baber/WOPTO huggingface dataset:
Patent GB-1447374-A (GB)
Title: Arc welding
IPC: B23K9/073
Filed: 1973-08-23
Abstract: 1447374 Welding by fusion UNION CARBIDE CORP 23 Aug 1973 [24 Aug 1972] 39965/73 Heading B3R [Also in Division H2] A method of arc welding, in which an electrode E is advanced towards a workpiece W such that upon contact of the electrode and the workpiece a short circuit surge current flows, comprises reducing the short circuit current to a value below the surge current level, monitoring the short circuit time interval, generating a reference time signal at a predetermined time after the beginning of each short circuit time interval, increasing the welding current in response to detection of the reference signal during a short circuit time interval and reducing the welding current on termination of the short circuit. The apparatus for performing the method, which reduces spatter, includes a detector circuit 22 which supplies a pulse to circuits 28, 30 at each arc-to-short circuit transition and a pulse to circuits 32, 34 at each short circuit-to-arc transition. On detection of a short circuit, the output pulse from the circuit 22 opens a switch 51, which may be a thyristor, to insert a resistor Rs in the welding circuit. The pulse also starts the circuit 28 which comprises a timer in the form of a multivibrator the period of which is adjustable by a control 61. If the short circuit has not cleared within the reference time set by the control 61, the timer circuit 28 closes the switch 51 so that the current provided by the supply 20 rises sharply until the short is broken. On clearance of the short, an arc is established and if the arc persists beyond an interval set by the timer circuit 34, the circuit 32 inserts a resistance R A  in the welding circuit. The decrease in current causes the recurrence of the short circuit condition. Transistor circuits may be used to control the current and voltage levels,
Patent GB-1536504-A (GB)
Title: Display apparatus
IPC: A47F7/24
Filed: 1976-09-27
Abstract: 1536504 Clothes hangers JOHN THOMAS BATTS Inc 27 Sept 1976 [11 Dec 1975] 39994/76 Heading A4U [Also in Division G5]  Display apparatus for suspending hook supported article hangers comprises a rod 12 having in its surface spaced channels 20 which are parallel and are inclined to the longitudinal axis of the rod. The channels 20 are provided on opposed sides of the rod 12 to leave diametrically opposed smooth surfaces between the channels, and the rod may be rotated either manually or by a motor to shift the hangers from one set of the channels 20 to the opposed set.
Patent GB-968150-A (GB)
Title: Improvements in or relating to devices for conveying cuttings from machine tools
IPC: B65G25/00
Filed: 1960-11-23
Abstract: 968,150. Conveying cuttings from machine tools. REGIE NATIONALE DES USINES RENAULT. Nov. 23, 1960 [Nov. 27, 1959], No. 40282/60. Heading B8A. Cuttings from a machine tool are fed along trough 1 by a reciprocating conveyer 50. The conveyer has sections 5 carrying spurs 13 and 12 which engage the cuttings, the sections being formed hollow so as to be guided by a fixed internal guide 2 secured to the trough. The conveyer, as it reciprocates, is enabled to traverse a bend in the trough 1 by the provision of links 7 which connect the sections 5, the links being pivotally connected to the sections to allow articulation thereof.
Patent GB-903617-A (GB)
Title: Improvements in or relating to transmission media for electromagnetic wave energy inthe circular electric mode
IPC: H01P3/13
Filed: 1960-12-14
Abstract: 903,617. Waveguides. WESTERN ELECTRIC CO. Inc. Dec. 14, 1960 [Dec. 29, 1959], No. 43012/60. Class 40 (8). A waveguide for transmission of H 01  wave energy comprises a conductive helix surrounded by a medium having greater conductivity in the longitudinal than in the circumferential direction. The helix 21 is made from wire having high surface conductivity and the turns are spaced from each other by a distance smaller than the diameter of the wire, e.g. by the thickness of an insulative coating on the wire. In the first embodiment (Fig. 2), the helix is surrounded by a cage of longitudinal conductors 23 insulated from each other and from the helix, e.g. by a coating of insulative material. The cage is surrounded by a jacket 25 of lossless or lossy dielectric material, e.g. a carbon-loaded plastic, glass fibres coated with tin oxide or carbon-coated paper or string. In the modification of Fig. 3, the helix is surrounded by a number of conductors 34 wound into a spiral of wide pitch (α < 27 degrees and usually is about one or two degrees). Each wire is coated with lossy dielectric material. In a further modification (Fig. 4, not shown), the helix is surrounded by a dielectric jacket of resin-impregnated fibre glass in which longitudinal conductors are randomly disposed. Specifications 764,737, 855,026, 890,799 and 890,800 are referred to.
