baber/WOPTO huggingface dataset:
Patent GB-159450-A (GB)
Title: Improvements in and relating to the manufacture of volute springs
IPC: B21D11/06
Filed: 1920-07-07
Abstract: 159,450. Twinberrow, J. D. July 7, 1920. Volute springs.-Springs of the character described in Specification 29522/09 are manufactured from strips X, Fig. 2, curved so as to form such springs automatically when wound upon a mandril as shown in Fig. 3. The curvature is obtained by plotting the consecutive convalutions of the developed helix of the spring in conjunction with the deflexions of convolutions of corresponding diameter when subjected to the desired stress, the length of the perpendicular o, o<1> from the apex of the curve Ia to the base line I being equal to the square root of the third power of the base line from 0 to 7 when multiplied by a factor depending upon the thickness of the steel, its elasticity, and the working stress. The manner in which curves for springs of various thicknesses and pitches are plotted is described in detail.
Patent GB-1474232-A (GB)
Title: Production of a gel of a water-soluble polymer
IPC: C08F2/10
Filed: 1974-05-02
Abstract: 1474232 Polymerization of water-soluble monomers into gels; recovering gels from reaction vessels NITTO KAGAKU KOGYO KK 2 May 1974 [2 May 1973 7 July 1973 2 Aug 1973 (2)] 19257/74 Heading C3P An aqueous solution of a water-soluble monomer is polymerized to form a gel by a process wherein: (i) the mass of gel is unagitated during polymerization, (ii) the temperature of the gel is permitted to rise due to the heat of polymerization, (iii) heat is supplied to the polymerization vessel to compensate for the heat sink properties of the vessel and auxiliaries and provide uniform temperature throughout, and (iv) the weight ratio of the monomer to the water is chosen so that the final gel will fall out of the polymerization vessel under its own weight. After polymerization the vessel is upended and the mass of gel is caused to collide with a rigid bar disposed between the vessel and a receptor for the gel so that the bar absorbs the energy of falling of the gel. The preferred monomer is acrylamide.
Patent GB-498824-A (GB)
Title: Improvements in or relating to electron discharge devices for use in television or like systems
IPC: H01J31/12
Filed: 1937-07-13
Abstract: 498,824. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and WILLANS, P. W. July 13, 1937, No. 19337. Drawings to Specification. [Class 39 (i)] In a television receiving-device in which an electrostatic image corresponding with received signals is formed on a control electrode to control the spatial distribution of an electron stream, as described in Specification 475,047, the control electrode consists of a conducting grid coated with an insulating substance which is capable of emitting secondary electrons, or carries secondarily emissive mosaic elements, and is scanned with an unmodulated electron beam while signal potentials are simultaneously and synchronously applied to the grid, so that the portions of the control electrode surface being scanned attain, relative to the external electrodes, a constant instantaneous potential and, relative to the grid, potentials varying in conformity with the electrostatic image it is desired to reconstitute ; during the flyback periods the scanning beam is switched off and the grid brought to a fixed potential, being meanwhile flooded with an electron beam which, modulated in its different parts by the control grid, is focused on to a fluorescent screen. The flooding-beam is switched off except during the flyback periods.
Patent GB-1346961-A (GB)
Title: Apparatus for maintining a constant winding pull during winding  and unwinding of a web of fabric
IPC: B65H23/195
Filed: 1972-04-26
Abstract: 1346961 Automatic control of web tension HYDREL A G 26 April 1972 [26 April 1971] 19350/72 Heading G3R In a system for keeping constant tension in a web 1 during winding or unwinding by controlling the speed of a hydraulic reel motor 6 in response to electrical signals indicative of the position of a compensating roller 2 in a loop of the material, additional control signals are provided by tachogenerators 17, 18 on guide rollers 3, 4 on either side of the loop. Under stable conditions the tachogenerator signals are equal and of opposite polarity, and so cancel out, but they are effective during acceleration or deceleration to prevent oscillations of the compensating roller 2. The signals are summed in an amplifier 15, with gain adjuster 16, to control a regulator 12 of a hydraulic pump 7. 10 is a "brake valve".
