baber/WOPTO huggingface dataset:
Patent GB-1041773-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: WOOTTON WILLIAM ROBERT
IPC: G21C13/00
Filed: 1961-12-29
Abstract: 1,041,773. Reactors. BABCOCK & WILCOX Ltd. Dec. 21, 1962 [Dec. 29, 1961]. No 46790/61 Heading G6C. In a heterogeneous boiling liquid nuclear reactor, pressure variations in the vapour space of a core chamber containing the reactor core and having in operation an upper vapour space and a lower liquid space effect regulation of liquid level in the core chamber tending by variation of moderation and hence of core reactivity to counteract the pressure variations. As shown, the reactor comprises a pressure vessel 2 housed within a biological shield 30 and containing a bell-shaped core chamber 6. A liquid space 12 of the core chamber G is in communication with a liquid space 14 of the pressure vessel 2. Suitably the moderator and coolant is light or heavy water, or a mixture of the two. In the latter case, provision may be made for reducing the ratio of heavy water to light water during the life of the fuel. Water is fed into the pressure vessel 2 through an inlet pipe 19 and steam removed from the core chamber 6 through an outlet pipe 18. The core 9 within the chamber 6 comprises an assembly of stainless steel or zirconium alloy clad, uranium oxide pellet-filled fuel pins and may also include fertile material, uniformly or non- uniformly distributed. Advantageously, the or more fertile material is included in the upper portions of the fuel pins which at the beginning of the life of the core are not immersed in the moderator. A burnable poison, preferably boron, may be dispersed in either the fuel or its cladding. During operation, the liquid level 22 in the annular space 7 surrounding the core chamber 6 is maintained substantially constant and any increase in pressure within the vapour space 16 of the core chamber 6 effects depression of the liquid level 28 in that chamber, whilst any decrease in the pressure results in a rise of the liquid level, the core output thus being maintained constant. Should the pressure in the vapour space 16 rise to reach a predetermined high value, relatively cool liquid is sprayed into the vapour above the liquid level 22 in the annular space 7 from a ring conduit 26 controlled by pressurestats (not shown) connected to and responsive to the pressure in the vapour space 16, condensation of the vapour being effected and this resulting in a rapid lowering of the liquid level 28 and a reduction of pressure in the vapour space 16. The biological shield 30 is provided with a cover 50 formed of an outer portion 54 surrounding a central portion 48 removable along with the pressure vessel 2, and a plug 53 secured to the inlet pipe 19. The portions 54. 48 and the plug 53 are of suitably stepped formation. Handling means is described for raising a spent reactor from its biological shield, lowering it into an adjacent storage chamber and placing a fresh reactor in the biological shield.
Patent GB-1489587-A (GB)
Title: Pneumatic tyre for a two-wheeled vehicle
IPC: B60C11/11
Filed: 1974-10-30
Abstract: 1489587 Tyre treads BRIDGESTONE TIRE KK 30 Oct 1974 [22 Nov 1973] 46931/74 Heading B7C A pneumatic tyre tread having blocks arranged in transverely extending, circumferentially spaced rows comprises at least two different tread patterns A, C portions of said at least two patterns being segmentally arranged such that each half of the tyre tread circumference is provided with at least one portion of each of the two patterns. One of the two patterns (i.e. A) has transverse grooves and blocks which are wide in the circumferential direction while the other pattern C has transverse grooves and blocks which are narrow in the circumferential direction. The amount of tread rubber per unilength over at least one tenth of the circumference of the tread is substantially equal to the amount of tread rubber per unit length over any other such part of the tread, Figs. 1 and 3 show a tread comprising three patterns A, B, C with the portions of patterns A, B, C arranged as illustrated, and with # A ># B ># C . Preferably # A =20 degrees, # B = 16 degrees and # C =12 degrees, and l C /l A  is in the range 0À4 to 0À8. The Specification discloses other sequences of the portions of patterns A, B, C: and sequence of the portions of the two patterns A, C.
