baber/WOPTO huggingface dataset:
Patent GB-956556-A (GB)
Title: A method of preparing a polymeric material
Inventor: CERESA RAYMOND JOHN
IPC: C08F293/00
Filed: 1959-07-17
Abstract: Graft or block polymeric materials are made by forming a homogeneous solution of a polymerizable olefinic monomer and a resin having a molecular weight of less than 20,000 and which can be thermoset, and thereafter effecting a free-radical initiated copolymerization of the resin and monomer, and then curing the product. Resins specified are epoxy resins, polyesters, phenol-aldehyde resins, amine-aldehyde resins, coumarone-aldehyde resins, shellac, ester gums, rosin, copal, furfuraldehyde resins, polyethylene glycols, polypropylene glycols, epoxidized oils and polyvinyl acetals.  Monomers specified are acrylic and methacrylic acids and salts, alkyl esters, amides and nitriles thereof, vinyl acetate and caproate, vinyl and vinylidene chlorides bromides and fluorides, N-vinyl pyrrolidone, vinyl pyridines, alkyl vinyl and alkyl isopropenyl ketones, styrene, divinyl benzene and ethylene dimethacrylate.  The resin/monomer mixture may contain a co-solvent and may be polymerized in bulk, solution or suspension in the presence of an initiator e.g. benzoyl peroxide. The examples describe polymerizing a mixture of (1) shellac and methyl methacrylate and curing the product by heating; (2) phenol-formaldehyde resin and methyl methacrylate and curing the product in the presence of hexamethylene tetramine; (3) as in (1) but using wood rosin in place of shellac; (4) an epoxy resin and styrene and curing the product in the presence of hexahydrophthalic anhydride; (6) an epoxy resin and methyl methacrylate, and curing the product in the presence of an anhydride/amine system; and (7) polyethylene oxide and methyl methacrylate and curing the product with toluene diisocyanate.
Patent GB-677045-A (GB)
Title: An improved pressure reduction valve for use with water heating systems and in othersimilar circumstances
IPC: G05D16/06
Filed: 1950-10-09
Abstract: 677,045. Pressure-regulating valves. GRAHAM, J. B. Oct. 9, 1950, No. 24606/50. Class 135. A pressure - regulating valve having a valve closure member H coacting with an inlet nozzle F directed away from a spring-loaded diaphragm B which actuates the valve member in response to variations in outlet pressure has a lostmotion connection between the diaphragm and the valve member comprising a flange M<SP>1</SP> carried by the diaphragm and engaging a wider groove L in a yoke J which carries the valve member. The arrangement is such that, in the event of a failure of supply pressure, downward movement of the diaphragm in response to a fall of outlet pressure will not open the valve.
Patent GB-996359-A (GB)
Title: Disc brakes, especially for electric motors
IPC: H02K7/102
Filed: 1962-06-27
Abstract: 996,359. Disc brakes. EBERHARD BAUER ELEKTROMOTORENFABRIK G.m.b.H. June 27, 1962 [Oct. 7, 1961], No. 24621/62. Heading F2E. [Also in Division H2] A disc brake, especially for an electric motor, comprises a housing 10, a shaft 2 rotatable therein, a brake disc 7 secured thereto and a spring-loaded pressure member 6, 17, 15 for applying braking pressure to the disc. A lever 22 pivoted on the housing 10 has an operating member 33, connected to an electromagnet armature 34, engaged between the wedge surface 27 thereof and a surface on the housing 10 so that when the magnet is energized the member 33 moves to force the lever 22 in a direction to move the pressure member against the action of the spring means 13 to release the brake. As shown a fan 3 is fixed on the shaft 2 inside a ventilating casing 1 of a conventional electric motor. The disc 7 of vulcanized fibre is keyed on the shaft 2 and the pressure member which is formed by a plate 6, a bolt 17 and a spring carrier 15 is operatively connected to the fork-shaped lever 22 by the bolt 17 which abuts the plate 6, is screw-threaded in the carrier 15, passes through a bore in the lever 22 and has a nut 23 threaded thereon. A knob 37 is provided on the bolt 17 and is normally locked in position by a pin 38 engageable in holes 39. Rotation of the knob 37 screws the bolt 17 further through the carrier 15 to compensate for wear, the nut 23 being held in position by a locking plate 39 and a screw 40. The operating lever 33 carries a roller which engages the surface 27 of the lever 22 and two smaller diameter rollers arranged each side of the first roller and which engage the surface of the housing 10. The brake may be held released without the operation of the magnet by engaging a spring-loaded pawl in a slot in the operating lever 33 to hold the latter down. The arrangment is such that when the current in the magnet is restored the lever 33 moves a small distance downwards so that the spring- loaded pawl may return to its inoperative position.
