baber/WOPTO huggingface dataset:
Patent GB-1383180-A (GB)
Title: Gas blast circuit-breakers having cooperating tubular contact members
IPC: H01H33/12
Filed: 1972-09-04
Abstract: 1383180 Gas-blast circuit-breakers COQ NV 4 Sept 1972 [7 Sept 1971] 40975/72 Heading H1N A gas-blast circuit-breaker has relatively movable co-operating coaxial tubular contacts which are provided with axial slots dividing one contact into rigid fingers 4 and the other contact into resilient fingers 13, the rigid fingers being stepped and the resilient fingers being provided inwardly directed contact blocks 14 so that as the circuit-breaker is opened, the current path consists of three axial portions 10, 4, 13 interconnected by radial portions 8, 14. The middle portion 4 is nearest the axis of the circuit-breaker so that the magnetic forces set up cause the arc to move on to arcing electrodes 22, 23. Main current-carrying contact fingers 21 separate from the fingers 13 before the arc is drawn between the fingers 4, 13. The contacts may be provided with outer sleeves 26, 27 which act as a valve.
Patent GB-1150947-A (GB)
Title: Production of Magnetic Recording Media
Inventor: WILHELM HANS
IPC: G11B5/702
Filed: 1966-09-14
Abstract: 1,150,947. Magnetic compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 Sept., 1966 [15 Sept., 1965], No. 40984/66. Heading H1H. In the production of magnetic recording media by applying a suspension of ferromagnetic powder in a solution of a binder on to a backing, the binder comprises a mixture of a polyamide and a monomer having at least two double bonds, which is polymerized in situ by irradiation, heat, or ozone. The monomer is preferably acrylic, and may be N,N<SP>1</SP>-methylene, ethylene, trimethylene, hexamethylene, or p,p-diaminocyclohexylmethane, -bis-acrylamide or -methacrylamide; or an acrylate or methacrylate of glycol, propylene glycol, butanediol, pentanediol, hexanediol, glycerol, trimethylol propane, pentaerythritol, or cyclic polyols. Suitable polyamides, solvents, initiators, plasticizers, and bases are listed. Polymerization may be effected (before, during, or after drying) with I.R., visible, or U.V. radiation, heated rollers, dryers, α, #, or γ rays, passage of O 3  produced by electric discharge. Monomers having one double bond may also be incorporated with the binder. The wt. ratio of powder: binder may be 2: 1 to 6: 1, and the powder may be Fe 3 O 4 , acicular γ- Fe 2 O 3 , or Fe.
Patent GB-1206360-A (GB)
Title: Method and cleaning head assembly for cleaning carpets and rugs
Inventor: WISDOM WILLIAM HAROLD
IPC: A47L11/34
Filed: 1968-08-28
Abstract: 1,206,360. Cleaning floor coverings. W. H. WISDOM. 28 Aug., 1968 [11 March, 1968], No. 41009/68. Addition to 1,199,178. Heading A4F. The carpet and rug cleaning apparatus described in the parent specification is modified by the provision of an additional heater, preferably comprising electric heating elements, for heating the suction nozzle.
Patent GB-1117169-A (GB)
Title: Improvements in or relating to non-return valves for use with pressurized fluid-filled containers
IPC: F16K15/06
Filed: 1966-09-15
Abstract: 1,117,169. Pipe couplings. PIRELLI S.p.A. 15 Sept., 1966 [23 Feb., 1966], No. 41257/66. Heading F2G. In a coupling for connecting a pipe 19 to a housing 13 attached to a container A used in connection with de-gassing and impregnation of oil-filled electric cables, a valve opened by the action of connecting the pipe consists of a sealing disc 11 integral with a plurality of stems 14 slidable in the bore 15 of the housing. As shown, two stems of rectangular or circular, segmental cross-section and diametrically disposed have projections 16 for location in an enlargement 17 of the bore 15; there may be four stems arranged in the form of a cross.
