baber/WOPTO huggingface dataset:
Patent GB-493435-A (GB)
Title: Improved centrifugal apparatus for removing rust, scale, and the like from metallic surfaces
IPC: B08B7/02
Filed: 1937-01-02
Abstract: 493,435. Apparatus for removing rust, scale, &c. LUHR, F. A. Jan. 2, 1937, No. 18625/36. [Class 99 (ii)] In apparatus for removing rust, scale, &c. from metallic surfaces, of the kind comprising a rotatable tool head from which striking tools are pivotally suspended, the striking tools are arranged in one or more sets, each of which is composed of a number of tools 15, Fig. 1, loosely mounted, preferably through a hanger 12, on a common axially-disposed pivot 3 tooated in a "cranked" position on the tool head 1, the tools of a set being so shaped or constrained that when subject to centrifugal force, but otherwise in their free position, they are in a trailing position with respect to the radial line passing through the axes of the head 1 and pivot 3, and are also staggered in angular relation to one another. This staggering may be effected by providing variouslyshaped cams 17 on the tools for engagement with a stop 16 on the hanger 12, by disposing the pivot 14<1>, Fig. 6, of the hanger 12 obliquely with respect to the pivot 3, or by forming a plurality of pivot apertures 35, 36, 37, Fig. 7, in each tool and pivoting the latter by different apertures. In a modification, Fig. 16, tools in the form of wire brushes 109 provided with end collars 110 having cam surfaces 112 are shown pivoted at 111 to hangers mounted on the pivot pins 3, the hangers . being formed with stops 29 for engagement with adjacent hangers. Several further modifications are described in the Specification.
Patent GB-1455744-A (GB)
Title: Stabilised natural rubber latex as an adhesive for plywood
IPC: C08K5/07
Filed: 1974-04-29
Abstract: 1455744 Manufacture of plywood D A R ELISTAMBY and M NADARAJAH 9 July 1975 [29 April 1974] 18680/74 Heading B5L In a method of manufacture of plywood natural rubber latex, either as field latex or centrifuged latex, and stabilized by formaldehyde is used as an inter-ply adhesive. The stability of the natural rubber latex may be improved by the inclusion of a non-ionic stabilizer or of tetramethylthiuram disulphide. Conventional vulcanizing agents may be included to pre-vulcanize the latex and inert fillers and extenders may also be incorporated. The natural rubber latex may be used in combination with a synthetic resin which may be present in selected proportions by weight, suitable resins being urea-formaldehyde, phenol-formaldehyde and a mixture of urea-formaldehyde (75%) and melamine formaldehyde (25%).
Patent GB-1439141-A (GB)
Title: Method of closing a tubeplate aperture or tube in a tubeplate aperture by explosive welding
IPC: B21D39/06
Filed: 1972-08-10
Abstract: 1439141 Welding by pressure; tube expanding YORKSHIRE IMPERIAL METALS Ltd 29 March 1973 [10 Aug 1972] 18828/72 Addition to 1149387 Headings B3J and B3R [Also in Division F2] In sealing an aperture in a metal tube plate or sealing the bore of a metal tube secured in an aperture in a tube plate, a tubular metal plug closed at one end and open at the other is located in the aperture or tube to form a tapering annular space between a portion of the plug and an adjacent portion of the wall of the aperture or the wall of the tube with the distance between the outer surface of the plug portion and the wall portion of the aperture or tube increasing towards the open end of the plug, an explosive charge is located at least partly within the said plug portion, the charge is spaced from the plug by an inert energy transmitting insert and has a detonation velocity greater than 120% of the velocity of sound, or the higher velocity of sound in the portions to be welded and the charge is detonated within the plug to metallurgically bond the plug portion to the aperture or to the tube. The aperture to which the plug is bonded may be for drainage or may be one in which a tube is secured but only over part of its length or one from which a portion of the length of a tube is drilled away. A plug, Fig. 2, with a closed end 2 and a tapered, e.g. swaged and 3 is inserted in a straight aperture 4, Fig. 3, having a heat exchange tube 7 fusion welded to one end of the aperture and an explosive charge located within a polyethylene energy transmitting insert in the plug is detonated to form a wavy band 5. The plug may alternatively have a straight bore with a tapered wall at the open end. A simple straight cylindrical plug machined from rod having a polyethylene insert and a detonator is located within a tube 7, Fig. 4, bonded within a tapered aperture in a plate 6 and when the detonator is fired a wavy band 5 is produced. In a modification the plugs may have a groove in the closed end accommodating a rubber ring to hold the plug in position when vertical apertures have to be closed. The explosive charge is preferably arranged such that the energy travels as a wave towards the open end of the plug. The plug may be of the same metal as the tube or plate or may be of nickel when the plate is of mild steel or the tube of aluminium brass and the surface of the tube or aperture should be scratch brushed.
