baber/WOPTO huggingface dataset:
Patent GB-1115084-A (GB)
Title: Lined butterfly valves
IPC: F16K1/226
Filed: 1965-10-26
Abstract: 1,115,084. Valves. CONOFLOW CORPORATION. 26 Oct., 1965 [29 Oct., 1964], No. 45223/65. Heading F2V. A butterfly valve has a liner of resilient material with a seating region comprised of first portions 32 remote from the stem 44 and following a curve, a second portion 68 located at the stem axis and joining the first portions to form corners 112 and a disc 66 formed of rigid material located in the flow passage and having corners 100 at a smaller radius than the comers 112. The liner, which has a partspherical interior surface and is fitted to a metal body, has radial end flanges for registration with the flanges of adjoining pipe sections. The stem of the valve is provided with 0-ring seals mounted in moulded retainers in the liner and is pinned to a boss 62 carrying the disc 66 which has an operative edge of rounded cross-section and somewhat greater diameter than the interior of the liner, whereby the latter is slightly compressed as the disc moves to its closed position. Areas 92 are provided so that the tool which shapes the operative edge of the disc does not cut into the annular surface 68 to a sufficient extent to impair sealing. The valve stem may be mounted in plastic bushings and be keyed to an operating handle.
Patent GB-1091918-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C5/10
Filed: 1964-11-12
Abstract: 1,091,918. Reactors. BABCOCK & WILCOX CO. Nov. 12, 1964 [Nov. 15, 1963], No. 46079/64. Heading G6C. A nuclear fast fission breeder reactor has a core comprising a fertile zone and a fissile zone, and a coolant is circulated upwards through the fertile zone and downwards through the fissile zone. The fissile zone is disposed within the surrounding annular fertile zone, and the top and bottom portions of the fissile zone fuel pins may be of fertile material. A multi-layered thermal shield 66 surrounds the core, and the major part of the coolant flows from an inlet plenum 96 between the layers of the thermal shield, and through orifices 62 to a chamber 98 above the fissile zone 44. The minor portion of coolant flows upwards through the fertile zone 46, to join the remainder of the coolant in chamber 98. The coolant utilized is supercritical water, heavy, light, or a mixture of the two, and the changes in density consequent upon small changes in temperature inherent in supercritical water are utilized in this reactor for control purposes. Coolant leaving the core downwardly passes into one of several concentric zones between plates 48 and 76. Each of these zones contains outlets 82, and flow control piping 84, leading to flow control valves 36. By throttling the flow fractions passing from each outlet zone through the pipes 84, the relative flows through each zone may be varied, as also may the total flow through the core. A shroud 52 directs coolant from the outlet plenum into the extension 26. A small amount of coolant flows in a space between a lining 68 and pressure vessel closure 18, thereby maintaining that at a required temperature. The fuel comprises U 235 , Pu 239 , U 233 , or a mixture of these, alternatively, it may include fertile material e.g. U 238  or Th 232 . The steel pressure vessel may have a bolted or welded top closure 18. Stress relieving of pressure vessel welds may be conducted by adaptation of the normal reactor circulatory equipment, and circulating therethrough gas or steam at the required temperature. Accumulated operating stresses can be relieved in the same way.
Patent GB-973956-A (GB)
Title: Process for separation of ethylenimine
IPC: C07D203/08
Filed: 1962-12-07
Abstract: Ethylene imine is separated from mixtures containing it e.g aqueous solutions thereof containing salts, ammonia and ethylene chloride as in Specification 923,528, by the addition of a saturated aliphatic hydrocarbon of boiling point from 50 to 80 DEG C., especially substantially hexane, preferably at least 2 vols. of hydrocarbon per vol. of ethylene imine, and distilling the ethylene imine as the azeotrope.  The hydrocarbon solutions may be used for reactions as such or if ethylene imine free from hydrocarbons is required it may be extracted with a little water and separated by distillation.