Patent GB-1415893-A (GB)
Title: Smoking material
IPC: A24B15/16
Filed: 1972-08-31
Abstract: 1415893 Tobacco substitutes IMPERIAL CHEMICAL INDUSTRIES LTD 23 July 1973 [31 Aug 1972] 40324/72 Heading A2C [Also in Division C3] Tobacco substitutes are made by subjecting carbohydrate material to a catalysed thermal degradation at a temperature above 250C until the weight of solid residue is from 50 to 90%of the weight of the original carbohydrate material. The carbohydrate material may be cellulose or starch and preferred catalysts are strong acids or salts of a strong acid and a weak base. The thermally degraded carbohydrate may be extruded as a filament on a tape and subsequently shredded to form tobacco-simulated material. Nicotine, organic esters, essential oils, menthol, tonka bean or vanillin may be added as may be glycerol and glycols as humectants and inorganic salts to induce commercially acceptable burning rates.
Patent GB-995197-A (GB)
Title: Improvements in or relating to friction bodies
IPC: F16D69/02
Filed: 1961-11-10
Abstract: The invention is a Patent of Addition to 906,358 and comprises ceramic friction bodies produced from mixtures containing in each 100 parts by weight of inorganic fibres, 0-60 parts of glass frit or glass formers, having a low melting temperature, 0-70 parts of metal powders and/or metal oxide powder mixture and up to 30 parts by weight of sulphur and/or an unstable sulphur compound, the last constituent being obligatory and at least one of the two optional constituents being present.  The mixture is fired at 550-560 DEG  C. and may be moulded under a pressure of about 1000 atmospheres before or during the heating process.  Optionally a part of the sulphur or unstable sulphur compound may be replaced by a stable sulphide, graphite and/or a nitride which constituents are used in the parent case.  Specification 995,198 also is referred to.ALSO:The invention is a Patent of Addition to 906,358 and comprises ceramic friction bodies produced from mixtures containing in each 100 parts 10-80 parts by weight of inorganic fibres, 0-60 parts of glass frit or glass formers having a low melting temperature, 0-70 parts of metal powders and/or metal oxide powder mixture and up to 30 parts by weight of sulphur and/or an unstable sulphur compound, the last constituent being obligatory and at least one of the two optional constituents being present.  The mixture is fired at 550-560  DEG C. and may be moulded under a pressure of about 1000 atmospheres before or during the heating process. Optionally a part of the sulphur or unstable sulphur compound may be replaced by a stable sulphide, graphite and/or a nitride which constituents are used in the parent case.  Specification 995,198 also is referred to.
Patent GB-1399108-A (GB)
Title: Basically substituted alkyltheophyline derivatives
IPC: C10G45/48
Filed: 1972-08-31
Abstract: 1399108 Jet fuels LUMMUS CO 31 Aug 1972 [2 Sept 1971] 40480/72 Heading C5E A petroleum feed boiling in the range 135 to 550 F. is passed from line 43 to 46 through a  catalyst bed 16 at 250-575 F. in admixture with a cocurrent of hydrogen. The liquid effluent from the bed 16 is then contacted at 200- 500 F. with a counter-current 48 of hydrogen in the catalyst bed 18 to produce a stream 50 of jet fuel. The gaseous effluents from the zones 16 and 18, comprising hydrogen and normally liquid hydrocarbons are cooled at 52, 30 and 32 and separated at 34 into a stream 36 of recycle hydrogen and a liquid stream 44 which is recycled. The catalysts used can be Raney nickel or Ni, Pt or Pd on alumina, silica, kieselguhr, diatomaceous earth, magnesia or zirconia. Suitable feeds are hydrodesulphurized straight-run kerosene, light and heavy naphthas, catalytically cracked cycle oil and furnace oil. The jet fuel produced can have an aromatics content of below 1À5 vol per cent.