Patent GB-304993-A (GB)
Title: Rivet caulking machine
IPC: B21J15/48
Filed: 1928-07-04
Abstract: 304,993. Babcock &. Wilcox, Ltd., (Babcock & Wilcox Co.). July 4, 1928. Caulking.-A machine for caulking rivet heads 18 in the interior of a boiler drum comprises a wheeled carriage 22 adjustably supporting a head 13 which is provided with a pair of pneumatic caulking tools 16 and an abutment 12, the head being adapted to be elevated by fluid pressure to force the member 12 into contact with the rivet under operation. The head 13 is carried by a hollow piston 11 sliding in a cylinder 10 which is pivoted by means of a trunnion 20 in a member 21, vertically adjustable relatively to the carriage, by a hand wheel 25 and screw 23. The reaction of the abutment 12 is taken by a rod 28 provided at one end with a rubber-faced plate 38 bearing on a surface diametrically opposite to the rivet being caulked, and at the other end with a piston 33 subjected to the fluid pressure supplied to the midpart of the cylinder 10 by a port 40. A port 31 admits fluid to the interior of the piston 11 from whence it is conveyed to the caulking tools by pipes 42. The head 13 is rotated by hand about the axis of the rivet to effect the caulking of the whole periphery of the rivet head. The carriage wheels are adjustable so that the carriage may be guided by the butt strap 47. In a modification the carriage is counterweighted at one end and carries at the other an outboard seat for the operator. The seat is vertically adjustable relatively to the carriage and is carried by a member which also carries the caulking tools. Tn this modification the tools operate downwardly the reaction being taken by the combined weight of the carriage and operator. Springs are provided to lift the tool head clear of the rivet on shutting off the fluid pressure.
Patent GB-1150224-A (GB)
Title: Improvements in and relating to Hydraulic Control Systems.
Inventor: SMITH ROYSTON GEORGE
IPC: G01L27/00
Filed: 1965-05-07
Abstract: 1,150,224. Hydraulic control apparatus. K.D.G. INSTRUMENTS Ltd. May 9, 1966 [May 7, 1965], No.19459/65. Heading F1P. Apparatus for subjecting inlets 11, 12 Fig.1 of hydraulic apparatus under test, e.g., a differential pressure transducer 10, to differing pressures comprises two mechanically linked pistons 37, 43, Fig.2, axially adjustable within aligned cylinders 34, 35 which are connected respectively to said inlets 11, 12 to a pump 15 through valves 16, 18, 23, 24, 25 and to each other through a by-pass valve 27, the arrangement being that with valves 16, 18, 23, 24, 25 open the system is pressurized as indicated by a gauge 17, and with valves 16, 23, 27 closed, adjustment of the connected pistons results in a pressure differential at inlets 11, 12 and which is indicated by a mercury filled U-tube 21, 22. The system is depressurized by opening a normally closed return valve 28. A link 36 connecting the pistons 37, 43 is in screw-threaded engagement with a nut 46 mounted between bearings 47, 48.
Patent GB-1001074-A (GB)
Title: Formed tube coupling
IPC: B60K17/22
Filed: 1962-05-21
Abstract: 1,001,074. Flexible shaft couplings. GENERAL TIRE & RUBBER CO. May 21, 1962 [May 23, 1961], No. 19465/62. Heading F2U. A telescopic flexible shaft coupling, especially for vehicle transmissions, comprises an inner splined member 9 within an outer fluted sleeve 27, with rubber channel cushions 21 mounted between the sleeve 27 and channel bearing strips 15 engaging the splines 9. The bearing strips 15 may be of metal or plastics material, and their sides may be flat or fluted, as shown, to provide pockets 25 for the cushions 21 when deformed under load. The cushions 21 may be bonded to the sleeve 27, or if not may be precompressed during assembly to prevent separation of the wall surfaces under load. Their inner surfaces may be formed with grooves filled with lubricant, Fig. 5 (not shown). The members 15 subtend an angle of at least 30 degrees at the centre of the shaft.
Patent GB-240273-A (GB)
Title: Improvements in and relating to davits
IPC: B63B23/18
Filed: 1924-08-16
Abstract: 240,273. Nielsen, T. Schr÷der-. Aug. 16, 1924. Daivts. - In connection with slueing davits arranged as described in Specification 116,692 in which the axis of the davit socket 2 is inclined at a suitable angle so that the act of swinging out the boat causes the gunwale to be lowered approximately to the level of the sihp's deck, the davits 1 are connected at their extremities bv a rod which is shorter than the distance separating the the axes of the davits, and the tackles 14 which control the slueing of the davits, are secured to an inboard pillar 28 arranged at a distance from the inner gunwale of the boat when swung in, which is approximately equal to or smaller than the breadth of the boat. The lowering gears 8 are suspended near the ends of the connecting bar.