Patent GB-1219558-A (GB)
Title: A two-cylinder four-stroke-cycle reciprocating-piston internal combustion engine
IPC: F02B75/18
Filed: 1969-09-24
Abstract: 1,219,558. Crank-shaft for I. C. V-engines; balancing. KLÍCKNER-HUNBOLDT-DEUTZ A.G. Sept. 24, 1969 [Sept.28, 1968], No. 46953/69. Heading F1B and F1M. In a two-cylinder four-stroke I. C. engine in which the V-angle y between the cylinders is greater than 0 degrees and less than 180 degrees, the angle α between the two cranks 5, 6 is substantially equal to the V-angle. Both angles are about 60 degrees. First-order balancing is provided by counterweights on the crank-shaft and supplementary counterweights 10 rotating about an axis 9 in a direction opposite to that of the crank-shaft. The axis 9 is offset from the crankshaft axis 7 by a distance a and offset from the vertical central plane 8 by an angle E in the direction of crank-shaft rotation so that a torque will be developed in opposition to the torque applied to the engine frame by the gas forces in the cylinders.
Patent GB-1044615-A (GB)
Title: Basic thymyl ethers and process for their manufacture
IPC: C07C/
Filed: 1963-11-28
Abstract: The invention comprises compounds of general formula <FORM:1044615/C2/1> in which X and Y are chlorine or bromine, and one of R and R1 is methyl and the other is hydrogen; their physiologically tolerable acid addition salts; and their preparation by (I) coupling 4-halo-thymol-sodium with an Nethyl-N-benzyl-chloropropylamine followed by debenzylating hydrogenation, addition reaction with ethylene oxide and halogenation, or (II) coupling 4-halo-thymol-sodium with an Nethyl-chloropropylamine followed by reaction with ethylene oxide and with thionyl chloride or bromide, or (III) chlorinating a 4-halo-thymyl-(hydroxypropyl)-ether followed by reaction with ethylamino-ethanol and with thionyl chloride or bromide, or (IV) reacting a p-chloroethyl product with sodium bromide in ethanol or with lithium bromide in acetone to form a b -bromo-ethyl derivative. Intermediates specifically obtained are: by method (I), 4-chlorothymyl-[N-ethyl-N-benzyl-1-amino-propyl-(2)]-ether as its naphthalene-1,5-disulphonate, hence the debenzylated hydro-chloride and 4-chlorothymyl - [N - ethyl - N - b  - hydroxyethyl - 1 - amino - propyl - (2)] - ether hydrochloride; isomers are obtained starting from ethyl-(1-chloro-propyl-2)-benzylamine: by method (II), 4-chlorothymyl-[N-ethyl-2-amino-propyl-(1)]-ether hydrochloride, and hence the N-b -hydroxyethyl-compound: and by method (III), (2-chloropropyl- 1) - (4-chlorothymyl)-ether and hence (4 - chlorothymyl) - [N - ethyl - N - b  - hydroxyethyl - amino - isopropyl - (1)] - ether hydrochloride.  (4 - Halothymyl) - (hydroxypropyl) - ether starting materials for method III may be prepared from 4-halo-thymol and propylene oxide or from 4-halo-thymol sodium and chloropropanol.  Pharmaceutical preparations comprise compounds of the invention with carriers.  The compounds have a sympathicolytic-adrenolytic action on the blood pressure.