Patent GB-1357434-A (GB)
Title: Vehicles
IPC: A01B63/10
Filed: 1971-10-05
Abstract: 1357434 Agricultural vehide SPERRY RAND CORP 5 Oct 1971 [5 Oct 1970] 46243/ 71 Heading A1P An agricultural vehicle comprises a chassis 12, three implement lift means 26, 28 and 30, and a double-acting hydraulic ram 32. The ram 32 has a rear piston portion 42, which is telescopically contained within a front cylinder portion 44, and is arranged to operate the rear lift means 30 independently of the front and intermediate lift means 26 and 28, respectively. In order to operate lift means 32 front rocker arm 54 is first locked in position. This is effected by raising lift means 26, 28 so that rocker arm 54 abuts against stop 58. Knob 106 is then moved to its forward position (i.e. to the left as indicated in Figure 2), so that rod 94 is also pulled forward, and spring portion 98 of locking mechanism 86 is compressed by guide arm 92. Sway bar 88, which pivots about axis 90, is biased downwards and forward by the spring against stop 60 which is carried by rocker arm 54, which is then locked in position. To move lift means 30 upwardly control valve 34 is operated to permit oil to flow through line 38, Fig. 1 into the front of ram housing 44. Piston portion 42 is thereby driven rearwardly and this drives rear rockshaft 48, through rocker arm 46, counterclockwise, lifting arms 52 upwardly. The arms are lowered by operating valve 34 so as to cause oil to flow into the rear of housing 44 via line 40. In a similar manner the front and intermediate lift means may be operated. Rear lift means 30 is first secured by raising the means until locking block 50 abuts with the rear of chassis 12. Rod 94 is then moved into its rear position and this causes spring 96 to be compressed. The sway bar abuts rear locking block 50 and this effectively stops any movement in the rear rocker arm 46. Valve 34 is then operated so as to permit the passage of oil via line 40 into the ram. The cylinder moves forwardly with respect to the piston portion and rocker arm 54, which is pivoted about axis 56, moves intermediate connecting link 62. This link is connected via stub shaft 64 to drive arm 68 which is fixedly attached to intermediate rockshaft 70 whereby lift arms 74 are pivotted upwardly and the front lifting mechanism 26 is raised by link 76 after lost motion in slot 66 is taken up.
Patent GB-922302-A (GB)
Title: Apparatus for washing and dying fabrics
IPC: D06B3/20
Filed: 1961-12-28
Abstract: In apparatus for washing and dyeing fabric having one or more rotors rotatably mounted in a vessel for guiding the fabric continuously through the vessel, the or each rotor comprises a hollow drum open at both ends and provided with apertures in its peripheral wall and has means for feeding liquid axially into the drum at both ends and out of the drum through the apertures in the wall.  In the embodiment of rotor shown it comprises a hollow drum 1 open at both ends and having on its outer surface radial vanes 2 and cicumferential partitions 3 which together form a plurality of cells 4 in communication with the interior of the drum 1 through apertures 5.  The drum 1 is mounted on a shaft 6 by spokes 8 and propeller blades 7 at each end, the blades 7 being of opposite pitch, and the drum is divided by a central partition 9.  A plurality of such drums are rotatably mounted in a bath, as shown in Fig. 3, and fabric to be treated is passed progressively around the rotors.  The rotation of the rotors may be effected by the movement of the web or the shafts 6 may be suitably driven.  In operation the blades 7 cause liquid to be continuously forced into the interior of the drum and out through the apertures 5 into cells 4.  Those cells 4 which are closed by the fabric will thus be pressurized so that liquid is forced through the fabric and the cells 4 which are open will permit liquid to flow through to cause circulation of the remaining liquid in the bath.  The vanes 2 may alternatively be inclined relative to the axis of the roller or may be in the form of helices.
