baber/WOPTO huggingface dataset:
Patent GB-720032-A (GB)
Title: Improvements in and relating to melt spinning
Inventor: PHIPPS JOHN WILDEY
IPC: D01D4/08
Filed: 1952-02-19
Abstract: In melt spinning apparatus, the pump and the spinning pack form a unit to which the molten filament-forming material is fed from the melting zone, and the unit is detachably connected to the spinning apparatus.  As shown, a duct 4 leads molten polymer from a melting unit (not shown) via a cock 5 and a gland 6 to a spinning pump 7 forming part of the removable pump pack unit 1 supported on the ledge 2 in the spinning head 3.  The gland 6 is made <PICT:0720032/IV(a)/1> fluid-tight by pressure exerted by the clamp screw 8, which can be locked in position.  The apparatus is heated by hot vapour circulating through the spaces 9 and the heat is retained by the lagging 10.  A duct 13 connects the pump outlet with the sand filter pack 14 resting on a wire gauze disc 15 supported by a rigid plate 16.  A spinneret 17 is supported by a plate 18, and parts 15-18 are held rigidly in place in the unit 1 by a ring of bolts 19.  To remove the unit 1 for cleaning or dismantling, the stop cock 5 is closed, the clamp screw 8 is unlocked and slackened off and the retractable shaft 11 (which drives the pump through the key 12) is withdrawn. The lagging 10A is then removed, and the whole unit 1 is lifted from the spinning head 3 by means of the removal tool 20 which fits into the socket 21.  To replace the unit 1 the above sequence of operations is reversed.  In other types of apparatus the unit may move sideways or downwards for removal and may be supported otherwise than on a ledge.  The apparatus enables the changing of the spinning pack for cleaning and replacement of the components to be expedited, since the single joint which has to be broken is on the inlet instead of on the pressure side of the pump.
Patent GB-161038-A (GB)
Title: An improved means of securing slabs of insulating material to surfaces such as bulkheads, ceilings, and the like
IPC: B63B3/68
Filed: 1920-02-13
Abstract: 161,038. Davies, J., Jones, W. H., Davies, J., and Hale, H. J. Feb. 13, 1920. N o n - conducting coverings for heat. -Slabs of insulating-material are secured to surfaces frcm which beams of channel or like flanged section project by means of sheet-metal clips 2 embracing the flange 1<a> and extending in the opposite direction. Nails 6 pass through the tail of the clip into the inner cork slab 5. The secondarv layer of insulating-slab 7 is secured bv means of washers 8 screwing on to studs 3 attached to the plate of the clip at the hooked end. In a modification, this stud screws'also into the flange 1<a>, and a further form in which a bulbous-edged girder is employed, the screw 3 passes through the clip and abuts against the side of the girder opposite to that engaged by the clip.
Patent GB-1292722-A (GB)
Title: Webbing gripper
IPC: B66C1/18
Filed: 1970-01-29
Abstract: 1292722 Buckles AEROQUIP AG 29 Jan 1970 [19 Feb 1969] 4443/70 Headings E2B and E2A Webbing strap 37 is gripped against movement 38 by a wedge 31 sliding in guide-slots 33 so as to grip the strap underneath at smooth surface 34 against smooth base 15 and also at corrugated surface 35 against a corrugated abutment surface 30.
Patent GB-134237-A (GB)
Title: Process of Producing Ammonia and Ammonium Compounds.
Inventor: TAYLOR GEORGE GOLDTHWAITE
IPC: C01C1/08
Filed: 1918-03-13
Abstract: 134,237. Taylor, G. G., and Knapp, I. E. March 13, 1918. Ammonia is obtained from nitrogen compounds such as are obtained by reacting with nitrogen on a carbide, for instance the di-metal isocyanide obtained, by first treating with water or steam below 350‹ C., and then heating in presence of steam to above 450‹ C. The operation may be effected in a tubular retort operating intermittently, or in a continuously-operating retort containing a conveyer, as shown in Fig. 2.