Patent GB-1508963-A (GB)
Title: Elevator system
IPC: F16H55/36
Filed: 1976-10-05
Abstract: 1508963 Elevators WESTINGHOUSE ELECTRIC CORP 5 Oct 1976 [7 Oct 1975] 41266/76 Heading B8B An elevator system comprises cables 46 interconnecting an elevator car and a counterweight, and passing over a traction sheave composed of rigid segments 42 circumferentially spaced and mounted on the sheave hub 41 for independent circumferential deflection to release wear due to relative movement between the cables and sheave. The segments which are metallic, are formed with cable grooves in their radially outer surfaces and are connected to the hub 41 with a compliant material.
Patent GB-1067523-A (GB)
Title: Nuclear reactor control method and means
IPC: G21C7/02
Filed: 1963-10-18
Abstract: 1,067,523. Controlling reactors. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Oct. 18, 1963 [Oct. 18, 1962], No. 41279/63. Heading G6C. In a thermal neutron reactor, control is effected by incorporating within the core, material having a neutron resonance energy absorption value within the thermal neutron range. As the core temperature rises, with increasing reactivity, the peak of the Maxwell temperature distribution curve, for the neutrons, moves in the direction of rising temperature. The design is effected so that such a displacement moves the mean neutron energy level into the resonance absorption energy band of the incorporated control material. The neutron density falls and hence the reactivity is reduced.
Patent GB-1394185-A (GB)
Title: Electrical conductor-dielectric laminate
IPC: H01F27/32
Filed: 1972-09-06
Abstract: 1394185 Laminates ALUMINIUM CO OF AMERICA 6 Sept 1972 [10 Sept 1971] 41396/72 Heading B5N [Also in Division H1] An electrical conductor dielectric laminate comprises an elongated electrically conductive strip 16 and a dielectric web 2 bonded to the electrically conductive strip at points inwardly from the longitudinal edges thereof, the dielectric web having between the bonds and the longitudinal edges non-planar portions whereby under compression of the laminate the dielectric web expands in width to a greater width than that of the conductive strip. The electrically conductive strip may be of copper or aluminium. The dielectric web may be of corrugated construction and may consist of paper, e.g. impregnated kraft paper, polyethylene, a polyester, a vinyl homo- or copolymer, e.g. polyvinyl chloride or a polycarbonate. The two components of the laminate may be bonded by an adhesive, e.g. an epoxy resin, a polyurethane, a vinyl resin, a polyamide, paraffin wax, microcrystalline wax, natural wax, asphalt, casein, neoprene, a styrene-butadiene rubber or polyvinyl acetate. In the embodiment shown, a laminate is made by bonding two sheets by adhesive sections 18 and cut into strips. The laminate of the invention may be used in the formation of an electric coil, a compressive force being applied during winding to cause the dielectric web to extend beyond the longitudinal edges of the conductive strip.
Patent GB-894149-A (GB)
Title: Improvements in or relating to gate valves
Inventor: ANDERSON CLIFFORD ERNEST
IPC: F16K3/18
Filed: 1959-12-07
Abstract: 894,149. Valves. ACF INDUSTRIES Inc. Dec. 7, 1959, No. 41440/59. Class 135. An expanding gate valve 10 comprises recesses 16, 17 having loosely-mounted therein seat-rings 18, 19 each ring being provided with a resiliently deformable sealing member 36 which projects from the face of the ring so that upon closure of the valve the face of the ring does not contact the opposing wall of the recess. The valve closure member comprises two portions 22, 24 held together by a spring 30 so that, in operation, when the closure member is moved to the closed position shown, a projection 28 on the portion 24 abuts the valve casing and thereby causes the closure member to be expanded against the rings 18, 19 and thus compress the sealing-members 36. During the initial opening movement of the valve, as shown in Fig. 3, the pressure of the expanded closure member acting on the surface of the ring 19 is removed, thereby permitting the upstream fluid pressure to act upon that surface and so maintain a clearance in order to facilitate easy operation of the valve. In a modification, the surfaces of the rings 18, 19 in contact with the closure member are also provided with a sealing-ring. Specifications 309,711 and 702,570 are referred to.
