baber/WOPTO huggingface dataset:
Patent GB-220736-A (GB)
Title: Improved method of and means for supplying electrical power to railways and tramways
IPC: B60M3/04
Filed: 1923-05-31
Abstract: 220,736. Dawson, Sir P., and Fawdry, F. W. May 31, 1923. Systems, sectional conductor and mixed.-In electric railway systems wherein the supply conditions are such that the conductors b, f of adjacent sections have to be insulated from one another and separated by a neutral section a, the section a is connected to an adjacent conductor b through a switch c closed by hand or automatically upon the setting of a signal and opened automatically just before the leading collector leaves the section a. The switch c is opened by a solenoid h in a circuit g closed by a track device e, current being derived from section a through a transformer k. The switch c is also provided with an overload trip operating off a transformer d, but it is not opened by the signal returning to " danger."
Patent GB-1475812-A (GB)
Title: Heading sensors
IPC: G01C17/30
Filed: 1975-04-08
Abstract: 1475812 Magnetic heading sensor BOEING CO 8 April 1975 [17 June 1974] 14373/75 Heading G1N (Part A) A magnetic heading sensor, shown at different stages of construction in Figs. 2b to 2c, comprises a core 11 laminated of wound strip, an excitation winding 13 for taking the core in and out of magnetic saturation, two sensing windings 15 and 17 for sensing change in the earth's magnetic field in the core and two compensating windings 19, 21 each encircling two parallel legs of the core. The windings 19, 21 may be external to encapsulation 32, and are D.C. exited via potentiometers adjusted to compensate for horizontal shifts in the earth's field due to the presence of ferrous materials, e.g. when the sensor is used in a car. In a further embodiment, Fig. 3, the encapsulation is cubic in shape and a third compensating winding 53 is provided which is used to compensate for vertical field components when the axis 42 is vertical.
Patent GB-732941-A (GB)
Title: Improvements in or relating to the purification of titanium tetrachloride
IPC: C01G23/02
Filed: 1953-05-21
Abstract: Crude titanium tetrachloride is refluxed with sodium hydroxide or potassium hydroxide and sodium, magnesium, titanium or aluminium at such a temperature and for such a time as to produce by subsequent distillation a water-white titanium tetrachloride distillate. Vanadium may, if desired, be recovered from the residue in which it is present as VOCl3 and/or VCl3 by water leaching.  Suitable proportions of the hydroxide and metal respectively are 10-30 and 1.5-20 parts by weight per 1000 parts by weight of titanium tetrachloride; the time necessary is usually about 1-3 hours at the boiling point of the mixture, i.e. 134-138 DEG  C.  Colloidally suspended matter and dissolved gases may be first removed and refluxing may be assisted by agitation or by bubbling dry inert gases through the mixture.  An example is given.  The Specification states that it is known to purify titanium tetrachloride and similar tetrahalides by treatment with hydrogen sulphide, silica gel, carbon, salts of heavy metals, soya bean oil or art gum, or by treatment with powdered metal or sodium amalgam prior to distillation, or by mixing with an alkali metal hydroxide and a finely-divided metal such as zinc, iron, tin, antimony or copper.
Patent GB-543992-A (GB)
Title: Improvements in wound packages of yarn and in methods and mechanism for producing the same
IPC: B65H54/32
Filed: 1940-09-20
Abstract: 543,992. Winding yarns on to single-flange bobbins. COURTAULDS, Ltd., and WHITE, G. Sept. 20, 1940, No. 14413. [Classes 120 (ii) and 120 (iii)] A package of yarn upon a single-flange bobbin has the layers of yarn near the flanged end substantially parallel wound and the layers near the flangless end of a steep pitch winding. The traverse mechanism of the winding-machine comprises a thread guide Z actuated by a main cam A to give a slow traverse speed, and by the main cam A and an auxiliary cam T to give an accelerated traverse speed. The cam T is rotated by a pawl W carried by a lever V actuated by the traverse rod Y so as to cause the additional traverse speed to increase to a maximum and fall to a minimum alternately. Slots in the levers D, L carrying the cam-engaging rollers C, S allow the length of the traverse to be adjusted. The main cam A may be reciprocated axially by a plate cam B, e.g., once in eighteen or twenty revolutions of the cam.