Patent GB-335018-A (GB)
Title: Improvements in or relating to tea drying apparatus
IPC: F26B17/04
Filed: 1929-08-12
Abstract: 335,018. Krupp Grusonwerk Akt.- Ges. Oct. 1, 1928, [Convention date]. Endless-band conveyers, fibrous and granular material carried on; discharging.-A tea drying apparatus has an endless band 1 to collect the short tea passing from superposed continuously moving sieve or perforated bands 7 and to deliver it in a continuous manner with the dried tea from the apparatus into compartments of an ejector 5. The end roller 2 is disposed below the level of the current of heated air used for drying.
Patent GB-952507-A (GB)
Title: Process for the treatment of metal and jet for use therein
Inventor: COOK LESLIE
IPC: C21C5/32
Filed: 1961-07-07
Abstract: Metal is subjected to the action of a plurality of individual gas streams, all of which are supplied through a multiple jet having at least three separate supply passages.  The particular embodiment described consists of three concentric passages, only one of which is adapted for the supply of high pressure gas, e.g. oxygen.  The low pressure gas streams, which may be fuel, oxygen, steam or inert gas carrier, and into which any necessary refining additions such as lime or soda, or fluxes, or carburizing agents such as graphite may be dispersed, are entrained into the high pressure gas stream by injector action.  The process may be applied to metal in a converter, rotary furnace or ladle, and may be used to initially melt down a charge of scrap, high pressure oxygen being used in conjunction with low pressure fuel.
Patent GB-204869-A (GB)
Title: Improved trap device for nest boxes for poultry, applicable also for trapping other animals
IPC: A01K31/16
Filed: 1922-09-13
Abstract: 204,869. Ferguson, J. H. Sept. 13, 1922. Trap nests. - A wooden sliding door 5 adapted to cover the entrance 3 to the nest moves in vertical guides 8 provided with notches 9 to support the door at various heights, the door having rigid with it a tripping member 10, so that the bird or other animal on entering the nest moves the member 10 and lifts the door 5 to the right off the notches 9 so that the entrance is closed. When it is not desired to use the trap device with the nest, the door 5 may he raised so as to rest on the member 11. In a modification, Fig. 4, the member 10 is hinged to the door 5 so that after a small angular movement the edge of the member 10 abuts against the bottom of the door 5 and then acts as in the form shown in Fig. 2. In a further modification the trap device is stamped out of sheet metal and is fixed at each side to the nest by a hinge pin so that by withdrawing one hinge pin the trap device may be swung about the other pin for inspection purposes.
Patent GB-1479721-A (GB)
Title: Herbicidal pyridine derivatives
IPC: C07D213/61
Filed: 1973-05-24
Abstract: 1479721 Herbicidal pyridine compouhds IMPERIAL CHEMICAL INDUSTRIES Ltd 13 June 1974 [24 May 1973 29 Jan 1974] 24826/73 and 04074/74 Heading C2C Novel pyridine compounds of Formula I where X 1  and X 2  each represent a halogen atom and R is H; a salt-forming cation; an aryl radical; an acyl radical; or a C 1  to C 6  alkyl radical substituted by OH, C 1  to C 6  alkoxy, an aryl group or a C 2  to C 6  alkenyl or alkynyl group are used in herbicidal compositions. Compounds of Formula I in which R is H may be prepared by halogenating 2-fluoro-4- hydroxypyridine which itself may be prepared either by alkaline hydrolysis of 2,4-difluoropyridine with an alkali metal hydroxide or by reacting 2,4-difluoropyridine with a metal derivative of an alcohol, e.g. allyl alcohol, and then hydrolysing the resulting ether of 2-fluoro- 4-hydroxypyridine. Compounds where R is H may also be prepared by the reaction scheme where M is an alkali metal, R<SP>1</SP> is aryl, C 1 -C 6  alkyl substituted by OH, C 1 -C 6  alkoxy, aryl or C 2 -C 6  alkyl or alkenyl, and (O) is an oxidizing agent. The ether obtained in step (3) may be converted to the compound of formula in which R is H by aqueous acid hydrolysis. Compounds of Formula I where R is H may be connected to their salts by treatment with a base. Compounds of Formula I where R is acyl may be prepared from compounds of Formula I where R is H by treatment with the appropriate acyl chloride. Compounds of Formula I where R is aryl or substituted alkyl may be prepared either by the reaction scheme above by selecting the appropriate R<SP>1</SP> or by the scheme where MOR is a metal derivative of an alcohol.
