baber/WOPTO huggingface dataset:
Patent GB-1197328-A (GB)
Title: Nuclear Reactor Fuel
Inventor: LASS JAMES LLOYD
IPC: G21C3/58
Filed: 1967-10-04
Abstract: 1,197,328. Fuel elements. GENERAL ELECTRIC CO. 4 Oct., 1967 [14 Oct., 1966], No. 45279/67. Heading G6C. A nuclear fuel pellet having at least one free volume comprises a primary cavity formed in at least one end of the pellet with a flat rim surrounding the primary cavity, the primary cavity extending inwardly from the inner edge of the flat rim and comprising a frusto-conical surface that merges into a flat circular bottom, and a secondary cavity forming the remainder of the free volume situated in the flat bottom of the primary cavity. The secondary cavity is an identification indentation that may take the form of a symbol or number denoting the percentage concentration of fissile material in the pellet. A fuel rod for use in a cluster-type fuel element comprises a stack of pellets formed as described above and housed within a Zr cladding tube between Zr end plugs welded or fused to opposite ends of the tube. The fuel pellets may be of UO 2 . A plenum chamber which collects fission product gases is provided between the upper end plug and the fuel and contains a spring which forces the pellets into facial contact with one another. A circular wafer may be inserted between the upper end of the uppermost pellet and the bottom end of the spring to prevent fuel particles or chips from entering the plenum chamber and to distribute the spring load uniformly against the uppermost pellet.
Patent GB-1111300-A (GB)
Title: Improvements relating to alternating current frequency converters
IPC: H02M5/293
Filed: 1965-10-26
Abstract: 1,111,300. Transistor oscillator circuits. OHIO CRANKSHAFT CO. 26 Oct., 1965 [27 Oct., 1964], No. 45303/65. Heading H3T. [Also in Division H2] A circuit providing a high frequency supply in loads 20, 21 from a mains frequency supply 20 comprises a first transistor multivibrator 18, 19 which chops the positive half-cycles and a second transistor multivibrator 181, 19<SP>1</SP> which chops the negative half-cycles. As shown, the mains supply is connected to conductors 12, 13 and a third conductor 14 is connected to the junction of series capacitors 15, 16. The load 20 in series with the transistor 18 connect the lines 12 and 14' and the load 21 in series with transistor 19 connect the lines 14, 13. The transistors are cross connected by RC combinations 29, 30, 32, 33. A similar multivibrator is provided using NPN transistors 18<SP>1</SP>, 19<SP>1</SP>, instead of PNP transistors for the negative half-waves, and all four RC combinations have equal components. Since the transistors 18, 19 are alternately conducting the high frequency pulses produced in the load 20 are complementary to those produced in the load 21. In alternative embodiments (a) a three-wire A.C. system is used and the capacitors 15, 16 are dispensed with; (b) four PNP transistors are used and the biasing arrangements in one multi-vibrator are reversed. The output may be applied to induction heating or welding circuits.
Patent GB-928634-A (GB)
Title: Improvements in or relating to electrolytic fusion cells
IPC: B62D55/06
Filed: 1961-12-18
Abstract: 928,634. Fusion cell cathode construction. CIBA Ltd. Dec. 18, 1961 [Dec. 19, 1960], No. 45333/61. Class 41. Cells for fusion electrolysis operating with melt temperatures within the range about 400 to 900 C. have a centrally suspended cylindrical cathode within an annular anode, the cathode being supported by a vertical round bar or rod which serves as a current supply lead and which bar or rod incorporates its own cooling system. The cathode 10 is in the form of a hollow but closed cylinder which is releasably joined to the supporting bar 24, the joint being such as to reduce heat transfer from the cathode to the bar. The cathode 10 is of highly corrosion-resistant metal e.g. nickel, and the annular anode 12 of graphite is contained in crucible 19, also of graphite, containing melt 14 generally of alkali metal chlorides e.g. NaCl or KCl, or eutectic mixtures thereof, containing the metal for recovery in the form of the chloride, fluoride or fluoride double salt. Cylindrical diaphragm 16 separates the cathode space from the anode span to protect the electrolytically separated metal from the halide liberated on the anode wall. Electric heating coils 20 surround the cell which is enclosed and thermally insulated by housing 18. Enclosure 22 prevents oxygenous atmosphere entering the cell and usually an inert atmosphere e.g. of argon or helium, is maintained over the melt. Supporting bar 24 retracts through gland 26 when sufficient metal has been deposited on the cathode and the cathode is cooled by the cooling sleeve 23; deposited metal is removed from the cathode by stripping device 28 and collected in movable receptacle 21. Fig. 2 shows the hollow but closed cylindrical cathode 54 and threaded boss attachment 50 for joining the cathode to the supporting bar 24, which has a cooling sleeve 40 through which coolant e.g. water, oil, is circulated from entry pipe 46/48 to exit pipe 44. The cell is operated to maintain the temperature of the cathode above the freezing temperature of the melt and the temperature of the supporting bar below the freezing temperature of the melt which conditions are achieved by coolant characteristics, primarily its temperature, and by suitable design of the connection for joining the cathode to the support bar which controls heat transfer across the junction. The temperature of the supporting bar is held above the dew point of vapours above the melt to prevent vapour condensation; it is always held above 100 C. to prevent condensation of water: the solution of halides e.g. chlorine, from the atmosphere in condensed water to form acids e.g. HCl promotes active corrosion. Specification 905,881 is referred to.