Patent GB-990615-A (GB)
Title: Film laminating process and apparatus
IPC: B32B27/00
Filed: 1963-11-29
Abstract: 990,615. Laminates and laminating. L. J. VILUTUS, and M. J. VILUTUS, [trading as VILUTUS & CO.]. Nov. 29, 1963 [Jan. 7, 1963; Aug. 14, 1963], No. 47204/63. Heading B5N. Films are laminated together by excluding essentially all of the air from between them while applying a laminating pressure controlled by the tension in one of the films. In the embodiment shown in Fig. 1, apparatus employable comprises rolls 17, 21 from which films 15, 16 are drawn and fed, via the nip formed by a laminating roll 46 and friction roll 54, where they are laminated together, to a storage roll 14, driven at constant speed, and on which is applied pressure by a further friction roll 43, , film 16 having also passed through a floating tension and pressure applying apparatus which applies a tension to the film in the region 59 and a pressure between rolls 54 and 46 and 43 and 14, and which consists of an arm 29 pivotably mounted to a support 28 and having mounted thereon a friction roll 33, which contacts an idler roll 34, and pivotably mounted levers 42, 52, the former of which carries the laminating roll 46, an idler roll 50 and the friction roll 43, and the latter of which carries an idler roll 57 and the friction roll 54 which applies pressure to the laminating roll. All friction rolls are rubber covered. As the films enter the said nip, most of the air is squeezed from therebetween, but improved bonding may be achieved either by evacuating the space 60 or by enclosing the apparatus in a vacuum chamber 61. A third film 66 may be combined with films 15, 16 to form a three layer laminate. Optionally, high voltage electrodes 63, 74 may be used to apply an electrostatic charge to one of each pair of contacting surfaces. In the alternative embodiment of Fig. 2, only lever 42 of the floating tension and pressure applying unit is employed, said lever being pivotably mounted on a support 78, tension being applied to film 16 by slightly braking roll 21. In the embodiment of Fig. 3 (not shown), the films to be laminated are first brought together by directing both of them between rolls 31 and 34, and then subsequently laminated by passage between rolls 54 and 46. If desired, a layer of ink may be incorporated between the films prior to laminating. Suitable material which may be laminated include any combination of the following: P.V.C., polyvinyl acetate, cellulose acetate, cellulose butyrate, cellulose triacetate, cellulose nitrate, polyvinylidene chloride, rubber hydrochloride, polyamides, acrylic, regenerated cellulose, regenerated cellulose coated with a normally crystalline copolymer of vinyl chloride and vinylidene chloride, polyethylene, polystyrene, P.T.F.E., polyester, polyvinyl alcohol, polypropylene and normally crystalline copolymers of vinyl chloride and vinylidene chloride.
Patent GB-1438837-A (GB)
Title: Liquid crystal cell
IPC: G09G3/18
Filed: 1973-10-10
Abstract: 1438837 Liquid crystal compositions INTERNATIONAL BUSINESS MACHINES CORP 10 Oct 1973 [3 Nov 1972] 47304/73 Heading C4X [Also in Divisions H4 and G5] The resistivity of a dynamic scattering nematic liquid crystal material such as pmethoxybenzylidene - p - n - butylaniline is modified by the addition of choline chloride.
Patent GB-1065781-A (GB)
Title: Fibrous product of glass and manufacture thereof
IPC: D02G3/18
Filed: 1963-12-03
Abstract: 1,065,781. Spinning yarns. PITTSBURGH PLATE GLASS CO. Dec. 3, 1963 [Dec. 26, 1962, Feb. 11, 1963], No. 47632/63. Headings D1F and D1W. A high density, low bulk yarn (or tow) is composed of longitudinally extending, permanently twist-crimped fibre glass strands which are relatively movable with respect to one another, the strands consisting of filaments permanently deformed in three dimensions and intertwined and relatively movable with respect to one another. The yarn &c. is expandable, e.g. so as to fill irregularly shaped cavities, into a bulky fibrous product such as a mat which may be used for heat insulation. As shown in Fig. 1, strands 14 of glass filaments supplied from packages 12 are grouped into a tow 20 which passes through a tensioner 22, over a roller 24 (carried by a spring 26 so that it serves as a shock absorber for abrupt tension changes) around a capstan wheel 28, through a tubular furnace 30 and then through a falsetwister 32, around roller 34 and a driven, advancing roller 36 and the crimped material is wound on a package 38. The crimped yarn &c. is expanded by passage through a jet or nozzle, Figs. 2 and 5 (not shown) wherein it is subjected to a stream of air under pressure in an angular direction to the yarn &c. axis. The strands 14 may be temporarily coated with an organic binder which is thermally decomposed during the subsequent heat-treatment.
