoming welded together during the subsequent casting and rolling. If the tubes are of a metal of lower melting point than the metal to be cast around them, the pouring temperature and the thickness of the tubes are so co-ordinated that the tubes melt inwardly for part only of the wall thickness, a thin coating of a dissipatible insulating material for delaying such melting being used if necessary. When casting aluminium, a mixture of chalk, water and sodium silicate could be used or for copper, a solution of resin in alcohol, with or without bone ash would be suitable. When the tubes have a higher melting point than the metal to be cast, they may be coated with a flux to facilitate bonding. When the inserts are to be withdrawn from the billet they are coated with a mould dressing and are of an alloy having a higher coefficient of expansion than the metal to be cast, over the cooling range. The mould is similar to that described with reference to Specification 784,484. After casting the billet, the protruding ends of the tubes are cut off and closed at the bottom by a tack-welded strip 87 prior to being filled with a stop weld material such as alumina, zinc oxide, magnesia, boron nitride, china clay, aluminium silicate or titanium oxide. The upper ends are then closed by another strip 93, vents 95 being left for the discharge of air and vapour during heating to hot rolling temperature. During hot rolling the strips 87, 93 become detached. Further reduction to the required thickness is by cold rolling.
Patent GB-729359-A (GB)
Title: Improvements in or relating to continuous casting plants
IPC: B22D11/08
Filed: 1953-02-19
Abstract: 729,359. Continuous casting. BOHLER & CO., AKT.-GES., GEB. Feb. 19, 1953 [Feb. 20, 1952], No. 4659/53. Class 83 (1). Apparatus for continuous-casting plants comprises a closing device and a lowering pipe or dummy having a connection which is automatically released by the lowering rolls. The lowering pipe 4 has a cap 3 at its upper end. In a bore 5 in the cap is a pivoted latch 6. The bent upper end 9 of the latch engages a projection 8 in a member 1 which closes the end of the ingot mould at the beginning of casting. A flange 2 on the closing member 1 is surrounded by metal in the mould and forms a connection with the ingot by which the latter may be drawn out of the mould by driving rolls (not shown) engaging the lowering pipe. A bolt 11 protrudes from the member 1 and also engages the upper end of the latch. When the bolt 11 reaches the driving rolls it is pressed inwardly and disengages the latch, thus allowing the lowering pipe to be detached.
Patent GB-928140-A (GB)
Title: Improvements in or relating to electrical generating systems for motor ships
IPC: B63H23/24
Filed: 1961-02-08
Abstract: 928,140. Generating arrangements. LONDON & OVERSEAS FREIGHTERS Ltd., and E. A. MACKENZIE. Dec. 15, 1961 [Feb. 15, 1961], No. 4718/61. Class 38 (4). A ship's generating system may have one or a plurality of diesel engines 10 each coupled to a propeller shaft 12 and a generator 16, the generator-feeding a motor 18 coupled to a main steam turbo alternator set 21, 22, the turbine of which may be supplied with steam from an exhaust heat boiler and which alternatively or additionally drives the main generator 21. The boiler may be provided with an auxiliary means of firing such as oil. An exciter set 26, 29, 31, fed from the main generator output and fitted with an automatic voltage regulator 33 may be provided together with an automatic current controller 36 to give constant power output of the motors. An auxiliary dieselelectric generator (not shown) may be power for the exciter set on starting up.
Patent GB-198024-A (GB)
Title: Improved process and apparatus for electrolysing fused salts of metals and recovering the metals and acid radicles, and the application of the said process and apparatus to the recovery of valuable constituents from metal bearing ores, and materials
IPC: C25C7/00
Filed: 1922-02-18
Abstract: 198,024. Ashcroft, E. A. Feb. 18, 1922. Electrolytic furnaces.-The electrolysis of fused metallic salts, such as fused chloride of zinc or lead, or a mixture thereof, is effected in an electrolyser provided with a series of closelyspaced electrodes constituting a series of electric couples immersed in the same electrolyte, only the first and last of the electrodes of the series being connected to the external circuit. Fig. 1 shows an electrolyser comprising a refractory container A, or a metal container lined with refractory material, surrounded by a casing of kieselguhr. The electrodes consist of a number of inclined graphite plates B<1> - - B" resting on steps b of fused silica, vitreosil or obsidianite, the steps b for the lowest plate being of graphite. Fused zinc chloride is introduced through an opening a<4> at about 350‹ to 400‹ C. and the temperature of the electrolyte is maintained between 420‹ and 600‹ C., and preferably between 450‹ and 500‹ C., during electrolysis. This may be done by applying external heat in the form of a jacket through which superheated steam, hot air, or hot oil is circulated, by supplying a supplementary alternating current, or by supplying more direct current than is recessed for electrolysis. Zinc flows downwards through the perforations b<2> in the electrodes to the reservoir a<2> which is provided with a tap-hole a<3> and chlorine passes up through the perforations b<3> to the outlet D. A suitable proportion of sodium, potassium, or magnesium chloride may be added to the electrolyte to increase its conductivity. In a modification the electrodes consist of funnel-shaped plates through the centre of which passes a silica tube containing a graphite negative conductor. Fig. 5 shows an electrolyser with a number of saddle shaped electrodes B<1> - - B<9> mounted on refractory partitions, the end electrodes B, B<10> being connected directly to carbon rods E, E<2> which supply the current. The zinc gathers in a number of separate compartments a<2> having outlets a<3>. The saddle-shaped electrodes may be replaced by graphite plates mounted in grooves in the sides of the container A. In every case the electrodes may be corrugated or grooved as desired. The current density used is 2 amps. per square inch of electrode surface. Metallic ores and other metal bearing materials are chlorinated and then subjected to the above process to obtain the pure material.