Patent GB-1389115-A (GB)
Title: Graft copolymer and composition thereof
IPC: C08F279/00
Filed: 1972-10-10
Abstract: 1389115 Graft polymers DENKI KAGAKU KOGYO KK 10 Oct 1972 46701/72 Heading C3G A graft polymer is produced by grafting 65 to 35 parts by weight of a mixture of 3 to 46% by weight of methyl methacrylate, 51 to 90% of styrene and 3 to 9% of acrylonitrile on to 35 to 65 parts of a rubber produced from 0À1 to 1À0% of a divinyl or divinylidene compound, 55 to 85% of 1,3-butadiene, 5 to 30% of styrene and 3 to 40% of methyl methacrylate. The said rubber has an average particle diameter of 0À05 to 0À2 micron, a swelling index of 5 to 25, is more than 90% insoluble in benzene and is prepared in an aqueous emulsion, in which grafting is then carried out. The graft polymer is blended with a vinyl chloride resin. Examples are given in which the divinyl compound is divinyl benzene, a seed polymerization technique is used in one instance in the production of the rubber and polyvinyl chloride is blended with the graft polymers.
Patent GB-1102458-A (GB)
Title: Device for painting areas which terminate in sharply defined edges
IPC: A46B15/00
Filed: 1966-10-20
Abstract: 1,102,458. Hand tool handles. F. DECK AND N. KEIM. 20 Oct., 1966 [6 May, 1966], No. 47072/66. Heading B4K. [Also in Division A4] A paint brush head (9) has a channel section shank (10), which is a friction fit in the open end of a hollow handle (1) having a retractable sleeve (3). A bristle guiding plate (12) may be clipped on to the sleeve (3).
Patent GB-1130368-A (GB)
Title: Improvements in or relating to electromagnetic flowmeters
IPC: G01F1/58
Filed: 1965-11-05
Abstract: 1,130,368. Induction flowmeters. FISCHER & PORTER, G. m. b. H. Nov. 5, 1965 [Nov. 6, 1964], No.47109/65. Heading G1N. In an induction flowmeter, an inhomogeneous magnetic field is provided having a configuration which renders the signal generated at a pair of diametrically disposed electrodes 3 insensitive to changes in the velocity profile of the fluid at any given flow rate. The flux density increases as the distance from the electrode axis increases and decreases as the distance from the centre in a direction parallel to the electrode axis in such a manner that the product of the "weighting factor" times the flux density approaches a constant value at every point within each plane parallel to the electrode axis and perpendicular to the conduit axis, where the "weighting factor" at each point is a measure of the effect of a unit flow signal generated at that point on the total flow signal measured at the electrodes. Fig.3 shows a suitable magnetic field configuration. It is stated that this may be achieved by a pair of plane parallel coils of elliptic or rhombic form, Fig. 4, having a length equal to the conduit diameter and a width equal to between 0À5 and 0À7 of the conduit diameter. Magnetic cores of iron laminations or soft iron particles embedded in plastics may be positioned within the coils or near the electrodes. For conduit diameters of 3 inches or less, flat circular coils may be used.
Patent GB-1473374-A (GB)
Title: Turbomolecular vacuum pump
IPC: F04D19/04
Filed: 1974-10-31
Abstract: 1473374 Molecular pumps LEYBOLDHERAEUS-VERWALTUNG GmbH 31 Oct 1974 [29 Nov 1973] 47269/74 Heading F1C [Also in Division F2] A turbomolecular vacuum pump has its rotor 3 mounted on a stationary vertical pintle 5 via at. least one axial and at least one radial gas bearing. Gas for maintaining the bearings is delivered through ducts 7, 8 and passes through nozzles 14 to 17 of a pair of axially-spaced radial bearings and through nozzles 23 to 26 of an axial bearing. Spent bearing gas is collected in channels 28 to 32 and is delivered therefrom through radial passages (37 to 44), Fig. 2 (not shown), in the pintle to a central collecting duct 9. The rotor is driven by a motor 33, 34. In an alternative embodiment, Figs. 3 and 4 (not shown), the axial bearing is positioned near the lower end of the pintle and most of the gas collecting channels are formed in the pintle instead of in the rotor.
