baber/WOPTO huggingface dataset:
Patent GB-1115301-A (GB)
Title: Extrudable polyolefin compositions
IPC: C08L23/02
Filed: 1964-12-21
Abstract: An extrudable composition comprises a crystalline polyolefin and from 0.1 to 10% by weight of a compound of a metal of Group IIB of the Periodic Table according to Mendeleef and a homopolymer of an unsaturated organic acid or a copolymer of an unsaturated organic acid with an unsaturated ester.  Suitable polyolefins include polyethylene, polypropylene, polybutene - 1, poly - 4 - methyl - pentene - 1, and polystyrene, of which isotactic polypropylene is preferred.  Suitable acids are acrylic, crotonic, fumaric, mesaconic, and itaconic acids, and maleic acid or anhydride.  In the examples, polypropylene is mixed with zinc compounds of polyacrylic acid, a copolymer of vinyl acetate and crotonic acid, or a copolymer of methyl methacrylate and acrylic acid, or with a cadmium compound of polyacrylic acid, or with zinc oxide and a copolymer of vinyl acetate and crotonic acid.  These mixtures, either alone or with conventional additives are melt spun into fibres and the fibres are dyed with known dyestuffs.  The composition may be formed into yarns, films, fibres, tapes and other shaped articles.  A modification is mentioned in which the polymeric constituents are first shaped into articles and are then treated with a metal compound until at least the surface layers of the articles have taken up from 0.1 to 10% by weight of the compound.
Patent GB-1319008-A (GB)
Title: Electron tube with bonded external semiconductor electrode
IPC: H01J43/28
Filed: 1971-11-11
Abstract: 1319008 Glass-metal seals INTERNATIONAL STANDARD ELECTRIC CORP 11 Nov 1971 [13 Nov 1970] 52379/71 Heading C1M [Also in Division H1] An electron discharge tube is provided with an output electrode in the form of a semiconductor device 16 sealed over an aperture in one end of the envelope. The device 16 may be an NP diode with a junction 18 between two opposite conductivity type regions 20 and 22 one of which is sealed across an aperture in a nickel cobalt-iron ring 24 which is sealed at 25 to the glass envelope. In sealing N-type electrodes to the ring a nickel-nickel alloy bond may be used, whilst for sealing P-type materials a gold germanium bond may be used. The external portions of the semi-conductor are preferably hermetically sealed by an epoxy resin coating. The semi-conductor may be a transistor and may be bonded to tantalum or tungsten which may in turn be bonded to ceramic tube bodies.
Patent GB-1254356-A (GB)
Title: Induction meters
Inventor: ROUSSEAU PIERRE
IPC: G01R11/36
Filed: 1969-10-27
Abstract: 1,254,356. Induction meters. COMPAGNIE DES COMPTEURS. Oct.27, 1969 [Oct.28, 1968; June 13, 1969], No.52425/69. Heading G1Q. A three-phase induction meter comprises a single disc 9 having concentric external and internal conductive parts A, B insulated from one another, three driving electromagnet systems 1, 2, 3 spaced around the external part A of the disc, the driving systems 1, 3 being spaced from the driving system 2 by an angle greater than 90 degrees (preferably 96 degrees), and a counting mechanism 4 disposed between the driving systems 1 and 3. The arrangement reduces electromagnetic interaction between the phases. A further compensating torque may be provided by a magnetic washer 12 adjustably mounted on the shaft 13 below the disc so as to channel leakage fluxes from the voltage electromagnets through the internal part B of the disc. Braking magnets 5, 5<SP>1</SP> are positioned between driving systems 1, 2 and 2, 3.