Patent GB-1281004-A (GB)
Title: Transducers
Inventor: BAKER BERNARD STUART
IPC: G01D5/20
Filed: 1968-08-26
Abstract: 1281004 Measuring force electrically COURTAULDS Ltd 25 Aug 1969 [26 Aug 1968] 40605/68 Heading G1N In a force balancing arrangement for measuring the displacement of a lever by restoring it to its balance position electromagnetically, wherein the lever is attached to a coil 9 Fig. 1, located in the gap 8 of a permanent magnet 5, 6, 7 and a measured current is fed to coil 9 to restore balance, the distortion of the main magnetic field by that produced by the current in coil 9 is eliminated by a proportional current through a compensating winding 10. The magnet may be an electromagnet and the compensating current algebraically added to the magnetizing current.
Patent GB-1067675-A (GB)
Title: Improvements relating to electrical filter networks
Inventor: FRANKLIN DONALD PETER
IPC: G06G7/184
Filed: 1962-10-27
Abstract: 1,067,675. Electrical analogue calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 28, 1963 [Oct. 27, 1962], No. 40700/62. Heading G4G. A differentiator or integrator comprises an inductor or capacitor 6 alternately switched from input terminals 1, 2 to a further inductor or capacitor 5, the switching rate being adjustable so as to adjust the effective time constant of the circuit. Output terminals 3, 4 are connected as shown for differentiation, or across 5 when used as an integrator. Electronic switches may be employed.
Patent GB-1034527-A (GB)
Title: Collecting filaments or yarns
Inventor: FOX CYRIL
IPC: B65H67/048
Filed: 1963-10-16
Abstract: The invention is concerned with a continuous winding machine of the kind in which when a package 29, Fig. 2, (not shown), is to be doffed a frame 13 rotates to remove the package 29 from, and move the next empty bobbin 181 into, an operative relationship with the bobbin driving means, for example a drive roll 26.  The invention is characterized by the inclusion of means that ensure that the completed package shall not unwind at least until the yarn is broken between the completed package 29 and the empty bobbin 181.  As described this is achieved by mounting each bobbin on its shaft with intermediate unidirectional means 17 (Fig. 1, not shown) that prevent the bobbins from rotating backwards on their shafts.  As a package 29 increases in diameter the frame 13 rises about the pivot 28.  When the package 29 is to be doffed the piston 47 moves the toothed rack 45 to the left causing the cam 41 to rotate about axle 36.  As the cam 41 bears against a fixed member 43 the frame 13 is forced to rise and so lift the package 29 off the drive roll 26.  The piston 47 then moves the rack 45 to the right and this time a unidirectional device 42 couples the cam 41 to the shaft 36 so that the frame 13 is caused to rotate and, because the cam 41 rests on the fixed member 43, the frame 13 is lowered thus bringing the empty bobbin 181 into engagement with the drive roll 26.  One end of each bobbin fits in an annular member 22 the outer surface of each of which is covered with a roughened material. When the new bobbin 181 has been moved to the winding position a yarn traversing member moves the yarn on to the roughened surface 22 that grips the yarn and causes it to be wound up.  Since the package 29 cannot rotate backwards the yarn length between the package 29 and the new bobbin 181 breaks and the traversing device then feeds the yarn on to the new bobbin 181.
Patent GB-950439-A (GB)
Title: Electron-gun assembly for cathode-ray signal-storage tubes
IPC: H01J31/18
Filed: 1962-10-29
Abstract: 950,439. Cathode-ray storage tubes. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Oct. 29, 1962 [Nov. 13, 1961], No. 40828/62. Heading H1D. The deflection plates 12, 13 of a direct view cathode-ray signal storage tube 10 are electrically shielded from the flood-gun electron stream by the accelerating electrode 21 of the writing gun, which electrode supports the elements 17 ... 20 of this gun comprising respectively the cathode unit, first and second anodes and a focusing electrode. The flood gun cathode unit 22 is positioned axially approximately coincident with the electrode 21 but is insulated therefrom. The flood gun also includes an accelerating electrode 23 and the gun elements may be supported by either of the electrodes 21, 23 but are insulated from both. Electrodes 21, 23 comprise conductive discs  having aligned windows 21a, 22a to pass the writing gun beam. The storage grid 14 comprises wire mesh having a dielectric coating 14a, and the tube 10 further includes a fluorescent screen 15 with a metallic coating 16, and a collector electrode 9. A schematic representation of the apparatus of Fig. 1 is also described, Fig. 2 (not shown).