Patent GB-1077419-A (GB)
Title: Improvements in and relating to methods of and arrangements for mass spectrometry of solids
Inventor: MAI HERMANN
IPC: H01J49/02
Filed: 1964-10-13
Abstract: 1,077,419. Mass spectrometers. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. Oct. 13, 1964. No. 41749/64. Heading H1D. A mass spectrometer has the ion recording photographic plate 1 provided with a gap or gaps to allow the most intense ion beams 3 of the solid substance under analysis to pass through to one or more Faraday cages 7 where they are electrometrically recorded. The weaker ion beams 4, 5 are thereby recorded on the plate without blackening effects which would arise if the intense ion beams were received on the plate. The Faraday cage or cages may be in the plane of the plate. A protective coating 8 against electromagnetic radiation is provided on the rear of the plate. For standardization the plate may be displaced on the magnetic field altered to allow the intense ion beams to impinge on the plate and a monitoring device consisting of two half plates may be provided between the analyser and the photographic plate for indirect measurement of the ion current. The photographic plate may be held in a cassette having one or more displaceable or removable portions of the rear wall to allow the passage of ion beams.
Patent GB-1313182-A (GB)
Title: Method and apparatus for controllably mixing reactants
IPC: G05D11/00
Filed: 1970-09-02
Abstract: 1313182 Mixing flowing liquids; polymerisation apparatus GOODYEAR TIRE & RUBBER CO 2 Sept 1970 [30 Sept 1969] 41917/70 Headings B1C and B1X In a method of and apparatus for mixing liquid reactants and escpecially for making polyurethanes the reactants are metered continuously by positive displacement pumps 2, 5 to a pressure-sensing device 9 and thence to a mixer 3 containing a labyrinth 8. The device 9 senses the pressure-differential between the supply lines and shuts down the apparatus if it exceeds a predetermined amount. If the reactants are supplied at a mixing chamber pressure of 1500-3000 p.s.i. the differential should not exceed 100 p.s.i. and the device 9 is preferably within 100 supply line diameters of the mixing chamber. The labyrinth 8 may consist of a rigid or resilient gauze of filaments such as polyethylene, polypropylene, polyesters, glass, steel or aluminium. The supply lines may have heat exchange jackets 6, 7.
Patent GB-1459814-A (GB)
Title: Head mounted display device
IPC: G02B27/00
Filed: 1975-10-15
Abstract: 1459814 Head-up displays HONEYWELL Inc 15 Oct 1975 [15 Oct 1974] 42179/75 Addition to 1438789 Heading G2J A display system e.g. for training machine control or entertainment comprises a mounting  e.g. helmet 50 for wearing on the observer's head, a paraboloidal vizor 52 held in front of the face, light emitting means e.g. CRT 54 held by the mounting above the head and a mirror 76 held by the mounting in the region of the focus of the vizor 52. Light from CRT 54 is reflected by a treated area 70 of the vizor on to the mirror 76 and then back on to another treated area 80 of the vizor before entering the eye 82.
