baber/WOPTO huggingface dataset:
Patent GB-829475-A (GB)
Title: Hydrogenation catalysts
Inventor: FLEMING HAROLD WILLIAM
IPC: C07C5/08
Filed: 1958-05-08
Abstract: A shaped catalyst, for use in selective hydrogenation of acetylene in presence of olefins, comprises finely divided cobalt-molybdena (in an amount of 2.5-15% by weight of the catalyst), and a carrier containing 20-85% hydraulic cement and 10-50% bonding clay and preferably up to 40% alumina.  The molar ratio of cobalt to molybdena is 1 : 3-3 : 1, preferably about 1 : 1.6, but particularly 1 : 1, the cobalt-molybdena then being in such form as to have a spinel type crystal structure (due possibly to Co2MoO4 or Mo2CoO4) after reduction, especially of lattice spacing about 8.46   as determined by X-ray diffraction.  A material having the crystal structure may be prepared by reaction of ammonium paramolybdate with cobalt sulphate (equimolar proportions of Mo and Co) and neutralization with NaOH to pH 6.5-6.9.  The catalyst carrier particularly comprises Portland cement, ball clay and alumina, but the ingredients may be, other than these, kaolin, refractory clays, hydraulic and aluminous cements, besides, e.g., magnesite or talc.  The catalyst composition is pelleted with graphite and reduced with hydrogen before use; regeneration may be effected by air and steam at 750-120 DEG  F. and subsequent reduction with hydrogen.ALSO:A cobalt-molybdena catalyst (cobalt-molybdena content 2.5-15%) of which the carrier material comprises hydraulic cement, bonding clay and alumina, is used to selectively hydrogenate acetylene in the presence of olefins.  In examples, it is shown that (a) in presence of 4.4% cobalt-molybdena catalyst, the acetylene content of a gas was reduced from 0.4% to about 15 parts per million under conditions of pressure 85 p.s.i.g., space velocity 600 (computed at 60 DEG  F. and 14.7 p.s.i.g.) and 450-500 DEG  F., while less than 1% of olefins present were hydrogenated, the test being conducted for 51 hours; (b) using a 10% cobalt-molybdena catalyst, virtually all acetylene (critically 0.2%) was removed from a gas without undesirable hydrogenation of olefins at space velocity about 1000, 450-500 DEG  F. and 200 p.s.i.g. during eight days; (c) as in (b) at the end of the eighth day one grain COS was added per 100 cu. ft. of gas measured under standard conditions, and the effluent contained less than 20 p.p.m. acetylene, no hydrogenation of olefins occurring, the duration of the test being an additional 8 days; (d) the catalyst of (a) used at space velocity 1000, 450-600 DEG  F. and 85 p.s.i.g. for a gas containing initially 0.4% acetylene and 16 p.p.m. S as COS, reduced the acetylene content thereo to 10-55 p.p.m. (total test period 100 hours), only 0.6% mol. of olefins being hydrogenated.  The gas used in these tests contained ethylene 20.3-33%, propylene 1.2-6%, butene 0.2%, butadiene 0.5%, CO 1.2-1.4%, H2 21-29.4%, CH4 33.9-44.1%, acetylene 0.2-0.4% and additionally 0-5.5% water vapour.
Patent GB-1223659-A (GB)
Title: Improvements in or relating to electric devices
IPC: F21V23/02
Filed: 1969-03-20
Abstract: 1,223,659. Fluorescent lamp housing. ZUMTOBEL K.G. 20 March, 1969 [1 April, 1968], No. 14815/69. Heading F4R. [Also in Division H1] An electrical device comprising at least one heat producing element is rendered dampproof using a foam plastics material as a sealing compound, the plastics foam being hardened under pressure with the heat producing element or elements held against a wall of a mould used in the process, at least during the foaming and curing of the material. In the embodiment, polyurethane foam hardened under pressure by carbon dioxide is used in the housing for the starting gear of a fluorescent lamp. The housing comprises a U-shaped metal sheet to which the choke is bonded. The housing is covered by a plate and sufficient reactant added to the cavity to more than fill the cavity with foam thus ensuring that the foam hardens under its own pressure. It is preferred that the metal sheet be held in a mould during foaming. Alternatively the metal housing may be dispensed with and the devices have foamed plastics formed about them in a mould. Transformers, resistances and/or transistors are also mentioned.
