baber/WOPTO huggingface dataset:
Patent GB-878461-A (GB)
Title: Quinoline derivatives and the manufacture thereof
Inventor: WALLS LESLIE PERCY
IPC: C07D215/40
Filed: 1958-03-17
Abstract: The invention comprises 8-aminoquinoline derivatives of the formula <FORM:0878461/IV (b)/1> and acid addition salts thereof, wherein R1 and R2 are hydroxy or C1-C4 alkoxy groups or R2 may also be hydrogen, R3 is hydrogen or a C2-C4 alkyl group bearing a hydroxy substituent on at least one carbon atom other than that adjacent to the piperazine ring and X is a straight or branched aliphatic hydrocarbon chain of 3-7 carbon atoms, provided that, when R1 is a methoxy group X shall not be an unbranched hexamethylene group.  The compounds are made by linking successive portions of the molecule by condensation reactions of compounds containing reactive substituents such as halogen atoms or alkyl or aryl sulphonyloxy groups, for example; (a) an 8-amino quinoline is treated with a reactive N1-R3-piperazinoalkyl compound; (b) N1-R3-piperazine is treated with an 8-quinolinylaminoalkyl reagent or (c) an 8-piperazinoalkylamino quinoline is treated with a hydroxyalkyl reagent, for example an alkylene oxide having 3 or 4 atoms in the ring.  In processes (a) and (b) the N1-piperazinyl substituent may suitably be an alkoxycarbonyl group which is finally removed from the reaction product by hydrolysis.  The compounds may also be prepared by reduction e.g. with lithium aluminium hydride, of a compound of the formula <FORM:0878461/IV (b)/2> wherein R4 has the same values as R3 and may also be an alkoxycarbonylalkyl group and Y is a radical -CO.Z-, -Z.CO- or -CO.W.CO-, wherein Z is an aliphatic hydrocarbon chain of 2 to 6 carbon atoms and W is an aliphatic hydrocarbon chain of 1 to 5 carbon atoms. Piperazino-quinoline compounds of the formula II used as intermediate compounds in the examples are prepared, when Y is a radical -CO.Z-, by treating an 8-amino quinoline with a haloacyl halide and condensing the resulting 8-haloalkanoyl-amino-quinoline e.g. 6-methoxy-8-chloropropionamidoquinoline, or, when Y is a radical -CO.W.CO-, by the reaction of the appropriate 8-aminoquinoline e.g. 6-methoxy-8-aminoquinoline, with a piperazine and succinic anhydride in the presence of N:N1-dicyclohexylcarbodiimide. Disubstituted piperazines used as starting materials, i.e. N-g -chloropropyl-N1-hydroxyethyl-, N-g -chlorobutyl-N1-carbethoxy- and N-b :g -dihydroxypropyl-N1-carbethoxy-piperazine are made by treating the appropriate monosubstituted piperazine with trimethylene chloro-bromide, 1-chlorobutan-3-ol and glycidol respectively. Bis[3 - (6 - methoxy-8-quinolylamino)-3-oxopropyl] piperazine is obtained by the action of 6-methoxy-8-(3-chloropropionamido) quinoline on piperazine. Specification 834,300 is referred to.
Patent GB-1137479-A (GB)
Title: Foreign body guards for aircraft
Inventor: ALLCOCK ALASTAIR WILLIAM RODNE
IPC: B64D45/00
Filed: 1966-02-28
Abstract: 1,137,479. Debris guards for aircraft windscreens. MINISTER OF TECHNOLOGY. 14 Feb., 1967 [28 Feb., 1966], No. 8650/66. Heading B7W. [Also in Division F1] A debris guard for protecting windscreens, which in the embodiment protects the air intake of an aircraft gas turbine engine, comprises a plurality of vanes of low loss aerofoil section, spaced apart so as to obstruct the passage of any foreign body likely to be met in normal flight having such momentum as might lead to serious damage to the aircraft, the vanes having separate nose portions intended to be deformed by impact with such foreign bodies so as to further obstruct the passage of said bodies. The debris guard shown comprises inner and outer ring members 1 and 2 between which extend a series of radially disposed vanes 3 of aerofoil section, each vane comprising a solid trailing portion 5 and a hollow leading portion 6. The leading portion 6 would be deformed as indicated in broken lines if struck by a foreign body during flight. Hot gases may be passed through the hollow leading portions of the vanes to prevent icing. The vanes may alternatively extend in parallel disposition, and might be adapted to be turned so as not to obscure the view during landing or take-off.