Patent GB-1465359-A (GB)
Title: Vinyl ester urethanes
IPC: C08F290/00
Filed: 1974-04-30
Abstract: 1465359 Laminates ICI UNITED STATES Inc 30 April 1974 [29 May 1973] 18832/74 Heading B5N [Also in Division C3] Laminates may be prepared from fibre-glass mats impregnated with a vinyl ester urethane resin prepared by (a) preparing a bisphenol A derivative by reacting a polyoxyalkylene bisphenol A with an unsaturated aliphatic dicarboxylic acid or an anhydride thereof and (b) reacting the bisphenol A derivative with a diisocyanate and a hydroxyl-terminated ester of acrylic or methacrylic acid, which resin is preferably mixed with a vinyl monomer e.g. styrene (see Division C3). The procedure adopted is to (a) place a sheet of polyethylene terephthalate film on a flat surface and coat this with a layer of the resin composition, (b) place a continuous fibre-glass mat on this layer, press the mat into contact therewith and coat the layer with a layer of resin composition, (c) place a chopped fibre-glass mat on this layer, press the mat into contact therewith and coat with a layer of resin composition, (d) similarly add a second chopped fibre-glass mat, another continuous fibre-glass mat and a second sheet of polyethylene terephthalate film each separated by layers of the resin composition, (e) cure the composition at room temperature followed by heating and (f) remove the polyethylene terephthalate films.
Patent GB-205176-A (GB)
Title: A process for the electrolytic extraction of zinc from ores and the like
IPC: C25C1/16
Filed: 1922-07-10
Abstract: 205,176. Hansgirg, F. July 10, 1922. Solids, treating with liquids.-In a cyclic process for the electrolytic extraction of zinc, an ore, waste zinc, or other material is lixiviated with spent electrolyte containing only a little free acid in a tower T, to the base of which riddles H containing fresh material are brought by a car W. The zinkiferous material, if powdered, may be previously made into briquettes with a little of the electrolyte at about 60‹ C. The riddles are raised through the tower by a chain K, meeting a stream of spent electrolyte from a tank V<2>. The solution and insoluble material collect in a concrete bath V<3> from which the electrolyte is pumped through a filter press F to the cells A. In a modification, powdered material is lixiviated by an upward stream of electrolyte in a vessel flared at the top to produce a reduction in velocity whereby undissolved suspended matter is deposited. In another modification, a powdered material is supplied to a lixiviating chamber by a worm drive or other adjustable device and flows upwardly through the chamber being rapidly mixed with the liquid by a high-speed turbo-pump. Specifications 6294/87 and 5943/98, [both in Class 1, Acids, alkalies, &c.], 26711/08, and 186,589 are referred to.
Patent GB-585084-A (GB)
Title: Improvements in or relating to compressors
IPC: F04D17/02
Filed: 1945-07-24
Abstract: 585,084. Centrifugal and axial flow compressors. BRISTOL AEROPLANE CO., Ltd., and OWNER, F. M. July 24, 1945, No. 18967. [Classes 110 (i) and 110 (iii)] In a compressor unit having an axial stage and a centrifugal stage coupled together, the rotor blades of the axial-flow stage which are disposed next the impeller blades of the centrifugal stage are equal in number to, or a multiple of, the number of impeller blades, and the entry edge 19a of each impeller blade 19 abuts the trailing edge of one of said' rotor blades 12a the trailing edge of each of the abutted rotor blades being a mirror-image of the entry edge of the associated impeller blade and being smoothly blended into its own leading edge. The axial-flow compressor rotor blades 12 and spacers 14 are retained in position axially by the impeller at one end and an annulus bolted to the rotor at the other end.
