baber/WOPTO huggingface dataset:
Patent GB-903142-A (GB)
Title: A nuclear reactor
IPC: G21C7/00
Filed: 1958-12-03
Abstract: 903,142. Reactors. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Dec. 3, 1958 [Dec. 5, 1957], No. 39001/58. Class 39 (4). Overheating of fuel elements in regions of enhanced flux caused by a local excess of water moderator is avoided by reducing the concentration of fissile material or by providing a neutron absorber in those regions. Fig. 4 shows fuel rods 25 I  near a support-plate 20. To avoid overheating in zone I, zone II contains fuel which is less enriched than zone III and may also contain a large proportion of Th232, e.g. as ThO 2  mixed with UO 2 . The Specification also describes the use of control-rod followers containing Th232, or a strong absorber such as B, Hf, Cd in diluted form, the controlrods being boron silicate. Specification 847,902 is referred to.
Patent GB-1449810-A (GB)
Title: Benzo-or naphtho-dipyran-di-n-tetrazolyl- -carboxamide derivative methods for their production and compositions containing them
IPC: C07D311/02
Filed: 1973-08-17
Abstract: 1449810 Benzo- or naphtho-dipyran-dicarboxamide derivatives FISONS Ltd 16 Nov 1973 [5 Dec 1972 17 Aug 1973 (2)] 55997/72 39046/73 and 39047/73 Heading C2C [Also in Division A5] Novel compounds I and their salts in which two chains of Formula XX (in which each pair of R 9  and R 10  may be different and each R 9  and R 10  are selected from hydrogen, C 1-6  alkyl C 2-6  alkenyl, phenyl, phenyl C 1-6  alkyl, C 2-6  alkanoyl or C 2-6  alkoxycarbonyl) are attached to two pairs of ortho positions on a benzene or naphthalene nucleus which may be further substituted are prepared by (1) replacing a group R 12  with hydrogen (by using a hydrogen halide, catalytic hydrogenation, sodium in liquid ammonia, basic conditions or reactive diamination) in a compound in which two chains of Formula XXd are attached respectively to two pairs of ortho positions on a benzene or naphthalene nucleus which may be further substituted or removing both groups R 12  from a corresponding compound in which R 10  = R 12  to form a compound I (R 10  = H) (2) cyclizing a compound in which two chains of Formula XXe are attached to two pairs of ortho positions of an optionally further substituted benzene or naphthalene nucleus (3) reacting a compound in which two chains are attached to two pairs of ortho positions of an optionally further substituted benzene or naphthelene nucleus or an acid halide, ester or mixed anhydride thereof with a compound of Formula IV to form a compound I (R 9 =H when R 10 =H) (4) cyclizing a compound in which two pairs of groups -OH and (in which Y is -OH or NL 1 L 2  in which L 1  and L 2  are hydrogen phenyl or C 1-6  alkyl or together form a saturated or unsaturated 4 or 5 membered alkylene chain) are attached to two pairs of ortho positions on an optionally further substituted benzene or naphthalene nucleus or (5) selectively dehydrogenating a compound in which two chains of Formula XXf are attached to two pairs of ortho positions on an optionally further substituted benzene or naphthalene nucleus and, if desired, converting a compound I to a salt thereof compounds I prepared are those of Formulµ In, Io and Ip in which R 9  is hydrogen or methyl, R 10  is hydrogen, methyl, allyl carbethoxy, acetyl or benzyl and Pa and Qa are selected from hydrogen, C 1-5  alkyl, allyl, hydroxyl, chlorine, bromine, methoxy, ethoxy, allyloxy benzyloxy, nitro and ethoxymethyl, salts of a compound In (in which Qa, R 9  and R 10  are hydrogen and Pa is methoxy) with lithium, sodium, potassium, calcium, diethanolamine, tri-ethanolamine, tris-hydroxy methyl-methylamine, morpholine and N-methyl glucamine are also prepared. Compounds I inhibit antigen-antibody reactions.