Patent GB-1278368-A (GB)
Title: Hydroxy-2-piperidinyl carbinols
IPC: C07D213/50
Filed: 1970-10-06
Abstract: 1278368 Piperidinyl - carbinol derivatives SMITH KLINE & FRENCH LABORATORIES 6 Oct 1970 [8 Oct 1969] 47372/70 Heading C2C Novel compound I in which R 1  is H, CH 3  or Cl and R 2 -R 4  are H or OH, at least one being OH, and their salts are prepared by methods illustrated in the following reaction sequence. Intermediates isolated are the compounds shown in the reaction sequence above and 2-chloroprotocatechualdehyde, prepared by reaction of 2-chloro-isovanillin with BBr 3 ; and 2-chloro- 3,4 dibenzyloxy - benzaldehyde, prepared by reaction of 2-chloroprotocatechualdehyde with benzyl chloride. Pharmaceutical compositions with use as #- adrenergic stimulants comprise a compound I together with a suitable carrier or diluent.
Patent GB-1150965-A (GB)
Title: A Remote Control Device for an Invalid
Inventor: DUDLEY ALBERT EDWARD FREDERICK
IPC: H01H35/38
Filed: 1966-10-21
Abstract: 1,150,965. Control of A.C. motors. SAUNDERS & DUDLEY Ltd. 20 Oct., 1967 [21 Oct., 1966], No. 47439/66. Heading H2J. [Also in Division H1] An electrical control system arranged to be operated by physically handicapped persons or invalids comprises a switch 17 responsive to an action on the part of the invalid, such as breathing, the operation of the switch causing energization of a solenoid 8, the armature 9 of which is then retracted to close a switch 22 so energizing an electric motor 7 to move the solenoid 8 relatively to a series of switches 10 connected in individual circuits of apparatus to be controlled by the invalid. A microswitch 23 maintains the energization of the motor 7 until the solenoid 8 is in register with a switch 10, whereupon the switch 23 opens to de-energize the motor 7 and the solenoid 8, the de-energization of the solenoid 8 allowing the armature 9 to move to operate the switch 10. The switches 10 are of the " push-on-push-off " type and the motor is provided with a switch 14 to reverse its direction of rotation at the ends of the travel of the solenoid 8. If the invalid is capable of any physical movement the pneumatically operated switch 17 may be replaced by a microswitch to be operated by that movement.
Patent GB-1157711-A (GB)
Title: Improvements in or relating to Electrical Cooking apparatus and Utensils for use therewith
IPC: H05B6/12
Filed: 1966-10-24
Abstract: 1,157,711. Induction heating. ELECTRICITY COUNCIL, M. G. GIBBS, and A. T. CHURCHMAN. 23 Jan., 1968 [24 Oct., 1966], No. 47667/66. Heading H5H. The upwardly facing poles 13, 14 of the laminated or powdered core of an induction cooking apparatus are covered by a non- magnetic non-conductive flexible sheet 15 of e.g. silicone rubber, which provides a liquidtight seal to protect the core and winding(s) 12 from spillage. Concentric poles, as shown, may be provided or else the core may be rectangular and provide a plurality of separate cooking surfaces. The vessel 16 may have a ferromagnetic element 17 embedded in its base, or if it is of insulating material may contain a removable induction element which comprises a ferromagnetic disc embedded in a good conductor. If the vessel is conductive but non- magnetic a removal plastics covered ferromagnetic disc may be placed in the vessel.
Patent GB-1242908-A (GB)
Title: Trays
IPC: B65D1/36
Filed: 1968-11-20
Abstract: 1,242,908. Trays. MONSANTO CO. 20 Nov., 1968 [20 Nov., 1967], No. 48301/69. Divided out of 1,242,907. Heading B8P. The subject matter is as in -Specification 1,242,907 but the claims relate to the corner construction of the tray.
