baber/WOPTO huggingface dataset:
Patent GB-1129380-A (GB)
Title: Acrylonitrile copolymers containing sulphonic acid groups
Inventor: SZITA JENOE
IPC: C08F220/46
Filed: 1967-07-10
Abstract: 1,129,380. Acrylonitrile copolymers. FARBENFABRIKEN BAYER A.G. 10 July, 1967 [28 July, 1966], No. 31615/67. Heading C3P. [Also in Division D1] A copolymer comprises at least 50% by weight of acrylonitrile and 0À1 to 10% by weight of a compound of formula wherein R represents a hydrogen atom or a methyl group, A represents an alkylene radical with 3 to 5 carbon atoms which may be substituted with one or more alkyl radicals, the benzene ring may contain further substituents without active hydrogen atoms and X represents hydrogen, ammonium or an alkali metal or organic ammonium cation, the balance, if any, being one or more additional comonomers. Specified sulphonic acid compounds are 3-(pisopropenylphenoxy) - 1 - propane sulphonic acid, 4 - (p - isopropenylphenoxy) - 1 - butane sulphonic acid and 3-(o- or p-vinylphenoxy)-1- propane sulphonic acid. Suitable additional comonomers include methyl acrylate or methacrylate, vinyl acetate and vinylidene chloride. In Example 1, acrylonitrile, methyl acrylate and sodium 3-(p-isopropenylphenoxy)-1-propane sulphonate are copolymerized in an aqueous medium at pH 3À5 using potassium persulphate and sodium pyrosulphite as catalyst. No methyl acrylate is present in the copolymer produced similarly in Example 2. In Example 3 acrylonitrile, methyl acrylate and lithium 3-(pisopropenylphenoxy)-1-propane sulphonate are copolymerized in dimethyl formamide in the presence of mono-tert.-butyl permaleate, ptoluene sulphinic acid, dimethyl phthalate and H 2 SO 4  and in Example 4 acrylonitrile, vinylidene chloride and lithium 4-(p-isopropenylphenoxy)-1-butane sulphonate are copolymerized in dimethyl formamide containing the said permaleate, benzene sulphinic acid amide and H 2 SO 4 . Fibres and films prepared from the copolymers are dyed.
Patent GB-1119256-A (GB)
Title: Production of alkali metal salts of phenylglycine
Inventor: TOLKSDORF ERICH
Filed: 1966-07-14
Abstract: Alkali metal salts of PhNHCH2CO2H are prepared by hydrolysing PhNHCH2CN(1 mole) with aq. caustic alkali solution in presence of PhNH2(0.05-0.6 mole).
Patent GB-660769-A (GB)
Title: Improvements relating to the grinding of granulated slag or similar materials, with a view to obtaining a hydraulic binder
IPC: B02C23/02
Filed: 1949-12-12
Abstract: 660,769. Automatic grinding systems. TRIEF. L.. and TRIEF, M. Dec. 12, 1949 [Dec. 15; 1948], No. 31807/49. Class 59 [Also in Groups XXX and XXXV] To obtain even fineness of grinding for, e.g. granulated slag or like heterogeneous material, the feed to the grinder is dependent in part on the density of the material, and in part on its estimated hardness (see Group XXXV). For wet grinding the water added may be controlled by the load on the grinder. Arrangements are made to cool the mill. The discharge of hopper 1 on to a conveyer 8 is controlled by a movable shutter 2 operated by a servomotor 4, Fig. 1. The conveyer is pivoted at one end on a knife-edge 12, and is attached at the other end to a weigh-beam 13 co-operating with contacts 15, 16 controlling the shutter-servomotor. A slot 18 in the discharge from the hopper, Fig. 2 is shaped according to the estimated variation of hardness with density of the material, and discharges into a shoot 19, Fig. 1, alongside the conveyer belt which receives the discharge from slot 17. The two portions are fed together to the grinder to provide a quantity that varies inversely with density and hardness.