Patent GB-419721-A (GB)
Title: Improvements in or relating to loom shuttles
IPC: D03J5/00
Filed: 1934-06-27
Abstract: 419,721. Loom shuttles. SOC. ANON. A. SAURER, Arbon, Switzerland. June 27, 1934, No. 18983. Convention date, July 4, 1933. [Class 142 (iii).] The pirn or cop carrier, for a shuttle for looms with automatic weft supply, is held in the weft aperture 2, Fig. 2, of the shuttle by a band-shaped holding member 6 extending along at least one longitudinal side and the two ends of the aperture. In the form shown in Fig. 2, the cop 4 is secured in a carrier 3 having rings at its ends for engaging notches 12 in the band at one end, and grooves 13 at the other. The band is secured by pins 11, and is cut away at 7 forming spring tongues 8, 9. In modifications, two cut-out tongues are formed in each end of the band which may be formed as a completely closed holding spring, or two cut-out notched springs may be formed in the holding spring for engaging rings formed centrally on the pirn carrier. In the form shown in Fig. 10, the cop carrier 3 is engaged by notched and longitudinally-grooved U-shaped springs 25, 26 passing through apertures in a complete band 22. In the form shown in Fig. 12, a cop-carrier 29, 30 is held in notched springs 28 cut out of a continuous spring band 27 slotted at one end to allow weft to pass to the threading-device 32.
Patent GB-808144-A (GB)
Title: Improvements in or relating to polymeric materials
IPC: C08F10/00
Filed: 1956-06-19
Abstract: Crystalline polymers of olefines of formula CH2 = CHR, wherein R is a C3 to C7 branched chain, saturated hydrocarbon radical or a cycloalkyl or cycloalkyl methylene radical, are obtained by polymerization using catalysts obtained from Group IVa, Va or VIa metal compounds, containing halide or -O-hydrocarbon groups, and reducing compounds, e.g. metal hydrides, aryls or alkyls.  Monomers specified are isopropyl ethylene (3-methylbutene-1), isobutyl ethylene, secondary and tertiary butyl ethylenes, neopentyl ethylene (4 : 4-dimethyl pentene - 1), 3 - and 4 - ethyl - 1 - pentenes; vinyl and allyl cyclopropanes, cyclobutanes, cyclopentanes and cyclohexanes; 4-methyl- and ethyl - 1 - hexenes and 4 : 4 - dimethylhexene-1. Catalyst components disclosed are titanium and vanadium tetrachlorides, vanadyl trichloride, molybdenum pentachloride, lithium aluminium tetrabutyl and tetradecyl, lithium alkyls, alkyl magnesium bromides, and aluminium trialkyls such as the triisobutyl.  A solvent may be present during the mixing of the catalyst components and during the polymerization and listed are benzene, xylene, chlorobenzene, tetrahydronaphthalene, decahydronaphthalene, cyclohexane and tetrachloroethylene. Polymerization is carried out in the absence of oxygen and water, e.g. in an atmosphere of nitrogen or argon, and may be batch-wise or continuous.  In examples polymerizais terminated and the products are purified by treatment with materials such as methanol, propanol, isopropanol, ether, cyclohexane and alcoholic hydrochloric acid.  Low molecular weight products may be removed with petroleum ether.  The polymers have melting points above 150 DEG  C., are orientable on elongation and may be formed into films, filaments, fibres, bristles, tubes and rods.  Belgian Specification 530,617 is referred to.
Patent GB-1436632-A (GB)
Title: Apparatus for processing photographic materials
IPC: G03D3/06
Filed: 1973-04-19
Abstract: 1436632 Photographic processing apparatus AGFA-GEVAERT AG 19 April 1973 [19 April 1972] 19016/73 Heading G2X A photographic processing apparatus comprises a main processing liquid tank 2, an auxiliary tank into which liquid from the main tank overflows when the level in the latter reaches a predetermined level, an auxiliary tank from which liquid is supplied to the main tank to prevent the liquid level dropping below the overflow level, and means for supplying liquid to this latter auziliary tank when the liquid level therein has fallen below a predetermined level. The two auxiliary tanks may be the same. As shown, a processing apparatus for insertion in a machine frame comprises the main tank 2 through which a photographic material to be processed is transported by rollers inserted in apertures, 7, and a single auxiliary tank 13. In use, the liquid in tank 2 is maintained at level 30 by a weir or spillway 14 over which it flows into tank 13. Liquid is returned to tank 2 from tank 13 by a bladewheel pump 4 through a channel 11. The liquid in tank 13 is maintained at level 22 by a topping- up bottle 15 having a valve 16. Tank 2 may be emptied by lowering a hose (26) attached to the tank by a connector (25). If weir or spillway 14 is inclined the liquid level 30 may be varied in use by tilting tank 2.