Patent GB-1479613-A (GB)
Title: Getter pump
IPC: H01J7/18
Filed: 1974-09-30
Abstract: 1479613 Getter pumps SAES GETTERS SpA 30 Sept 1974 [1 Oct 1973] 42461/74 Heading H1D The getter pump comprises a metal layer with particles embedded therein of a non-evaporable metal getter having a given hydrogen equilibrium pressure, and a second getter element including a cohesive mass of a getter metal having a lower hydrogen equilibrium pressure. As shown in Fig. 1, the getter pump 10 consists of a high temperature part 11 and a low temperature part 12, and uses particulate Zr, Ti, Ta and Ni or alloys thereof, preferably an alloy of 84% Zr and 16% Al. In the high temperature part 11, getter particles which pass through a 100 mesh per inch screen are embedded in a ribbon 16 folded into the shape 18 shown in Fig. 5. A heater 14 comprises a wire wound on a ceramic former 19, and a current in the wire maintains the temperature of part 11 to at least 700‹ C. and preferably 1200‹ C. The low temperature part 12 is made in similar segments 24, 24<SP>1</SP>, 24<SP>11</SP> which as shown in Fig. 2 have annular channels 25 filled with getter particles and having apertures filled with getter particles connecting one channel to the next. A heater 14 consists of a winding 37 on a ceramic former 36. In operation, the pump is placed in a closed vessel containing methane, which is pumped out until the pressure falls below 10<SP>-2</SP> Torr. The high temperature part 11 is then heated to 900‹ C. and the low temperature part 12 is heated to 750‹ C., these temperatures being maintained for 15 mins. Thereafter the parts 11, 12 are maintained at 200‹ and 400‹ C. respectively. The heater 13 itself has a temperature of 1500‹ C. and will crack methane. In a modification, there is a single internal heater and the low-temperature part extends radially outwards from the heater and the high temperature part.
Patent GB-1173127-A (GB)
Title: Filled Welding Wires
IPC: B23K35/36
Filed: 1968-09-09
Abstract: 1,173,127. Welding by fusion. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Sept., 1968 [12 Sept., 1967], No. 42734/68. Heading B3R. [Also in Division C7] A filled welding wire for electric arc-welding of steel in a protective gas atmosphere, consists of an Fe based sheath containing slag forming constituents which contain 0-40% by weight zirconium dioxide and the balance consisting mainly or entirely of a mixture of zirconium silicate, potash feldspar and calcium carbonate having a composition within the area defined by A, B, C, D, E, F in the accompanying diagram where: and the slag-forming constituents form 6-10% by weight of the welding wire. The filler preferably contains 15-30% zirconium dioxide and may also contain Fe, Ni, Mo, Si, Mn or Zr.
Patent GB-1422124-A (GB)
Title: Adhesive compositions
IPC: C09J7/38
Filed: 1973-09-12
Abstract: 1422124 Coated sheet material COAL INDUSTRY (PATENTS) Ltd 5 Oct 1973 [12 Sept 1973] 42887/73 Divided out of 1422123 Heading B2E [Also in Divisions B5 and C3] A sheet, film or foil which does not contain bituminous materials is coated with a pressure sensitive adhesive composition which contains at least 30% by weight of coal tar, coal tar pitch or coal digest, 5-30% by weight of a resinous tackifier, e.g. coumarone-indene resin, aromatic hydrocarbon/formaldehyde condensation resin or cross-linked aliphatic hydrocarbon resin, at least 5% by weight of a nitrile rubber and at least 1% by weight of a styrene-butadiene random copolymer rubber, the weight ratio of nitrile rubber to styrene-butadiene random copolymer rubber being at least 2.5 to 1 and the total amount of nitrile rubber and styrene-butadiene random copolymer rubber taken together being less than 13% by weight. The composition may also contain 0.25-1 part by weight of fluxing oil or other extender for each part by weight of coal tar, coal tar pitch or coal digest and 3-40% by weight of a filler, 3-15% by weight of which based on the adhesive composition may be finely divided fibres, e.g. of cotton, polyester or polyamide. The sheet, film or foil may be of aluminium, copper, plasticised polyvinyl chloride, polyester, polyethylene or polypropylene and the adhesive composition may be applied in a thickness of at least 1mm.
