baber/WOPTO huggingface dataset:
Patent GB-1501038-A (GB)
Title: Synthesis of urea
IPC: C07C239/00
Filed: 1976-09-20
Abstract: 1501038 Urea synthesis MITSUI TOATSU CHEMICALS Inc 20 Sept 1976 [22 Sept 1975] 38714/76 Heading C2C Urea is synthesized from ammonia and carbon dioxide using a molar ratio of ammonia to carbon dioxide of from 5 : 1 to 12 : 1, in a process in which the urea-synthesis effluent is pressurized and then heated in a separation zone to separate therefrom unreacted ammonium carbamate and excess ammonia in the form of a mixed gas of ammonia and carbon dioxide, and this mixed gas is recycled to the urea-synthesis zone.
Patent GB-843408-A (GB)
Title: Polymerisation of olefins and new catalysts therefor
IPC: C08F10/00
Filed: 1957-12-13
Abstract: Olefin polymerization is carried out using as catalyst the reaction product, in an inert diluent, of a metal of Group I, II or III or a hydride or organo-metallic compound thereof with a reducible metal compound of Group 4A, 5A, 6A or 8 in stoichiometric proportions at 100-300 DEG C. which is activated with an organo-aluminium compound. Specified olefins are propylene, butene-1, pentene 1, heptene-1 and decene-1.  Specified Group I-III materials are aluminium triethyl, trioctyl, tri-n- or iso-butyl, tri-n- or iso-propyl, dialkyl aluminium compounds (particularly the chloride), aluminium triphenyl, the hydrides of chromium and the hydrides, allyl or aryl compounds of the alkali or alkaline earth metals.  The reducible metal compounds include the halides, oxy-halides, complex halides, oxides, hydroxides, alcoholates, benzoates, acetates and acetyl acetonates of titanium, zirconium, hafnium, thorium, uranium, vanadium, niobium, tantalum, chromium and molybdenum, especially titanium or zirconium tetrachloride or tetrabromide.  Specified diluents are isopentane, n-heptane, n-decane, n-dodecane, refined kerosene or white oil, benzene, xylene and chlorobenzene.ALSO:A catalyst for the polymerization of olefins comprises the reaction product, in an inert diluent of a metal of Group I-III or a hydride or organo-metallic compound thereof with a reducible metal compound of Group IVa, Va, VIa or VIII in stoichiometric proportions at 100-300 DEG C. and activated with an organoaluminium compound.  Specified Groups I-III materials are aluminium triethyl, trioctyl, tri-n- or iso-butyl tri-n- or iso-propyl, dialkyl aluminium compounds, (particularly the chloride), aluminium triphenyl the hydrides of aluminium and the hydrides, alkyl or aryl compounds of the alkali or alkaline earth metals. The reducible metal compounds include the halides, oxy-halides, complex halides, oxides, hydroxides, alcoholates, benzoates, acetates, and acetyl acetonates of titanium, zirconium, hafnium, thorium, uranium, vanadium, niobium, tantalum, chromium and molybdenum, especially titanium, and zirconium tetrachlorides or tetrabromides.  Specified diluents are isopentane, n-heptane, n-decane, n-dodecane, refined kerosene, or white oil, benzene, xylene and chlorobenzene.
Patent GB-371958-A (GB)
Title: Improvements in or relating to embroidery machines
IPC: D05C3/04
Filed: 1931-09-29
Abstract: 371,958. Embroidery machines. HUNTBACH, J., Byron Works, Platt Street, Nottingham. Seyt. 29, 1931, No. 39020. [Class 112.] Surface threads are applied by devices mounted on a stationary bar 5 in front of some or all of the needles 1. Intermeshing gear wheels 7, 8 are mounted on a bracket 4, the lower one 7 being rotated by engagement with a rack 16 which is mounted on a bar 18 and which is reciprocated by one cam, synchronously with the needle, during the forward movement of the needle to rotate one or more threads 15 supplied from bobbins 13 mounted on projecting pins 12 on a plate 11 mounted on the wheel 8, through half a revolution. During the return movement of the needle 1 the bar 18 is rotated by a second cam to remove the rack 16 out of line with the wheel 7, which then remains stationary. The surface thread devices can be thrown out of action by an axial movement of the cams or cam bowls by which the rack 16 is reciprocated. Specification 344,781 is referred to.