Patent GB-1283358-A (GB)
Title: Improvements in or relating to alternating current power supply apparatus
Inventor: CUNNINGHAM MICHAEL
IPC: H03K17/13
Filed: 1968-11-05
Abstract: 1283358 Supply systems for consuming apparatus UNITED KINGDOM ATOMIC ENERGY AUTHORITY 3 Nov 1969 [5 Nov 1968] 52463/68 Heading H2H An alternating current power supply apparatus comprising a triggerable device, having high and low impedance states, in the supply circuit has a pulse generator connected to the device, means being provided to supply the pulse generator with a first signal representing a demand for power by the .apparatus and a second signal when the alternating supply passes through zero, the arrangement being such that the pulse generator is enabled by the first signal and operates to produce trigger pulses on the subsequent receipt of the second signal. A load, connected to terminals 15, 16, is supplied from an A.C. source 10, 11 by way of a pair of reverse parallel connected thyristors 12, 13, the gating signals for which are provided by a transformer T1 energized by a pulse generator 23 in the form of a pair of NOR gates 24, 25. The inputs to the pulse generator are at lines 26, 27, the input line 26 having a signal applied thereto from either terminal 31, 32, 33. The signal at 'these latter terminals represents a demand for power from the system and this signal when applied to the NOR gate 24 on line 26 puts the pulse generator 23 in a state ready for operation. The second signal input to the pulse generator which is applied at line 27 is derived from the A.C. supply 10, 11 at a point P by way of a zero crossing detector 36 which detects when the point P is at zero volts on the positive going part of each cycle of the A.C. supply, the detector output then providing a signal on line 27 which causes operation of the pulse generator to produce pulses which trigger the thyristors 12, 13. A bi-stable system comprising a pair of NOR gates 34, 42 is provided to ensure that the thyristors 12, 13 conduct for integral multiples of complete cycles of the A.C. supply 10, 11, the input signals for this bi-stable system being the power demand signal on line 37 into NOR gate 34 and the output signal from a second zero crossing detector 44 applied to line 43 into NOR gate 42. The output frequency of the pulse generator 23 may be forty times the frequency of the A.C. supply and the output pulses are fed through integrating, differentiating and amplifying circuits to the transformer T1 so as to shape the output pulses to have a mark/space ratio of less than 1/20.
Patent GB-1476658-A (GB)
Title: Surge diverters
IPC: H01T4/16
Filed: 1974-12-04
Abstract: 1476658 Surge arresters SIEMENS AG 4 Dec 1974 [21 Dec 1973] 52531/74 Heading H2H A surge diverter comprises a number of spark gap assemblies 40-43 connected in series between a high voltage line and earth, each assembly comprising a plurality of spark gaps connected in series and being immersed in a gas such as sulphur-hexafluoride, which increases the voltage at which the gaps break down relative to the voltage were the gaps immersed in air, one or more of the assemblies having connected in parallel therewith a control gap 50-52, each of which control gaps is immersed in a gas, such as nitrogen or air which decreases the voltage at which the control gap breaks down relative to the voltage were the control gaps immersed in the gas in which the assemblies 40-43 are immersed. When a voltage surge appears on the line, the control gap 52 breaks down causing break down of the assembly 43. The control gap 51 then breaks down and thereafter assembly 42, control gap 50, assembly 41 and assembly 40 break down in that order so as to divert the voltage surge to earth. Resistors 54-56 serve to limit the current flow in the control gaps 50-52 and the resistors 46-49 which may be non-linear and voltage dependent form voltage grading resistors. The assemblies 40-43 may be provided with magnetic blow-out devices and may alternatively be immersed in a gas such as carbontetrachloride or carbon tetrafluoride which gas may be under a pressure of from 1 to 5 bars. The electrodes 60, 61 of the control gaps may be formed as Ragowski electrodes and may be associated with a radio-active element 62 to pre-ionize the electrode gap. The element 62 may include an isotope of boron, carbon on silicon and pre-ionization may be assisted by a trace of tritium gas.