Patent GB-397451-A (GB)
Title: Improvements in devices for delaying the arming of fuse mechanisms of projectiles
IPC: F42C15/22
Filed: 1931-11-17
Abstract: 397,451. Clockwork escapements. SCHNEIDER ET CIE, 42, Rue d'Anjou, Paris. Nov. 17, 1931, No. 31868. Convention date, June 30. Void [Published under Sect. 91 of the Acts]. [Class 139.] The escapement of clockwork fuzes driven, for example, by a spring or by centrifugal force, is made up of one or more pairs of interlocking members which rotate step by step always in the same direction, one member rotating while the other is at rest. As shown in Fig. 1, the two members A, B are in one plane and are interlocked by teeth c<1>, d<1> and steps e<1> .. e<4> and f<1> .. f<4>. These members start rotating when released by a bolt V. Two pairs of such members may be interlocked for example as shown in Fig. 25. In a modification the members A, B, shown separately in Figs. 7 and 8, are cylindrical, and their interlocked parts are in a succession of different planes. In a third modification, Fig. 17, the member A has a circle of teeth E on one side and a double circle of teeth C, C<1> on the other side ; and the member B comprises two discs with a circle of teeth F on one disc and a double circle of teeth D, D<1> on the other disc, these two sets of teeth being directed towards each other, and the member A moving between them.
Patent GB-1043815-A (GB)
Title: Process and apparatus for the manufacture of hydrated lime
Inventor: GRUENBERG LEO
IPC: C04B2/08
Filed: 1964-08-05
Abstract: <PICT:1043815/C1/1> Hydrated lime is made in a continuous process by applying water to particulate burnt lime, passing the resulting mixture across a plurality of drying tables, passing a gaseous drying medium through each drying table in countercurrent to the mixture, and collecting the hydrated lime so obtained.  Preferably, from 0.6 to 0.7 kilogram of water, which may be applied in the form of a spray, is added per kilogram of burnt lime.  The gaseous drying medium, which may be air-heated by the heat evolved in the reaction of the water and burnt lime is preferably made to pass through an inclined porous top of each of the tables.  The slaking process may take place in apparatus, Fig. 1, in which burnt lime is raised by elevator 1, discharged through conduit 1a into hopper 2, and introduced by feeder 3 into screw conveyer mixer 4.  Water from supply tank 5 is raised by pump 6 through pipe 6a to spraying device 12 situated in spray tower 13, and falls as a spray through heat exchanger 7 and delivery portion 7a upon the burnt lime passing through the mixer in which the lime and water are mixed. Steam resulting from the hydration of the lime rises from the mixer into a second heat exchanger 14 which contains coiled pipe 8.  Air, introduced by a blower through entrance 15, passes through the pipe and conduit 9 and into hydrating device 10 which contains a series of porous tables 19 arranged in a vertical row in spaced staggered relationship so that each table extends over part only of the next table.  Preferably, the porous tables are slabs of highly porous ceramic material, for example fire-brick. The water-lime mixture passes from the mixer to the hydrating device, through which it descends, passing by gravity successively across the tables through which the heated air is passed in countercurrent.  Hydrated lime passes via exit 16 to separator 11, product of a desired size range being obtained via exit 17 and particles outside this size range being expelled via exit 18.
Patent GB-1337699-A (GB)
Title: Capacitive ignition circuit
IPC: F02P1/08
Filed: 1972-07-07
Abstract: 1337699 Ignition systems FABRICA ESPANOLA MAGNETOS S A 7 July 1972 [9 July 1971] 31990/72 Heading F1B [Also in Division H3]  A condenser discharge ignition system comprises an auxiliary winding 9 and a diode 6 connected in parallel with the primary winding 8 and the triggering device 5 whereby the rise time of the spark gap device 11 is determined by the relative impedances of the primary winding and the condenser 3 while the arc duration is determined in a first half cycle of the capacitive discharge cycle by the relative impedances of the primary winding and the condenser and in a second half-cycle of the capacitive discharge cycle by the relative impedances of the auxiliary winding and the condenser. In a modification a further diode is connected in parallel with the auxiliary winding.
Patent GB-902968-A (GB)
Title: Improvements in high voltage electric power cables and other oil-insulated apparatus
IPC: H01B13/30
Filed: 1959-09-21
Abstract: Electrical apparatus such as cables comprising a copper conductor surrounded with solid insulation impregnated with a hydrocarbon oil, e.g. a mineral oil which may contain polyisobutylene, has dispersed in the solid insulation an oilinsoluble organic chelating agent capable of forming a co-ordination compound with divalent copper, the oil being substantially completely free from both oxidation inhibitors and peroxide decomposers.  A bidentate or quadridentate agent capable of forming a quadridentate co-ordination compound with divalent copper may be used, examples being given, and a suitable amount by weight may be from 0,01 to 0,1% of the solid insulation. Particularly suitable agents include aldimines and perphyrins such as phthalocyanine.  Paper insulated conductors may include layers containing carbon black for stress grading, e.g. the inner and outer layers, such layers also containing the chelating agent.