Patent GB-673858-A (GB)
Title: Improvements in or relating to electric switches and magnetic blowouts therefor
IPC: H01H33/59
Filed: 1949-07-25
Abstract: 673,858. Arc-rupturing in switches. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. July 31, 1950. [July 25, 1949] No. 19520/49. Class 38 (v). Extinction of the arc formed on separation of the contacts 1, 2 of a switch, e.g. an electromagnetically, pneumatically, or mechanically operated contactor, is caused or assisted by a magnetic blow-out device, comprising a coil 8 having a core of high magnetic retentivity, i.e. a permanent magnet, the latter assisting in the interruption of low-current arcs. The coil may be connected in series with the contacts in an arc chute 3.
Patent GB-1037175-A (GB)
Title: Improvements in fibre spinning
Inventor: RICHARDSON NEIL MAYOH
IPC: D01F1/10
Filed: 1962-05-22
Abstract: To improve the colour of fibres spun from acetone-soluble copolymers of acrylonitrile and vinylidene chloride 0.1 to 5 weight per cent of the polymer of a reducing agent selected from formaldehyde, benzaldehyde, glyoxal, formic acid, oxalic acid, tartaric acid, thioglycollic acid, benzene sulphinic acid, thiourea dioxide, monomethylol formamide, sodium hydrosulphite and metal formaldehyde sulphoxylates, is added to the spinning solution.  In Examples (1) tartaric acid, (2) thiourea dioxide, (3) thioglycollic acid and (4) zinc formaldehyde sulphoxylate are added to spinning solutions comprising aqueous acetone solutions of redox polymerized acrylonitrile/vinylidene chloride copolymers, titanium dioxide and organotin compound.
Patent GB-160855-A (GB)
Title: Improvements in apparatus for testing the internal condition of metals in respect to cavitation, continuity, stratification, homogeneity and the like, specially applicable for testing welded joints
IPC: G01N27/90
Filed: 1919-08-09
Abstract: 160,855. Marchant, E. W. Aug. 9, 1919. Welded joints.-In a device for testing acetylene or arc welded joints of ships' plates &c., an exploring coil A mounted so that it can be moved over the magnetic or non-magnetic metal at a distance from the surface, is connected through a resistance D to a source S of alternating electric current. Shunting the resistance D and exploring coil A are a second resistance C and comparison coil B. One resistance, or each, is provided with an adjustable section C<1>. A circuit bridging the connections between each coil and its resistance contains a synchronous commutator E with revolving brushes, and a galvanometer G. While the exploring coil A is over a part of the weld known to be sound, the resistances are adjusfed so that the galvanometer is at zero. An adjustable inductance may be inserted between one coil and the galvanometer circuit, for the same purpose; or the distance of 'the comparison coil B from a standard metal piece F may be adjusted. Preferably, two adjustments to zero reading are made, one with the commutator brushes set for currents in phase with the supply pressure, and the other with the commutator set for currents 90‹ in phase behind the supply pressure. The readings of the galvanometer may be arranged so as to indicate quantitatively any internal defects or excess of metal in the joint &c., tested. Alternatively, the balance may be reestablished, so as to give a zero galvanometer reading, by movement of the comparison coil B relatively to the piece F, or by other means giving quantitative indication of defects.
Patent GB-848660-A (GB)
Title: A process for the production of ethers of highly polymeric formaldehyde
Inventor: KUEHN ERICH
IPC: C08G2/00
Filed: 1959-06-09
Abstract: Ethers of highly polymeric formaldehyde are obtained by reacting the latter with an alphachoralkyl ether of an aliphatic, cycloaliphatic, heterocyclic or aromatic hydroxyl compound, preferably in the presence of a basic compound, or with a quaternary salt of the alpha-chloralkyl ether with a tertiary amine.  Alpha-chloralkyl ethers mentioned are chlormethyl methyl ether, chlormethyl ethyl ether, bis-(chlormethyl) ethylene glycol ether, bis-(chlormethyl) butane-diol-(1,4) ether, chlormethyl cyclohexyl ether, chlormethyl benzyl ether and chlormethyl cyclohexyl ether.  In Examples polyformaldehyde is reacted with quaternary salts of dimethylcyclohexylamine with chlormethyl methyl ether, 1,4-bis (chlormethoxy) butane, alpha-chlorethyl isobutyl ether, alpha-chlorethyl benzyl ether and 2,3-dichlordioxane.