Patent GB-1478461-A (GB)
Title: Carpet shampooing device
IPC: A47L11/40
Filed: 1973-11-13
Abstract: 1478461 Carpet shampooing devices PRESTIGE GROUP Ltd 1 Nov 1974 [13 Nov 1973] 52717/73 Heading A4F A carpet shampooing device comprises a flexible endless permeable band 35 extending around sponge or other resilient absorbent rollers 31, 33 and arranged to contact the carpet over which the device is moved, and means for supplying detergent to the band and/or rollers. The band 35 is of plastics mesh with rectangular openings 36 Fig. 1. The spindle 30 of the rear roller 33 is mounted in inclined slots 34 in end plates 6 so that when the device is not resting on a supporting surface the roller 33 falls to slacken the band 35 to relieve pressure on the rollers 31, 33. Detergent is supplied to the band 35 and rollers 31, 33 by a valve device Fig. 3, and the generated foam is applied to the carpet by front and rear rows of bristles 41. The valve comprises a capsule 15 connected by a tube 18 to a flexible air filled chamber (27) Fig. 4 (not shown) on the handle, which is compressible by a button (25), operated by the thumb, to expand the capsule. Such expansion against the bias of a spring 17 raises the valve disc 12 permitting liquid to flow through an aperture 14 into a trough 8 from which it discharges on to the rollers 31, 33 through holes 42.
Patent GB-1287424-A (GB)
Title: Process for producing oriented magnetic steel plates low in the iron loss
IPC: C21D1/70
Filed: 1969-10-30
Abstract: 1287424 Oriented magnetic steel NIPPON STEEL CORP 30 Oct 1969 [1 Nov 1968 10 Dec 1968] 53128/69 Headings C7A and C7N Steel containing less than 4% by weight of silicon and less than 0À065% of acid-soluble aluminium is subjected to a sequence of hot and cold rolling and annealing, followed by a final anneal using a separating agent containing boron or a boron compound in an amount of 0À01 to 2% by weight calculated as boron. Additionally the separator may contain 0À05 to 5% by weight of sulphur or selenium, either elementally or as a compound.
Patent GB-1423152-A (GB)
Title: Method of and device for providing a web of packaging material with a tear strip
IPC: H01J43/04
Filed: 1972-11-17
Abstract: 1423152 Applying tear strips to webs A SCHMERMUND 25 Oct 1973 [17 Nov 1972] 53143/72 Heading B8C A web of packaging material 19 is provided with a tear strip 18a by longitudinally perforating or slitting the web 19, cutting a tear strip 18a from a web of tear strip material 18 and placing the tear strip 18a on the web 19 to overlie the perforated -or slit zone, applying suction to the undersurface of the web 19 to hold the tear strip 18a in position and bonding the tear strip 18a to the web 19. The perforations may comprise pin holes in one or two rows or linear slits, I-shaped incisions, U-shaped incisions or circular apertures. Alternatively, the web may be continuously slit. The perforations are formed by co-operating rotary members 10, 11 which may be incorporated in web feed rollers. The tear strip web may be cut by a vertically reciprocable member 1 co-operable with a stationary member 2 over which the tear strip material web 18 is fed by rollers (6, 7, Fig. 2). Suction retains the cut tear strip on the reciprocatable member 1 until it has been applied to the packaging material web 19. In an alternative embodiment a roller knife may be used to cut the tear strip material web. The packaging material web 19 is held by suction against an air permeable belt or belts 21. As shown in Fig. 1, the combined web 19 and tearstrip 18a is conveyed between the belt 21 and a heat-resistant belt 22 past an electrical heater 20 which welds the tear stip 18a to the web 19. The belts 21 and 22 are of polytetrafluorethylene. In an alternative embodiment adhesive is applied to the tear strip.