Patent GB-1099426-A (GB)
Title: A container for breathing apparatus
IPC: A62B25/00
Filed: 1965-09-13
Abstract: 1,099,426. Container for breathing apparatus. AUERGESELLSCHAFT G.m.b.H. Sept. 13, 1965 [Jan. 19, 1965], No. 39041/65. Heading B8P. [Also in Division E2] A container for breathing apparatus comprises a cover 6, Fig. 1, which is pressed against the lower part 7 of the container by a strap 8 passing across the cover and incorporating a snap-fastening 9. One end of the strap is hooked into an eye 11 on the part 7 and the other end of the strap is hooked on to a member 14 which itself releasably engages an eye 16 on the part 17 and into which a body belt 19 engages. Release of the snap fastener 9 thus opens the container and releases it from the member 14 and the belt.
Patent GB-902804-A (GB)
Title: Rubber antidegradants
Inventor: BROWN JOSEPH PATRICK
IPC: C08K5/3465
Filed: 1959-11-18
Abstract: 2-guanidinoquinazoline or one of its salts are incorporated as an antidegradant into rubber.  Specified rubbers are natural rubber, polybutadiene and copolymers thereof with styrene, acrylonitrile, isobutylene and methyl methacrylate.  Specified antidegradants are 6-methyl, 6-ethyl, 6-iso-propyl, 6-n-butyl, 6-t-butyl, 6-methoxy, 6-ethoxy, 8-ethoxy, 6-chloro, 6-7-dichloro, and methylene bis-6,61-, 2-guanidino-4-methyl-quinazolines, 6-ethyl-, 6-ethoxy and 8-ethoxy, 2-guanidino-4-ethyl quinazolines, and 6-ethoxy-2-guanidino-4-n-butyl quinazoline, preferably in amounts from 0,2 to 5% per 100 parts of rubber.  The usual vulcanization ingredients may be present and the composition may be vulcanized.
Patent GB-900209-A (GB)
Title: Electric supply control by magnetic amplifiers
Inventor: GODFREY NELSON FREDERICK JOHN
IPC: G05F1/33
Filed: 1957-12-17
Abstract: 900,209. Control of electric lamps. PHOENIX TELEPHONE & ELECTRIC WORKS Ltd. Dec. 11, 1958 [Dec. 17, 1957], No. 39256/57. Class 38 (4). [Also in Group XXXIX] A load such as a lamp circuit D, Fig. 1, is controlled by a series-connected variable impedance F and a parallel connected saturable reactor G. The main winding of the reactor is connected across the circuit D by leads H. The reactor is biased over a winding in series with resistor J and is controlled by a winding connected in series with rectifier L and resistor K across the lamp circuit D. The reactor G is biased so as to have a low impedance when circuit D is dimmed. When the impedances of F and D are of the same order, reactor G increases the range over which F can control the dimming. The variable impedance F may be the two-stage magnetic amplifier described in Specification 899,242. In this amplifier, feedback is provided by auto-self-excitation and by external windings.