Patent GB-1037641-A (GB)
Title: 4,4'-bipyridylium quaternary salts
Inventor: BRAUNHOLTZ JOHN THEODORE
IPC: C07D213/22
Filed: 1961-12-20
Abstract: The invention comprises 4,41-bipyiridylium quaternary salts having attached to one of the nitrogen atoms of the 4,41-dipyridyl nucleus an unsubstituted alkyl radical and attached to the other nitrogen atom a substituted alkyl radical. The substituents in the alkyl radical may be, for example, hydroxyl, halogen, carboxyl, alkoxy, carboakoxy, carbamyl, N-substituted carbamyl, amino, substituted amino, phenyl, substituted phenyl and substituted benzoyl.  The anions of the compounds may be monovalent such as chloride, bromide or methosulphate or divalent.  The new compounds may be prepared by quaternizing a 1-substituted-4-(41-pyridyl) pyridinium monoquaternary salt with a suitable quaternizing agent.  Examples are given of the preparation of compounds in which the unsubstituted alkyl substituent is methyl, the substituted alkyl substituent is benzyl, p-bromophenylmethyl, m - nitrophenylmethyl, phenylethyl, hydroxyethyl, p - nitrobenzoylmethyl, (C2H5)2NCOCH2-, CH3COCH2-, benzyl, OHCH2CH2CH2- or C2H5OCOCH2-and the anions are bromine, chlorine and iodine.ALSO:4,41-Bipyridilum quaternary salts of formula <FORM:1037641/A5-A6/1> in which R is an unsubstituted alkyl group R1 is a substituted alkyl group and X is an anion may be used as herbicides.  The substituents in the group R1 may be, for example, hydroxyl, halogen, carboxyl, alkoxy, carboalkoxy, carbamyl, N-substituted carbamyl, amino, pheny, substituted phenyl, acyl and substituted benzoyl and the anions may be, for example, halogen ions or methosulphate ions.  The quaternary salts may be dissolved or dispersed in water or an organic solvent or mixed in powder form with a finely divided diluent, such as talc or china clay, for use as a herbicidal agent.  The compositions may also contain wetting and dispersing agents, binders, stickers, corrosion inhibitors stabilizing agents and colouring agents.
Patent GB-1432719-A (GB)
Title: Hydrostatic piston machines
IPC: F03C1/24
Filed: 1974-10-22
Abstract: 1432719 Reciprocating pumps and motors SULZER BROS Ltd 22 Oct 1974 [23 Oct 1973] 45647/74 Heading F1A In a hydraulic pump or motor comprising a rotary cylinder block 1 mounted on a pintle 2 and having radial pistons 4 with shoes 5 sliding on flat guide surfaces 7 formed in a rotary guidemember 8, pintle 2 is supported at each end either by arms 15 connected to a pivot 16, as shown, or by guide blocks (51), Figs. 4 and 5 (not shown), slidable on casing guideways (50), so as to be movable to vary its eccentricity relative to the guide-member for varying the pump or motor displacement. The adjustment range provides for forward and reverse flow. The pintle movement may be effected hydraulically by a piston (31), Fig. 1 (not shown), acting via a lever arrangement (29), (15'), or manually by a screw (54), (Fig. 4). Drive to or from the guide-member 8 may be via a gear-wheel 13 and either guide-member toothing 12, or a gear-wheel fixed to the guide-member, Fig. 3 (not shown). The guide-member is supported either by casing projections 11, or by rollers (41), (44), (Fig. 3) located in casing apertures. Inlet and outlet connections 25, 26 communicate with the pintle ports via passages 23, 24 in the arms 15.