Patent GB-1176372-A (GB)
Title: Device for Opening Photographic Film Cartridges
Inventor: LAWRENCE RAYMOND EDWARD
IPC: G03D13/00
Filed: 1967-02-23
Abstract: 1,176,372. Opening containers. EASTMAN KODAK CO. 23 Feb., 1967 [23 Feb., 1966], No. 8675/67. Heading B8D. The end of a plastics cartridge for a roll of film is cut out by means of a blade 24 mounted on a head 14 rotatable by means of a crank handle 16, 17, the lower part of the blade 24 being inclined towards its axis of rotation so that the cut-out portion slopes inwards, Figs. 4 and 5 (not shown), at its periphery and is prevented thereby from falling inside the cartridge. The head 14 is rotatably mounted below the hinged lid 8 of a cast iron frame 1 which has a recess 2 for the cartridge and is held closed by a releasable latch 27 during the cutting opera-' tion. The lid 8 is spring-urged to an open position. The blade may be power driven and the whole device may be inverted to allow the cutout section to fall out when the lid is opened.
Patent GB-456956-A (GB)
Title: Improvements in or relating to travelling-boxes or trunks
IPC: A45C13/40
Filed: 1936-03-24
Abstract: 456,956. Stays. ZEJDA, K., Prerov, Czecho Slovakia. March 24, 1936, No. 8723. [Class 65 (i)] [See also Group XVII] The lid-staying means for a trunk comprises two pivotally connected members 21, around the pivot of which a helical spring 24 is stretched.
Patent GB-585405-A (GB)
Title: Improvements in or relating to ampules
IPC: A61J1/06
Filed: 1943-11-05
Abstract: 585,405. Pistons. FIELDS, M. R. Nov. 5, 1943, No. 8731/44. Divided out of 585,392, [Group VI] [Class 122 (i)] [Also in Group VI] A piston plunger closure 20 for an ampoule [see Group VI] comprises a diaphragm 9 backed by discs 21, 22 including an incompressible disc interposed between a compressible disc and the diaphragm. The diaphragm may be of pure rubber calendered or glazed or treated with wax or plastic material. The incompressible discs 21 may be made of fibre serrated at 24, and the compressible discs 22 may be formed from sheet rubber or rubber-like material and have central holes 23.
Patent GB-984501-A (GB)
Title: Method of, and apparatus for, recovering heat from metallurgical converter waste gases
IPC: C21C5/38
Filed: 1961-03-10
Abstract: 984,501. Utilizing waste gases; regenerative steam accumulators; heating feedwater. L. & C. STEINMULLER G.m.b.H. March 10, 1961 [March 12, 1960], No. 8818/61. Headings F4A and F4B. A method of recovering heat from waste gases from a metallurgical converter consist of adding air to the gases and burning and cooling them in a waste heat boiler, thus generating steam which is admitted to a pressure storage vessel, wherein the boiler feed water is preheated. Steam is only admitted to the storage vessel when it is being produced in a quantity above a particular level, during the blows, and it is withdrawn from the storage vessel between blows to help operate the boiler circulation pump and the gas exhaust fan. The gases, after being cooled in the boiler are cooled by water injection, passed through a dust separator, and then cooled by a second water injection before being exhausted. The pump and fan are preferably combined to form a single unit with a common drive, which is operated either by a steam machine or an electric motor.
Patent GB-219367-A (GB)
Title: Improvements in and relating to laminated springs
IPC: F16F1/24
Filed: 1923-03-28
Abstract: 219,367. Frood, H., and Ferodo, Ltd. March 28, 1923. Laminar springs.-In a laminated spring, the individual leaves are encased in a covering of non-metallic material with or without a metal reinforcement. The covering may be formed by folding a sheet of material to bring its opposite edges into contact and a joint may be made between the abutting edges; or the covering may be made tubular without a joint by moulding a suitable composition, or by weaving or knitting spun fibrous material of vegetable, animal, or mineral origin, or a mixture of these. A suitable material is a combination of fibrous material with an organic binder, such as infusible phenol formaldehyde products, the binder being applied to a woven or knitted fabric, to the yarns of which the fabric is formed, or to unspun fibres from which the covering is moulded. Metal wires or filaments may be incorporated in the material to reinforce it. The coverings may be secured to the leaves by vulcanizing or otherwise and their ends may be sealed. The material may be chosen to increase the friction between the leaves, or it may be of a lubricating nature, or lubricant may be introduced between the coverings or into them. Thus a fabric covering may have its inner surface unbonded or in the grey state so as to act as a carrier for grease, oil, graphite, or an anti-rust or other composition, the outside of the covering being of a character to resist water and wear. The master leaf may be uncovered or partly covered to allow of connection to shackles, dumb-wires, &c. Specification 106,568 is referred to.