Patent GB-558983-A (GB)
Title: Improvements in and relating to the protective surface treatment of magnesium base alloys
IPC: C23C22/27
Filed: 1942-04-03
Abstract: 558.983. Coating metals. MAGNESIUM METAL CORPORATION, Ltd., and COATES, G. E. April 3, 1942. Nos. 4497/42 and 6718/43. Drawings to Specification. [Classes 82 (i) and 82 (ii)] In a process for the protective surface treatment of magnesium base alloys, the latter are treated with solutions having a dichromate concentration exceeding 0.05 mols. per litre, a sulphate concentration exceeding 0.2 mols. per litre and a hydrogen ion concentration controlled by a buffer agent or agents with the pH range 4-6 as measured by a glass electrode, the constituent salts of the bath being so selected that within the pH range their cations remain in stable solution and the upper limits for the dichromate and sulphate concentrations corresponding to saturation point in the particular solutions used and temperature of use. The required dichromate content may be provided by the dichromates singly or mixed of hydrogen, lithium, sodium, magnesium or potassium and the sulphate concentration by the sulphates alone or mixed, of hydrogen, lithium, sodium, magnesium or potassium. An ammonium salt may be used to supply the whole or part of the dichromate or sulphate or both. For cold solutions the buffer agent comprises single or mixed acids or single or mixed salts of the acids and preferably of acetic, propionic, butyric, valeric, malonic, succinnic, glutaric, adipic, penolic or pthalic acid, the cations of the salt being those of lithium, sodium, magnesium, potassium or ammonium, and for hot solutions single or mixed acids or single or mixed salts of these acids such as caproic, oenanthic, malonic, succinnic &c. and the cations of the same elements as before. Alternatively the cations may be chosen from the group consisting of tetra methyl ammonium ions, tetra ethyl ammonium ions and N methyl-pyridinium ions. Specifications 287,450, 305,197, 331,853, [all in Class 82(ii)]. 353,415, 450,589, 482,689, 506,836, 510,353, 510,487; 550,175 and 550,176, [both in Group XXXVI], are referred to.
Patent GB-254221-A (GB)
Title: Improvements in and relating to detachable soles and heels for boots and shoes
IPC: A43B13/28
Filed: 1926-02-17
Abstract: 254,221. Atkinson, A. Feb. 17, 1926. Protectors, securing.-The repair of soles and heels of boots and shoes by unskilled persons is facilitated by providing complementing light metal frames, one pair inserted in the outer sole and top left of the heel and the other pair in the corresponding permanent parts of the boot and secured together by screws. A metal frame d, Fig. 1, lies between a welt a and a through sole b perforated to accommodate internally threaded tubes d<1> which receive screws f passed through detachable wearing surfaces constituting the outer sole and heel top. The outer soles and heel tops are made to standard sizes and fitted with the metal frames inserted in grooves or moulded therein away from the edge. The outer frames may have plain screw holes only, or may have plain or threaded bosses projecting into the wearing layer. The frames may be in one or more parts, and the outer ones may be conical in cross-section.
Patent GB-458540-A (GB)
Title: Cutter chains for mining machines
IPC: E21C25/28
Filed: 1936-02-14
Abstract: 458,540. Mining-machine cutter-chains. LEE, A. L., 527, Virginia Avenue, Oakmont, Pennsylvania, U.S.A. Feb. 14, 1936, No. 4566. Convention date, March 30, 1935. [Class 68 (i)] [See also Group XXV] In a cutter-chain for mining-machines comprising bit-carrying links and connecting links alternately arranged and with yoke and eye connections, a sprocket tooth receiving recess is provided in both types of link, and each eye has forward and rearward surfaces of equal radius to provide bearing for the sprocket teeth, while the yokes embracing the eyes have edges curved to a shorter radius so that a smaller amount of metal has to be removed at the base of each eye. Bit-carrying links 2 carry at each end yokes 4 embracing eyes 5 at the ends of connecting links 3 ; the links are connected by hardened pins with bores containing heavy wires 7 which are deflected into registering grooves. Each eye has opposite curved surfaces 5<a>, 5<b> of equal radius and forming the ends of the throats receiving the sprocket teeth 19 ; the curved ends 4<a> of the yokes have a smaller radius. The links have apertures 20, 26 permitting passage of dirt, and a cross-bar 21 in the bit-carrying links prevents entry of broken cutters and may be notched to receive the cutter. The eyes may be provided on the bit-carrying links and the yokes on the connecting links, or each link may have a yoke 4 at one end and an eye at the other end.
Patent GB-177341-A (GB)
Title: Driving gear for circular saws
IPC: B23D45/00
Filed: 1921-02-09
Abstract: 177,341. Wagner (nÚe Stadelmeyer), L. Feb. 9, 1921. Circular-saw machines.-The spindle i of a circular-saw is driven by two oppositely-handed worms b, c on the driving-spindle a. The singlethreaded right-handed worm b drives direct, gearing with a worm-wheel fast on the spindle i, whilst the left-handed worm c, which is double or multiple-threaded, drives through a worm wheel e and reducing gearing.