Patent GB-921905-A (GB)
Title: Improvements in or relating to irradiation installations
IPC: A01G7/04
Filed: 1959-06-09
Abstract: 921,905. Treatment of growing plants. P. VIDAL. June 9, 1959 [June 10, 1958], No. 19721/59. Class 6(2). [Also in Group XX]. A rotatable rotation source can be raised away from the ground on a vertical support member, so that crops or plants on the ground around the source can be scanned by the circular sweep of the radiation beam; a vertical shaft in the ground is provided so that radiation can be inhibited by lowering the source into the shaft. In the arrangement shown, the source is a framework of steel tubes 14 containing cobalt 60, mounted between annular plates 12, 13, and surmounted by a lead shield plate 9. The frame is rotated by a motor 10, preferably at about 10 r.p.m. The frame is supported within a tower-like structure 1, and can be raised or lowered therein by a cable 8 operated by a motor 6. The movement of the frame is guided by vertical slide-bars which extend the whole height of the tower and into a shaft 2 in the ground vertically beneath the tower. The radiation frame is lowered into this shaft when not required to be operational, the shield plate 9 then acting as a cover for the shaft.
Patent GB-928915-A (GB)
Title: A boiling-water reactor
IPC: G21C15/26
Filed: 1960-06-03
Abstract: 928,915. Reactors. LICENTIA PATENTVERWALTUNGS G.m.b.H. June 3, 1960 [June 12, 1959], No. 19748/60. Class 39 (4). An arrangement for separating steam from water in a boiling-water reactor having fuel elements 2 in a pressure vessel 1 makes use of the fact that steam tends to concentrate in the axial region of a vertical pipe through which is upwardly flowing a mixture of steam and water, and comprises steam delivery pipes 4 arranged coaxially with the fuel elements and having their lower ends beneath the water level 5. The pipes 4 may, as shown, extend into chimneys 3 interposed between the pipes and the fuel elements 2, or, in forced circulation reactors, the chimneys may be omitted and the pipes extend into the upper portions of the fuel elements. The separation may be improved by employing centrifugal separators including a swirl-producing spiral 6 and a swirl-suppressing spiral 7 situated in the chimneys 3, or where these are omitted, in the upper ends of the fuel elements.
Patent GB-318198-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J61/16
Filed: 1929-06-27
Abstract: 318,198. Claude, G. Aug. 30, 1928, [Convention date]. Vacuum tubes.-A luminous discharge tube is. filled with a rare gas to which is added another rare gas in a proportion below 5 per cent of the. total quantity of gas, the two gases luminescing simultaneously, and is provided with electrodes which are covered with, or consist of, alkaline, earth metals, or alkali metals such as potassium,. which improve the stability of the colour and retard absorption of the rare gases. A filling of helium containing 0.5 per cent of neon in a tube of 30 mm. diameter gives a light pink colour at a pressure of 1.5 mm. and a deep pink colour at a pressure of 3 mm.
Patent GB-1154277-A (GB)
Title: Improvements in or relating to Air Distributors
IPC: F24F13/10
Filed: 1967-04-28
Abstract: 1,154,277. Ventilators. BARBER-COLMAN CO. 28 April, 1967 [26 Sept., 1966], No. 19798/67. Heading F4V. A ceiling slot diffuser comprises a metal vane assembly 45, rotatable about an axis 34 in holes 37 of two support plates 35 which are welded to the side walls 18 of a passage 13, the assembly 45 ensuring that the air flow through the passage 13 is deflected along one or both of the side walls 18, inturned flanges 22 being provided to deflect the air flow laterally through a discharge slot 15. The vane assembly may be formed of resilient sheet metal. In other embodiments, the vane assembly is in cross-section T-, Y- or V-shaped, or triangular. The rotation of the vane assembly may be limited by the flanges 49 of the assembly engaging stops formed by the holes 37. In this form, it is arranged that the edges of the flanges 49 may contact a pair of side walls inside the walls 18 and that the assembly of the inner side walls, the vane assembly and the support plates 35 may be installed, from above, in the diffuser housing after the latter has been mounted in the ceiling.