Patent GB-1008978-A (GB)
Title: Polymerisation process
Inventor: LAMB JOHN ANTHONY
IPC: C08G2/00
Filed: 1963-11-01
Abstract: Formaldehyde is polymerized in the presence of a lactam as chain transfer agent.  Preferred lactams are butyrolactam and t.-caprolactam. The polymerization may take place at 0 to 60 DEG  C., in the presence of an inert liquid media and using a catalyst, e.g. alkyl amines, alkyl phosphines, alkyl arsenes, quarternary ammonium salts, organometallic compounds, Lewis acids and certain metal carboxylates, n-butyl amine and n-butyl lithium, are used in the examples as well as a mixture of zinc chloride and acetyl chloride. Specifications 796,862 and 796,863 are referred to.
Patent GB-1195853-A (GB)
Title: Improvements in or relating to Screw Conveyors
Inventor: CHRISTIAN JOSEPH DENNIS
IPC: B65G33/00
Filed: 1967-07-31
Abstract: 1,195,853. Conveyer screws. PACKAGED POWER TERMINALS Inc. 4 July, 1968 [31 July, 1967; 22 Sept., 1967], Nos. 34993/67 and 43164/67. Heading B8A. Interengaging conveyer screws 1, 2, 3, 4 (which may be hollow for cooling purposes) are rotated in alternate opposite directions by a drive applied to gear 17 which is coupled to the screws via gears 15, 16 and 18. Additionally each screw is given a longitudinal movement which is derived from clutch 30, which drives the screws in an axial movement via disc 28, pin and slot elements 31, 29, reciprocating shaft 24, rack 23 and gearing 22, 20, 19 and 21, the gears 19, 20 and 21 engaging annular grooves 12a formed on the end of the screw shafts 12. In this way, as the screws are rotated, alternate screws move backwards and forward longitudinally, and so are self-cleaning. The insertion of springs 25, 25A into the movement of rack 23 causes the screws to have a dwell at the ends of their reciprocating stroke.
Patent GB-900064-A (GB)
Title: Mechanical seal
IPC: F16J15/38
Filed: 1960-12-16
Abstract: 900,064. Stuffing-box substitutes. CRANE PACKING CO. Dec. 16, 1960 [Dec. 21, 1959], No. 43338/60. Class 122 (5). A rubbing-collar type seal used between the shaft 10 of a centrifugal pump and the pump casing 14 has the member 27 carrying the rotary sealing member 30 sealed to the shaft by two axially-spaced radially-distortable sealing members 41, 49 which are urged into sealing relation by axially-movable members 43, 51. The member 27 is in the form of a sleeve which is disposed inside a retainer 23 fixed to the shaft and has a stepped interior for receiving the means sealing it to the shaft. Springs 52 serve to urge the rotary seal member 30 which is pinned to the end of the sleeve 27 into rubbing engagement with the sealing member 17 which is pinned to the casing 14. The seal member 41 is of V-section and distorted by springs 45 housed in a ring 46 and acting through a ring 43 and O-ring 42 on the member 41. The ring 43, which is sealed in the sleeve 27 by an O-ring 55, is similarly sealed to the shaft by the V-section ring 49 which is distorted into sealing relation with the shaft by the springs 52 acting through a ring 54 and O-ring 50.
Patent GB-1085397-A (GB)
Title: A process for the preparation of substantially pure mono alkoxy and mono-cyclo alkoxy titanium tri-iodides
Inventor: SCHON NIKOLAUS
IPC: C07F7/00
Filed: 1964-10-27
Abstract: Substantially pure C1-6 monoalkoxy- or monocycloalkoxy-titanium triiodides are reacted with organo-aluminium compounds to give catalysts suitable for polymerizing butadiene-1.3.ALSO:Substantially pure C1- 16 monoalkoxy- or monocycloalkoxy-titanium triiodides are prepared by reacting titanium tetraiodide with a titanium tetraalkoxide or tetracycloalkoxide in the presence of an inert organic solvent with the exclusion of oxygen and moisture using an inert atmosphere, the reaction being carried out at 30-80 DEG  C. and the reaction time being a maximum of 150 minutes.