Patent GB-1091565-A (GB)
Title: Apparatus for coating a material with a molten thermoplastic material
IPC: D04H11/04
Filed: 1964-05-05
Abstract: 1,091,565. Web coating apparatus. W. D. McALPINE. May 5, 1965 [May 5, 1964], No. 19047/65. Divided out of 1,091,564. Heading D1L. In apparatus for coating a material with molten thermoplastic material a roller 38 is mounted for rotation in bearings 39 and is driven from a motor 39a. Thermoplastic material in granular or flake form is fed into a hopper 40 having a curved bottom plate 41 which is spaced from the roller surface but positioned progressively closer thereto so as to define a chamber 80 of progressively decreasing depth from an inlet end 81 to an exit end 82. The front portion of this chamber is heated by heaters 42 and the roller 38 is also heated so as to maintain the thermoplastic material in chamber 80 in a molten state. The rear section of the hopper has cooling means 44, 45, 46 to maintain the thermoplastic material therein in particle form and this prevents oxidisation of the molten material in chamber 80. In use roller 38 picks up molten thermoplastic material from the chamber 80, the material is smoothed by heated doctor blade 48 and applied to web 49 brought into contact with the surface of the roller by suitable guide means. In a second embodiment (Fig. 3, not shown) a second roller 83 is spaced from the first roller 38 and extending between the two rollers is a heat conductive endless belt 85. In this embodiment roller 83 is cooled and the web 49 is brought into contact with the endless belt 85 such that thermoplastic material picked up by the belt 85 is transferred to the web 49.
Patent GB-613675-A (GB)
Title: Expanding bracelet
IPC: A44C5/08
Filed: 1946-06-26
Abstract: 613,675. Bracelets. GIROD, H. June 26, 1946, Nos. 19048 and 19049. Convention dates, July 2, 1945. [Class 43] Each link of an expanding bracelet comprises a box-shaped case inside which a slide, held therein by a spring device moves said slide comprising a plate folded in the middle to form a housing for an axle which connects the slide with the case of the adjacent link, and has pivots which can be displaced axially, permitting the links to be undone so that the length can be adjusted by adding or removing links. A slide 33, shaped like a flat open-sided box moves in another box-shaped case 34, provided at one end with lugs 36 bent round to form abutments for one end of a Z- shaped blade spring 37, the other end of which is supported by one end of the slide 33. Two links 30 are united by an axle 31, which fits into a sleeve 32 integral with the slide 33 and comprises a tube 22, which houses pistons 23, 24 ending in pivots 25, 26. The pistons cannot leave the tube, but are spring- urged apart, so that the pivots 25, 26 enter eyes formed in lugs 35 at the end of the case remote from the lugs 36. To unlock the links the pivots are displaced in the tube 22 by a tool ; the ends of the tube 22 may be longitudinally slotted so that the pistons 23, 24 can be seized by tweezers and displaced inwardly, in which case the holes for the pivots 25, 26 may be blind.
Patent GB-885575-A (GB)
Title: Improvements in or relating to amino-guanidine preparation
IPC: C07C281/16
Filed: 1960-05-30
Abstract: Amino-guanidine is prepared by reacting an aqueous solution of hydrazine having a concentration of from 1% to 6% by weight with calcium cyanamide at ambient temperatures, filtering the reaction mixture so produced, adjusting its pH to a value of from 3 to 5, heating the reaction mixture to a temperature of at least 75 DEG C. for at least one hour and thereafter precipitating and recovering the amino-guanidine so formed.
Patent GB-734188-A (GB)
Title: Improvements in earthing connections for electrical conduits
IPC: H01R4/60
Filed: 1953-08-27
Abstract: 734,188. Earth-continuity couplings; conduit fittings. VENTER, J. A. Aug. 27, 1953, No. 19091/51. Class 38 (1). A fitting for joining and earthing a pair of conduits 2 comprises an internally threaded metal sleeve 1, screwed on the abutting ends of the conduits, the sleeve having a flange 3 with an extension 4 drilled at 5 to receive an earth wire clamped by a screw 6.