Patent GB-1434693-A (GB)
Title: Cutting apparatus
IPC: A41B11/14
Filed: 1974-09-09
Abstract: 1434693 Cutting apparatus BONNETERIE BOSTEELS-DE SMETH 9 Sept 1974 [7 Sept 1973] 39314/74 Heading B4B [Also in Division D1] Apparatus for making a cut at one end of a knitted tube in the manufacture of pantyhose comprises a rotary device 1 having at least two vertical arms 2 and at least two work stations at one of which a knitted tube to be cut is fed on to an arm 2 and at the other of which the tube disposed on the arm is cut and then removed therefrom. As shown, the device I has four arms 2 each attached to a projection 7 of a step-wise driven rotary hollow column 6. Each arm 2 comprises a blade formed with a U-section recess 9 forming a guide for the movement of a cutting tool 10 which comprises a motor-driven rotary cutting blade 11 and a foot 12 for supporting the tube during cutting. The tool 10 is attached to a carriage 13 having rollers 14 movable along the recess 9 to locate the foot 12 beneath the stretched tube. The blade 11 moves in a notch 15 in the bottom of the recess 9. The movement of the carriage 13 is controlled by a jack 17 pivotable about a point 19 and retained in the upright position by a spring 21 to urge the carriage 13 and the tool 10 against the arm 2. Control valves 22, 24 are disposed at the ends of travel of the tool 10. The electric motor driving the blade 11 is energizable by a switch 25 controlled by a resilient arm 26 on the carriage 13 and engageable against a fixed ramp 27. During cutting, the tube is retained on the arm 2 by a shoe 28 pivoted to the piston-rod 29 of a double-acting jack (30), Fig. 2 (not shown). Each arm 2 has a slot 24 for the location of a knitted tube and a ramp 35 is directed towards the arm 2 at the station 4 for feeding the tube. The column 6 is drivable in one direction by a double-acting jack 41, Fig. 3, driving a chain 38 engaging a pinion 36 on the column 6, a return spring 39 being provided. The column 6 carries a disc 42 with profiled notches 43 cooperable with a locking finger 44 to stop the column in each work position. Movement of the column 6 against the direction of driving is prevented by a hook 45 on a lever 46 urged by a spring 47 into engagement with one of four fingers 45A on the disc 42. A pusher 48 on the piston-rod 40 of the jack 41 opens the hook 45 against the force of the spring 47 in the rest position of the column. The cut tube is stripped from the arm 2 by a pin 56 which is movable by a jack 59 in a slot 57 in a ramp 58.
Patent GB-1526435-A (GB)
Title: Internal combustion engine supercharging systems
IPC: F02B33/36
Filed: 1975-09-25
Abstract: 1526435 Supercharging I C engines HONDA GIKEN KOGYO KK 25 Sept 1975 [27 Sept 1974] 39421/75 Heading FIB An I.C. engine comprises a supercharging system having a screw-compressor 30 which dis-  charges into an intermediate chamber 40 and is driven from an engine crank-shaft 19, the system being located between a carburetter 20 and inlet duct means 11 of the engine cylinders 13, the flow cross-sectional area of the chamber 40 being substantially greater than that of the inlet duct means. The chamber 40 is large enough for the air-fuel mixture to be fed to the engine cylinder 13 at substantially constant pressure and small enough for the response of the engine to the carburetter throttle valve to be sufficiently rapid.
Patent GB-1409499-A (GB)
Title: Timepiece dials
IPC: G04D3/00
Filed: 1973-08-22
Abstract: 1409499 Timepiece dials SUWA SEIKOSHA KK 22 Aug 1973 [23 Aug 1972 7 Sept 1972] 39733/73 Heading G3T A timepiece dial has at least a part made of a material with a crystalline surface structure visible to the naked eye. The material may be a metal or alloy or comprise a compound such as a metal oxide, carbide, boride or nitride. Examples are described in which the crystalline structure is formed by heating a brass dial or a copper dial coated with cobalt; alternatively an iron-copper particle mixture is sintered to form a dial. The surface may be etched to make the crystal structure more visible, and may be plated with a 2 micron thick silver layer. The dial may be protected by a clear lacquer.
Patent GB-1478973-A (GB)
Title: Electrical measuring or indicating instruments
IPC: G01R5/14
Filed: 1973-08-22
Abstract: 1478973 Moving-iron instruments REYROLLE PARSONS Ltd 20 Aug 1974 39798/73 Heading G1U A moving-iron instrument has a cylindrical coilformer having in its outer surface 11 an elongate recess 15 extending circumferentially with its longer sides non-parallel and into which is fitted an arcuate fixed-iron 19 flush with the former surface and having at one end an inwardly turned tail 18 which passes through a slot 16 in the former and projects inside to form a polepiece Fig. 1 (not shown). The measuring coil 20 is wound around the former being separated from the iron 19 by a layer of insulating tape. To facilitate fitting the iron 19, recesses 12A, 13A are formed in the rims 12, 13 of the coil-former. The invention may be used in the meter disclosed in Specification 1381739.