Patent GB-1191274-A (GB)
Title: Improvements relating to Shifting Registers
Inventor: BILLIN JAMES JOHN
IPC: B65G47/50
Filed: 1966-07-16
Abstract: 1,191,274. Magnetic storage arrangements. ELECTRIC & MUSICAL INDUSTRIES Ltd. 17 July, 1967 [16 July, 1966], No. 32057/66. Heading H3B. [Also in Division G4] A shifting register arrangement comprises a plurality of multi-aperture storage cores forming a plurality of primary registers and a secondary register, the cores of each primary register being linked by windings to cores of the secondary register and the arrangement being such that data is shifted from a first core of a primary register to a core of the secondary register and back to a second core of the primary register, each primary register transferring its data to and from the secondary register in turn so that a single secondary register is used with the plurality of primary registers. In one arrangement, Fig. 1, storage cores A1, A2 B1, B2; C1, C2; D1, D2 form parts of four primary registers, each core being linked by a winding such as AE1, AE2 to a respective input aperture in a core E1, E2 of a secondary register, and each outlet aperture of the secondary register cores being linked by a winding such as EA2, EA3 to a respective input aperture of the next core in the primary registers. The cores of a register are cleared by a pulse in a " BLOCK A " to " BLOCK E " winding, respectively, and are set by a data pulse in a winding IA1-ID1. The outlet aperture of a set core, e.g. A1 in a primary register is immediately primed by a continuous priming current in a winding " PRIME ABCD", and when a primary register core is next cleared it sets a core E1-E2 in the secondary register previously cleared by a pulse in the " BLOCK E " winding. The outlet aperture of a set secondary register core linked with the next core of the same primary register, e.g. A2, is then primed by a pulse in an individual prime winding " PRIME EA " to " PRIME ED", and when the secondary register is next cleared a pulse is induced in the linking winding which sets this primary register core. In the same manner data is shifted by one core stage, in turn, for each of the primary registers. In a second arrangement, Fig. 2, each secondary register core has but one input and one output aperture and each primary register not intended to be operative at a given time is disabled by a bias current passed through a bias winding " BIAS A " to " BIAS B." In this arrangement the secondary register cores are continuously primed.
Patent GB-886565-A (GB)
Title: Fluid pressure control device
IPC: F15B9/08
Filed: 1959-09-21
Abstract: 886,565. Fluid-pressure servomotor-control systems. MARTONAIR N.V. Sept. 21, 1959 [Sept. 22, 1958], No. 32071/59. Class 135. A double-acting piston 31 connected to a valve, not shown, or other member is controlled by apparatus consisting of a metal bellows 2, the interior of which is connected to a variable control pressure, loaded by an adjustable spring 6 and to which bellows is attached a spring blade 9 bent to form a pivot 10 and fixed to a bracket 11 from which depends a rod 12. Two valves 13, 14, each with a baffle 15, are fed from a common supply, the outlets of which are connected to opposite sides of the piston 31; the rod 21 of the latter is joined directly or by levers, not shown, to a hinged shaft 22, movement of which turns a shaft 23 carrying a crank 25 into a bent part 26 of which the rod 12 is forced by a spring 27. Displacement of the piston-rod 21 causes the rod 12 to pivot about the pivot 10 whilst displacement of the bellows 2 results in the rod 12 pivoting about a point 28 in the part 26. The bracket 11 incorporates two abutments 29 pressing against the baffles 15 so that upon displacement of the bellows the rod 12, and hence the bracket 11, pivot about the point 28 and both baffles 15 are moved in opposite directions relative to their outlet nozzles and away from the neutral position, shown, thus producing a pressure differential across the piston 31; the resulting movement of the piston from the neutral position is fed-back to the rod 12 via the shaft 22 and crank 25 to cause the rod 12 to lever about the pivot 10 and restore the baffles 15 to their neutral position, the piston 31 remaining in its new position.