Patent GB-1009961-A (GB)
Title: Improvements in or relating to a continuous process for the catalytic conversion of hydrocarbons to hydrogen rich gases
IPC: C10G45/04
Filed: 1963-12-10
Abstract: In a process for producing a hydrogen-containing gas by reacting steam with gaseous or liquid hydrocarbons containing one to eight carbon atoms the hydrocarbons in admixture with hydrogen are first passed over a catalyst-containing molybdenum and zinc oxide to convert the sulphur compounds in the hydrocarbons into compounds which can be absorbed, e.g. by passage through a bed of zinc oxide, thereafter the purified hydrocarbons are mixed with steam so that the steam/carbon ratio is between 3 and 5 when the temperature of the mixture has been raised to between 550 DEG  and 620 DEG  C. and the hydrocarbon/steam mixture is passed over a catalyst-containing nickel, preferably between 10 and 20% of nickel, on a silico-alumina or -magnesia support at a pressure of from 1 to 25 kg./sq. centimetres and a final temperature of from 650 DEG  to 850 DEG  C. The desulphurizing catalyst may contain copper oxide and the hydrocarbon/steam conversion catalyst may contain an activator such as cerium, yttrium, thorium, zirconium, molybdenum, vanadium or tungsten oxide.  Specifications 728,895 and 1,001,976 are referred to.
Patent GB-1493292-A (GB)
Title: Piercing tools
IPC: B21D28/34
Filed: 1975-11-27
Abstract: 1493292 Spinning; piercing J A VAN GEFFEN 27 Nov 1975 [28 Nov 1974] 48861/75 Headings B3J and B3H The working portion of a rapidly rotatable piercing tool for forming, substantially by frictional heat and pressure, a hole surrounded by a boss 18 in a metal plate on the wall of a metal pipe has a tapered leading part 3 and a part 4 with a cross-section of constant shape based on an equilateral triangle with points 8. The profile comprises at or near each point 8, arcs 9, 12 touching the circumscribed circle 13 at the respective point 8 and lines 11 merging smoothly with the arcs 9, 12 the radii of curvature of the arcs being smaller than the radius of the circle 13 and the arcs 9, i.e. those extending from the point 8 in the direction of rotation 10, having a smaller radius of curvature 14 than the are 12. The lines 11 are preferably arcs of a circle as shown, of radius 17 but may be straight. The part 4 of the working portion is bounded by a shoulder 6 which, in operation, smooths the end face 19 of the boss 18.
Patent GB-1065905-A (GB)
Title: Self-tapping screw
Inventor: ANSINGH CARL HERMAN
IPC: F16B25/00
Filed: 1965-11-17
Abstract: 1,065,905. Self-tapping screws; rolling screw threads. P. L. ROBERTSON MFG. CO. Ltd. Nov. 17, 1965, No. 48879/65. Headings B3M and B3N. [Also in Division F2] A self-tapping screw is formed from a blank (1) of elliptical cross-section, by rolling the blank between dies (2), (2), Fig. 7 (not shown). The dies are inclined to the axis of the screw so as to be closer together at the head end of the screw, so that the screw thread (6) adjacent the screw head (3) is formed with a circular cross-section, whereas the screw thread (6) at the opposite end of the screw has an elliptical cross-section. The major diameter of the threads at the cutting end of the screw is slightly larger than the threads adjacent the head. The threads (6) may terminate short of head 3, and the screw may have a pyramidal, or conical point. The screw may be hardened, and may have two starts.