Patent GB-1476978-A (GB)
Title: Cartridge for the consolidation of rock or coal
IPC: C09K17/00
Filed: 1974-09-12
Abstract: 1476978 Two-chambered cartridges BERGWERKSVERBAND GmbH 12 Sept 1974 [12 Sept 1973] 39874/74 Heading B8C [Also in Division E1] An elongated cartridge for insertion into a bore hole in a rock or coal face comprises a first chamber containing an involatile liquid diisocyanate of high flash point and a second chamber containing a polyol having a hydroxyl number of from 200 to 400. In the described embodiment one chamber is located within the other chamber and both chambers extend the full length of the cartridge. The cartridge is formed of plastic sheet and the chambers are separated by a partition impervious to water.
Patent GB-1035259-A (GB)
Title: Process for making bright-drying aqueous polymer dispersions
IPC: C08F10/00
Filed: 1963-10-11
Abstract: Bright-drying aqueous dispersions of graft polymers are made by polymerizing ethylene, with or without other ethylenic compounds, in an aqueous alkaline medium at a temperature above 50 DEG  C. at an elevated pressure in the presence of a persulphate initiator and in the presence of 1.5 to 20% by weight of the water used of an oxyethylated fat, alcohol or fatty acid.  Comonomers specified for use with ethylene are vinyl acetate, vinyl halides, acrylates, maleates, acrylamide and vinyl acrylamides.  The examples describe polymerizing ethylene, alone or with vinyl acetate, in aqueous solutions of oxyethylated stearyl alcohol and stearic acid.
Patent GB-1127433-A (GB)
Title: Conveyors
IPC: B66B21/12
Filed: 1964-10-02
Abstract: 1,127,433. Railway systems. C. C. McLAREN. 30 Dec., 1965 [2 Oct., 1964; 24 Dec., 1964], Nos. 40293/64 and 52409/64. Heading B7L. [Also in Division B8] A conveyer for transferring passengers &c. to a continuously moving conveyer (not shown), comprises a plurality of platforms 1 moving with a constant velocity in a first direction y at a feed-in point A and increasing their speed in a second direction x normal to the first direction as they travel from the feed-in A to a feed-out point B while maintaining their speed in the first direction. The platforms 1 are driven by a plurality of truncated spiral gears 2a, 2b, 2c, of similar pitch and speed of rotation, spaced in the x direction with their axis of rotation downwardly tilted, to provide a horizontal upper edge, and substantially parallel to the y direction. The spiral gears 2a &c. engage a toothed rack 3 on the underside of the platforms and thus provide the required acceleration in the x direction as the diameter of the spiral increases, whilst a peg 5 depending from the platform bears against the side 4 of the spiral to provide the velocity in the y direction. The initial diameter of a succeeding gear is slightly smaller than the final diameter of a preceding gear to provide a constant acceleration and a smooth change over between gears. The gears are spaced so that as a platform is about to be disengaged from one gear it is engaged by the succeeding gear. The transfer conveyer on attaining a speed substantially the same as the main conveyer may be maintained at that speed, by providing constant diameter gears, and on reaching the feed-out point B adjacent the main conveyer may pass under the main conveyer before returning to the feed-in A along an endless track (not shown). A similar conveyer may be arranged to act in reverse at the feed out point of the main conveyer. The feed-in and feed-out points of the respective conveyers may be at different levels with the conveyers acting as escalators.