Patent GB-572739-A (GB)
Title: Improvements in impedance transformers comprising transmission lines
IPC: H01P5/02
Filed: 1941-11-11
Abstract: 572,739. Impedance networks. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Nov. 11, 1941, No. 14502. [Class 40 (iii)] A variable impedance transformer comprises a transmission line provided with means for modifying its characteristic impedance in two or more sections thereof, the positions of such sections being variable. It is shown that when a load terminates a line of normal characteristic impedance Zo, the load impedance can, provided it lies within certain practical limits, be transformed to Zo at the input terminals of the line by modification of the characteristic impedance over two suitably spaced sections of length #/4, where # is the wave-length of the oscillation in those sections. The modified sections need not be of that length however, nor need they be of the same length, and, moreover, the line need not be uniform before it is modified. In the case of a coaxial line, the modification may be provided by blocks 5, 6 of dielectric material, such as that known under the Registered Trade Mark " Distrene," which are slid along the line by means of threaded pins 7 projecting through slits in the outer conductor and clamped in position by nuts on the pins. Another method, which is applicable also to a parallel line, is to vary the ratio of the diameters of the conductors to the distance between them by means of metal sleeves slidable along one or both conductors.
Patent GB-184903-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H03K3/04
Filed: 1921-05-25
Abstract: 184,903. British Thomson - Houston Co., Ltd., (General Electric Co.). May 25, 1921. Vacuum tubes.-A discharge device having as electrodes only an anode and an electron-emitting cathode contain as vapour or an inert gas such as helium at a pressure below one millimetre of mercury and such that the device exhibits a negative ampere-volt characteristic over a part of its operating range. A suitable pressure is 5-75 microns of mercury. As shown, the cathode 2, Fig. 1, is a straight filament stretched by a spring 6, and the anode 3 is a slit cylinder, held by coiled wires 7 placed between it and the container. Fig. 2 shows the characteristic curve d, a, b, c of the device; a range a, b in which the characteristic is negative separates two regions in which it is positive. The tube may be connected to a heating circuit 14, Fig. 3, and through inductance 12 and variable resistance 13 to a constant-current supply 10, 11. A condenser 15 is placed in shunt to the tube, either directly or through a resistance 16 or the like, by means of a switch 17. When the main resistance 13 is suitably adjusted, the current and voltage follow the course a, c, b, d shown in Fig. 2, the dotted lines a, c and b, d representing sudden jumps. Oscillations thus produced are utilized in a circuit shunting the resistance 16 and comprising the grid and cathode of an amplifier 25 of which the anodecathode circuit is fed by a generator 30. Inductances 53 and condensers 34 may be arranged so as to impart a sine form to the oscillations. The anode circuit of the amplifier may be connected in turn to the grids of a bank of amplifiertubes. In another arrangement, a transformer,. with or without additional inductance, is connected in series with the condenser 15.
Patent GB-668319-A (GB)
Title: Improvements in or relating to yarn conditioning devices
IPC: D06B1/00
Filed: 1949-05-31
Abstract: <PICT:0668319/III/1> A device for conditioning and dyeing yarn while being wound on to a package rotated by a drive roller of a winding machine has a wick holder which has a liquid supply for wetting the wick and is movably connected with the machine, periodically acting actuating means for moving the holder into and out of contact with the drive roller for intermittent application of liquid from the wick on to the drive roller for transfer to the surface of the yarn package, and a resilient member between the actuating means and the holder for pressing the wick into contact with the drive roller. Electric motor 1, through eccentric disc 2, push-rod 3 and lever 4, rotates shaft 5 which turns lever 8 and causes, through the pull of spring 7, the wick box 6, revolvably mounted on shaft 5, to rotate and bring wick 9 into contact with the drive roller 10, driving yarn package 18.  The duration and frequency of contact may be varied by moving the motor on rails 11 and by changing the motor speed respectively.  The liquid supply from reservoir 14 is fed by pump 13 to constant level tank 12 and thence through hose 19 into the wick case at a point opposite the portion of the drive roller which supports the thick end of cone 18 so that more liquid is available where required.  If winding is interrupted the package is automatically withdrawn from contact with the drive roller and means are provided connected with this automatic withdrawal system to lock the wick case out of contact with the drive roller.  Alternative actuating means including an intermittently energized solenoid regulated by a valve circuit to control the duration of contact and non-contact is described.