Patent GB-1284627-A (GB)
Title: Fractionation of mixtures obtained by the cleavage of organic hydroperoxides
IPC: C07C39/04
Filed: 1970-09-24
Abstract: 1284627 Cleavage of organic hydroperoxides HERCULES Inc 24 Sept 1970 [16 Oct 1969] 45659/70 Heading C2C An inorganic acid-free mixture from the cleavage reaction of a hydroperoxide selected from cumene hydroperoxide, cymene hydroperoxides, #-isopropylnaphthalene hydroperoxide and m- and p-diisopropylbenzene mono- and di-hydroperoxides is fractionated by:- (a) introducing the mixture into the lower zone of a single multiple plate distillation column having a lower fractional distillation zone and an upper condensation zone; (b) separating by fractional distillation the mixture in the lower zone into a liquid phenolic fraction and a vaporous acetaldehyde-acetone fraction; (c) withdrawing the liquid phenolic fraction from the bottom of the lower zone; (d) withdrawing the vaporous acetaldehydeacetone fraction from the top of the lower zone and introducing it into the upper zone; (e) separating by fractional condensation the acetaldehyde-acetone fraction in the upper zone into a liquid acetone fraction containing any phenolic fraction introduced into the upper zone and a vaporous acetaldehyde fraction; and (f) withdrawing the liquid acetone fraction from the bottom of the upper zone and vaporous acetaldehyde from the top of the upper zone. Liquid withdrawn from the upper zone may be introduced as reflux into the lower zone. An aqueous solution of one or more alkali metal hydroxides may be introduced into an intermediate stage of the upper zone and the liquid withdrawn from the upper zone and returned as reflux to the lower zone is then drawn from above the stage at which the alkali metal hydroxide is introduced. Some of the vaporous acetaldehyde fraction withdrawn from the upper zone may be condensed and returned as reflux to the upper zone.
Patent GB-1362215-A (GB)
Title: Device for scraping rollers
IPC: E01C19/28
Filed: 1971-10-01
Abstract: 1362215 Scrapers for rollers DYNAPAC MASKIN AB 1 Oct 1971 [2 Oct 1970] 45728/71 Heading B7J A scraper device comprises scraper blades 12, attached to the long sides of a box-shaped frame 13 which is hingedly connected at 14 at its ends adjacent the free ends of a pair of spaced linkage arms 9 which are pivotally connected at their other ends, at 10, to a frame 11 for a roller drum 16, the frame 13 being located by the arms 9 to present the blades 12 parallel to the axis of the drum 16 and being supported by wheel pairs 15 engaged with the periphery of the drum 16 and mounted in the frame 13. The free ends of the linkage arms 9 are connected by springs 17 to the roller drum frame 11.
Patent GB-1166379-A (GB)
Title: Novel Reactive Dyestuff Composition
IPC: D06P1/673
Filed: 1967-10-06
Abstract: 1,166,379. Reactive dye compositions. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 6 Oct., 1967 [12 Oct., 1966], No. 45765/67. Heading D1B. Reactive dye compositions comprise at least one dye in the form of a free acid which is of formula D-SO 2 X in which D is a dyestuff residue having an acidic water solubilising group and X is a group -SO 2 CH 2 CH 2 O SO 3 H or -CH=CH 2  and at least one amino compound which is a nitrogen containing heterocyclic compound or an acid salt thereof or an amine compound of formula HNRR 1  or an acid salt thereof in which R and R 1  are alkyl groups of 1-4 carbon atoms and R 1  may be hydrogen when R is an isopropyl or t-butyl group. When R 1  is alkyl it may be substituted by hydroxyl or hydroxyl which is esterified by sulphuric acid, heterocyclic compounds are imidazole, acid salts of imidazole, morpholine and its acid salts, amine compounds are isopropylamine, t-butylamine, diethylamine, - dimethylamine, N-ethyl-N- hydroxy ethylamine.