Patent GB-351808-A (GB)
Title: Improvement in safety mixers
IPC: B01F15/00
Filed: 1930-08-20
Abstract: 351,808. Mixing-apparatus. MIXING EQUIPMENT CO., Inc., 1024, Garson Avenue, Rochester, New York, U.S.A. Aug. 20, 1930, No. 24887. Convention date, Aug. 28, 1929. [Class 86.] An electrically-driven mixing-apparatus for inflammable materials, or materials giving off corrosive vapours is provided with a cooling system for the motor in which air is admitted to the motor at the end remote from the agitator, and is discharged in the general direction of the agitator. The motor 27 is provided with cooling fins 103 surrounded by a shell 105, and air is blown downwards by a fan 109 mounted on the motor shaft and enclosed in a casing 111 having air inlets 113 therein; a hood 115 connected by a hose 119 with a port hole 121 may be provided for drawing in fresh air from outside the building. The air is discharged from the shell 105 at its lower end. The motor is supported by a casting 11 surrounding its lower end and fitted with a ball-and-socket connection with a clamp 3 engaging the lip of the mixing vessel 1.
Patent GB-669810-A (GB)
Title: Improvements in or relating to the production of power
IPC: F02C3/28
Filed: 1949-04-04
Abstract: 669,810. Gas turbine plant. STEINSCHLAEGER, M. June 26, 1950. [April 4, 1949] No. 24889/51. Divided out of 669,759. Class 110(iii). The discharge of the compressor 2 of a gas turbine plant passes through a first heat exchanger 4 and is then divided into two streams. One stream is further heated in a second heat exchanger 6, then passed through a turbine 7, cooled in the first heat exchanger 4, further cooled in a cooler 10 and a third heat exchanger 12 and thence passed through a second turbine 13, then cooled in a fourth heat exchanger 15 heated in the third heat exchanger 12 and returned to the compressor 2. The second stream is led to a producer 17 and the combustion chamber 22 which is fed with gaseous products from the producer through a cooling and purifying system 20. The combustion products are cooled in the second heat exchanger 6 from which they pass through a third turbine 26, are then reheated in the second heat exchanger 6 and exhausted to atmosphere through a fourth turbine 28. Steam or carbon dioxide or a mixture of both is admitted to the gas producer 17 through the pipe 18. If liquid fuels such as oils or tars or such solid fuels as pitches or powdered pitches or powdered coal are used, the gas producer may consist of a burner generating hot gases the sensible heat of which is used to crack or gasify the fuels. The coolers may be of the direct or indirect type and the precipitators may be of the electrostatic or cyclone type.
Patent GB-253769-A (GB)
Title: Improvements in means for utilising tidal energy
IPC: F03B13/26
Filed: 1925-10-07
Abstract: 253,769. Noyes, W. T. Oct. 7, 1925. Tidal energy, utilizing.-Tidal water entering a chamber compresses air therein and forces it through a non-return valve B, Fig 1. As the tide falls, air is allowed to enter the chamber and operates motors on shafts C. For both directions of flow, the water operates a wheel K', Fig. 2, driving a shaft D' and dynamos C<1>. Reference has been directed by the Comptroller to Specifications 11731/12, 125,226, 128,399, 154,188, 166,739, and 181,744.
Patent GB-772344-A (GB)
Title: Spray mixer
IPC: B01F5/02
Filed: 1955-08-31
Abstract: <PICT:0772344/IV(a)/1> A liquid resin component is fed to the inlet 6 and a water catalyst to the inlet 14 of a spray mixing device, (see Group XXIX), and the resin component is sprayed from an annular discharge passage 23.  The catalyst is sprayed at high velocity from an inner bell-shaped passage 43 by means of air under pressure supplied to the device which mixes with the catalyst before its discharge.  The aircatalyst spray forms an inner spray cone which picks up the resin component from the outer spray passage 23, and the mixture impinges against the inner wall of a cylinder 80.  The mixture foams as it runs down the wall and is collected in a receptacle.  The resin component may comprise tolylene diisocyanate to which is added castor oil and polyethylene glycol, in which case the catalyst consists of diethylethanolamine, hydrochloric acid and distilled water.