Patent GB-635645-A (GB)
Title: Production of organohalosilanes
IPC: C07F7/12
Filed: 1947-12-04
Abstract: Organohalosilones are prepared by reacting an aromatic halohydrocarbon which contains at least one halogen atom bonded to a carbon atom in an aromatic ring with a halomonohydrosilane at a temperature of from 250 DEG  to 460 DEG  C., at least a portion of the reactants being in condensed phase, e.g. by carrying out the reaction under pressure.  Suitable halomonohydrosilanes contain at least one and preferably more than one halogen atom bonded to the silicon atom, e.g. trichlorosilane, monomethyldichlorosilane and monophenyldichlorosilane.  The aromatic halohydrocarbon may be a benzene derivative containing at least one halogen bonded to a carbon atom in the ring, and may have attached thereto substituents other than halogen and hydrogen atoms, e.g. ethylchlorobenzenes, isopropylchlorobenzenes, 2 - chlorodiphenyl and chloronaphthalenes. Halogen and hydrogen atoms may constitute the only substituents bonded to the carbon atoms as illustrated by monochlorobenzene, o- and p-dichlorobenzene and tetrachlorobenzenes.  In examples the following compounds are prepared: phenyltrichlorosilane, o-, m and p-tolyltrichlorosilanes, o-, m and p-ethylphenyltrichlorosilanes, a mixture of isomeric cumyltrichlorosilanes, o-, m and p-chlorophenyltrichlorosilanes, a mixture of bis-(trichlorosilyl)-benzenes, m- and p-xenyltrichlorosilanes, phenylmethyldichlorosilane, betanaphthyltrichlorosilane, a mixture of bis-(trichlorosilyl)-naphthalenes and o-, m and p-(chlorophenyl)-methyldichlorosilanes.  A mixture of organosilicon compounds is obtained by reacting tetrachlorobenzene and trichlorosilane in accordance with the above process.
Patent GB-1380790-A (GB)
Title: Plant waste heat utilization in a water desalination process
IPC: C02F1/06
Filed: 1972-07-10
Abstract: 1380790 Flash evaporation of water BADGER CO Inc 10 July 1972 [20 Aug 1971] 32118/72 Heading BIB [Also in Division C5] In a flash evaporation process for distilling water, after the impure feed water has passed through coil 56, Fig. 1, in flash evaporator 40 it is heated in heat exchanger 10 by reaction effluent 9 from a chemical reaction before passing via 59 for flashing in evaporator 40. The water vapour condenses on coils 56 and is collected at 62 and discharged at 64. Reaction effluent stream 9 may be the product of steam dehydrogenation of ethylbenzene to produce styrene, and after passing through heat exchanger 10, the stream may be passed to a multistage distillation unit where the improve feed water may be used for cooling before passing to coils 56.
Patent GB-1019206-A (GB)
Title: Thread brake,particularly for double-twist spindles
IPC: D01H13/10
Filed: 1964-08-07
Abstract: 1,019,206. Double twist device. PALITEX PROJECT CO. G.m.b.H. Aug. 7,1964 [Aug. 9, 1963], No. 32155/64. Heading D1D. In a double twist device there is provided a thread brake consisting of two relatively movable members e.g. a ball 7 and a funnel shaped member 8, one of the members, in this case the ball 7 being held in its operative position by the force of a magnet 16. The magnet is slidable in the direction of yarn travel e. g. to the position shown in dashdot line, to lift the ball away from its co-operating brake member 8 so as to facilitate threading up of the spindle and brake. To move the magnet the centering member 3 is pushed downwardly against a spring 13 so that the upper surface of a cup 14 engages the magnet and lifts it relative to the member 8 which is also moved down. The spindle may be placed on a pneumatic device to draw the thread therethrough. In a further form, Fig. 4 (not shown) a magnet normally holds a ball against a pocket the thread passing between the ball and pocket. For threading up, the magnet is lifted so that the weight of the ball overcomes the reduced magnetic attraction and the ball falls into a pocket out of the threading up path. In Fig. 5, (not shown, ) stationary and movable discs between which the thread normally passes are provided in a shaft being across the spindle axis and in normal operation the movable disc which is of magnetic material is urged against the stationary disc by a magnet to tension the yarn. The magnetic force of the magnet on the movable disc may be varied by adjusting the magnet along the axis of the shaft. The magnet may also be raised so that its influence on the disc becomes negligible and threading up is facilitated.