Patent GB-1192710-A (GB)
Title: Improvements in or relating to Fuel Cells
IPC: H01M4/90
Filed: 1968-10-16
Abstract: 1,192,710. Catalyst composition for fuel cell electrode. E.I. DU PONT DE NEMOURS & CO. 16 Oct., 1968 [1 Nov., 1967], No. 48977/ 68. Heading B1E. [Also in Divisions C3 and H1] A catalyst composition consists of from 1 to 90 weight per cent of tungsten disulphide (WS 2 ) and correspondingly from 10 to 99 weight per cent of at least one oxide of molybdenum having the formula MoO x  wherein x has a value of from 2 to 2.88; specified oxides of molybdenum are MoO 2 , Mo 4 O 11  and Mo 8 O 23  although material initially having the formula Mo 9 O 26  may be used in the preparation of the catalyst composition. The catalyst composition may be prepared either by treating a suspension of the oxide(s) of molybdenum with a solution of tungsten disulphide to yield an insoluble product or by intimately mixing the oxide(s) of molybdenum with tunsten disulphide. The catalyst composition may be in the form of particles which preferably have a size of from 1 to 10 microns and which may be compressed to sheet form. Alternatively, the catalyst composition may be prepared by coating a sheet of the oxide(s) of molybdenum with a thin layer of tungsten disulphide by for example vapour deposition. The catalyst composition may be used either alone or when associated with a base stratum and/or a binder as a fuel electrode (anode) in a fuel cell; examples of suitable materials for the base stratum, which preferably is electrically conductive, and the binder are given in the Specification.
Patent GB-1372573-A (GB)
Title: Horizontal-chamber coking ovens
IPC: C10B33/00
Filed: 1971-10-21
Abstract: 1372573 Discharging coke ovens HARTUNG KUHN & CO MASCHINENFABRIK GmbH 21 Oct 1971 49088/71 Heading F4B Apparatus for collecting and de-dusting the gases produced during the discharge of a horizontal coking oven 1 comprises a hood 20, Fig. 1, connected to extraction and de-dusting apparatus via ducts 28, 30, 36, Fig. 2, and mounted on a frame 21 for movement towards and away from the coking chambers 2. Frame 21 is mounted on a lower frame 23 so that the hood may be moved along the face of the coking oven 1 on rails 26 mounted on supports 27. A coke cake guide 10 is mounted on a truck which is movable on rails 7 to locate the guide in front of a coking chamber 2, the truck being provided with door removing and cleaning means 12, 14 and door frame cleaning means 11. When the guide 10 and hood 20 are in position for discharging a coking chamber the joint between the guide and the oven is sealed by sealing strips 39 which abut oven tie members 5 and the joint between the guide and the hood by sealing strips (47), Fig. 5 (not shown), which are mounted on the hood and held in abutment with a plate (50) welded to the guide by electromagnets (48). The chamber enclosed by the sealing strips 39 and the members 5 is connected via a duct running through the guide 10 and a pipe 36 to extraction and de-dusting apparatus 35. An extension of the hood 20b running from the main part of the hood 20 towards a quenching tower may be provided with apertures 32a, 32b connected via a duct 33 to further extraction and de-dusting apparatus 34a, 34b. The supports 27 are so disposed that the lower frame 23 completely spans the coke ramp 18 and operating platform 19. The extraction and de-dusting devices may be vapour jet dust precipitators, the water boiler 57, vapour generator 58 and vapour accumulator 59 of which may be mounted on the frame 21.
Patent GB-1398809-A (GB)
Title: Hinged control surface for aircraft
IPC: B64C5/10
Filed: 1973-10-22
Abstract: 1398809 Aircraft MESSERSCHMITT-BOLKOW-BLOHM GmbH 22 Oct 1973 [4 Nov 1972] 49123/73 Heading B7G An aircraft having a wing 2, fin 4, and elevator unit 3 has a pair of adjustable surfaces which may be hinged on the underside of the fuselage about longitudinal axes to form jointly a surface 5 or a pair of splayed surfaces 5<SP>1</SP>, 5<SP>11</SP>. The elevator unit comprises on each side of the fuselage a surface 3<SP>1</SP>, which may be adjusted in incidence, supplemented by a slotted leading edge surface 3<SP>11</SP>. In normal flight the surfaces 5<SP>1</SP>, 511 are brought together and the aircraft is subjected to wing surface lift A FR  and elevator lift A H . In slow or manoeuvring flight the surfaces 5<SP>1</SP>, 511 are splayed to create lift A K  and the angle of incidence of the elevator unit is increased to create a counteracting lift A<SP>1</SP> H .