Patent GB-1322545-A (GB)
Title: Method and apparatus for continuously exchanging or renewing the sleepers and optionally the rails of railway track
IPC: E01B27/06
Filed: 1970-08-21
Abstract: 1322545 Relaying railway track F PLASSER 21 Aug 1970 [7 Oct 1969] 40343/70 Heading E1G A track-relaying train includes a central section which bridges the trackless relaying gap and which is pivoted to rail-borne vehicles on either side of the gap; the central section carries ballast cleaning and redistribution machinery. As shown, the forward rail-borne vehicle 3 for transporting old sleepers has pivoted to it a supporting arm 11 which carries the device 12 for taking up the old sleepers. The supporting arm 11 is connected by an hydraulic jack 18 to the chassis 16 of the ballast cleaning machine which runs on crawler tracks 17 on the track bed. The other end of the chassis 16 is connected by another hydraulic jack to a second supporting arm 11 carrying a device 32 for laying new sleepers. The second supporting arm is pivoted to the rearward rail-borne vehicle 26 for transporting the new sleepers. The ballast cleaning machine includes a chain conveyor 19 which feeds dirty ballast to a cleaning screen 21. Cleaned ballast is returned to the track bed in front of the bed grader 29 via conveyors 30 or is fed, via a conveyor 34, to a hopper 25. A further conveyor 22 deposits waste at the track-side or to another vehicle. A transmitter (37), Figs. 2, 2a, 2b (not shown) for a beam of infra-red radiation or laser light is mounted on the vehicle 3 and cooperation with sensors, e.g. shadow boards (36', 36"), on the ballast cleaning machine to ensure correct track alignment. The supporting arms 11 also carry bogies 14; these may be lowered and the crawler tracks 17 raised so that the whole convoy can run along a track.
Patent GB-966118-A (GB)
Title: Fungicides comprising organic ferric ammonium arsonates
IPC: C07F9/72
Filed: 1961-11-13
Abstract: The ferric ammonium salts of compounds of the formula: <FORM:0966118/C1/1> where R is alkyl of 1 to 4 carbon atoms are prepared (1) by adding ferric sulphate or chloride to an aqueous solution of RAsO3Na2 to precipitate the ferric salt and adding the precipitate to ammonia water or (2) adding aqueous ferric chloride to aqueous RAsO3H2, neutralising with ammonia and dissolving the precipitate in ammonia. The compounds are used as fungicides (see Division A5).ALSO:A fungicidal composition comprises a solid or liquid carrier or a gaseous propellant and a water-soluble ferric ammonium salt of a compound having the general formula <FORM:0966118/A5-A6/1> wherein R represents an alkyl group of 1 to 4 carbon atoms.  The compositions may contain additional iron compounds to prevent phytotoxicity, e.g. water-soluble organic or inorganic iron salts or complex iron salts such as ferric sulphate, ferric chloride, ferric phosphate, ferric citrate or ferric ammonium citrate.  In aqueous solution the additional iron compound is a complex salt. The compositions may be tablets, dusts, e.g. using tobacco powder as carrier, solutions, aerosols and may contain adhesives, non-ionic, anionic and cationic surface active agents. Conventional insecticides, e.g. lead arsenate, nicotine, rotenone, B.H.C., D.D.T., "Malathion" (Registered Trade Mark), Parathion and ethyl-p-nitrophenylthiono-benzenephosphate; fungicides, e.g. sulphur compounds, copper compounds and mercury compounds; plant growth regulants and fertilizers may also be added to the compositions of the invention.