Patent GB-770787-A (GB)
Title: Process for fabricating hollow blades and blades produced thereby
IPC: B23P15/04
Filed: 1954-11-08
Abstract: 770,787. Making turbine blades; angular bonding; stamping. CLARKE, D. J., and STALKER, E. A. Nov. 8, 1954, No. 32256/54. Classes 83 (2) and 83 (4). A hollow sheet metal blade, e.g. for turbines, compressors and the like is fabricated from a flat metal sheet 15 which is fed by rolls 21, 22 over a table 20 and under cutters 28, 30, 31 on a shaft 26 mounted in a framework 24 and driven by pulley 25. The central cutter forms a groove 32 extending part way through the thickness of the sheet; the side cutters 30, 31 form bevels 33 on the edges of the sheet. Following such operation the sheet is fed forwardly into a press 35 and against a stop member 36. The press embodies a plunger 37 operated by ram 38 under the action of hydraulic or other power, the head 39 also carrying a knife 40 which cuts the sheet to the proper length. The lower die 42 is formed with a face 43 on one portion which corresponds to the contour of the surface 11 of the blade and with a face 44 on a second portion corresponding to the contour of the surface 12 of the blade. An apex 45 centrally of the die is immediately beneath the groove 32. The upper die 46 has a face 47 for engagement with the surface 11, a face 48 for engagement with the surface 12 and a projection 49 to enter the groove 32. The dies may be shaped to form any airfoil contour as desired varying throughout its length and with whatever twist is wanted. The blank is then removed from the press and placed in a folding machine which has a base 50, the upper surface of which is contoured to receive the blade portion 11. An anvil 52 is then swung into position about its pivot 53 and a roller or wrapping bar 55 is swung by handle 57 about its pivot 56 so as to fold the portion 12 about the nose 58 of the anvil, the groove 32 facilitating such folding and avoiding the buckling of the sheet, particularly where a short radius bend is produced. When the fold has been completed, the blade is withdrawn from the folding machine. To complete the fabrication, the two trailing edges are brought together and secured as by spot-welding, silver solder, copper brazing or the like; for this operation, the blade may be mounted in a fixture 60 and a length of solder 61 with suitable flux laid in the groove formed between the bevelled edges 33 which may be flared outwardly slightly to receive the solder. The groove 32 at the leading edge may be similarly brazed or soldered, as by applying a length of solder 64 with flux. Final operations include grinding, deburring and polishing of the trailing edge of the blade to a sharp edge.
Patent GB-258455-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P5/50
Filed: 1925-12-22
Abstract: 258,455. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Dec. 22, 1925. Speed-maintaining systems. - To maintain equality of speed between motors M', M<2> driving separate shafts, alternating currents tapped off from the windings of the two motors by means of slip-rings c<1>, c<2> are fed into the stator and rotor respectively of a three-phase torque movement device a. No movement is produced while the frequencies in the stator and rotor are equal; if these become unequal owing to inequality of speed between the motors the device moves a rheostat arm d which alters the field excitation of one motor in a compensatory direction.
Patent GB-973164-A (GB)
Title: A circuit arrangement for the electric generator required for the electro-erosive machining of metallic conducting materials
IPC: G05F1/32
Filed: 1961-09-08
Abstract: 973,164. Electrolytic machining of metals. DEUTSCHE EDELSTAHLWERKE A.G., and ALLGEMEINE ELEKTRICITATS-GES. Sept. 8, 1961 [Sept. 10, 1960], No. 32415/61. Heading C7B. In the electrolytic machining of metals in which a grinding wheel is connected to one rectified D.C. power terminal and the workpiece to the other, voltage surges giving rise to sparking are prevented by including in one circuit, preferably the generator circuit, a non- linear current limiting resistor, and a voltage limiting element in the D.C. circuit, which is matched with the non-linear resistor, whereby surges are limited below sparking voltages in low load periods. The non-linear resistor may be a saturable inductance coil 2 with a ferromagnetic core. An ohmic resistor 5 is connected across the D.C. terminals, the value of which limits the current to a required value. A graph is given. The resistor 5 may be replaced by an accumulator of large capacity and of voltage below arcing voltage. In a further modification the inductance coil 2 is replaced by an inductance coil having an air gap between the rectifier and terminal -13, and which has a maximum reactance under no load. The ohmic resistor 5 has a capacitor in parallel with it.