Patent GB-250056-A (GB)
Title: Improvements in can openers
IPC: B67B7/70
Filed: 1925-06-08
Abstract: 250,056. Chase, R. T. May 4, 1925, [Convention date]. Opening by cutting.-A can opener comprises a frame having thereon guides 2, 7 engaging the upper edge of the can to be operated upon, a guide 3 engaging the side, a traction wheel operated by a handle 6 and adapted to engage the underside of the bead b at the top of the can, and a shear blade pivoted to the frame at 8 and having a piercing point 11 and a blunt cutting edge 10. The rear inner part of the 'blade presses the cut edge flat against the body of the can.
Patent GB-185199-A (GB)
Title: Improvements connected with weighing apparatus
IPC: G01G1/00
Filed: 1921-05-28
Abstract: 185,199. Pooley & Son, Ltd., H., and Dobson, J. May 28,1921. Platform machines.-A weighing-machine of the platform type for automatically indicating when a load is correct is fitted with a " followup " pointer which is gripped and' held bv mechanism under the control of clock-work timing-gear during the period that the machine is idle, and indicates the amount by which the last weighed article is above or below the correct weight. The major part of the load is balanced by a steelyard 13, Fig. 1, pivoted on a bracket 14 and provided with a sliding poise-weight 13a, which is set at the correct weight of the weighed article. The minor part of the load is balanced by a pendulous resistant 23 pivoted on a bracket 22 and connected to the steelyard by a rod 22 through a broken link lost-motion device 28. The movement of the pendulum is communicated tn a pointer 16 and to a " follow-up " pointer 17 by an arm 26. When an article is placed on the platform the end 13b, Fig. 6, of the steelyard is depressed and allows the bell-crank lever 29 to turn, and the consequent movement of a connecting-rod 31 causes a pawl 33 to disengage a disc 34. The disc 34 is rotated bv clockwork timing-gear through one complete revolution when it is checked by a pawl 32. Eccentrically pivoted on the disc 34 is an arm 37 attached to one end of a lever 38, the other end of which actuates a toggle gripping-device 42, Fig. 8. As the disc 34 revolves, the sector 43 attached to the pointer 17 is released, allowing the pointer to take up its position, and is then re-gripped. When the article is removed from the platform the pawl 32 disengages the disc 34, but motion is prevented by the pawl 33.
Patent GB-1210172-A (GB)
Title: Improvements in or relating to reeling of strand material
Inventor: HAUCK LEON PAUL
IPC: B65H67/056
Filed: 1968-03-28
Abstract: 1,210,172. Continuously winding up strand material. WESTERN ELECTRIC CO. Inc. 28 March, 1968 [29 March, 1967], No. 14855/68. Heading D1J. A strand winding apparatus comprising a pair of take-up reels 22, 23 in spaced axiallyaligned relationship, has a strand traversing device 21 that normally traverses the whole length of a reel 22 but when the major portion of a predetermined length of a strand has been wound up the traverse path is restricted to an area of the reel 22 that is near the other reel 23. The traversing device 21 then moves over to commence the traversing of the strand onto the other reel 23, the strand sliding over an intermediate guide 32 covering the upper periphery of snagger plate 28, 38 carried by the reels, thence over a lower narrower guard 33. Thereafter strand material intermediate the reels 22, 23 passes to a zone where it is snagged by the snagger plates 28, 38. During full traversing, the motion of the traverse 21 is controlled by spaced microswitches LS1L and LS2L but when the motion of the traverse is to be restricted a further limit switch LS1LL takes over from the switch LS1L to limit the traverse motion. The instant at which the further limit switch LS1LL has to be brought in is determined by a pulse generator (17) Fig. 1 (not shown), giving an output signal when said major length has been reeled. The speed of a take up spool is controlled electrically by a rheostat (27) responsive to the state of a strand accumulator.