Patent GB-1096713-A (GB)
Title: Improvements in or relating to tank cleaning machines
IPC: B05B3/04
Filed: 1965-04-06
Abstract: 1,096,713. Cleaning tanks. B. C. BRISTOW and R. A. McCLOUD. April 6, 1965 [March 19, 1965], No. 14592/65. Heading A4F. [Also in Division B2] In a tank cleaning machine intended to be suspended on a supply hose for cleaning liquid within a cargo tank of a railway car or a ship, cleaning liquid introduced through an inlet 12 in a main housing 10 actuates a turbine 72 on a shaft 74 carrying a pinion 78, which, through gears 82, 84, 88, 90, 93, 94 and 98, drives a pinion 102 meshing with a ring gear 104 on a housing 14 mounted on the housing 10 to rotate the housing 14 about a vertical axis at a slower speed than that of the turbine 72. The cleaning liquid passes through the housing 14 to be discharged through nozzles 18 carried by a housing 16 which is rotated about a horizontal axis by the reaction of the discharged liquid and the meshing of bevel gears 26, 52 on the housings 14, 16, respectively. The bevel gear 52 is locked to the housing 16 by a hydraulic clutch comprising a piston 58 held by liquid pressure in engagement with a recess 56 in the gear 52, so that when liquid is not supplied to the machine the nozzle housing 16 may be rotated manually.
Patent GB-1499185-A (GB)
Title: Device for producing an inside groove in a plastics tube or tube component
IPC: B29C57/04
Filed: 1975-04-09
Abstract: 1499185 Grooving tubes UPO OSHKEYHITO 9 April 1975 [11 April 1974] 14629/75 Heading B5A A mandrel for grooving a tube comprises a shaft 1 supporting two sets of segments 8/12 that are movable radially, one set after the other by surfaces 24/17 inclined to the mandrel axis and axially spaced one from another. As described, a metal sleeve 14 (Fig. 1) and a plastics tube 15 to be grooved are placed over the mandrel so that the segments 8/12 form a groove 7 in the tube 15. Thereafter, the shaft 1 is withdrawn to the left, and a spring-urged guide ring (4-7)/11 holds the segments against movement with the shaft. The set of segments 12 slide down the inclined surface 17, guided by a T-slot 18, to rest against stops 19/20, while the set 8 slides along a non-inclined surface 21 and pushes the sleeve 14 and tube 15 before it. Afterwards, the segments 8 slide down the inclined surface 24 until arrested by a stop 27 whereafter the tube 15 and sleeve 14 can be withdrawn uninterrupted from the mandrel. The plastics tube 15 is preformed before grooving, or is cast, pressed or extruded about the mandrel.
Patent GB-361815-A (GB)
Title: Improvements in sports and other shirts
IPC: A41B1/00
Filed: 1931-05-19
Abstract: 361,815. Shirts. HIRST, W., 5, Northern Grove, West Didsbury, Manchester. May 19, 1931, No. 14697. [Class 141.] For purposes of ventilation, shirts are made of ordinarv material except for the top of the sleeves at which position a piece of porous or openwork material P is used either on the under side, as shown, or right round the sleeve S. The piece of material P is hemmed around the edges to prevent fraying, and is stitched to the body material at H.
Patent GB-1342923-A (GB)
Title: Heat pipe manufacture
IPC: F28D15/04
Filed: 1971-05-13
Abstract: 1342923 Making heat pipes RCA CORPORATION 13 May 1971 [18 May 1970] 14772/71 Heading B3A [Also in Division F4] A method of making a heat pipe includes cleaning its internal surface to remove contaminants preventing wetting of the surface and forming on the cleaned surface an anticontamination coating of material soluble in the working fluid at working temperature. Prior to assembly of the pipe, parts 13, 15, 17 of an envelope 11 and a capillary structure 23, all of stainless steel, are cleaned chemically and fired in a reducing atmosphere at 900‹ C. The surfaces to be internal in the pipe and the structure 23 are nickel plated and then re-fired at about 800‹ C. to remove contaminants deposited during plating. The structure 23 is then inserted in the member 13 and the end cap 15 is electron-beam welded in place. Mercury metal working fluid is added under an inert atmosphere, the cap 17 electron-beam welded in position and the assembled heat pipe evacuated at about 400‹ C., to clean the system further. Some dissolution of the nickel coatings takes place during this process and the mercury vapour formed is held in the envelope 11 by heating the end 19 of the cap 17 to about 800‹ C. Upon cooling, the end 19 is sealed to make the envelope 11 vacuum-tight. The heat pipe is now ready for use and in service the nickel is progressively dissolved by the mercury, which is preferably saturated with nickel when all the latter has dissolved. This gives optimum resistance to attack by the mercury and pumping efficiency. In an alternative embodiment, the wettable surfaces are of iron or nickel-iron alloys, in which case the initial firing may be performed in a high-vacuum atmosphere at 1000‹ C. or higher.