Patent GB-940729-A (GB)
Title: Method of connecting a tube made of a thermoplastic synthetic resin to another structural element which is solid
IPC: F16L47/16
Filed: 1960-01-25
Abstract: 940,729. Tube &c. joints. A. STULZ. Jan. 25, 1960 [Oct. 16, 1959], No. 47820/62. Divided out of 940,728. Heading F2G. A rigid element 3 provided with a screwthread 4 is screwed into a tube 1 of resilient, hardened thermoplastic resin, the tube being resiliently deformed so as to secure the two elements rigidly together. The dimensions of the screw-thread of the tube are smaller than those of the screw-thread of the element 3.
Patent GB-1062160-A (GB)
Title: Polypropylene tyre yarns
Inventor: BEAUMONT ALBERT GORDON
IPC: B60C9/00
Filed: 1962-12-21
Abstract: 1,062,160. Wheel tyres. COURTAULDS Ltd. Dec. 20, 1963 [Dec. 21, 1962], No. 48276/62. Heading B7C. [Also in Division B5] A multifilament yarn used as the weft yarn of a tyre fabric which is extended in the weft as the tyre is formed, consists of highly crystalline polypropylene of specific gravity between 0À90 and 0À94, has a denier of 250 to 350, a yield point at between 0À7 and 1À5 pounds load (preferably between 0À9 and 1À2 pounds load), and at between 10 and 30% (preferably 15 to 25%) extension, and a uniform extensibility of at least 50%. The yarn may be made by melt spinning the polypropylene (see Heading B5B).
Patent GB-1161602-A (GB)
Title: Improvements in or relating to Vehicle Door Fastening Devices
Inventor: NEEDHAM THOMAS EDGAR
IPC: E05B65/32
Filed: 1965-11-13
Abstract: 1,161,602. Releasable fastenings. WILMOTBREEDEN Ltd. 10 Nov., 1966 [13 Nov., 1965], No. 48298/65. Heading E2A.  A latch mechanism of a vehicle door or a release linkage for such a mechanism has a member which, in the event of a collision. moves, as a result of its inertia, into a position in which it it blocks release movement of the latch mechanism or of the release linkage. The blocking member may take the form of a pendulum 14, Fig. 3, lying in a fore and aft plane of the vehicle. In the event of a collision the pendulum 14 moves against the action of a light tension spring 11 into the broken-line position in which an arm 17 engages in a notch 19 in a lever 9 to block clockwise movement of the latter which would release a pivoted-bolt mechanism, Figs. 1 and 2 (not shown), and which might otherwise occur due to the inertia of the remote control linkage connected to the lever 9. The pendulum may be replaced by a sleeve 14, Fig. 4, mounted on the remote control link 13 and having a part 27 which, in the event of a collision, embraces an arm 26 of the lever 22 actuated by the inner door handle so as to prevent releasing movement of the linkage. Alternatively, a pendulum may be mounted on the pivot 21 between the link 13 and lever 22 and may engage a fixed projection, when it swings, to prevent releasing movement of the link 13.
Patent GB-1444776-A (GB)
Title: Electrical contact element
IPC: H01H1/021
Filed: 1973-10-17
Abstract: 1444776 Making electrical contact elements; extruding G RAU 17 Oct 1973 [17 Oct 1972] 48450/73 Headings B3A and B3P [Also in Division H1] An electrical contact element is made of fibre impregnated material and at least its contact surface is shaped by plastic deformation. The fibre reinforced material may form the whole element or just the contact surface, Fig. 2 (not shown). The fibres extend unidirectionally and are substantially normal to the contact surface. The fibres may be all of the same material, e.g. a base metal, or of different materials. They are provided in a matrix material, e.g. silver. Suitable material combinations are silver/nickel, copper/tungsten and silver/titanium. The element is produced by upsetting a cut-off length of fibre impregnated wire. In the second embodiment the contact surface is cold welded to the stem which may be copper.