Patent GB-233181-A (GB)
Title: Improvements in and relating to the manufacture of transparent artificial horn
Filed: 1924-06-19
Abstract: In the production of artificial horn from casein moistened with a small quantity of aqueous liquid by the application of pressure, kneading, and heat, fat solvents which are not readily volatilized are added to the casein mixture for clarifying purposes.  Suitable solvents consists of alkylated amines, particularly those containing also methyl groups, and balsams such as Canada Balsam. From 0.5 to 2 parts of the solvent to 100 parts of casein is stated to be a suitable proportion.
Patent GB-553506-A (GB)
Title: Improvements in and relating to colour forming developers and processes of colour development
IPC: G03C7/384
Filed: 1941-11-20
Abstract: 553,506. Pyrazolone derivatives. KODAK, Ltd. (Eastman Kodak Co., Porter, H. D., Vittum, P. W., and Weissberger, A.). Nov. 20, 1941, No. 14935. Drawings to Specification. [Class 2 (iii)] [Also in Group XX] 1 - (2<SP>1</SP> - Benzthiazolyl) - 3 - hydroxy - 5 - iminopyrazolone is prepared by refluxing together ethylcyanoacetate and 2 - benzthiazolylhydrazine in the presence of sodium ethylate and acidifying, or by adding cyanoacetamide to a solution of 2-benzthiazolylhydrazine in dioxane to give #-cyanoacetyl-2- benzthiazolylhydrazine and refluxing the latter in sodium methylate solution and acidifying. 1 - (α - quinolinyl) - 3 - - hydroxy - 5 - imino - pyrazolone and 1 - (α - pyridinyl) - 3 - hydroxy - 5 - iminopyrazolone also used as couplers in colour photography are similarly prepared.
Patent GB-474796-A (GB)
Title: Process for the manufacture of dyed cellulosic materials
IPC: D04B15/64
Filed: 1937-05-27
Abstract: Substantive dyes, dyeing with; regenerated celluloses, dyeing.--Cellulosic materials other than textiles, e.g. paper, pasteboard, films and sponges of regenerated cellulose, straw, cellulose pulp, linters and cottonwool, are dyed with sulphonic acids of phthalocyanines.  In examples, (1) bleached sulphite cellulose pulp is dyed with the sodium salt of the product of sulphonation of copper phthalocyanine (cf. Specification 322,169, [Class 15 (ii)]), with 30 per cent fuming sulphuric acid and may then be sized with resin soap and aluminium sulphate and worked up into an evenly dyed brilliant blue paper; alternatively ready made paper may be dyed by dipping it into or passing it through an aqueous solution at 40 DEG C., of the sodium salt of the sulphonated dyestuff; the sulphonated iron, nickel, cobalt and aluminium phthalocyanines (cf. Specification 410,814) may similarly be used; (2) a film of regenerated cellulose is dyed a clear greenish blue by passing it through an aqueous solution at 100 DEG  C. containing glycerol and the sodium salt of a sulphonated metal-free phthalocyanine and drying.
Patent GB-254695-A (GB)
Title: Process for increasing the strength and elasticity of vegetable fibres and products manufactured therefrom or for crinkling same
IPC: D06M11/38
Filed: 1926-06-15
Abstract: 254,695. Dubac, O. July 2, 1925, [Convention date]. Yarns, treating with liquids; fibres, treating.- New and more durable effects are produced on vegetable fibres, especially cotton, raising their strength and elasticity, increasing their crinkliness, and reducing their tendency to shrink, by treating with strong caustic soda of from 50- 125 BÚ at a temperature of 60-100 C. or higher. The effects vary with the nature of the vegetable fibres treated, and when applied to the fibres in fabric form the product obtained may resemble wool, silk, or linen according to the nature of the weave.