Patent GB-181418-A (GB)
Title: Improvements in two-stroke internal combustion motors
IPC: F02B25/00
Filed: 1921-02-09
Abstract: 181,418. Page, G. B. Feb. 9, 1921. Two-stroke-cycle engines.- The invention relates to an engine having three cross-connected cylinders each of two diameters and in which scavenging-air is supplied to a combustion space from a crank chamber coaxial therewith, combustible mixture being compressed in annular pump spaces cross-connected to the combustion spaces. According to the invention the inlet ports to the annular pump spaces and to the crank chambers are controlled by the pistons. The cylinder shown in Fig. 1 comprises scavenging-air inlet ports and exhaust ports 9, 10 respectively, pump inlet and outlet ports 13, 14 in the annular space 1 and an air inlet port 15 in the crank chamber. Combustible mixture enters the combustion chambers through a mechanically-actuated valve 12 in its head.
Patent GB-769403-A (GB)
Title: Improvements in or relating to methods of and apparatus for contacting liquids with gases
IPC: B01F15/02
Filed: 1954-02-17
Abstract: <PICT:0769403/III/1> <PICT:0769403/III/2> In apparatus (Fig. 6) suitable for concentrating spent sulphuric acid containing iron sulphate with hot gases containing SO2 or SO3, the gases are passed through a series of chambers each having an open-ended cylindrical member surrounding a central gas inlet pipe 9, the annular body of liquid within each member 1 being rotated by the gas.  Solids precipitated are removed by a screw 20.  In apparatus (Fig. 8) for selectively absorbing SO3 from gases containing steam by using aqueous H2SO4, the gases stream through a glass or quartz tower 12 from the bottom to the top.  The tower 12 is divided into a series of compartments by plates 13 placed on projections 14 and carrying caps 15, the arrangement being such that while an annular body of liquid is formed around each cap some liquid is allowed to trickle down the tower.  Aqueous sulphuric acid is fed to the top of the tower through pipe 16.  Gases rising up the column pass successively through the annular bodies of liquid around each cap, each body of liquid being rotated.
Patent GB-1048852-A (GB)
Title: Polyurethane foam
Inventor: SZABAT JOHN FRANCIS
IPC: C08J9/00
Filed: 1965-02-03
Abstract: Cellular polyurethanes having open cells are prepared by reacting a blowing agent, a polyhydric polyalkylene ether and an organic polyisocyanate with from 0.25-5.0 parts by weight per 100 parts of said ether, of a siloxane oxyalkylene block copolymer and from 0.01-2.0 parts by weight of a polyalkyl ester of an acrylic acid. There may additionally be present an inert solvent and/or a catalyst of the amine or organo-tin type.  Blowing agents may be hydro- or halocarbons, or water. Many suitable ethers, isocyanates and siloxanes are specified.
Patent GB-594147-A (GB)
Title: Improvements in tiles or units for filters and contact beds
IPC: C02F3/10
Filed: 1945-02-26
Abstract: 594,147. Filter beds. GOLDTHORPE, H. H., and NIXON, J. Feb. 26, 1945, No. 4725. [Class 46] [Also in Group X] A filter bed is formed by tiles a cut away at a<SP>1</SP>, having feet a<SP>4</SP>, and provided with recesses a<SP>2</SP>, a<SP>3</SP> in their upper and lower faces, respectively. The top tiles are formed without recesses a<SP>2</SP>, but ridges are provided to position the feet of superposed tiles where two courses of top tiles are laid. Specifications 29032/09 and 8461/11, [both in Class 87 (i)], are referred to.
Patent GB-1143182-A (GB)
Title: Granulation of thermoplastic materials
Inventor: TREU JAMES FREDERICK
IPC: B29B9/06
Filed: 1966-02-03
Abstract: 1,143,182. Extrusion pelletizers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Jan., 1967 [3 Feb., 1966], No. 4804/66. Heading B5A. An under-liquid extrusion pelletizer comprises a die plate 10 separated from a multiorificed face plate 14 by a thermally insulating layer 13, e.g. of asbestos, the material to be pelletized being extruded via conduits 15 which are in thermal contact with die plate 10 and insulated from face plate 14 by asbestos washers 19. The emergent material is cooled by liquid 22 and cut by a series of rotating knives 20 (one shown) to form spherical pellets 23. Die plate 10 is heated by flow of hot fluid, e.g. steam, in ducts 12. Conduits 15, which may be of mild steel, have linings 16 of P.T.F.E., preferably glass fibre reinforced P.T.F.E., nylon or ceramics. Liquid 22 may be water, preferably demineralized or distilled, with possibly the addition of sodium nitrite as a corrosion inhibitor, or may be a glycol-water mixture. In a modification, Fig. 3 (not shown), conduits 15 are integral with die plate 10. Also, face plate 14 may be curved and the path of the material may diminish in crosssection between plates 10 and 14. The apparatus is particularly intended for the pelletization of polypropylene. Other materials mentioned are high and low density polyethylene, ethylene/vinyl acetate copolymers, poly-4- methyl-pentene-1, polybutene-1, nylon and polyethylene terephthalate.