Patent GB-475830-A (GB)
Title: An improved process for the galvanic deposition of copper from aqueous solutions of copper salts
IPC: C25C1/12
Filed: 1936-09-14
Abstract: 475,830. Electrodeposition of copper. GALVANOCOR AKT.-GES. Sept. 14, 1936, No. 25021. Convention date, Sept. 13, 1935. [Class 41] In the electrodeposition of copper from aqueous copper salt solutions containing free acid, using soluble anodes of refined copper, high current densities are employed and the formation of univalent copper compounds at the anode is prevented by the presence of oxidizing substances such as chromic acid or hydrogen peroxide dissolved in the bath. The copper salts used are preferably those which form only compounds of bivalent copper. In examples the bath comprises, besides water, (1) copper sulphate, sulphuric acid and chromic acid; current density 500 amps. per sq. mm.; (2) copper perchlorate and perchloric acid; the copper perchlorate may be replaced by copper nitrate or sulpho acid copper salts ; current density 2000 to 3000 amps. per sq. mm.; (3) copper perchlorate, copper benzene disulphonate and perchloric acid; current density as in (2). Fine grain copper may be obtained by adding to the bath surface tensionreducing substances such as phenols or their homologues or lauric acid; bright copper by adding colloids such as glue, gelatine, resins, rubber or dyestuffs, alone or in addition to the phenols, &c.
Patent GB-995011-A (GB)
Title: Improvements in or relating to apparatus for recording data by magnetic means
IPC: G11B27/13
Filed: 1962-06-29
Abstract: 995, 011. Recording-apparatus. L. MOLYNEUX. Sept. 16, 1963 [June 29, 1962], No. 25034/62. Heading G1J. [Also in Divisions G4 and G5] An apparatus for recording data by electric or magnetic means comprises tape transport mechanism and at least one recording head or the like associated with a recording or indicating means so as to be adjusted thereby or therewith, means being provided for periodically energizing the head so as to record the adjustments thereof on the tape relative to a datum signal simultaneously or previously recorded on the tape. In Fig. 1 the depth of a river is recorded on a known recording drum 10 provided with a pen moving member 13 which also carries a magnetic recording loop 14; a second recording loop 15 is attached to a fixed part of the apparatus. A magnetic tape 16 is driven from a supply reel 17 to a take-up reel 18 by a clockwork motor 19, and reel 18 carries a peg 20 adapted to close a mercury switch for a short period in each rotation and thereby discharge a condenser through loops 14 and 15 in opposite polarities. The distance between the pulses thereby recorded on the tape thus corresponds to the depth of the river. On playback, Fig. 6, the capstan carries an optical or magnetic pattern 31 allowing timing pulses to be generated at a speed proportional to the speed of the tape. The pulses recorded on the tape act as start and stop pulses for a gate 36 so that the number of timing pulses passing through to a counter 35 is proportional to the depth of the river. The content of the counter can be read visually and/or punched out on paper tape in unit 37 for further analysis by a digital computer. If great accuracy is required, one track on the tape may have recorded on it pulses at a constant rate which are used, on playback, instead of the timing pulses produced from the capstan. The fixed loop 15 may be omitted if signals are pre-recorded on the tape at regular intervals of if a constant speed drive is used, when start pulses may be generated at regular intervals by the playback apparatus.
Patent GB-302413-A (GB)
Title: Improvements in airships
IPC: B64B1/00
Filed: 1927-09-22
Abstract: 302,413. Slate, T. B. Sept. 22, 1927. Propelling; acrostats.-An airship is propelled by a centrifugal blower 13 which draws in air at the front of the envelope and delivers it radially over the front surface. The engine is fed by gaseous fuel from a flexible bag in a shell 5 through a pipe 19 and exhausts through a pipe 16 which has a cock for directing the exhaust into the blower when desired. The blower 13 is placed so that the stream of air contacts with the front of the ship and is designed to give an area of reduced pressure in front of the ship and by entraining further air to build up a pressure on the tapering rear surface. The blower shaft is direct coupled to the engine which is arranged in a forward compartment 3.