Patent GB-432090-A (GB)
Title: Improvements in or relating to road roller vehicles
IPC: E01C19/26
Filed: 1935-02-15
Abstract: 432,090. Road rollers. FLAMAND, S., 5, Naestvedvej, Ringsted, Denmark. Feb. 15, 1935, Nos. 4961 and 4962. Convention dates, Feb. 20, 1934 and Jan. 23, 1935. [Class 6 (i)] [See also Group XXXI] In a road roller having three or more rollers or sets of rollers on axles disposed one behind another mechanism is provided for raising or lowering the front end of the chassis relative to the front roller and for maintaining it in adjusted position, the centre of gravity of the whole vehicle being so positioned that by adjustment of the mechanism the chassis may be tilted forwardly to raise the rear rollers from the ground to shorten the effective length of the vehicle to facilitate steering. In a roller comprising a front roller, two intermediate rollers, and two rear rollers, the intermediate roller and the rear roller on each side are driven by a common chain from a differential shaft driven by an engine, and the centre of gravity is positioned slightly in front of the axles of the intermediate rollers. The fork of the front roller is journalled in a bearing h, Fig. 4, carried by a trunk forming part of the chassis. It is adjustable by rotating a screw-threaded sleeve l engaging screw threads on the vertical stud or pivot k of the fork. The sleeve l is rotated by worm and bevel gearing from a manually-operated shaft r provided with a hand-wheel near the driver's seat. In a modification the front roller may be mounted in eccentric bearings for adjustment purposes. In the modification shown in Fig. 7, the vertical pivot of the front roller fork is surrounded by a screw-threaded sleeve engaging a nut actuated by a worm 9 driven by chain gearing and a clutch 19 from a shaft 13 which is connected by chain gearing to a reversible shaft 17 driven from the engine. The clutch 19 is operated by a bellcrank lever 20, link rod 21, and a hand-lever 22, Fig. 8. The shaft 17 is reversed by displacing it longitudinally by means of a bellcrank lever 29, link rod 31, and a hand-lever 32. This brings one or other of two friction cones 27, 28 on the shaft 17 into engagement with a fibre cone 26 on a shaft constantly driven from the engine. The two levers 22, 32 may also be used for steering by the power of the engine. A slotted steering-arm 35 for turning the front roller fork is connected by a pivoted slide block 36 to a nut on a threaded spindle 38 driven from the shaft 13 by chain gearing and teeth on the back of the clutch member 19, when the lever 22 is rocked rearwardly. Steering may also be effected by hand by rotating the shaft 38 by turning a hand-wheel on a shaft 46 connected to the shaft 38 by bevel gearing. The raising and lowering of the front end of the chassis may be effected manually by turning the shaft 17 by means of a crank handle engaging a slot 49 in the shaft.
Patent GB-1134071-A (GB)
Title: 3-unsubstituted-4-oxo-í¸-steroids
Inventor: ELLIS BERNARD
IPC: C07J31/00
Filed: 1966-02-04
Abstract: 1,134,071. 3-Unsubstituted-4-oxo-#<SP>5</SP>-steroids. BRITISH DRUG HOUSES Ltd. 23 Jan., 1967 [4 Feb., 1966], No. 4975/66. Heading C2U. 3 - Unsubstituted - 4 - oxo - #<SP>5</SP> - steroids are prepared by reacting 3#,4#-dihydroxy-#<SP>5</SP>-steroids or their 4-acylates with an alkyl- or aryl-sulphonyl halide to form the corresponding 3-sulphonyloxy derivative, and reacting this with a basic reagent. Examples describe the preparation, inter alia, of the novel 17#-hydroxy- 17α - methylandrost - 5 - en - 4 - one; 16α,17α- epoxy - 16# - methylpregn - 5 - ene - 4,20- dione; 17α - hydroxy - 16 - methylenepregn - 5- ene - 4,20 - dione; and 17α - hydroxypregn- 5 - ene - 4,20 - dione.