Patent GB-965628-A (GB)
Title: Paper cutting machine
IPC: B26D1/38
Filed: 1962-12-28
Abstract: 965,628. Cutting paper webs. D. R. GRODY. Dec. 28, 1962 [Jan. 5, 1962], No. 48782/62. Heading B4B. [Also in Divisions B6 and B8] A paper-cutting machine comprises a draw roll 80, Figs. 1 and 2, for feeding at least one web 12 of paper along a predetermined path, means 54, 56 for continuously severing the web or webs longitudinally, a rotary cutter 40 to cut the web or webs transversely to form sheets of predetermined size, and means for stacking said sheets to form a plurality of stacks. Webs drawn from rolls 44 are led under a tensioning roll 46 over a roll 52 and then to a longitudinal slitter consisting of co-operating lower and upper discs 58, 68, Fig. 7. The discs 58 are spaced apart on a shaft 60 driven by a pulley 61 and belt 62 from a pulley 63, Fig. 2, and the discs 68 are mounted on a sleeve 70 supported on an eccentric shaft 72; a handle 74 extending from this shaft permits raising and lowering of the discs 68 and a cam 76 moves the sleeve axially against a coil-spring to cause the discs 68 to contact the discs 58. Springs 82, Fig. 7 urge the blades 68 in contact with the discs 58 so that rotation of the latter discs causes rotation of the blades 68. The webs are drawn through the slitter by the draw roll 80 which is belt-driven from a motor 91 and co-operates with a pinch-roll 86 which has a rubber surface to spread the webs flat against the draw roll 80 and is maintained in contact with the draw roll by air cylinders 92 and connecting rods 94 secured to pivoted arms 88. Where several sheets are to be cut together, the draw roll may be corrugated to minimize creep. The rotary cutter 40, which follows the draw roll, is directly geared 100, 102, Fig. 3, to the draw roll shaft 98. Between the draw roll and the cutter are nip rolls 104, 106, driven respectively by a belt drive and direct gearing from the lower roll, both running at a higher speed than the web. The rotary cutter carries an adjustablymounted helical blade 120 coacting with a fixed blade 118 and the entire assembly is mounted for movement to and from the draw roll by a handle 126; the cutting assembly may be adjustably skewed or pivoted by an adjusting screw to provide accurate transverse cutting and to compensate for the bias of the helical blade, and each end of the cylinder is vertically adjustable for different web thicknesses. The cutter system may be modified by including two oppositely-rotating knife cylinders each having a helically disposed blade, Fig. 13 (not shown). The cut sheets 14 are carried away from the knife cylinder by a tape-conveyer system 11, Fig. 1 (see Division B8) and delivered to first and second stacking stations 18, 20.
Patent GB-1267722-A (GB)
Title: Improvements relating to needling looms
Inventor: OXLEY GEOFFREY SNOWDON
IPC: D04H18/02
Filed: 1969-10-03
Abstract: 1,267,722. Needling machines. E. ILLING- WORTH & CO. (BRADFORD) Ltd. 6 Aug., 1970 [3 Oct., 1969], No. 48836/69. Heading D1R. A needle loom has a needle beam 10 of hollow box section in which is located a pair of drive transmission units 16 removably connected to beam 10. Each unit comprises a shaft 28 with a disc 26 eccentrically and rigidly mounted thereon and a sliding block 18 which is carried on rods 20 connected to casing 17 so that it can slide in the beam direction but is fixed in a direction perpendicular thereto. The block 18 has a bore 24 in which the disc 26 is located so that rotation of shaft 28 causes vertical reciprocation of beam 10.