Patent GB-1377526-A (GB)
Title: Photopolymerised glass-fibre-reinforced plastics material
IPC: C08F283/01
Filed: 1972-02-02
Abstract: 1377526 Glass fibre laminates REICHHOLD-ALBERT-CHEMIE AG 2 Feb 1972 [3 Feb 1971] 4823/72 Heading B5N [Also in Divisions D1 and B2] Laminates comprise an unsaturated polyester resin containing as photoinitiator 0À1 to 5À1. by weight of benzoin etherified with a primary or secondary alcohol or with a phenol is reinforced by glass fibres and crosslinked by light irradiation. The resin comprises 55 to 60% of the total wt. of the product. The glass fibres may comprise a roving, non-woven mat a woven fabric with a linen or twill weave or a mock lens fabric. One resin-fibre layer may be laminated to a second with the resin and/or coated on one or both sides with a pigmented or unpigmented lacquer comprising unsaturated polyester, alkyd alkyd-melamine or acid curable urea resin or one or two component polyurethane. In one example 67 parts of resin produced from 2 moles maleic anhydride, 1 mole phthalic anhydride and 3À08 moles propane-diol is mixed with 38 parts by weight of styrene, stabilized with 0À014% hydroquinone and mixed with 1À5 parts by weight of benzoinethyl ether. In a second example tetrachlorophthalic anhydride is used. Lists of polyhydric alcohols, saturated and unsaturated dicarboxylic acids, copolymerizable vinyl compounds, benzoin ethers, hydroquinone stabilizers, #-γ-unsaturated ether alcohols such as trimethylolpropane-diallyl ether for rendering the resin air drying accelerators, e.g. cobalt octoate, and perbenzoate, peroxide or azobis-isobutyronitrile catalysts are given. Preferably the resin is pre-gelled by irradiation with super-actinic fluorescent lumps for 60 to 280 seconds followed by brief irradiation under high pressure mercury vapour lamps for 20 to 80 seconds per mm. thickness. Tungsten and Xenon lamps and sunlight are mentioned. The photo-curable liquid resin may be spread uniformly upon a release coated sheet, the glass fibre reinforcement place on top, a release coated plastic film added, air squeezed out with a roller and the resin photo-cured. Alternatively two glass fibre mats bound with polyester resin are placed upon a release coated polished aluminium sheet, the photo-curable resin added, the laminate covered by a release coated transparent film and U.V. light applied for 250 seconds from high pressure mercuy lamps. The products may be laminated to chipboard, blackboard or pywood on both sides.
Patent GB-274029-A (GB)
Title: Improvements in or relating to anchor davits
IPC: B63B21/22
Filed: 1927-02-21
Abstract: 274,029. Schauman, B. M. July 6, 1926, [Convention date]. Davits.-An anchor davit and operating gear therefore, shown in plan in Fig. 1 and in side elevation in Fig. 3, comprise a pair of spaced channel-section guides 7, Fig. 6 for a carriage 10 which is traversed by screw gear including a worm 15 engaging a nut 14 which is attached to the carriage and extends through a slot in one of the guides. The davit 33 from which the anchor depends is pivotally supported at its lower end to the carriage, and when fully inboard is inclined inwards or rests with its head on the carriage. When the anchor is to be cast, a weighted lever 72 is thrown over to the right and lowers the anchor chain 28 into engagement with sprocket 22. During the outboard travel of the carriage the upward swinging of the davit under the weight of the anchor head is prevented by guide sheaves 36 thereon engaging beneath the upper walls of the carriage guides until these pins come into alignment, with notches 62 when the upward swing of the davit is initiated by shoulders 41 on the pivoted end of the davit engaging with stops 67 on the arms of the bracket 64. During this swing, the pivot axis 37 on the end of the carriage comes into engagement with notches 65 and a latch dog 58. Fig. 1, engages in a notch 62 of the channel guides to lock the carriage in position. As the chain continues to pay out, the davit swings downward until the pivoted end engages the stops 66 on the bracket 64. This movement causes pins 40 on the pivoted end to engage in seats 47 in the voke member 46 to raise this member to a vertical position and support the chair in an elevated position above the anchor. In bringing the anchor inboard, the recovery of the anchor chain swing the davit from a horizontal outboard position to a vertical position by the engagement of the loop 30 in the notches 32, the anchor shaft during this movement moves upwardly through a slot 56 in a plate 51 and moving this plate inwardly upon the carriage 10. During the inward and downward swing of the davit pins 42 engage fingers 45 on a plate 44 and bring the plate upwards beneath the head of the anchor.