Patent GB-1112973-A (GB)
Title: Connector devices for axially displaceable members
Inventor: MOWBRAY DORIAN FARRAR
IPC: F16K3/26
Filed: 1965-04-09
Abstract: 1,112,973. Valves; rod couplings. JOSEPH LUCAS (INDUSTRIES) Ltd. 4 July, 1966 [9 April, 1965], No. 15136/65. Headings F2G and F2V. A spool valve 13 working in a ported sleeve 11 has a lost-motion connection to its operating stem 14 via a deflectable rod 17 brazed into threaded members 16, 18 carried by the spool and stem respectively. Upward movement of the stem places the rod in tension and the latter transmits all movements of the stem to the spool. Downward movement of the stem deflects the rod and the stem moves relative to the spool until its lower end abuts the upper end of the spool. As shown, the spool is biased upwardly by a spring and the lower end wall of the spool has passages 15 therethrough. In the alternative embodiment of Figs. 3 and 4, not shown, members 16, 18 are replaced by members (20, 21) which extend beyond the adjacent faces of the spool and stem, respectively, and are normally separated by a small clearance (23). In either embodiment, the rod 17 accommodates axial misalignment between the stem and the spool or between the threaded members.
Patent GB-1130245-A (GB)
Title: An improved process for the preparation of vinyl esters
Inventor: ARPE HANS JUERGEN
IPC: C07C69/02
Filed: 1967-04-03
Abstract: 1,130,245. Vinyl esters. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 3 April, 1967 [5 April, 1966], No. 15182/67. Heading C2C. [Also in Division B1] Vinyl esters of carboxylic acids are prepared by reacting the carboxylic acid in the liquid phase with acetylene at between 200‹ and 300‹ C. in the presence of a zinc salt of the carboxylic acid and a metal-containing Lewis acid as catalysts. The liquid phase may be molten zinc carboxylate or a high-boiling solvent and the Lewis acids may be the halides, sulphates or phosphates of metals such as lithium, beryllium, zinc, palladium, boron, aluminium, gallium, cerium, iron, chromium, zirconium, or uranium, iron, aluminium and didymium or mixtures thereof. Acetic, propionic, isobutyric, pivalic, palmitic, stearic, benzoic, and isophthalic acids and those prepared by Koch synthesis (5-9 C) may be vinylated.
Patent GB-119560-A (GB)
Title: Improvements Connected with Electric Battery Lamps.
Inventor: HELLYAR WILLIAM ALBERT STANLEY
IPC: F21L4/00
Filed: 1917-10-19
Abstract: 119,560. Hellyer, W. A. S. Oct. 19, 1917. Battery lamps.-In a portable lamp, a switch arm carrying the bulb is mounted on one battery terminal and can move so as to bring the bulb into or out of engagement with a contact which is attached to the non-conducting casing of the battery and forms the second terminal, the usual metal casing being dispensed with. As shown, the rotary switch arm a is loosely held by a binding-nut b on the carbon terminal of the cell. Alternatively, the switch arm may be mounted on the contact plate g and move into contact with the carbon terminal. A handle h of rope, leather, cane, &c., may be embedded at its ends in the pitch sealing the cell, or may be detachably fastened by hooks and eyes. Several cells may be employed, placed one above another or side by side. Three cells or batteries may be arranged triangularly with their carbon terminals all connected to a pin on which the switch arm is mounted, their other terminals consisting of separate plates facing outwards, so that the lamp can be connected to any one of the cells.
Patent GB-581053-A (GB)
Title: Improvements in or relating to embroideries
IPC: D05C17/00
Filed: 1944-08-10
Abstract: 581,053. Embroidery. MICHEL; H. J. Aug. 10, 1944, No. 15286. [Class 112] Embroidery resembling lace is produced by connecting at least two layers of foundation fabric by embroidery work, one of the layers being of tulle or other open-weave fabric and the other of muslin or other light-weave fabric. Either layer may be uppermost, or a layer of open-weave fabric may be used on both sides of the light-weave fabric; a looped fabric produced by plain or fancy knitting may be used in place of the light-weave fabric. The fabrics may be coloured.