Patent GB-1089905-A (GB)
Title: A.c. control circuit
Inventor: BERTIOLI MICHAEL MURRAY
IPC: G05D23/24
Filed: 1964-03-03
Abstract: 1,089,905. Automatic temperature control of furnaces. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb. 25, 1965 [March 3, 1964], No. 8875/64. Heading G3R. A system for automatically controlling the temperature of an electrically heated furnace 12 includes a pulse generator 11 in the form of a relaxation oscillator whose output frequency is determined by an element responsive to the furnace temperature, a bi-stable circuit 13 being controlled by the oscillator 11 and the A. C. supply 14 to subsequently control a pair of reverse parallel connected semi-conductor controlled rectifiers 15 in series with the heating elements of the furnace 12. In operation, when the temperature of the furnace 12 is below a predetermined settable value, the output frequency of the oscillator 11 is greater than that of the A. C. supply 14. Thus during each cycle of the supply 14 the oscillator 11 will drive the bi-stable circuit 13 to its first state so that, at the commencement of the next cycle of the supply 14, the bi-stable circuit 13 will be driven to its second state thereby providing a signal to fire the rectifiers 15 so permitting current to flow in the furnace heating elements. However, when the predetermined temperature of the furnace is exceeded, the output frequency of the oscillator 11 will fall below the frequency of the supply 14 and as a result there will be some cycles of the supply 14 when the bi-stable circuit 13 will not be driven to its first state so that at the commencement of the next cycle of the supply the rectifiers 15 will not be fired and hence no current will flow in the furnace heater elements during these cycles. The oscillator 11 and the bi-stable circuit 13 comprise transistors and the controlled rectifiers are further described and claimed in Specification 1,086,313. The temperature sensitive element in the oscillator 11 may be a temperature dependent resistor or a light responsive resistor governed by a galvanometer arm which interrupts the light falling thereon. In a further embodiment a phase advance network, a square wave generator and a differentiating circuit are included between the A. C. supply and the bi-stable circuit 13 whilst a monostable circuit is included between the bistable circuit 13 and the controlled rectifiers 15. The system may be modified so that the rectifiers are triggered at the beginning of half cycles of the supply instead of full cycles thereof.
Patent GB-744527-A (GB)
Title: An improved device for applying liquid to a travelling filament
Inventor: STOKES GEORGE EDWARD
IPC: D04B35/22
Filed: 1952-04-07
Abstract: 744,527. Knitting; coating yarns. HOSIERY & ALLIED TRADES RESEARCH ASSOCIATION. July 7, 1953 [April 7, 1952], No. 8879/52. Classes 74 (2) and 140. A yarn treating device, particularly for lubricating yarns in circular knitting-machines, comprises a tank 42 supplied with lubricant from a tank 1 in which the lubricant is maintained at a constant level. Each yarn passes over a grooved disc 9 which dips into the lubricant in the tank 42 and which is driven by reduction gearing 20 and manually adjustable variablespeed gearing 47, 48 from a grooved disc 21 which is driven by frictional engagement with the yarn. One disc 21 is used for each yarn and is mounted on a common axle through the intermediary of a free wheel 25. A yarn passes under a disc 21, through a guide 13 carried by a pivoted arm 43, and thence over a disc 9 and through an adjustable guide 12. Each arm 43 is operable, through a Bowden cable 45, by movement of the appropriate yarn feeder into and out of action. When a yarn feeder is taken out of operation the arm 43 is raised to engage a brake shoe 33 with the appropriate disc 21 to stop it, and the yarn is raised clear of its disc 9. A disc 9 may be provided for each yarn or a roller may be used having a groove for each yarn.
Patent GB-492897-A (GB)
Title: Improvements in or relating to opaque containers and specific gravity indicators foruse therewith
IPC: G01N9/16
Filed: 1937-03-25
Abstract: 492,897. Batteries. OLDHAM & SON, Ltd., and MAIR, T. G. March 25, 1937, No. 8895. [Class 53] An accumulator container is provided with a removable window 4 secured to the exterior of the container by a resilient member 5 which engages a projecting boss 2. The window is separated from the boss 2 by a ring 3 which may be made in one piece with the window. A specific gravity indicating device such as described in Specifications 417,237, 417,238, and 442,312, [all in Group XX], may be carried by the window or mounted on a disc held between the boss 2 and ring 3. As shown in Fig. 1, the specific gravity indicator comprises an arm 6 pivoted at 7 to the window and provided at its lower end 11 with a chamber containing air. Indicating discs 8, 9, 10 are cemented to the window or the latter may be provided with a scale of specific gravities.