Patent GB-933639-A (GB)
Title: A coupler for quickly coupling and uncoupling conduits
IPC: F16L29/02
Filed: 1961-11-13
Abstract: 933,639. Pipe couplings. BAND-IT CO. Nov. 13, 1961 [Sept. 8, 1961], No. 40481/61. Class 99(1). In a coupling comprising a female part 11 and a male part 10, the part 11 incorporates a valve 21 which is displaced to open condition and returned by a spring 48 to closed condition respectively upon coupling and uncoupling the parts and has a spheriodically-shaped crown portion 21 which faces away from a valve seat 16 formed by a flared portion of the bore 15 of the part 11, a resilient gasket 30 for engagement with the seat and a rigid stop ring 31 which faces the valve seat and limits movement of the valve in a direction towards the seat; the valve is guided for movement axially of the seat, for example, by a ring 39 mounted on the valve and having axially-extending legs slidable in the bore of the part 11. One of the coupling parts has axially located and rotatably mounted thereon an internally screw-threaded sleeve 13 which is engageable by an external screw-thread on the other coupling part for moving the hollow stem of the coupling part 10 either towards or away from the valve, the stem being engageable with the valve to move the valve off the seat only subsequent to interengagement of the screw-threads of the sleeve and the said other coupling part. There is a member for locking the coupling parts together in the coupled condition. As shown, the sleeve 13 is rotatably secured on the part 11 by a split retaining ring 58a, and a sealing ring 59 is disposed in a groove 58 in the bore of that part. The locking member comprises a plate 66 slidable laterally of and in guideways 68 formed in the sleeve, the aperture 67 in the plate, which allows insertion of the stem into the part 11, having a cut-out portion 71 which engages in a groove 70 in the stem; the plate is held in the position corresponding to the locked or unlocked condition of the coupling parts by a spring-loaded ball 72 engageable in one or other of a pair of recesses 75, 76 in the plate.
Patent GB-1104051-A (GB)
Title: Improvements in or relating to false twisting apparatus
Inventor: MATTINGLY DENIS ALBERT EDWARD
IPC: D01H1/32
Filed: 1963-10-16
Abstract: 1,104,051. Control of several motors. KLINGER MANUFACTURING CO. Ltd. 2 Oct., 1964 [16 Oct., 1963], No. 40929/63. Heading H2J. [Also in Divisions D1 and G3] In a false twisting apparatus the means for forwarding the yarn and the twist imparting means are driven by first and second prime movers, and means are provided to produce electric signals dependent on the speed of one of the prime movers and to control the speed of the other prime mover in accordance with these signals to ensure that the rate of insertion of false twist remains constant. In Fig. 2 the motor 25 driving the forwarding roller 7, 8 also drives a generator 28 of electrical pulses or A.C. current, which pulses are amplified and fed to synchronous motors 26 driving the false twist means 9. Alternatively (Fig. 3, not shown) the pulses or A.C. current are converted to a two-phase supply of A.O. current to energize hysteresis motors which drive the false twist means. In both forms the generator rotors may be changed or the generator may be driven through a variable speed gear-box to vary the degree of twist inserted. In a further form (Fig. 6, not shown) separate motors (A.C. or D.C.) drive the twist inserting means and the yarn forwarding means respectively and each drives a generator the output of which is related to its speed. The outputs of the two generators are fed to an electrical bridge circuit which controls the current passing to the driving motors in such a way that their relative speed remains constant. The bridge circuit may be adjustable so that the speed ratio may be changed. In all forms the yarn forwarding means may be driven through a variable speed gear-box.
Patent GB-1074710-A (GB)
Title: Isotopic treatment process
IPC: B01D59/34
Filed: 1964-10-07
Abstract: A gaseous mixture of two isotopic compounds, e.g U235F6 and U238F6, is separated, at least partially, into its two components by irradiating the mixture first with infra-red of narrow line width to excite the U235 molecules but not the U238 molecules, and then with ultra-violet of narrow line width to ionize the U235 molecules whilst leaving the U238 molecules unionized.  The ionized molecules are then separated from the unionized molecules, e.g. by deflection in electric and/or magnetic fields to pass out of the treatment chamber through a separate outlet duet.  A multi-stage cascade process may be used.ALSO:A gaseous mixture of two isotopic compounds, e.g. U235 F6 and U238 F6, is separated, at least partially, into its two components by irradiating the mixture first with infra-red of narrow line width to excite the U235 molecules but not the U238 molecules, and then with ultra-violet of narrow line width to ionize the U235 molecules whilst leaving the U238 molecules unionized.  The ionized molecules are then separated from the unionized molecules e.g. by deflection in electric/magnetic fields, to pass out of the treatment chamber through a separate outlet duct.  A multi-stage cascade process may be used.