Patent GB-1071631-A (GB)
Title: Improvements in or relating to rotary printing machines
IPC: B65H23/06
Filed: 1964-10-07
Abstract: 1,071,631. Feeding webs. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. Oct. 7, 1964 [Oct. 12, 1963], No. 40955/64. Heading B6B. The tension of a web 1 fed from a reel 2 of a reel star is controlled by an oscillating roller 3 pivoted on a shaft 5 carrying also a frame 6 carrying a slidable weight 7 and a link 9 controlling a slide valve 10 to regulate a pneumatic brake 11 on the reel star. In the event of considerable deflection of the roller 3 moving between stops, an electric motor 8 mounted on the weight moves the weight slidably and bypassing the valve 10, controls the brake through a further valve responsive to the lateral position of the weight.
Patent GB-1126582-A (GB)
Title: A method and a machine tool for cutting and/or treating threads of rod-shaped work pieces
Inventor: LARSSON BERTIL IVAR TORSTEN
IPC: B23G1/32
Filed: 1965-09-28
Abstract: 1,126,582. Screw-cutting and grinding SIGFRID STENBERG A.B. 28 Sept., 1965 [23 Oct., 1964], No. 41130/65. Headings B3D, B3K and B3T. A method of milling or grinding threads-on a rod 20 comprises providing a guide-screw 25 coaxial with the rod, passing the screw through a stationary nut 24 and using the screw-and-nut engagement to guide the rod axially and rotationally past a tool 11, the nut being adjustable to enable multistart threads to be cut. The machine is similar to that of Specification 1,011,157, but the nut consists of a plunger 58 which can be inserted in any of a number of bores in a mounting 56 so displacing the screw and enabling multi-start threads to be cut. In a modification, one plunger 58 is used on an indexible head. The rod and guide may be in-  tegral with one another.
Patent GB-951155-A (GB)
Title: Composite dielectric material for wires and cables
Inventor: DAWSON LESLIE NORMAN
IPC: B29C70/68
Filed: 1961-11-17
Abstract: A composite dielectric sheath for an electric conductor wire or cable comprises an inner layer of vulcanized butyl rubber bonded to an outer layer of vulcanized chlorosulphonated polyethylene. Optionally an additional layer of chlorosulphonated polyethylene is provided between the wire and the butyl rubber.  The layers may be applied to the conductor in an unvulcanized or partially vulcanized form and become bonded together during the final vulcanization. The resultant wire or cable is resistant to ozone, fire, moisture, oil and solvents.
Patent GB-974969-A (GB)
IPC: A47G9/02
Filed: 1960-12-02
Abstract: 974,969. Bed coverings. THORSTEN BRUNIUS & CO. A.B. Dec. 2, 1960 [Dec. 7, 1959], No. 41530/60. Heading A4S. A bed covering comprises a washable cover and a disposable lining of superposed thin sheets of paper, e.g. crepe paper joined along their edges. The cover may be separable on three sides for the insertion of lining units of different thicknesses.
Patent GB-1507569-A (GB)
Title: Electromagnetic two-position indicator
IPC: G08B5/22
Filed: 1975-10-14
Abstract: 1507569 Two-position indicators NORTH AMERICAN PHILIPS CORP 14 Oct 1975 [17 Oct 1974] 42031/75 Heading G4F [Also in Division H1] An indicator comprises a permanent magnet 13, which is in the position Fig. 1 when coil 15 is not energized and permanent magnets 11; when the coil is energized, Fig. 2, magnets 11 move to latch magnet 13, by shoulders 17. Resetting is by manual depression of member 12. A constructional embodiment is described, Figs. 4a, 4b (neither shown). A switch which is operated when magnets 11 move inwardly may be added, and serves to interrupt the current in a circuit in the fault condition, Figs. 5, 6 (neither shown).