Patent GB-916303-A (GB)
Title: Outsole and method of manufacture
IPC: A43B13/24
Filed: 1961-02-10
Abstract: 916,303. Soles. GOODYEAR TIRE & RUBBER CO. Feb. 10, 1961 [June 28, 1960], No. 4999/61. Class 17 (2). At least two outsoles including a bonded insert are fabricated by placing the insert 7 into a correspondingly-shaped cavity in the outsole blank, bonding, and cleaving the resulting article parallel to its top face. This forms the outsoles 9 and 10 with the boundary of the insert 11 being cleanly and smoothly defined on the cleaved surfaces. The blank may be made of a rubbery material with an insert of a material which is similar but more resilient in its final condition, i.e. after bonding by vulcanization.
Patent GB-1169221-A (GB)
Title: Synchronisation of Machine Tools
Inventor: LEWIS JOHN ROBERT SYLVESTER
IPC: B24B19/02
Filed: 1966-02-04
Abstract: 1,169,221. Grinding. TAP & DIE DEVELOPMENT CENTRE Ltd. 3 Feb., 1967 [4 Feb., 1966], No. 5080/66. Heading B3D. An apparatus for synchronizing the linear movement of a workpiece 12 or tool 18 with the rotational movement of the workpiece comprises a planar linkage having a rigid first lever 26 with movable connections 32, 33, 34 at three different points along its length, the first connection 33 being pin-and-slot and to a first screw-threaded member 24 which is non- rotatable and the axis of which lies substantially perpendicular to the first lever, the pin being both rotatable and slidable in the slot, the first screw threaded member 24 co-operating with a second screw-threaded member 20 coupled for rotation with the workpiece, the second connection 32 being to a second rigid lever 16 substantially perpendicular to the first lever and associated with a structure 13 carrying the tool or workpiece, the third connection 34 being to a stationary member 14, and the first lever and structure each having two or more spaced points to which opposite ends of the second lever are connected. The workpiece 12 is mounted in a headstock 10 slidable on the machine bed 14 so that a screw thread is formed on the workpiece by a grinding wheel 18. The rotary movement of the workpiece is transmitted by a splined connection 22 to the screw-threaded member 20 which is held against axial movement and engages the first screw-threaded member 24. The latter is held against rotation and connected by the first, pin-and-slot, connection to the first lever 26 which, at its other end, is mounted by the adjustable connection 34 to the bed 14 of the machine. The first lever 26 is connected by the second connection 32 to the second lever 16, the other end of which is connected to a member 28 on the workpiece carriage, the first lever and member 28 having a plurality of locations 30 whereby the second lever can be adjusted. In another arrangement both the first and second connections consists of pins engaging slots perpendicular to the member 20 and lever 16. A spring, weight or hydraulic or pneumatic means may be provided to take up play between the first lever 26 and member 28. In an alternative embodiment, the grinding wheel is moved axially and the workpiece held against axial movement.
Patent GB-797153-A (GB)
Title: Improvements relating to hydraulic clutches
IPC: F16D33/06
Filed: 1956-02-17
Abstract: 797,153. Hydrodynamic couplings. DAIMLER-BENZ. AKT.-GES. Feb. 17, 1956 [Feb. 17, 1955], No. 5085/56. Class 69 (2). A turbo-coupling in which liquid is continually drained from the working chamber or chambers, is formed with at least one peripheral series of chambers into which the liquid drains, and from which the liquid is discharged through one or more exhaust ducts. In a coupling having a double turbine and a double pump, the shells 1, 1<SP>1</SP> of the pump part are extended axially and formed with a series of recesses 26, 27 which form, with the back of the turbine, two series of chambers which are interconnected by passages 28 and a continuous groove 29. Liquid escaping from the periphery of the working circuit passes into the chambers and exhausts through one or more ducts 31. In a modification (Figs. 3 and 4, not shown), the shells of the pump part are joined by an intermediate ring which is recessed to provide a series of chambers. The couplings are particularly suitable for the drive of a supercharger, which calls for small slip at slow speed and considerable slip at high speed of the engine. The ports through which liquid leaves the series of chambers are at a distance r<SP>1</SP> from the axis of the coupling which is greater than the distance r from said axis of the gaps between the pump and turbine through which liquid enters the chambers. This ensures a rate of flow which gives adequate cooling when the slip is high. Specification 500,401 is referred to.