Patent GB-1527950-A (GB)
Title: Methods of shifting a system which is movable relative to a carrier for recorded information and arrangements for putting the method into effect
IPC: G11B21/10
Filed: 1976-12-20
Abstract: 1527950 Positioning magnetic read/write heads COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE CII-HONEYWELL BULL 20 Dec 1976 [24 Dec 1975] 53199/76 Headings G2-3 A control system positions transducers, e.g. a set of magnetic read/write heads, for the disc memory of a data processing system. The disc is divided into radially extending sectors each sector having a radially extending address zone so that each sector track has a corresponding ad- - dress zone Figs. 2a-2d (not shown).  A head is moved between desired tracks using a voice coil type motor which is operated in the socalled bang-bang mode i.e. there is an acceleration phase followed by a deceleration phase, the phases being effected by applying motor currents in opposite directions Figs. 1a-1c (not shown). In order to find when the transition between acceleration and deceleration should occur the address AD B  of the desired head position is entered in register R in a weighted binary code. The actual head address AD A  is read by transducer T in a Gray code, converted to a weighted binary code in unit TRANSCOD, and any address ambiguities are resolved by circuit CIRCADEX. The equation AD B -AD A /2 is calculated by unit INV to give the transition point. This is compared with the actual moving head position in unit COMP to cause the head motor M to make the transition at the calculated point. When the decelerated head speed is below a minimum threshold the head is servo controlled into its final position. The address at the final position is then checked and, if it is not the desired one, the procedure is repeated.
Patent GB-1321857-A (GB)
Title: Multivibrators
IPC: H03K3/284
Filed: 1970-09-11
Abstract: 1321857 Transistor multivibrators GENERAL ELECTRIC CO 11 Sept 1970 [15 Sept 1969] 43537/70 Heading H3T A clock pulse train is derived from a received digital data stream by a first monostable circuit, such as Q1, Q2, with a time constant somewhat less than a clock pulse cycle period, and a second monostable circuit, such as Q2, Q3, with a time constant equal to the length of a clock pulse. A differentiator 10 pulses the base of Q1 for each leading and trailing edge of the received data waveform (Fig. 3, not shown) and cuts off normally conducting Q1 allowing Q2 to conduct and C3 to charge; normally conducting Q3 being cut off by Q2 at this time. Q2 is cut off for the length of a clock pulse by the time constant C4, R10 and provides the derived clock pulse train. The time constant of C3 charging over R5 is set at about threequarters of a clock cycle period after which Q1 conducts again and cuts off Q2 to discharge C3. For as long as C3 is charging the input is isolated from the base of Q1, spurious input during this period being ignored and it being ensured that the circuit responds to differentials of the received data only once in each clock pulse cycle. The received digital data may be put in synchronism with the derived clock pulse train by applying it, after a fixed delay, as set input to a bi-stable, the trigger input of which is driven by the clock pulses, Fig. 1, not shown.
Patent GB-1244346-A (GB)
Title: Detergent bars
IPC: C11D3/02
Filed: 1968-11-12
Abstract: 1,244,346. Detergent bars. COLGATE. PALMOLIVE CO. 12 Nov., 1968 [13 Nov., 1967], No. 53602/68. Heading C5D. A detergent bar comprises a blend of a puffed, water-soluble, hydratable, alkaline detergent salt and a bar-forming detergent. The puffed salt may be borax, granular sodium silicate, hydrated pentasodium tripolyphosphate, hydrated sodium carbonate or hydrated potassium carbonate. The puffed salt is prepared by heating the hydrated salt to 200-425 C. and passing hot air through the molten salt. The bars may be ordinary toilet soap bars or tablets; synthetic detergent toilet bars or tablets made from anionic detergents, e.g. cocomonoglyceryl sulphates, or from mixtures of synthetic detergents with soap, laundry bars containing a builder salt, e.g. pentasodium tripolyphosphate or trisodium nitrilotriacetate, and starch; and aerated detergent bars. The ingredients are mixed and fed to the hopper of the intensive sheaving and extruding device of Specification 1,155,725 while water, and if desired, air under pressure is fed to its interior. Preferably, the period of time from the initial addition of the water to the puffed salt and detergent blend is less than 10 minutes. In examples, the dry blend is (a) toilet soap chips, puffed borax, titanium dioxide (pigment) and sodium silicate (builder); (b) toilet soap chips, sodium alkyl benzene sulphonate, puffed borax and sodium silicate; or (c) soda ash, pentasodium tripolyphosphate, soap chips, puffed borax, titanium dioxide; and a detergent laundry bar containing a sulphate detergent is prepared by mixing the dry blend with an acid mix containing tridecyl benzene sulphonic acid and sulphonic acid.