Patent GB-479410-A (GB)
Title: Process and device for the desulphurizing of combustible gases
IPC: C10K1/32
Filed: 1937-06-02
Abstract: Combustible gases are desulphurized by oxidizing hydrogen sulphide to sulphur with the aid of catalysts consisting of active carbon impregnated with iron oxide at temperatures about 20--60 DEG  C., preferably between 25 and 45 DEG  C.  The supports are in the form of granules, preferably cylindrical, and the catalyst, when filled with sulphur, may be revived by liquid extraction or by treatment with superheated steam.  Preferably, the catalyst is prepared by boiling granules of active carbon in commercial ferric chloride until the salt has penetrated to the centre of the granules.  The granules are quickly washed, drained and treated with boiling alkali until precipitation is complete.  It is then washed, and may be further treated with superheated steam at 300--450 DEG  C. This treatment reduces its sensitivity to poisons and also its power of oxidizing carbon monozide, methane and hydrogen. Preferably the oxidation is carried out with two catalyst layers, with provision for cooling the gases between the layers and one-half of the air required is added before each catalytic layer.
Patent GB-1172712-A (GB)
Title: Alkylation Process.
Inventor: HERBER RAYMOND ROY
IPC: C07C2/62
Filed: 1967-04-04
Abstract: 1,172,712. Alkylating isoparaffins. UNIVERSAL OIL PRODUCTS CO. 4 April, 1967 [5 April, 1966], No. 15380/67. Heading C5E. A high-octane alkylate is produced by reacting an isoparaffin with an olefin under substantially anhydrous conditions and in the presence of a catalyst comprising an admixture of substantially anhydrous HF and less than 25 wt. per cent of an organic diluent comprising the reaction product of isobutylene and substantially anhydrous HF and having a M.W. between 200 and 500. The catalyst may contain up to 1% of water. Preferred reactants are isobutane and a mixture of C 4  olefins, but other reactants are mentioned.
Patent GB-715995-A (GB)
Title: Improvements in or relating to resinous compositions
Inventor: EMERSON WILLIAM STEVENSON
IPC: C08K5/103
Filed: 1952-06-19
Abstract: Polyvinyl chloride or copolymers of at least 70 per cent. by weight of vinyl chloride with another monomer are plasticized with a mixture of esters made by completely esterifying diethylene glycol with a mixture of acids consisting of an aliphatic mono-olefinic monocarboxylic acid having from 10 to 20 carbon atoms in the molecule and benzoic or toluic acid, or a mixture of benzoic acid and toluic acid or a mixture of toluic acids at least 10 per cent. but less than 50 per cent. by weight of the mixture of acids being aliphatic mono-olefinic acid.  Specified mono-carboxylic acids are decenoic, undecenoic, palmitoleic, elaidic and oleic acids.  The other monomer may be vinyl acetate or vinylidene chloride.
Patent GB-312082-A (GB)
Title: Improvements in and relating to stroboscopic apparatus
IPC: H05B41/34
Filed: 1929-05-17
Abstract: 312,082. British Thomson-Houston Co., Ltd., (Assignees of Compagnie Franþaise pour l'Exploitation des ProcÚdÚs Thomson- Houston). May 18, 1928, [Convention date]. Stroboscopic apparatus. - Stroboscopic illumination is provided by a lamp, such as a Neon lamp, energized by means of sinusoidal current waves having steep and acute points of maximum and minimum tension, at which points only the lamp is illuminated. A transformer having a core 10 and primary and secondary windings 11, 12 has portions 13 of its core 10 reduced in area so that they become saturated with a small percentage of the normal flux of the transformer. A reactance 15 is provided in the primary circuit. An impressed alternating current having a sinusoidal tension I, J, Fig. 1, is transformed into the deformed secondary tension V having a sharp peak D at every half period. Alternatively a Neon lamp may be illuminated from the secondary winding of a synchronously operatea. magnet O giving an acute tension curve.