Patent GB-241441-A (GB)
Title: Improvements in toggles or grippers
IPC: C14B1/26
Filed: 1925-02-24
Abstract: 241,441. Johnson, J. Y., (Proctor & Schwartz, Inc.). Feb. 24, 1925. Clips, sliding-jaw; pivoted-jaw. - A clip specially for use in stretching leather on drying frames comprises an eccentric toothed jaw 5 pivoted to the body 1 of the clip and a jaw 3 carried by a finger-hold 2 on the clip and moved towards the jaw 5 by means of a hand-lever 10 which is pivoted in a U-shaped bracket 9 and carries a roller 11 which bears against a plate 12 on the jaw 3. A spring 15 presses the jaw 3 outwardly. The body 1 has a recess at the back in which rests a plate 17 with a hook 18 to engage a support 19. In a modification, the jaw 3 is formed as a continuation of the hold 2, and the hook 18 is stamped up from the body 1. In a further modification, Fig. 8, the jaw 3<b> is separate from the hold 2, and the top thereof passes through the body 1<b> of the clip to form a carrying hook 18<b>. The jaw is shaped to fit a cam on a hand lever 10<b> so that rotation of the lever presses the jaw inwards against the action of a spring 15<b>.
Patent GB-853344-A (GB)
Title: Atomizer for liquid fuel for internal combustion engines
IPC: B05B3/02
Filed: 1958-02-18
Abstract: 853,344. Carburetting apparatus. VYZKUMNY A ZKUSEBNI LETECKY USTAV. Feb. 18, 1958 [Feb. 18, 1957], No. 5236/58. Class 7(3). An atomiser for liquid fuel for internal combustion piston engines provided with superchargers comprises a rotatable body attached to the rotor of the supercharger, the body being provided with an axial cavity, a fuel supply tube coaxial with the rotatable body extending from one side into the cavity, a plurality of substantially radial channels in the body, the channels communicating with the cavity, a nozzle arranged in each of the channels which nozzles impart a whirling motion to the fuel and means for supplying air to be mixed with the atomized liquid fuel. In Fig. 1 the rotating body 1 is attached to the rotor of the supercharger. Fuel is supplied through the tube 5 and air through the space 12. The nozzles 3 at the outer ends of the radial channels 2 impart to the mixture a whirling movement. In Fig. 2 there is a radial partition 14. Thus fuel is supplied through the radial channels 2, 6 and air is supplied through the radial channels 13. In a modification blades are provided in annular openings of the disc 7 providing a blower for air.
Patent GB-433716-A (GB)
Title: Improvements in or relating to methods of drying coated plates for photo-lithographic and like purposes and apparatus therefor
IPC: G03F7/16
Filed: 1934-02-16
Abstract: <PICT:0433716/III/1> In apparatus for drying coated plates for photo-lithographic and other purposes such as plates of zinc, aluminium and glass, coated with a solution of albumen, gelatine, fish glue, gum, &c., comprising a motor-driven rotating framework 18 supporting the plate 22 to be dried and housed within a funnel-shaped casing 24 having a hinged lid 26, provided with an aperture 28, the plates being subjected to the action of dried air supplied from a slanting conduit 30 arranged above the aperture 28, the air is dried by heating means, such as an electric heater 36, disposed within the conduit and remote from the aperture to prevent overheating of the plates.  A fan 32 is arranged behind the same heater for blowing air over the same.  A baffle 38 constituting a part of the lid may be arranged between the heater and the plates. Opening of the lid 26 is facilitated by counterweights 40 attached thereto by cords 42 passing over a pulley 44.  The air conduit may be curved with the heater at its outer end to further shield the plates from radiant heat.
Patent GB-991127-A (GB)
Title: A method of folding sheet-like articles and apparatus for use in said method
Inventor: TORKILDSEN ODD
IPC: B65H45/101
Filed: 1962-02-12
Abstract: 991,127. Folding fabrics. DET BERGENSKE DAMPSKIBSSELSKAB. Feb. 12, 1962, No. 5259/62. Heading D1S. Laundered piece-goods 17 are delivered by a conveyer 31 to a rotatable cylinder 10 having a major portion of its periphery surrounded by guide means 16 or 21 and which is unsupported at one end; are wound into cylindrical form thereon; and are manually pulled off the unsupported end, flattened and folded into a flat package. In one embodiment, Fig. 1, the supported end 11 of the drum is driven by a belt 12 from a wheel 13 engageable with or disengageable from a driven axle by a coupling 14 actuated by a foot pedal 15. The guide comprises a curved plate 16 and the rolled sheet 18 is removed manually. In an alternative embodiment, Fig. 2, the guide comprises a belt 21 passing around freely rotatable wheels 22,.., 25, the wheel 22 being driven by frictional engagement with a roller 29 driven by the belt 12. The sheet 17 is arranged so that a margin thereof projects outwardly when it is fed into the ironing machine to project beyong the unsupported end of the drum to facilitate the removal of the rolled sheet 18. The guide 16 or 21 surrounds at least 180 degrees, preferably 270 degrees, of the drum periphery.