Patent GB-1211067-A (GB)
Title: Improvements in or relating to turntables
IPC: F16H43/00
Filed: 1969-03-20
Abstract: 1,211,067. Excavator turntables. EISENWERK ROTHE ERDE G.m.b.H. 20 March, 1969 [25 June, 1968], No. 14779/69. Heading E1F. [Also in Division F2] A drive for an excavator turntable 10 having a rotatable outer ring 102 supported by bearing balls 11 on an inner ring 101 mounted on a baseplate 12, comprises two brake bands 19 around the outer ring 102 which are oscillated about the turntable axis of rotation by respective double-acting fluid pressure jacks 13 and caused to grip the outer ring 102 alternately by respective double-acting fluid pressure jacks 18 so that continuous rotation is obtained. Bell cranks 17 pivoted together at 16 connect each jack 18 to its brake band 19, the pivot 16 being mounted on the piston rod 15 of the respective jack 13. Vertical trunnions 131, 132 connect the cylinders of jacks 13 to the baseplate 12. The jacks 13 may be as shown or both may act in the same tangential direction relative to the ring 102.
Patent GB-358869-A (GB)
Title: Process for the production of higher aliphatic alcohols
IPC: C07C29/149
Filed: 1931-05-20
Abstract: Higher aliphatic alcohols containing more than five carbon atoms in the chain are prepared by treating the corresponding free carboxylic acids, completely free from ageing products, with hydrogen at elevated pressures and temperatures in the presence of hydrogenating catalysts.  The ageing products are those which are formed on storing and impair the activity of the catalysts.  The desired initial material may be obtained by splitting off the acid from the glyceride shortly before carrying out the reduction.  In an example, cocoanut oil acids freshly prepared by hydrolysing cocoanut oil are mixed with a catalyst prepared by precipitating copper carbonate on kieselguhr from copper acetate and reducing or not, and heating the mixture under pressure.  The alcohols obtained may be used directly for sulphonation.
Patent GB-312799-A (GB)
Title: Improvements in and relating to the manufacture of emulsions
Filed: 1928-05-24
Abstract: 312,799. Marks, E. C. R., (Chemische Fabrik Stockhausen et Cie). May 24, 1928. Emulsions, making.-Aqueous emulsions are prepared by the use, as emulsifying agents, of the sulphonated oils fats, fatty acids or mixtures of these obtained by the processes described in Specifications 293,480 and 293,717, [both in Class 2 (iii), Dyes &c.]. The products are utilizable as boring oils and in the textile and leather industries. An example of the invention is as follows :-20 parts of olive oil, earth nut oil or other oil or fatty acid are added gradually with vigorous stirring to 10 parts of the above sulphonated compounds and the resulting creamy mass stirred slowly into 20-30 parts of hot water. The product is thick and is diluted with cold water before use.
Patent GB-144635-A (GB)
Title: Improvements in combined coal and gas grates
IPC: F24C1/04
Filed: 1920-06-07
Abstract: 144,635. Jackson, H. A. June 5, 1919, [Convention date]. No Patent granted (Sealing fee not paid). Grates; lighting fires.-In a grate adapted tu burn gaseous fuel for igniting the coal, the hollow bars 3 are wider at the top than the bottom in order to prevent entry of ashes into the gas-burner openings 4, which are arranged along their sides, and which incline upwardly and outwardly to direct the flames up between the bars. The bars form rotatable grate sections 1, geared together as shown so that both may be rocked simultaneously from the shaft 12. Gas is supplied from a pipe 7 having branches 8 projecting into conical mixing chambers 6, shields 9 screwed on the pipes 8 allowing the air supply to be regulated. The sections 1 are formed with bearing disks 11, the bearing openings for which in the wall 10 of the stove or furnace allow the cones 6 to pass through when the grate is removed.
Patent GB-637955-A (GB)
Title: Improvements relating to mixing apparatus for pulverulent or granular materials
IPC: B01F15/00
Filed: 1948-06-07
Abstract: 637,955. Mixing appliances. GARDNER & SONS (GLOUCESTER), Ltd., W., and PRICE, D. G. June 7, 1948, No. 15322. [Class 86] In a mixing machine in which the stirrer comprises ribbon - like strips supported by radial arms extending from a shaft, the inner ends of the arms 20 are received by holes or recesses 22 in the shaft 21 and are secured therein by welding at 23. The arms 20 may be round in cross section or may be square or rectangular, in which cases their sides are inclined to the axis of the shaft 21. Specifications 10606/89. 19415/12, [both in Class 86], and 551,590, [Group XXX], are referred to.