Patent GB-1144795-A (GB)
Title: Improvements in energy-absorbing waveguide devices
IPC: H01P1/26
Filed: 1966-12-01
Abstract: 1,144,795. Microwave heating. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 Dec., 1966 [4 Dec., 1965], No. 53859/66. Heading H5H. [Also in Division H1] Honey to be heated is passed through a dielectric tube 12, 14, 16 which is mounted in a waveguide and projects at one end through the short-circuited end 4 of the guide, and at the other end through the bend 22 which connects to a supply waveguide 21. The tube diameter is tapered over section 14 in such a manner as to provide a good impedance match over a wide frequency range, with consequent uniform heating of the honey (see Division H1).
Patent GB-1176677-A (GB)
Title: Improvements in and relating to Support Panels for Supporting Electrical Components.
IPC: H05K9/00
Filed: 1967-11-28
Abstract: 1,176,677. Electric couplings. INTERNATIONAL BUSINESS MACHINES CORP. 28 Nov., 1967 [30 Dec., 1966(2)], No. 54003/67. Heading H2E. [Also in Division H1] A panel 10, e.g. in a computer for supporting electrical components, e.g. 26, comprises at least one insulating board 12, 16 and an imperforate resilient sheet 14, e.g. of silicone rubber; wires 36 being pushed through selected pairs of drilled holes 24, 24<SP>1</SP> in the boards 12, 16 and puncturing the sheet 14 to be frictionally retained thereby. Bared ends 40 of wires 36 are wrapped around or soldered to terminal pins 22 which engage circuitry of the component 26. The system is grounded and the wires shielded by coating intermediate portions thereof with metal. For this purpose an open, rectangular frame 28 defines a well which may be filled with molten metal. The metal is left as a solid mass or tipped out to leave a thin coating 48 on the wires around which plastics potting 50 is applied. Alternatively, the wires may merely be dipped into molten metal. Various suitable metals are named.
Patent GB-1400438-A (GB)
Title: Polymerisation process
IPC: C08F4/42
Filed: 1971-11-22
Abstract: 1400438 Continuous olefin polymerization IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Nov 1972 [22 Nov 1971] 54119/71 Heading C3P Copolymers of ethylene and C 3 -C 10  α- olefins, optionally with a non-conjugated diene, are produced by continuously introducing ethylene, a liquid C 2 -C 10  α-olefin, optionally said diene, and a catalyst slurry to a polymerization zone where they are continuously reacted to produce a slurry of copolymer particles suspended in the α-olefin which slurry containing any unreacted ethylene and optional diene is continuously removed from said zone, continuously separating the copolymer particles from the liquid α-olefin, unreacted ethylene and optional diene and recycling the α-olefin to the polymerization zone. The catalyst slurry is a suspension in a liquid inert hydrocarbon of the catalyst claimed in Specification 1,314,828 which is the product of reacting a substantially inert matrix which has surface hydroxyl groups but which is free of adsorbed water and a transition metal complex R m MX p  where M is a Group IVA to VIA transition metal, R is a hydrocarbon or substituted hydrocarbon group, X is a singly charged anionic ligand or monodentate neutral ligand, m and p are integers, m having a value from 2 to the highest valency of M and p having a value from 0, to 2 less than the valency of M except when M is a Group VIA metal when p is always 0. The matrix may be silica, alumina or mixtures thereof. The separation may be done using a centrifuge, a thin film contact dryer, a spray dryer or a pressure filter. The Specification lists many suitable non-conjugated dienes including 1,4-hexadiene, 5-ethylidene (or methylene isopropenyl or 1-propenyl) or 2-norbornene, 1,4 - endomethylene - 6 - methylhexahydronaphthalene and dicyclopentadiene. In the examples ethylene and propylene with and without 5-ethylidene-2-norbornene are continuously copolymerized in the presence of hydrogen using as a catalyst a slurry of the reaction product of zirconium tetrakis (trimethylsilylmethylene and alumina in propane.