Patent GB-478269-A (GB)
Title: New or improved automatically acting means for charging hoppers or like receptacles
IPC: B65G23/00
Filed: 1936-07-17
Abstract: 478,269. Feeding material to hoppers. BRITISH COAL DISTILLATION, Ltd., MACHEN, C., and ARAM, E. H. G. July 17,1936, No. 19850. [Class 78 (i)] A controlled feed for a hopper A, which is varied in accordance with the quantity delivered by the hopper A to the using machine, comprises a pivoted tip-bucket B counterweighted at B<2> to remain in the upright position when empty. The bucket receives material from a feeding-apparatus, such as a conveyer D and rotary cylindrical valve C, and tips when full to deliver its contents into the hopper A thus forming anti-breakage means between the conveyer and the hopper. The act of tipping rotates the shaft B<1> and lowers a chain B<4> so that a weight B<5> opens a switch or valve B<7> to stop the feeding-action of the members D, C. This contact is re-made and the feed re-started on the restoration of the bucket. Should the level of the material in the hopper A be so high that the tipped bucket is unable to empty itself completely, it remains in the tipped position until it can deliver the whole of its contents, thus ensuring that the head of material in the hopper A is maintained within narrow limits. The counter-weight and switch gear preferably are fitted outside the hopper A for accessibility.
Patent GB-847122-A (GB)
Title: Improvements in or relating to moderator structures for nuclear reactors
Inventor: CHALLENDER RONALD SCOTT
IPC: G21C5/04
Filed: 1957-06-24
Abstract: 847,122. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. June 24, 1958 [June 24, 1957], No. 19896/57. Class 39(4). A moderator structure which allows for thermal and Wigner growth consists of vertical graphite columns 9 located independently of each other and having vertical passageways 10 and 20 in and between the columns wide enough to accommodate Wigner growth and still leave a passage. The graphite blocks 6 are connected by spigots 11 and spigot holes 12 and by pegs. A layer of tiles 15 is put in the middle of the structure ; the holes in the tiles have internal projections 19. A core plate 7 is spigotted to the columns and has drillings 21 and 22 connecting with the passages 10 and 20. The moderator is covered by a shield 5 having staggered layers of bricks 8 comprising mild steel cans, boron steel ends and sections of graphite separated by boron steel shims. The bricks contain extensions 27 of smaller diameter of the channels 10 with longitudinal chases 30 and are spaced to provide passages connecting with the passages 20. The columns are located at the top by spigot tubes 34 extending from a liquid Na header 35. The channels 10 contain Zr thimble tubes for re-entrant fuel cooling located by pegs 39 engaging spides 40 in the core plate and carrying flow restrictors. Gaseous moderator coolant is fed to channels 10 and 20 at the bottom. The direction of minimum Wigner growth is arranged along the blocks.
Patent GB-1482341-A (GB)
Title: Container for liquefied gas
IPC: F17C3/04
Filed: 1975-05-12
Abstract: 1482341 Cryogenic containers U FINSTERWALDER 12 May 1975 [14 May 1974 20 Aug 1974 13 Nov 1974] 19898/75 Heading F4P [Also in Division B7] The walls of a cryogenic vessel comprise a steel-reinforced concrete 2 with a vapour-tight sealing layer 15 on their inner surface, this layer having a heat-insulating layer 14 located on its inner surface, and the insulating layer 14 being made of a closed-cell synthetic resin foam. Fig. 6 is a vertical section through the side wall of a tanker ship, the concrete being reinforced by longitudinal and vertical reinforcements 11, 12 of nickel steel or aluminium steel. Reinforcements 11, 12 are tensioning elements and horizontal and vertical non-tensioning reinforcements 13 are also provided. Insulation 14 is a polyurethane foam and vapour-tight layer 15 an epoxy resin. Ducts 17, 18 of asbestos cement provide for natural or forced draughts therethrough for condensing any water vapour in wall 2 and then draining it. The insulation 14 may be provided with blind bores for passage of liquefied gas thereinto which causes vaporization and the building up of vapour pressure in insulation 14 to prevent further egress of liquid (Fig. 4, not shown). Ducts 17, 18 can be replaced by cavities between wall 2 and layer 15 left by attaching layer 15 wall 2 only at discrete spaced locations (Fig. 5, not shown). Tanks are shown arranged in a ship (Figs. 1 to 3, not shown), and a pear-shaped land tank is also described (Figs. 8 and 9, not shown).