Patent GB-546324-A (GB)
Title: Improvements in power transmission systems
IPC: B23Q5/26
Filed: 1941-07-17
Abstract: 546,324. Hydraulic machines. VICKERS, Inc., and HARRINGTON, F. T. July 17, 1941, No. 9038. [Class 69 (ii)] In a hydraulic power system for operating shaping, planing or broaching machines so as to provide a quick return for the tool, of the kind in which the tool is operated by a differentialarea cylinder-and-piston motor 10, 12 supplied with oil from a pump 26, a multi-position directional control valve 24 is provided to control the supply of oil, and by means of a lever 80 the valve can be set to an inoperative position, or to positions in which (1) a restricted supply of oil is directed to the pipe 16 in order to move the piston to left for the operative stroke, (2) an unrestricted supply is directed to the pipe 18 and left hand end of the cylinder in order to produce a quick return, which is enhanced by the connection of the exhaust from the cylinder by the pipe 16 being connected through the valve to the pipe 18. The valve 24 is formed with five lands 66, 68, 70, 72 and 74 and with a bore 64 which connects the spaces between the lands 68, 70 and 72, 74. In the inoperative position of the valve shown the oil discharged by the pump 26 passes via pipe 34 through the passage 64 and returns via pipes 58, 50 to tank 32. On movement of the lever 80 to the right to a position in which the left of these grooves in the valve spindle is held by a spring catch 82, the pump outlet passes via a pipe 38, a controlled throttle device 46, pipe 42 and space between the lands 70, 72 to pipe 16 and the right hand end of the cylinder. The return is via pipes 18, 61 and a back-pressure valve 62 to the tank 32. Associated with the throttle 46 is a balanced piston valve 52 which regulates the flow through a byepass port 48 and so maintains a predetermined pressure drop across the throttle 46. A pilot relief valve 54 limits the pressure in the conduits 38, 42. When the lever 80 is moved to the left, the oil flows from the pipe 34 through the valve 24 to the pipe 18 and the left hand end of the cylinder, and the outlet pipe also connects through the valve to the pipe 18 and so helps to speed up the return. Specification 516,397 is referred to
Patent GB-472652-A (GB)
Title: Process for the manufacture of acid wool dyestuffs of the anthraquinone series
IPC: C09B1/26
Filed: 1936-03-26
Abstract: Dyes are made by reacting salts of sulphurous acid, particularly sodium sulphite, with halogen alkylaminoanthraquinones wherein the alkyl group has more than one carbon atom.  The products are alkylaminoanthraquinones containing an SO3H group attached to the alkyl, and are used as acid wool dyestuffs, or, if they contain easily replaceable substituents such as halogen atoms or amino groups, as intermediates.  The reaction is preferably carried out in an aqueous medium at an elevated temperature of, for instance, 100--130 DEG  C. and under raised pressure.  Organic solvents such as alcohol may be added.  The starting materials are prepared by reacting aminoanthraquinones with compounds containing an ethylene oxide group and a halogen atom or from hydroxyalkylaminoanthraquinones by replacement of the hydrory group. In example, (1) 1-b -chloro-ethylaminoanthraquinone is reacted with sodium sulphite; the product dyes wool red shades and can be converted to other dyestuffs by introducing a bromine atom and replacing the latter by an amino group; (2) 1-b -hydroxy-g -chloropropylamino - 4 - hexahydroanilidoanthraquinone or the corresponding 4-anilido compound is heated with sodium sulphite (blue or greenish-blue shades respectively).  1 - b  - Hydroxy - g  - chloropropylamino - 4 - anilidoanthraquinone and the corresponding 4-hexahydroanilido compound are obtained by reacting epicplorhydrin with 1-amino-4-anilidoanthraquinone and 1-amino-4-hexahydroanilidoanthraquinone respectively.  1 - b  - Chloroethylaminoanthraquinone is prepared from 1 - b  - hydroxyethylaminoanthraquinone by reaction with phosphorus pentachloride.  The Specification as open to inspection under Sect. 91, describes also the bromination of 1 - b  - sulphoethylaminoanthraquinone to the 4-brom compound and its acetylation with acetic anhydride to give 1-(b -sulphoethylacetyl) - amino - 4 - bromanthraquinone. The latter, when heated with caustic soda in methyl alcohol, gives a 1.9-anthrapyridone, the bromine of which is exchanged by reaction with hexahydroaniline.  1 - (b  - sulphoethylamino) - 4 - bromanthraquinone is also reacted with p-aminoacetanilide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1016454-A (GB)
Title: Fluid pressure servo mechanism
Inventor: WOLPIN MARTIN PHILIP
IPC: G05D16/10
Filed: 1963-03-07
Abstract: 1,016,454. Fluid pressure servomotor systems. BELL AEROSPACE CORPORATION. March 7, 1963, No. 9073/63. Heading G3P. A servo-mechanism comprises piston 50 subjected to fluid pressure under the control of pilot valves 14, 16 operated by flappers 34, 36 through torque rotors 56, 58. The piston rod 52 is connected to a flight control surface and trimming is provided by an electric rotor 114 which rotates a threaded shaft 112 to rotate a lever 102 through a nut 110, the lever 102 causing displacement of the flappers through springs 96, 98. The screw thread and nut transmission holds the lever 102 in position in the event of failure of the electric supply. Two electric motors having varying speeds of action may be provided. A tapered portion 68 of the piston rod acts through levers 64, 70, 74 and springs 80, 82 to provide feedback.