Patent GB-1163299-A (GB)
Title: Method for Automatically Marking Frame Irons in Ship Building by Means of Numerical Control
IPC: B23Q17/22
Filed: 1966-11-01
Abstract: 1,163,299. Scribers. NORWAY, CENTRAL INSTITUTE FOR INDUSTRIAL RESEARCH. 1 Nov., 1966 [5 Nov., 1965], No. 48990/66. Heading B4X. A method of automatically marking the outlines of frame-irons for ships, on a workpiece, by numerical control of a lay-out tool, comprises placing a marking unit 1 supporting the lay-out tool 9 on the workpiece 5 for relative movement in contact with one edge 6 of the workpiece to define one axis of an orthogonal coordinate system, said one axis (X) being substantially tangential to said edge at each position of the unit and the other axis (Y) intersecting the one axis at the marking unit, and moving the unit along the edge to displace the one axis (X) tangentially to the edge, the lay-out tool being moved simultaneously along the other axis, whereby the workpiece is marked with a curve or points of a curve, such that subsequent bending of the workpiece while sighting along the curve compensates for any initial non-linearities in the workpiece edge 6. The unit may be driven along the edge by a motor 3 and reduction gearing, the other end of the unit being supported against the inclined workpiece 5 by a roller 8. Electrical pulses generated in accordance with measured intervals of length along the workpiece, as determined by the roller 8 control the marking by the lay-out tool whose positioning along the other axis (Y) is numerically controlled. Two scribers 10 may be used.
Patent GB-1479469-A (GB)
Title: Disperse monoazo dyestuffs
IPC: C09B29/08
Filed: 1975-10-15
Abstract: 1479469 Disperse monoazo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Oct 1975 [15 Nov 1974] 49486/74 Heading C4P Novel monoazo dyes having the formula (where one of Q<SP>1</SP> and Q<SP>2</SP> is H and the other is Cl, Br, CN, NO 2 , alkoxycarbonyl or alkylsulphonyl; Q<SP>3</SP> is NO 2  or CN: X is optionally substituted lower alkyl, alkenyl, cycloalkyl or aryl; Y is H, Cl, Br, alkyl, optionally substituted alkoxy or phenoxy; R is H, optionally substituted alkyl, alkenyl, aryl, cycloalkyl or a group -ACOOZ; A is C 2-8  alkylene; Z is C 3-10  alkenyl or cycloalkenyl radical which may be substituted) are prepared by diazotization and coupling. The dyes are used for colouring synthetic textile materials, particularly polyamide, cellulose acetate and polyester, in reddish-blue to greenish-blue shades.
Patent GB-1427764-A (GB)
Title: Pressure switches
IPC: H01H35/38
Filed: 1973-10-24
Abstract: 1427764 Fluid pressure actuated switches HANS SASSERATH & CO KG 25 Oct 1973 [28 Oct 1972] 49609/73 Heading H1N A fluid pressure actuated switch comprises a first piston 38 which can travel as far as abutment 36 under the influence of a pressure in duct 26, a second piston 42 sealed to and sliding within a bore of piston 38, biased against the pressure by a spring 64 (acting via spindle 52) and having an abutment 46 limiting its spring biased travel within the first piston against the applied pressure and a bi-stable electric switch 72 actuated in opposite senses by movement of first piston 38 against the pressure and of second piston 42 with the pressure against the force of spring 64. Mutatis matandis the piston may be replaced by diaphragms or bellows. A high pressure in duct 26 moves both pistons 38, 42, against spring 64, Outer piston 38 stops at shoulder 36 whilst inner piston 42 continues to move, lifting spindle 52 until the lower pair of locknuts 70 moves switch lever 74. As the pressure drops, the second locknut pair 68 does not engage switch lever 74 until abutment 46 has engaged the outer piston 38 and both pistons have moved together away from abutment 36, thus providing a pressure (and time) interval between switching on and off microswitch 12. The locknuts 68, 70 are adjustable in position on spindle 68. Lever 76 extends through hole 76 in wall 12 of upper casing 18. The switch may be used to control the pump of an hydraulic system.