Patent GB-1369983-A (GB)
Title: Control means for gear boxes
IPC: B60W30/18
Filed: 1970-09-25
Abstract: 1369983 Change-speed gear control HAWKER SIDDELEY DYNAMICS Ltd 27 Sept 1971 [25 Sept 1970] 45771/70 Heading F2D An automatic change-speed gear control has gear change need indicated by a signal from a bi-directional digital counter 16 and the necessary speed matching to allow the change controlled by the frequency analogues of the speeds monitored as by a toothed wheel and magnetic pick-off on the gear-box input and output shafts N1, N2. An engine 12, Fig. 2, drives wheels 10 through a gear-box 13 connected to the engine through a clutch 13 and brake 19. The speed of the shaft N2, which at the time equals engine speed, is fed to frequency sensitive switches 14, 15 which by a signal f2 indicate the need for a gear change to a digital register 16, which can only effect the change when the speeds of the shafts N2, N3 as determined by the speed matching system 20, Fig. 3, are within the permitted limits of the speeds required for that change. In the speed matching system the frequencies f2, f3 are fed to a counter 22 the latter going also to a flip-flop 24 from which one output f3<SP>1</SP> is fed with f3 through an AND gate 25 to the counter 22 and the other output f3<SP>1</SP> with f3 is fed to an AND gate 26. The output of the counter 22 and the signal from the register 16 indicating the needed change are fed through AND and OR gates 23, 27 to an AND gate 28 also receiving the output of AND gate 26. If the signals at the AND gate 28 indicate the necessary speed match for the desired gear change a signal is fed to a bi-stable device 29 to engage the required dogs with disengagement of the clutch 13 if desired but if it is indicated that the shaft speed N2 is too high the engine is declutched and a brake applied by bi-stable 30 or if the speed is too low the shaft N2 is speeded up by overriding engine throttle through bi-stable 31. The speeding up may be produced by other means.
Patent GB-1106137-A (GB)
Title: Plant for producing pressed plates of glued wood chips, fibrous materials or the like by a multistage heating press
IPC: B27N3/22
Filed: 1966-10-13
Abstract: 1,106,137. Chip-board plant. INDUMA INDUSTRIE MASCHINEN G.m.b.H. 13 Oct., 1966 [14 Oct., 1965], No. 45796/66. Heading Heading B5A. In a chip-board making plant, chip material and binder from hoppers 2 is deposited on to pallets 3, carried by a conveyer 1, and then prepressed by a press 6. The pallets carrying the pre-pressed blanks are then transferred in succession to a multi-stage heated press 8, via a weighing device 15, by a feed device comprising a double paternoster arrangement of chains 10 and 10a, each of which carries rows of fingers 13 (see Fig. 3). The pallets are raised by' the cooperating rows of fingers 3 and when the feed device is full the pallets and blanks are pushed into the press by a push bar 16. The bar 16 carries clamping jaws 20 which engage heads 21 on the pallets so that they can be withdrawn from the press 8 prior to pressing the blanks. The pressed blanks are subsequently drawn out of the press, on to a second double paternoster conveyer 27, by a pull bar 28 having jaws 29 and are deposited one-by-one on to a take-off conveyer 30. The pallets, after withdrawal from the press are raised one-by-one into contact with a conveyer 35 which transfers them to a feedback conveyer 33 whence they are returned to the conveyer, for reuse, by a third double paternoster device 34.
Patent GB-1206786-A (GB)
Title: Improvements in/or relating to electric switches for high currents
IPC: H01H77/10
Filed: 1967-10-10
Abstract: 1,206,786. Heavy current switches; partly magnetic switches. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 10 Oct., 1967 [11 Oct., 1966], No. 46240/67. Heading H1N and H1S. A quick-break heavy current switch comprises two metal parts 7, 8 separated by a small gap 9 which contains a quantity of conductive liquid 10 connecting the metal parts 7, 8 together, the current path being such that the liquid 10 is subjected to magnetic forces driving it out of the gap and means being provided to prevent this movement until it is desired to open the switch. The movement of the liquid may insert resistance into the circuit (Fig. 2, not shown). In the embodiment of Fig. 9 two cylindrical fixed parts 31, 32 are separated by an insulator 33. A movable cylindrical member 34 is in permanent connection with 31 by a conducting liquid bearing 36 and with 32 by a quantity 38 of conducting liquid trapped between annular surfaces 39 and by a second liquid bearing 40 and a resistor 48. The current loop 51 provides a magnetic force tending to drive the liquid 38 towards, the chamber 45; the abutting surfaces at 39 are maintained in engagement by springs 35 preventing escape of the liquid 38. To open the switch a weight 49 impinges on the member 34 driving it a short distance to the right against springs 35; the liquid 38 escapes into a passage 44 and moves towards chamber 45 progressively inserting the resistance 48 into circuit. The movement of the liquid is assisted by passing a gas, such as hydrogen or helium at 1000-1500 C. and a pressure of 100-200 kg.cm.<SP>-2</SP>, through a passage 43. The liquid may be mercury or a sodium-potassium or mercury-indium eutectic. In another embodiment (Figs. 5, 6, not shown) the current normally passes through a stack of metal annuli (19) separated by liquid filled gaps (20); the outer parts of the annuli (19) are divided by insulating rings (21). The liquid is normally maintained in the gaps (20) against the electric forces by an insulating liquid (24) above the surface of the conducting liquid. To open the switch valves (25) are opened permitting the liquid (24) to escape, the electric forces driving the conducting liquid out of the gaps (20) causing the current to follow a much higher resistance path.