Patent GB-998127-A (GB)
Title: Improvements in or relating to reinforcements for concrete structures
IPC: E04C5/06
Filed: 1962-04-24
Abstract: 998,127. Reinforced concrete. BAU STAHLGEWEBE G.m.b.H. April 24, 1962 [April 25, 1961], No. 15462/62. Heading E1V. A reinforcement in or for a concrete structure formed with flat or curved surfaces meeting at an angle comprises steel rods 1, 2 arranged in individual angled lattices which are interfitted together at corners 7. The lattices may each be formed by bending a flat lattice back on itself and the interfitting lattices are secured together by inserted rods 8, one of which is optionally pre-welded to a lattice. Concrete elements each containing an angular lattice may be pre-formed, the edges of each lattice projecting to interfit when the elements are joined by concrete on the site.
Patent GB-581258-A (GB)
Title: Improvements in or relating to the treatment of seaweed
IPC: F26B1/00
Filed: 1944-08-14
Abstract: Seaweed is treated prior to extracting alginic acid by drying in air, cutting into small pieces, suspending in water and disintegrating whilst in suspension, screening and drying.
Patent GB-130503-A (GB)
Title: Improvements in Collar Studs and the like.
Inventor: JENSEN ORLA VILHELM
IPC: A44B3/04
Filed: 1918-09-25
Abstract: 130,503. Jensen, O. V. Sept. 25, 1918. Studs.-A stud comprises a plate a, a link or rod b attached thereto, and two pivoted loops c, d, or their equivalent rotatably mounted intermediate their ends on a common pivot p at the end of the rod b, so that they may be turned into the positions shown in Figs. 1 and 2. To hold the device in the position shown in Fig. 1, a plate c may be provided hinged to one loop d and adapted to clip over or to be spring-pressed against the other loop c.
Patent GB-1223231-A (GB)
Title: A surface water detector comprising an electric switch
Inventor: HSU CHARLES JUI-CHENG
IPC: D06F39/08
Filed: 1969-03-25
Abstract: 1,223,231. Actuation of switches. C. JUICHENG HSU. 25 March, 1969 [1 April, 1968], No. 15577/69. Heading HlN. A water alarm comprises a case 11 and cover 12, case 11 having an opening 15 in a bottom wall, the bottom wall edge 17 around opening 15 forming a seat receiving a water expandable capsule unit 18 bulging downwardly out of opening 15, the bottom wall having low feet 20 on its underside to allow entry of water below case 11 to engage downwardly bulging capsule 18, and a mechanically depressible electric switch 26 in alignment with capsule 18, switch 26 being in circuit with an electrical power source and a warning signal device. Capsule 18 is filled with sterculia lychnophora hanoe powder 19 which expands when combined with water to operate switch 26. Switch 26 has contacts 27, 28 and fits in cover 12 in a space 30 in a rubber spacer with a flexible, thin rubber panel on the underside of the spacer and with a metal disc having a raised edge between the rubber panel and switch 26 in alignment with capsule 18. The capsule may be formed as shown by round upper and lower panels stitched together round the edges to hold the powder, or it may comprise a rectangular envelope 35, Fig. 5 (not shown), or a pocket 36, Fig. 6 (not shown), having an inwardly turned upper edge 37 to which a cover panel 38 is secured, or a bag-type enclosure 39, Fig. 8 (not shown), having a gathered upper portion to form a mouth 40, or the capsule may contain a plastic sponge 41, Fig. 9 (not shown), impregnated with the powder 19. The capsule may contain internal contacts closed when the capsule expands. The capsule may be accordian shaped. The capsule unit may comprise parallel capsules 42, Fig. 10 (not shown), all joined along one edge, the opposite edges being expandable into a circular pattern so as to engage contacts 43 and 44 on opposite sides.
Patent GB-662281-A (GB)
Title: Improvements relating to secondary surface tubular heat-exchangers
Inventor: THOMPSON ANTHONY CLIVE
IPC: F28F1/12
Filed: 1949-06-11
Abstract: 662,281. Tubular heat-exchangers. MORRIS MOTORS, Ltd. June 7, 1950 [June 11. 1949], No. 15606/49. Class 64(iii) In a tubular heat-exchanger, e.g. a coolant radiator or an oil cooler, comprising an assembly of thin-walled tubes A of elongated or oval cross-section, held in a tube plate C and provided externally with secondary heat transfer surfaces B arranged between the tubes, a web-like metallic fillet E is bonded to the marginal portion of the tube plate and either to the tube nose (i.e. at G) or to the neighbouring secondary heat transfer surfaces or to both. In the form shown the tube plate C is assembled from channel-section strips having their side walls recessed to accommodate the tubes, each strip being reinforced by an oppositely facing channel member D bonded thereto at the sides of the channel. A one-piece tube plate may be employed and in this form the fillets E may be formed in pairs by U-shaped members having their limbs spaced to correspond to the pitch of the tubes