Patent GB-1526428-A (GB)
Title: Cursor position device
IPC: G01D5/12
Filed: 1975-10-24
Abstract: 1526428 Cathode-ray tube accessories XEROX CORP 24 Oct 1975 [16 Dec 1974] 43765/75 Heading H4T [Also in Division G1] A cursor for transmitting position signals to a display, e.g. a c.r.t. display, where they are used to generate position markers on the display, comprises a housing 2 within which is mounted a universally-rotatable sphere 16 in contact with a flat surface (not shown) over which the housing is movable; and orthogonal shafts 32, 34 responsive to movements of the sphere and coupled to transducers 50, 52 for generating the required signals. The housing 2 (not shown completely) is in the form of an inverted box with a closure member 8 having two pads (not shown) which slide on the flat surface and a circular aperture 20 which provides a resilient seating 74 for the sphere. The sphere is urged by the reaction of the flat surface into contact with a resiliently mounted roller 60 which touches the sphere at a position slightly offset from the polar position. The axle 66 of roller 60 is mounted for rotation about a vertical axis within a bearing 68. The bearing is retained within an aperture in the housing 2 by means of a spring 62. A further resiliently-mounted roller 40 urges the sphere 16 into contact with the shafts 32, 34.
Patent GB-1513583-A (GB)
Title: Frequency modulator
IPC: H03K7/06
Filed: 1975-10-27
Abstract: 1513583 Pulse frequency modulator AMPEX CORP 27 Oct 1975 [18 Nov 1974] 44178/75 Heading H4L A frequency modulator comprises a capacitor 2, charged at a rapid rate by bistable 6 when in its set state, and discharged at constant current dependent on the value of an input {video} signal until the capacitor voltage decreases to the voltage level on terminal 10 of differential comparator 5, whence the bistable 6 is reset for another cycle. Change from rapid charge, to controlled discharge, of capacitor 2, occurs when the capacitor voltage attains the value E, set out the input of differential comparator 4, the resulting pulse from the latter resetting the bistable, and, via terminal C thereof, triggering bistable 19, providing at its output Q the modulator output, at half the frequency of the pulses from comparator 4. The terminal 10 is coupled to a source of reference potential E 2  {less than E 1 } and, to control circuit 11 which functions to increase the reference level at terminal 10 in dependence on the operating cycle frequency of circuit 3, to ensure that, in spite of the finite and constant duration of the capacitor charging part of each cycle, the overall modulator frequency characteristic remains linear. The control circuit comprises a differential comparator 15 coupled to a reference potential E 3  midway between E 1  and E 2 , and via filter 13, 14 providing the extra frequency dependent voltage to terminal 10. Comparators 4,5 and 12; and bistables 6 and 19; may comprise, i.c. chips; resp. The modulator may be used in the recording of video signals on magnetic media.
Patent GB-1438133-A (GB)
Title: Rotating spectrophotometer analyzer having a device for celloc ting the contents of cuvets
IPC: G01N35/00
Filed: 1973-09-20
Abstract: 1438133 Centrifugal photometric analyzers UNION CARBIDE CORP 20 Sept 1973 [22 Sept 1972] 44205/73 Heading G1A In a photometric analyzer of the centrifugal type, liquid samples are analyzed in individual cuvets of a rotating disc, and by applying gas under pressure to the apparatus the samples can be transferred to the inner surface of a ring 50, Fig. 1, which rotates with the disc. When the apparatus subsequently slows down the transferred sample fluid 71 falls under gravity to a part of the stationary housing and is removed via tube 79. The initial transfer to the rotating ring avoids splashing which would occur if the analyzed samples were transferred to the stationary housing of the apparatus. The gas-pressure is applied via tubes 60 to the bore 64 of the rotating disc shaft. The disc 10 is shaped to receive reagents and samples, e.g. at 26, 28, which mix under centrifugal action and pass to cuvets 32 for optical analysis. When the gas-pressure is applied the sample fluid passes from regions 33 of cuvets 32 to region 71 via a tube 70, this latter having a siphon shape, Fig. 2 (not shown).