Patent GB-753081-A (GB)
Title: Improvements in or relating to suspension devices for display frames
IPC: A47G1/18
Filed: 1954-05-26
Abstract: 753,081. Hanging pictures &c. on walls. LEHNI, R., and KELLER, F. May 26, 1954 [May 27, 1953], No. 15594/54. Classes 52(1), 52(2) and 52(4). [Also in Group XV] Resilient edge clips for a frameless picture, mirror, &c., have limbs 3, 4 at right angles to each other, the limb 4 having a bent end 4a engaging over the transparent front plate 2 and the limb 3 having bent lugs 5 which engage in a groove 9 on the rearface of the backing plate 1, a suspension loop 7 being pivotally mounted on the clip. Similarly shaped clips may also be used for suspending showcases.
Patent GB-1509245-A (GB)
Title: Process for polymerising aziridine compounds and initiators for use therein
IPC: C08G73/04
Filed: 1975-04-16
Abstract: 1509245 Polyamines ESPE FABRIK PHARMAZEUTISCHER PRAPARATE GmbH 16 April 1975 [19 April 1974] 15659/75 Heading C3R Aziridine compounds are polymerized using as initiator a compound of formula where R<1> is C1-18 alkyl, R<2> is C1-18 alkyl or C1-18 phenylalkyl, the alkyls being optionally substituted with an ester and/or ether group, R<3> and R<4> are H, C1_18alkyl and/or aryl optionally substituted with chloro, nitro or alkoxy, and the alkyl radical of R<3> or R<4> together with B can form a cycloaliphatic or heterocyclic ring, B is an electron attracting radical and A is a non-nucleophilic anion.
Patent GB-529280-A (GB)
Title: Improvements in or relating to closures for bottles, jars and like containers
IPC: B65D51/16
Filed: 1939-05-26
Abstract: 529,280. Closures for bottles and like. JONES, G. E. May 26, 1939. Nos. 15676 and 24378. [Class 125 (iii)] A stopper S for a bottle B or other container is made of resilient material and is tightly seated in the bottle neck. It has longitudinal apertures which can be closed by the insertion of plugs P, each of which has a stem 2 with an enlarged head 3 for entry into the stopper aperture, and a gripping head 4 at its outer end. The apertures have a cylindrical form with a wider diameter at the upper part than at the intermediate part, and the plug heads rest upon the shoulders thereby formed. In the form of stopper shown in Fig. 1 the aperture H is intended to receive a discharge tube while the other aperture H<SP>1</SP> holds an air inlet tube 5 retained by a flange fitting in the recess 6 at the bottom of the aperture. For transport and storage, the stopper and neck may be covered by a cap C of metal, viscose, synthetic resin or the like, which may be secured mechanically or by adhesion. Where the cap is made of thin or flexible material, a rigid sheet metal plate D is used to engage the outer heads 4 of the plugs; the plate has a dependent flange 12 to fit tightly round the flange 9 on the stopper. An additional hole 10 may be provided in the stopper and is normally sealed by diaphragms 11 near each end. The diaphragms are of puncturable material for the introduction of a hollow needle into the container. The heads 3 of the plugs may be pear-shaped or conical, and they may be inserted by the perforated plunger 19, Fig. 7, after the container has been vacuumized by a pump connected to the branch 22 from the barrel 13. Where only one aperture is provided in the stopper, the plug may be combined with the cap by riveting or by screwing.
Patent GB-951500-A (GB)
Title: Selective separation of hydrocarbon mixtures
Inventor: FUERST ERNST
IPC: C07C7/10
Filed: 1962-04-25
Abstract: Aromatic hydrocarbons are separated from paraffins by solvent extraction employing as selective solvent a N-hydroxyalkyl pyrrolidone and recovering the aromatics from the solvent. The alkyl group may contain 1-6 carbon atoms; N-hydroxyethyl pyrrolidone is preferred.  The solvent may contain 5-25% by volume of water based on the pyrrolidone and separation is effected continuously or batchwise at 5-60 DEG  C. preferably with vibration; a second parafinic solvent may be used.