Patent GB-544168-A (GB)
Abstract: 544,168. Liquid level indicators. SIMMONDS DEVELOPMENT CORPORATION, Ltd. Nov. 30, 1940, No. 17094. Convention date, Nov. 20, 1939. [Class 40 (i)], [Also in Group XXXVI] A current responsive instrument comprises a diametrically magnetized cylindrical .permanent magnet 10 mounted in the bore of a cylindrical metal damping member 12 in which are mounted two coils 32 having their flux axes at right angles to the axis of rotation of the magnet 10 and being connected in a bridge circuit which includes a rheostat the sliding member of which is connected to a float in the liquid. A magnetic shield 14 may be diametrically magnetized.
Patent GB-1293236-A (GB)
Title: Foldable closure
Inventor: LABELLE HENRI MARCEL ROBERT
IPC: E06B3/48
Filed: 1970-11-16
Abstract: 1293236 Folding closure DYNAFLAIR CORP Ltd 16 Nov 1970 54469/70 Heading EIJ A protective slidable folding grille type closure comprises a foldable curtain 1 constituted by a plurality of support rods 81 and a plurality of panels 87 each having tubular sections 97 along opposite vertical sides and mounted on the rods 81 to form an open pattern as shown in Fig. 1, the curtain panels being suspended by selected rods 81 from an extensible hinge 15 and hangers 65 slidable along an overhead track 17, one vertical side of the curtain being connected to a fixed frame member 9, and the other vertical side being connected to a movable frame member 21 which is suspended from a hanger. The hinge 15 (Fig. 9, not shown) comprises a chain of links 31 connected at their ends by pivot pins 33 and secondary hinges each comprising a pair of links 34 joined at one end by a pivot pin 36, the free end of each link 34 being pivoted to the centre of respective links 31. The secondary hinges each comprising a pair of of the links 31 so that the extensible hinge and hence the closure can open or close along a straight or curved path. A strengthening intermediate frame member (Fig. 14, not shown) similar to the movable frame member 21 may be povided. The movable member such as 21 is fitted with a locking device and the intermediate member may be provided with a vertically operable stop (211, Fig. 13) cooperating with a hole (205) in the floor.
Patent GB-1497070-A (GB)
Title: Window frame
IPC: E06B7/23
Filed: 1974-12-18
Abstract: 1497070 Windows CHINA STEEL WORKS Ltd 12 Dec 1975 [18 Dec 1974] 54677/74 Heading E1J A window frame assembly comprises fixed and movable parts 1, 3 which define a cavity 13 when closed together, grooves 9, 10 in the parts receiving strips to seal the cavity. The parts are L-shaped and the grooves are in thickened ends of limbs 5, 7. Further limbs 15, 16 abut the wall and pane 4.
Patent GB-1164499-A (GB)
Title: A Process for the Manufacture of Benzdiaz[1,4]Epine Derivatives
IPC: C07D243/28
Filed: 1966-12-08
Abstract: 1,164,499. Benzodiazepine derivatives preparation. F. HOFFMANN-LA ROCHE & CO. A.G. 8 Dec., 1966 [9 Dec., 1965], No. 54953/66. Heading C2C. Compounds of the general formula (R,R<SP>1</SP>=halogen, NO 2 , CF 3 , C 1-7  alkyl; R<SP>2</SP>= halogen; R<SP>3</SP>=C 1-7  alkyl, C 3-6  cycloalkyl, (C 3-6  cycloalkyl)-(C 1-7  alkyl); R<SP>4</SP>=C 1-7  alkyl; broken lines denote optional substituents), are prepared by reacting a compound of the formula with a compound of the formula (X,Y=halogen) in the presence of a base.