Patent GB-604136-A (GB)
Title: Modification of marine animal oils
IPC: C11C3/10
Filed: 1945-02-27
Abstract: Marine animal oils having iodine values not substantially less than 130 are chemically modified and separated into solid and liquid glyceride fractions suitable for use in the soap and drying oil industries respectively, by subjecting them to a process of catalytic intermolecular rearrangement as described in the parent Specification and separating the simple solid saturated triglycerides thus formed from the simple liquid unsaturated triglycerides by winterizing, fractional crystallization from a solvent, or solvent extraction with a selective solvent.  The alcoholate catalyst (such as sodium methoxide) is destroyed by intimately contacting the modified oil with a dilute acid after the required amount of rearrangement has been obtained and before the separation of the liquid and solid fractions.  The liquid fraction is superior to the original oil for use in the drying oil industries in that it dries to a clear dry film and remains clear after "bodying," even when allowed to stand for weeks at room temperature, whereas marine animal oils produce sticky turbid films and form typical "polymer clouds" at ordinary temperatures after winterizing and bodying.  The solid fraction is superior to the original oil for soap-making because its lower content of unsaturated fatty acids reduces the tendency for the soap to be highly susceptible to oxidation and development of rancidity. Thus, the necessity for hydrogenating the original oil to very low iodine values with the disadvantages of the soaps produced therefrom having limited solubility and poor detergency, can be avoided.
Patent GB-1188595-A (GB)
Title: Improvements in or relating to apparatus for the distribution of gas in a vesel
Inventor: HOGGARTH MALCOLM LESLIE
IPC: B01J8/44
Filed: 1968-01-31
Abstract: 1,188,595. Mixing and aerating. GAS COUNCIL. 24 Jan., 1969 [31 Jan., 1968], No. 4958/68. Addition to 1,036,890. Heading B1C. [Also in Divisions F4 and G3] The means described in the parent specn. for distributing gas uniformly through the floor of a vessel 1 is adapted for use in a vessel having a sloping, curved or undulating floor 2. Such a vessel may contain for example a powdered solid which is fluidized by the gas. The modification consists in forming the gas conduits 7 by means of intersecting walls 3, 4, said walls being so spaced that the ratio between the cross-sectional area of each conduit and the mean height of the wall elements defining that conduit, remains constant across the assembly. The number and position of the gas inlet apertures in the grid plate 6 is arranged to ensure the desired gas flow in the conduit 7. In the form shown the vessel 1 is circular and the floor 2 is frusto-conical. A further arrangement is described (Fig. 2) for a rectangular vessel with a sloping floor. As described in the parent specn., the conduits 7 contain particulate material to aid the even distribution of the gas.
Patent GB-511443-A (GB)
Title: Improvements in or relating to lighting units
IPC: F21V21/00
Filed: 1938-02-17
Abstract: 511,443. Taking-up slack of flexible conductors. STILLMAN, C. G. Feb. 17, 1938, No. 4968. [Class 78 (ii)] [Also in Group XI] A lighting unit which can be used for inspection purposes or as a bed-head lamp comprises a lamp attached removably to a bracket 13, and a casing 10 containing flex 27 which passes over a fixed pulley 33 and beneath a pulley 30 movable in an extension 21 of the casing. The lamp may be engaged with the forked end 14 of the bracket 13 so that the light is projected upwards or downwards. The pulley 30 is mounted on a counterweight 32 having a rubber bumper 43 on its lower face which engages a rubber stop 44 on an adjustable angular bracket 45. The flex is secured to a base 25 and is passed through a cord grip 29 mounted on an angular bracket 29a. The flex leaves the casing through a non-fraying guide 35 and passes through a sleeve 36 in the handle 18 provided with a screw 38 for earthing purposes. A stop 42 on the flex determines the amount of flex without the casing when the lamp is on the bracket.