Patent GB-602627-A (GB)
Title: A method of and apparatus for carrying out highly exothermic reactions with short reaction times
IPC: B01J19/26
Filed: 1945-09-27
Abstract: <PICT:0602627/III/1> Exothermic reactions of short reaction time between two liquid reagents, e.g. the sulphation of olefines, are carried out by injecting one of the reagents through a nozzle 3 into an annular chamber 4 containing a reaction mixture with an excess of the other reagent, passing the resultant mixture through a narrower annular chamber 6, and ejecting at 5 into a solution which converts the reaction product and any excess of one reagent into nonreactive compounds; a cooling medium passes through the central tube 2.  The quenching solution, which may also be used as the cooling medium, may contain aqueous caustic alkali, triethanolamine, triethylamine or cyclohexylamine.  The annular chambers may also be cooled externally.ALSO:<PICT:0602627/IV(b)/1> Olefines are sulphated by injecting either the olefine or sulphuric acid through a nozzle 3 into an annular chamber 4 containing a reaction mixture with an excess of the other reagent, passing the resultant mixture through a narrower annular chamber 6, and ejecting at 5 into a solution containing aqueous caustic alkali, triethanolamine, triethylamine, or cyclohexylamine.  A cooling medium, which may be the same as the solution used for quenching, passes through the central tube 2, and the annular chambers may also be cooled externally.
Patent GB-629170-A (GB)
Title: Air speed and mileage indicator
IPC: G01P5/16
Filed: 1945-08-30
Abstract: 629,170. Aircraft speed and mileage indicators. BENDIX AVIATION CORPORATION. Aug. 22, 1946, No. 25144. Convention date, Aug. 30, 1945. [Classes 106 (ii) and 106 (iii)] [Also in Group XXXVII] A device for indicating speed and mileage of an aircraft comprises centrifugal means, a member responsive to the difference between static and dynamic or impact air pressure, and means actuated jointly by the pressure responsive member and the centrifugal means to control the speed of rotation of said centrifugal means. A bellows 11, Fig. 1, of an air speed indicator 10 causes through a rack 16, pinion 18, shaft 17 and a pinion 24 up and down movement of a rack 25 connected at its foot to one end of a pivoted lever 26 which at its other end has a contact 28 which co-operates with a contact 36 at one end of a pivoted lever 35, the other end of which is connected by a pin 34 to a slidable flange 33 of a centrifugal ball-governor mechanism 32 driven by an electric motor 30. The arrangement is such that when the rack 25 is moved down by expansion of the bellows 11 the contacts 28, 36 are closed and the motor 30 starts to rotate the governor 32. As soon as the motor speed exceeds the indicated air-speed the contact 36 is withdrawn from the contact 28 by movement of the flange 33 whereupon the motor circuit is interrupted. A speedometer attached to the shaft 31 of the motor 30 will thus indicate average air speed and air mileage is indicated by a suitable device counting the revolutions of the shaft 31. If, as in the embodiment shown and described, the air speed indicator 10 is not density-compensated, a density-compensating bellows 41 is connected through levers 43, 44 to the lever 35. In another embodiment, not shown, an air turbine the supply of which is jointly controlled by the pressure-responsive member and the centrifugal governor drives the centrifugal governor.
Patent GB-171230-A (GB)
Title: An improved expanding grid or support suitable for use within cooking vessels
IPC: A47J36/34
Filed: 1920-09-01
Abstract: 171,230. Handley, S. A. Sept. 1, 1920. Frames and the like for holding a n d supporting viands while cooking.-A grid for supporting viands in cooking-vessels comprises a central perforated frame a, having extensions a<2> to which are pivoted extension arms c, each having two legs d. The arms c house in the spaces between adjacent extensions a<2>. Studs c<3> on the arms c pass through the extensions a<2> and are loosely riveted therein, thus forming the pivots. In a modificaticn, the central frame consists of two crossed sheet-metal strips, riveted together, to which the arms, also of sheet metal, are pivoted, the extiemities of the arms and frame members being turned downward to form feet. The members are each stiffened by a longitudinal corrugation.
Patent GB-150709-A (GB)
Title: The manufacture of a colour of the anthraquinone series
IPC: C09B1/00
Filed: 1920-09-01
Abstract: The vat dye described in Specification 148,339 is obtained by reaction of hydrazine on anthraquinone - 1 : 2 - isoxazole; the parent isoxazole is prepared, as described in Specification 147,001, by treating 1 - nitro - 2 - methylanthraquinone with fuming sulphuric acid.