Patent GB-1518058-A (GB)
Title: Process for the preparation of a particulate material comprising titanium trichloride suitable for use in the stereospecific polymerisation of alpha-olefins
IPC: C08F10/00
Filed: 1976-10-11
Abstract: 1518058 Titanium trichloride SOLVAY & CIE 11 Oct 1976 [15 Oct 1975] 42129/76 Heading C1A [Also in Division C3] Particles of TiCl 3  associated with a liquid other than water are dried to a liquid content less than 1% by weight, preferably less than 0À3%, the particles being of substantially spherical shape and comprising an agglomerate of smaller particles which are spherical and porous. The liquid associated with the particles may be an aliphatic, cyclo aliphatic or aromatic hydrocarbon, TiCl 4 , Lewis acid or Lewis base used to treat the trichloride. The starting material preferably contains at least 5% of the liquid. Drying is preferably carried out at below 90C for 0À2-48 hours at atmospheric or reduced pressure. Drying may be performed under a stream of inert gas in any appropriate apparatus but preferably in a fluidized bed. The spheres suitably have a diameter of 5-100 microns and the diameter of the smaller particles is typically 0À05-1 micron. Such particles suitably have a composition of TiCl 3 .(AlRCl 2 ) x .C y  where R is 2-6 C alkyl, C is a complexing agent comprising one or more organic compounds which contain at least one atom or group possessing at least one electron pair capable of forming a coordination bond with Ti and Al; x is less than 0À2 and y is greater than 0À009. Such particles typically have an apparent specific gravity of 0À6-1À2 kg/dm<SP>3</SP>, a surface area greater than 75 m<SP>2</SP>/g and an internal pore volume greater than 0À15 cm<SP>3</SP>/g.
Patent GB-1184560-A (GB)
Title: Improvements in or relating to Safety Brakes for Hoists and Elevators.
Inventor: ADAM JOHN FRANCIS
IPC: B66B5/24
Filed: 1966-09-23
Abstract: 1,184,560. Safety brakes for lift cages. BRITISH INSULATED CALLENDERS CONSTRUCTION CO. Ltd. 22 Sept., 1967 [23 Sept., 1966], No. 42561/66. Heading B8L. [Also in Division F2] A safety brake mounted on a cradle or hoist frame for operation on a rope 16 associated therewith has a fixed shoe 4 and a movable shoe 8 secured to a wedge 7 which co-operates with ball or roller bearings 5, 6 on spindles journalled in a brake support frame 1, 2. Pneumatic piston-cylinders 14 are actuated to act on a wedge cross pin 12 to move the brake shoe 8 in a direction so that the rope is gripped between the two shoes either by manual or automatic operation of a pneumatic control valve. The shoes can be clamped on the rope by operation of hand-wheel 21 on the threaded spindle 20, the pin 12 on the wedge moving in elongated slots of the piston-rods. After operation of the brake the pistons and wedge are returned by springs 24, 25. The bearings 5, 6 may be replaced by balls or rollers on the surface of the wedge or the surface of a support engaging the wedge. The brake can operate on the hoist cable itself or a guide rope and can be used on a guide rope for a mast, the brake in this case having two sheaves 18 which run on the rope and serve as a link between the cradle and guide rope. Both shoes may be movable.
Patent GB-918228-A (GB)
Title: Footboards for vehicles
IPC: B62J25/00
Filed: 1961-11-29
Abstract: 918,228. Footboards for motorcycles. EDOARDO BIANCHI S.p.A. Nov. 29, 1961 [June 28, 1961], No. 42680/61. Class 136(3). [Also in Group XXXII] A footboard 1 for a vehicle is principally of sheet metal and is formed with a depression 2 and with pairs of opposing tongues 3 which form a seating for a tread member 5 and extend into it respectively. The tread member 5 is of extruded rubber or plastic and is held in the depression 2 by the tongues 3 between a fixed 10 and a screw-attached 11 cover member at either end. Alternatively both of the cover members may be screwattached.
Patent GB-1159454-A (GB)
Title: Fluidic Diodes
Inventor: SIVOV FERDO ANTANASSOV
IPC: F15C1/18
Filed: 1966-09-23
Abstract: 1,159,454. Fluid regulation. BULGARSKA AKADEMIA NA NAUKITE. Sept. 23, 1966 [Sept. 23, 1965], No. 42707/66. Heading G3H. A fluid jet unit, whose working characteristics are comparable to those an electronic diode comprises two capillary tubes 1, 2 of length 1 1 , 1 2  respectively located coaxially at a distance L from each other. Fluid supplied to tube 1-at a pressure p 1  and quantity Q, enters the space of length L, is picked up by tube 2 and leaves the same having new parameters p 2  and Q 2 . If the input pressure p 1  remains below a critical value p 1 1 (see Fig. 2) then the flow in the region between the two tubes is purely laminar, whilst for values of p 1  greater than a second critical value p 1 <SP>11</SP> the flow is wholly turbulent. A gradual transition from laminar to turbulent takes place for input pressures between these two values, this transition phase being called the working region. Variations of the parameters I 1 , I 2 , d and L cause changes in the absolute value of the length and gradient of the transition region, as well as a displacement of this region in relation to the entry pressure.