Patent GB-1064220-A (GB)
Title: Apparatus for calculating functions related to the stability of a ship
IPC: B63B39/12
Filed: 1965-09-14
Abstract: 1,064,220. Calculators relating to stability of ships. INSTYTUT MORSKI. [Sept. 14, 1965 [Sept. 14, 1964], No. 39289/65. Heading G4B. Rotation of a handle 1 effecting the mechanical adjustment corresponding to the displacement # of a ship until the required displacement is indicated on a scale 4 results in a set of radial cams 6 generating for each of several possible angles # of list of the ship the corresponding cross curves q(#, #) of the vessel. A second handle 15 effects another mechanical adjustment, the value of KG (the height of the centre of gravity), which results in corresponding rotation of a shaft 20 and gearwheels 21. Each gear-wheel corresponding to one of the angles # converts the rotation of the shaft 20 into a rotation proportional to the product KG sin #. Addition gears 14 then generate a function q(#, #) - KG sin # so that members 28 connected to output shafts 26 are moved by this amount. To find the angle of inclination of the tangent to the stability curve at the origin (which is equal to the preliminary metacentric height GM) a further cam 7 rotated by the handle 1 generates a function k.KM (the height of the vessel's metacentre above the keel). The input KG from the handle 15 is converted by gear-wheels 22 into a value proportional to the product k.KG and the addition gear 14 generates an output proportional to KM - KG = GM, i.e. the required metacentric height.
Patent GB-987566-A (GB)
Title: Improvements in and relating to beading
IPC: B01D29/11
Filed: 1961-03-28
Abstract: 987,566. Trim-beads. SCHLEGEL MANUFACTURING CO. March 28, 1961 [March 30, 1960], No. 39500/64. Divided out of 987,565. Heading E1R. A trim-bead comprises a flexible channelshaped carcass 20, externally covered with fabric 30 which is wrapped around the edges of the channel and is adhesively secured to the inner surface of the channel, sharp edged means being provided which stand proud of the exposed surface of the fabric within the channel so as to contact and bite into the member over which the bead is engaged in use. The carcass may be constructed of wire bent to form a zigzag and the sharp edged means may be constituted by barbs 25 struck out of the wire zig-zag and projecting through the fabric. Alternatively the sharp edged means may be constituted by gritty particles held by a layer of adhesive on the surface of the fabric within the channel, Fig. 5 (not shown).
Patent GB-1150585-A (GB)
Title: Improvements in or relating to Conveyors
IPC: B65G17/20
Filed: 1966-09-05
Abstract: 1,150,585. Endless conveyers. TERLINDEN & CO. 5 Sept., 1966 [15 Sept., 1965], No. 39521/66. Heading B8A. An endless conveyer comprises a cable 10 connecting sliders 12 which move along the inside of a rail 11. The cable and load carrying hooks 13 are secured between halves 12a, 12b of the sliders which may be of a polyamide plastic with a dry lubricating filling of nylon to which molybdenum disulphide has been added. The hooks 13 are of different lengths to permit selective removal of articles by pick-off fingers 20, 20<SP>1</SP>, 20<SP>11</SP> which can be moved into and out of their operative positions. A toothed driving wheel 16 may have a circumferential slot for the cable 10 or there may be two separate axially spaced wheels. Instead of the hooks 13 rings may be provided for engagement with article-carrying hooks. The cable 10 may be replaced by a bar chain, the sliders 12 being connected to ends of the bars. In a further modification (Fig. 5, not shown), the hook has a portion (22) to prevent accidental removal of an article hanger which may be raised, prior to removal, by a wedge (23). Another form of hanger carrier (Figs. 6, 7, not shown) comprises a two-part fork (31) which pivots on a member (27) depending from the slider (12) and which is spring- biased to normally form an aperture (37) for receiving a hanger Discharge of the carrier occurs when one of a number of pins (44) spaced along a rail (26) engages an arm 38 secured to the fork (31).