Patent GB-254034-A (GB)
Title: Improvements in or relating to saddle girths
IPC: B68C1/14
Filed: 1925-04-06
Abstract: 254,034. Clay, J. S. April 6, 1925. Girths.-A saddle girth 1 is provided with a sleeve or sheath 2 of smooth rubber. The sleeve may be loose on the belt, stitched thereto or retained in place by snap fasteners.
Patent GB-1192361-A (GB)
Title: Improvements in Lawnmowers
Inventor: MARTIN DEREK JOHN
IPC: A01D69/00
Filed: 1966-03-02
Abstract: 1,192,361. Epicyclic gearing. QUALCAST Ltd. 1 June, 1967 [2 March, 1966], No. 9162/66. Heading F2Q. In a drive arrangement in a lawn mowing machine, between the engine (e.g. petrol) and the cutting cylinder and/or land wheel or roller, or between the latter and the cutting cylinder, balls or cylindrical or tapered rollers rotatably mounted in a rotatable carrier frictionally engage two rotatable side wheels, one of the side wheels being the input element and either the carrier or the other side wheel being the output element, said other side wheel or the carrier respectively being frictionally brakable to effect either a 2/1 or a 1/1 (Reverse) drive transmission through the arrangement. As shown, balls 11 mounted in a carrier 12 keyed on a driven shaft 16 engage the side faces of an engine-driven sprocket 10 and a brake drum 14. The shaft 16 carries and drives a land roller 17. Drive transmission friction loading is transmitted through angular contact bearings 21, 22 clamped between a shoulder 20 of the shaft 16 and a spring washer adjustably loaded by a nut 19 on said shaft. A 2/1 reduction drive is obtained when a band 15 is applied to the drum 14. The band 15 may be arranged to be self-tightening on application, and may be of steel or beryllium copper.
Patent GB-199824-A (GB)
Title: Improvements in and connected with the mounting of electrodes or electric discharge points in the hulls of ships and submerged structures
IPC: B63B59/04
Filed: 1922-03-30
Abstract: 199,824. James Antifouling Appliances, Ltd., Wilkie, J. B., and Neville, H. March 30, 1922. Incrustation, preventing. - In means for preventing the incrustation of ships' hulls in which a high-tension electric discharge is emitted from electrodes mounted on the hull, the electrodes are mounted in casings containing valves which close the apertures in the hull when the electrodes are withdrawn for inspection or other purpose. The casing d, Fig. 1, provided with a cover e is secured to the hull by the screws d<3> and carries the electrode rod b enclosed in the insulator g embraced by the sleeve h passing through a stuffing-box e formed in the cover and screwed at f to the casing. A slide valve o seated in the casing and operated by the screw h is provided with a tongue t which engages with a similar hook-member u on the cover and prevents its removal whilst the valve is withdrawn. The valve, when the sleeve h has been unscrewed from the cover and withdrawn until the shoulder h<3> engages with the projection e<3> on the cover, is then free to be projected by the screw gear and is wedged against the cover by the coaction of inclined surfaces. In a modification, the driving element of the screw gear is a square nut 10 loose on the screw, so that the mechanism ceases to be operative when the lid e is open as the hook u is disengaged from the nut 10. In another arrangement, the valve takes the form of a revoluble plug-cock 1, Figs. 4 and 5, having orifices 4, 5, the former approximating in size to the exterior dimension of the sleeve h, and the latter considerably larger so as to permit of the cock being closed when the sleeve h has been unscrewed from the hull casing. As a safety device, the barrel 7 of the cock is provided with a recess 8 which only comes into alinement with a nose 6 on the hinged cover e when the cock has been turned to the off position.