Patent GB-1487693-A (GB)
Title: Web-forming devices in packaging machines
IPC: B29C65/00
Filed: 1975-05-07
Abstract: 1487693 Packaging machines TETRA PAK INTERNATIONAL AB 7 May 1975 [28 June 1974] 19151/75 Heading B8C [Also in Division D1] A packaging machine comprises an endless chain 11 provided with members 12 forming outwardly facing U-shaped recesses, and means for pressing successive lengths of a continuously moving web 6 into the recesses to provide U-shaped formations in the web 6, said means comprising at least two parallel rotary members 42 mounted on a member 38 rotatable about an axis parallel to the axes of rotation of the members 42. In the illustrated embodiment an axle 38 carries three pairs of rollers 42, the rollers in each pair being coaxial and spaced by a gap for the passage of an endless belt 47 tensioned to clamp the web 12 against each of the members 12 in turn whilst a roller pair 42 draws the web 6 into the immediately following U-shaped recess. The axle 13 and the endless chain 11 are driven by a common drive, whilst the belt is driven by the members 12. The web 6 may be of foamed polystyrene covered on both sides with non- foamed polystyrene layers, and is fed from a roll 4 by a driving roller 23 which is stopped by photo-cell devices 24 if operating at excessive speed. The web 6 is preheated to approximately 70 C. by hot air in a chamber 48 and then to 240 C. by hot air passed over electric heaters and discharged from a device 49. The U-shaped recesses in the web 6 are covered by a web 5 of the same material supplied from a roll 3 and fed around a drum 10 where it is punched with pouring holes and the holes covered by a plastics strip 9 applied by a device 27, cut transversely at the edges by a cutter 28, and heated by a device 29. A reciprocating column 18 carries a device 16 for discharging hot air against the edge zones of the web 5, and a device 20 for folding the edge zones to laterally seal the recesses in the web 6. Filling material is applied to the recesses via a pipe 15 controlled by a valve 14, and a sealing device 21 closes the recesses, separate filled containers 30 being severed from the joined webs by a device 22.
Patent GB-121637-A (GB)
Title: Improvements in Acetylene Gas Generators.
Inventor: GRANT ROBERT EDWIN
IPC: C10H1/12
Filed: 1917-12-28
Abstract: 121,637. Grant, R. E. Dec. 28, 1917. Drip-feed apparatus; distributing liquid over solid in generators.- An acetylene lamp comprises a base piece b, a casing a secured thereto by a central bolt f, a transverse partition c dividing the casing into an upper water reservoir d and a lower carbide chamber c, one or more wick tubes l depending from the partition c, and a tube n leading from the lower chamber e to the burner o.
Patent GB-299081-A (GB)
Title: Improvements in or relating to hide and leather working machines
IPC: C14B1/00
Filed: 1927-07-20
Abstract: 299,081. Turner Tanning Machinery Co., Ltd., and Schettler, G. A. July 20, 1927. Rotating-tool machines. - In hide-working machines of the type in which the work is held up to a rotary working tool by a resilient bed-roll, an auxiliary roller for pressing the work against the tool is driven by frictional engagement with the bed-roll. The auxiliary roll 4 is supported by arms 6 pivoted at 7 upon arms 2 pivoted about the axis 3 of the bed roll 4. The pressure of the auxiliary roll against the roll 4 is adjusted by a screw 8, and its pressure against the tool 5 by an eccentric 11 operated by a handle 13 and connected to the arms 2 by an adjustable rod 10. In modifications, spring devices are introduced in the mounting of the roller 1 or in the manual adjusting device.
Patent GB-147195-A (GB)
Title: Steering device for ships and the like
IPC: B63H25/38
Filed: 1920-07-07
Abstract: 147,195. Flettner, A. Oct. 29, 1917, [Convention date]. Addition to 147,024. Rudders.-A rudder 1 which is provided with an auxiliary rudder 2 at the rear end carries a pair of stops a, b, so that the gearing which normally operates only the auxiliary rudder is capable of directly operating the main rudder after a certain amount of relative movement.