Patent GB-1015850-A (GB)
Title: Improvements in and relating to fourdrinier machines
IPC: D21F1/52
Filed: 1964-09-30
Abstract: 1,015,850. Paper-making apparatus. KARLSTADS MEKANISKA WERKSTAD A.B. Sept. 30,1964 [Oct. 23,1963], No. 39777/64. Heading D2A. Each of some at least of the suction boxes 9 in the Fourdrinier section of a paper-making, board-making, or pulp-drying machine has a plurality of generally downwardly directed tubes 11 uniformly arranged along the length of the box transversely to the running direction of the wire and extending into a water trough 27 between main beams 23 thereby to constitute a common water seal for the tubes. The trough has an adjustable side outlet 29 and may extend the length of the Fourdrinier section to collect water from the table rolls and/or drainage bars. Each box has a suction pipe 31 and a pipe 33 connected to an adjustable air supply.
Patent GB-1244063-A (GB)
Title: Improvements in or relating to apparatus for raising liquids in well bores
IPC: E21B43/12
Filed: 1969-08-08
Abstract: 1,244,063. Raising liquids by aerating an ascending column. BAKER OIL TOOLS Inc. Aug.8, 1969 [Oct.3, 1968], No.39780/69. Heading F1R, In a gas lift valve 100 used to inject highpressure gas for raising liquids in a tubular string of a well bore a valve member 29 shifts in a housing 24 between a closed position engaging a valve seat 27 to prevent high-pressure gas which enters through the side chokes 30 to flow via the seat into the tubular string and an open position to permit such flow. The valve member 29 has a first surface Ap subject to gas pressure provided from a tubing annulus K and a second surface Av subject to liquid pressure in the tubular string when the valve is engaged with the seat 27 and a spring 38 urging the valve member 29 toward open position, the area of the first surface Ap being greater than the area of the second Av. A valve seat 25 is adapted to be engaged by a ball check valve element 26 to prevent reverse flow of liquid from the tubing string. In the open position the flow of gas through the throttles 30 accelerates and gas pressure acting downwards on the valve 29 is exceeded by the greater pressure acting upwardly over the area Ap which shifts it to the closed position. In another embodiment, Figs.4a, 4b the gas lift valve is located within the tubing string T and comprises a section 50 threadedly secured to the tubing string and containing an outer housing structure 55 and an inner housing 70 which is threadedly attached to anupper cage 73 to which the housing 75 of the gas lift valve 101a is secured. This valve is the same as the one 100 in, Fig.2. Gas under pressure from the tubing-casing annulus K enters the inner housing 70 via ports 69, 79 and ball check valve 81 flowing through the chokes 30 and valve seat 27 to the tubing string T thereabove. At the same time liquid flows via passages 84 and annulus 85 into the tubing string T. A suitable retrieving tool can be run in on a wire line through the tubing string T to engage and retract latches 64 and also become coupled to a mandrel 62 to retrieve the valve assembly. In the embodiment of Fig.8 (not shown) the lift valve has a central orifice 95 through which gas can flow continuously when the valve is closed. The valve may be used with a diffferential pressure liquid control valve (N) Fig.1 (not shown) installed in tubing string T along which a series of spaced preset gas lift valve (101 may also be installed.
Patent GB-1196866-A (GB)
Title: Method of Foaming Plastics.