Patent GB-1488491-A (GB)
Title: Sheet stripping device
IPC: B65H29/54
Filed: 1974-10-25
Abstract: 1488491 Delivering sheets XEROX CORP 25 Oct 1974 46241/74 Heading B8R Means for stripping a sheet 30 from a rotating surface 20 comprises an arm 52 pivoted at 58 and carrying at one end a rotatable stripper member comprising a bevelled circular disc, the edge 62 of which has at least a point contact with the surface. The surface 66 of the disc may be convex. The stripper member may be of plastics material or hardened metal, e.g. steel coated with silver. The disc may be moved towards and away from the surface in synchronism with the sheet movement, under the control of a cam 90, and may be rotated during such movement to bring a new part into contact with the surface, and cleaned by a brush 80. Alternatively, the disc may be so mounted as to be rotated by its contact with the surface.
Patent GB-1447621-A (GB)
Title: Motor vehicles
IPC: B60K6/10
Filed: 1972-10-06
Abstract: 1447621 Spring propulsion of vehicles; vehicle suspension C W CLARK 2 Oct 1973 [6 Oct 1972] 46266/72 Headings B7H and B7D [Also in Division F2] A vehicle is driven by an elastomeric spring 1 of rubber within a casing 2 rotatably mounted under the floor of the car. The casing 2 has helical gears 4 and 30, meshing gears 5 and 31 respectively on lay shafts 6 and 32. The shaft 32 carries a one-way clutch 54 which only allows rotation of the shaft 32 in the direction of winding spring 1. The shaft 32 also carries a friction clutch 55 carrying a pinion 56 meshing a pinion 57 on a shaft 58 which drives a vehicle axle 7 in the forward direction by a belt 8 and expanding pulleys 9 and 10; reverse drive is provided by pulleys 12, 13 and 14 and a belt 11. The vehicle remains stationary until a pawl 26 disengages toothed disc 24 rotated by a spindle 21 carrying a governor 20, whereupon the vehicle is driven by the spring 1 through gears 4 and 5, lay shaft 6 a pinion 52, pinion 57, lay shaft 58 and belt 8; the vehicle accelerates as a brake shoe 25 is raised. Vehicle braking is provided by rewinding the spring 1 through engaging clutch 55 to rotate shaft 32, gear 31, and gear 30, thus returning kinetic energy to the spring during braking. The spring can also be rewound by a motor 33 when the vehicle is stationary, means being provided for indicating when the spring is nearly unwound and fully wound. The vehicle wheels 60, Fig. 3, are each carried by radius arms 61 having an arm 62 attached to cables 63, 64 tensioned by springs 67 and engaging arms 71 of a pair of one-way clutches 69, rotatable in the same direction. Tension in either cable 63, 64 tends to rotate the clutch shafts, while the springs 67 tend to turn the clutch casings. Thus, up and down movement of the corresponding wheel rotates the clutch shaft to drive a differential gear 72 connected to further differential gears 74, 76, the other input of gear 76 being connected to shaft 32, such that movement of the wheels results in the spring being wound up thereby damping such movements.
Patent GB-1103273-A (GB)
Title: "blade" valves
IPC: B65D90/58
Filed: 1963-09-23
Abstract: 1,103,273. Valves for pneumatic conveyers. W. J. C. TRYTHALL. 18 Aug., 1964 [23 Sept., 1963], No. 46318/67. Divided out of 1,103,272. Heading B8A. The subject-matter of this Specification is the same as that of Specification 1,103,272.
Patent GB-1430190-A (GB)
Title: Tailstock assembly for a machine tool
IPC: B23Q11/00
Filed: 1973-10-03
Abstract: 1430190 Tailstocks WARNER & SWASEY CO 3 Oct 1973 [7 Nov 1972] 46335/74 Divided out of 1430189 Headings B3T and B3B The disclosures in the Specification are similar to those of the parent Specification 1,430,189 but the claims are directed to a tailstock 12 for supporting one end portion of a spindle mounted workpiece and including a carriage 80 movable toward and away from the spindle 20 along a first path extending parallel to the axis of the spindle, a centre 14 for engaging the workpiece, a support means 140 connected with said carriage 80 and said centre 14 for supporting the centre 14 for movement relative to said carriage along a second path extending transversely to the first path, and piston and cylinder means 30 for effecting movement of the centre 14 along said second path between an operating position in which its centre axis is aligned with the axis of the spindle and a retracted position in which said centre is spaced from the workpiece with its centre axis offset from the axis of the spindle.