Inventor: ZIEMEK GERHARD
IPC: B29B7/74
Filed: 1968-08-22
Abstract: 1,196,866. Foaming plastics. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 22 Aug., 1968 [22 Aug., 1967; 2 Feb., 1968], No. 40141/68. Headings C3C and C3R. [Also in Division B1-2] Plastics, e.g. polyurethanes, are foamed by mixing at least two constituents, fed from separate storage tanks and mixed and propelled to the outlet of the mixing chamber under the effect of a separate, non-fluorocarbon, gas flow which takes no part in the chemical reaction and does not serve as an inflating agent. A preferred gas is compressed air which may be simultaneously used for driving a mechanical mixer. Drawings (not shown) illustrate apparatus for carrying out the process (see Division B1)
Patent GB-991448-A (GB)
Title: Improvements in model railway waggon couplings
IPC: A63H19/18
Filed: 1963-10-11
Abstract: 991,448. Toy railway waggons. C. K. EDWARDS, and L. D. EDWARDS. Oct. 11, 1963, No. 40184/63. Heading A6S. A model railway waggon has a horizontally movable coupling member 30 urged to coupling position with another similar coupling member by a spring 34 so that hooks 38 engage, and a depending magnetic member 44 thereon urges the said coupling member 30 to an uncoupling position when co-operating with a stationary magnet 46 on the rails 14. The coupling members 30 have curved arms 40 which, when two waggons are brought together, are each pushed apart against springs 34 and subsequently latch together. The said members 30 are provided with depending magnetic members which, when brought within the field of a longitudinally magnetized magnet 46, are urged together to tend to unlatch the waggons. The movement of one waggon towards the other completes the unlatching operation.
Patent GB-1377474-A (GB)
Title: Systems for testing insulating or dielectric material
IPC: G01R31/14
Filed: 1971-11-22
Abstract: 1377474 Testing insulators or dielectrics F C ROBINSON & PARTNERS Ltd 22 Nov 1971 [21 Aug 1970] 40475/70 Heading G1U In a method of testing a specimen 20 of insulating material, the load presented to the transformer 19 is determined and pulses are applied of a power exceeding the continuous power rating of the transformer. Operation of the generator 17 causes sequence timer 14 to operate, causing contactor 13 and switch 15 to close in turn, the switch 15 preferably being closed for five half cycles. Fault signals are fed through amplifier 23 to a recorder 28, while a voltage from unit 27 is supplied to a memory voltmeter 38. In order to determine the inception voltage, fault signals are fed through shaper 30 of coincidence circuit 29 to bi-stable 31 and hence to counter 32. The output from curcuit 16 is fed to monostables 34, 35 to counter 36. Monostable 35 produces a resetpulse to bi-stable 31 so that the first pulse occurring after 31 has been reset is fed forward to counter 32. The counters 32, 36 supply output pulses to comparator 37 which when both are present, generates a signal to hold the voltmeter at the reading appearing at the occurrence of the fault. The counters 32, 36 are reset from the comparator 37 after the generation of the hold signal or upon receipt of a pulse from counter 32 without a pulse from counter 36.
Patent GB-1076586-A (GB)
Title: Improved apparatus for the storage of perishable animal and plant materials
IPC: F24F11/00
Filed: 1965-02-05
Abstract: The subject matter of this Specification is identical with that of Specification 1,076,584 but the claims relate to the detection and automatic control of the oxygen content and optionally also the carbon dioxide content of the storage chamber.
Patent GB-1475378-A (GB)
Title: Liquid crystal display device
IPC: G02F1/1343
Filed: 1974-09-18
Abstract: 1475378 Controlling light INTERNATIONAL BUSINESS MACHINES CORP 18 Sept 1974 [19 Dec 1973] 40593/74 HeadingG2F [Also in Division G5] In a cell comprising a layer of homotropically aligned nematic liquid crystal material of positive dielectric anisotropy between two parallel transparent plates, a pair of electrodes is disposed on the inner surface of one plate so that an electric field may be applied in the plane of the layer to produce a local homogeneously aligned region which then appears birefringent to light at normal incidence on the cell. The cell is disposed between crossed polarizers, and a number of selectively addressable electrode pairs may be provided e.g. as a "figure of eight" for alphanumeric display. The homotropic alignment is provided by addition of a pyridinium or quarternary ammonium salt to the nematic material. The latter may be a nitrile derivative of a Schiff base, or a mixture, or a diester compound.
Patent GB-1437727-A (GB)
Title: Slack compensator
IPC: D04H11/04
Filed: 1973-08-29
Abstract: 1437727 Pile fabrics DEERING MILLIKEN RESEARCH CORP 29 Aug 1973 40731/ 73 Heading D1K In a machine for making pile fabrics in which a sheet of yarns 10 is folded by blades 20, 22 between two opposed adhesive coated backing sheets 17, the tension in yarns 10 is maintained substantially constant by blowing air from a conduit 96 onto them. Co-pending application 40728/73 is referred to.
Patent GB-1590068-A (GB)
Title: Animal feed compounds
IPC: A23K50/15
Filed: 1977-09-30
Abstract: The composition has a dry weight of 750 to 850 g/l, it assays 13.5-16.5% of urea nitrogen and 5.5-7.5% (by weight) of phosphorus. In a preferred form, it contains, in addition, certain proportions of ammonia nitrogen, sulphur, zinc, manganese, copper, iodine and cobalt. The composition is prepared by mixing, in the weight ratios corresponding to the above levels, urea phosphate and urea and by dissolving them in water; for the preferred composition, ammonium sulphate and the sulphates of the trace elements mentioned are added. The composition can be advantageously used with cellulosic vegetables low in nitrogen and phosphorus.
Patent GB-913852-A (GB)
Title: Cracking of mono-olefins
IPC: C07C4/04
Filed: 1960-11-28
Abstract: Olefins and diolefins are obtained by the pyrolytic cracking of olefins, containing at least 6 carbon atoms in the molecule and carrying an alkyl group of at least two carbon atoms on at least one of the carbon atoms bearing the double bond, in the presence of at least one refractory olefin selected from 2,3-dimethylbutene-2, 2-methylbutene-2, isobutene, butene-2 or propylene or a substance which yields at least one of these under the reaction conditions. The olefin is split at a position between the first and second carbon atoms from the carbon atom carrying the double bond; suitable olefins are specified to produce butadiene, isoprene, piperylene, 2-ethylbutadiene-1,3, 2,3-dimethylbutadiene-1,3, 3-methylpentadiene-1,3, and 2-or 4-methylpentadiene-1,3.  Olefins are also specified which will yield the required refractory olefin. Suitable conditions are 300-1,000 DEG C., 0.001-3 seconds, 10 mm. Hg. to 500 p.s.i.g., a mol percentage amount of refractory olefin based on olefin to be cracked of 0.1-50, and optionally 0.5-15 mols of an inert diluent per mol of olefin to be cracked.  Suitable diluents are steam, carbon dioxide, hydrogen, helium, neon, argon, methane or ethane. Examples illustrate the conversion of 2-methylpentene-2 alone or mixed with 3-methylpentene-2 to isoprene in the presence of 2,3-dimethylbutene-2, 2-ethylpentene-2 to 2-ethylbutadiene-1,3 in the presence of 2-methylbutene-2 and of 3-ethylpentene-2 to 2-ethylbutadiene-1,3 in the presence of 2,3-dimethylbutene-2.
Patent GB-897169-A (GB)
Title: Improvements in and relating to electric converter circuits
IPC: H02M3/338
Filed: 1960-11-29
Abstract: 897,169. Converting. GENERAL MOTORS CORPORATION. Nov. 29, 1960 [Dec. 9, 1959], No. 40977/60. Class 38 (2). [Also in Group XL (c)] A D.C. to D.C. converter comprises a pushpull transistor oscillator feeding a rectifier bridge 22 having one D.C. output terminal (+) connected through a load 24 to the centre tap of a primary winding 16 and the other output terminal ( - ) connected to the centre tap of a feed-back winding 18 whose ends are connected to the bases of transistors 10, 12. The arrangement provides for the output voltage to be the sum of the voltage across the secondary winding 20, the voltage across half the feed-back winding 18, and the battery voltage 14, and ensures (a) that starter bias current is determined by the load, (b) that power dissipated in the bias resistors of conventional circuits is dissipated in the load, and (c) feed-back current during operation is commensurate with the load. The transistor oscillator utilizes a transformer having a core of magnetic material which exhibits a square hysteresis loop.
Patent GB-928034-A (GB)
Title: Improvements in and relating to apparatus for stamping out discs
IPC: B26F1/04
Filed: 1960-11-30
Abstract: 928,034. Cutting-out presses. J. M. VOITH G.m.b.H. Nov. 30, 1960 [Dec. 1, 1959], No. 41113/60. Class 31 (1). Apparatus for cutting out at least approximately circular discs comprises a plurality of concentric, or approximately concentric, or cutting out tools 6, 6<SP>1</SP>, 6<SP>11</SP> provided on the ends opposite to the cutting blades with'spring-urged bolt-like extensions 7, 7<SP>1</SP>, 711, the extensions of a selected tool being actuated by means of arms 10 provided on a rotatable plunger 9. Each tool is preferably divided into four equal segments the blades of which are slightly shorter than the lengths of the segments in a circumferential direction so that the blades do not form a closed outline.
Patent GB-1366562-A (GB)
Title: Language teaching device
IPC: G09B19/08
Filed: 1972-09-05
Abstract: 1366562 Teaching languages C A VAN PATTEN 5 Sept 1972 [8 Dec 1971 24 May 1972] 41184/72 Heading G5G A language-teaching device comprises a card 10 and an open-ended holder 60 having spaced transparent sides 62, 64 to receive the card, there being means 72 on the holder to mask part of the face of the card when it is inserted in the holder, said means bearing phrases in the user's language and the card bearing corresponding phrases in a foreign language. Marks 78, 781 to ensure correct alignment are provided. The card can be rotated 180 degrees in its own plane and reinserted to present the same phrases in a second foreign language. A different set of phrases is provided on the reverse faces of the holder and card. The card may be formed from a sheet folded in two (Figs. 8-13, not shown); by this means, four foreign languages can be presented.
Patent GB-925858-A (GB)
Title: Process for the production of silicon-containing polymers of olefines
Inventor: BONITZ ECKHARD
IPC: C08F10/00
Filed: 1961-11-17
Abstract: Polymers of olefins which contain silicon atoms in the polymer chain are produced by polymerizing an olefin under an otherwise conventional high or low pressure process, in the presence of a compound containing one or more Si-Si linkages per molecule but not containing any unsaturated polymerizable group and optionally containing halogen or organic radicals.  Examples of said Si-Si compounds are Si10Cl18, Si10Cl20H2 Si2H6, Si3H8, Si2Cl6, Si2Br6, [SiBr]x, [SiBr2]x, [SiH2]x, [Si(OC2H5)2]x, [Si(OCH3)2]x, [Si(CH3)2]6, [-Si(C2H5)Cl-]x, (CH3)3Si-Si(CH3)3, Si#jBr2-Si#jBr2, [-Si(CH3)2-]x, [-Si(C2H5)2-]x and Si(CH3)H2-Si(CH3)2H, wherein x is an integer greater than 2.  Ethylene, propylene and butene are the specified olefins and in the examples the following catalysts are used: (1) TiCl3+ Et2AlCl in methyl trichlorsilane, (2) AlCl3 in cyclohexane, (3) AlBr3 in cyclohexane, (4) azodiisobutyronitrile in heptane, and (5) ethylaluminium sesquichloride in octane.  The products may be oils, waxes or thermoplastic solids.
Patent GB-878420-A (GB)
Title: Improvements in or relating to under water echo-sounding apparatus
IPC: G01S1/72
Filed: 1958-12-22
Abstract: 878,420. Subaqueous signalling. ELECTROACUSTIC G.m.b.H. Dec. 22, 1958 [March 11, 1958], No. 41336/58. Drawings to Specification. Class 118. [Also in Groups XXI and XL (c)] Apparatus carried by or strapped to a diver, or incorporated in his helmet, includes a complete ultrasonic echo sounding equipment (see Group XL (c)) which may be keyed for communication with the parent ship or other divers; in the embodiment wherein the equipment is in the diver's helmet a microphone may be included for telephonic communication.