baber/WOPTO huggingface dataset:
Patent GB-874593-A (GB)
Title: Production of acrylonitrile and methacrylonitrile
Inventor: BETHELL JAMES ROBERT
IPC: B01J27/057
Filed: 1959-02-14
Abstract: Acrylonitrile or methacrylonitrile are prepared by reacting at an elevated temperature in the vapour phase propylene or isobutene with oxygen and ammonia over an oxidation catalyst comprising a mixture of the oxides of molybdenum and cobalt, and/or a compound of molybdenum, cobalt and oxygen.  The catalyst may be deposited on a silica or alumina support and may also be admixed with a proportion of tellurium oxide.  The process may be carried out with a fixed bed or a fluidised bed of catalyst and the reactant streams may be diluted with inert gases such at nitrogen, propane, butane, isobutane, carbon dioxide and steam.  Reaction temperatures may range from 300 to 500 DEG C. and ammonia is preferably used in stoichiometric excess. Specification 709,337 is referred to.ALSO:Catalysts comprising a mixture of the oxides of molybdenum and cobalt, and/or a compound of molybdenum, cobalt and oxygen, are prepared (1) by mixing an aqueous solution of a cobalt salt with an aqueous solution or suspension of molybdic acid or a molybdic acid salt, adding ammonia or a water-soluble aliphatic amine such as ethanolamine to the aqueous mixture, drying the precipitate, and heating it to between 400 and 700 DEG C.; (2) by forming an aqueous solution of a cobalt salt and ammonium molybdate, heating the mixture until a precipitate forms, and drying and heating as in (1); and (3) by adding ammonia or a water-soluble amine to an aqueous solution of a cobalt salt, mixing the resulting precipitate with molybdic acid or a salt of molybdic acid and a volatile base either as such or as a solution or suspension in water, and drying and heating as in (1).  The catalyst may be optionally admixed with tellurium dioxide and, if desired, supported on a silica or alumina carrier.  Specification 709,337 is referred to.
Patent GB-326632-A (GB)
Title: Improvements in spiked or toothed lags for use in opening and feeding fibrous material
IPC: D01G15/88
Filed: 1929-02-16
Abstract: 326,632. Young, J., Young, W., and Young, R. M., (trading as Young & Sons, J.). Feb. 16, 1929. Feeding openers etc.; carding-engines; gins.- Spiked or toothed lags for lattice conveyers and cylinders of hopper bale breakers, hopper openers, hopper feeders, ginning machines, &c., are made by drawing or rolling strips of steel B from a blank such as A, Fig. 1, -and driving or pressing pins D into holes drilled therein. For lags wholly of metal, the strip which has a recess b, Fig. 2, is preferably drawn through one or more dies; whilst for lags with wooden linings E, Fig. 6, the strip B is preferably rolled, a taper section being formed by a succession of shaped rolls, the strip then being bent longitudinally. Specification 21137/07 is referred to.
Patent GB-944045-A (GB)
Title: Improvements in or relating to safety harness
IPC: B60R22/48
Filed: 1961-02-13
Abstract: 944,045. Controlling vehicles. J. C. W. BEADLE. Feb. 9, 1962 [Feb. 13, 1961], No. 5229/61. Drawings to Specification. Heading B7H. [Also in Division F1] The safety harness of a motor vehicle, which may be a belt, harness or a pair of arms which embraces the occupant, comprises a buckle which includes the poles of an electric switch in a circuit including an electromagnet which operates a safety device, e.g. a detent for preventing the gear lever, brake or ignition key from being operated unless the buckle of the device is fastened whereby the electromagnet is energized and the detent withdrawn. The detent may be in the form of a locking device engaging the ignition key, gear or brake lever, or in the form of a cover plate preventing the insertion of the ignition key and means may be provided whereby the circuit is broken and the device becomes inoperative after the vehicle has been started. The circuit may include seat switches rendering the device inoperative unless the seat is occupied.
Patent GB-1048846-A (GB)
Title: Improvements in and relating to the coating of metal surfaces with polyolefines
IPC: C09J5/00
Filed: 1964-02-07
Abstract: In a process for coating a metal surface with a polyolefin, the metal surface is first coated with an epoxy resin and a hardener therefor, and powdered polyolefin is then applied thereon by projection before the epoxy resin has completely hardened.  The polyolefin may be polyethylene, polypropylene or polybutylene.  In an example the sanded surface of a steel sheet was blade-coated with epoxy resin and hardener, partly hardened for 4 hours at 20 DEG C, then polyethylene powder was sprayed on, and the whole left for 24 hours to harden completely.  Subsequently further polyethylene powder was applied from a gun kept at a temperature above the melting point of the powder.
Patent GB-758033-A (GB)
Title: Improvements in or relating to the extraction of animal glue
IPC: C09H3/00
Filed: 1954-02-23
Abstract: Collager-bearing animal tissues, e.g. conditioned hide stock, are contacted with hot water which is kept at a substantially neutral pH by contacting an insoluble base to extract glue and avoid acidic conditions which would reduce its viscosity.  The hot water may contact the insoluble base in the presence of the tissues or remote therefrom.  The tissues may be acidulated in dilute hydrochloric, nitric, sulphuric, sulphurous, acetic or phosphoric acid at a pH value below 6.5, e.g. between 1.5 and 6.0 preferably between 2.0 and 2.5.  The acidulated tissues may then be separated from the dilute acid.  The insoluble base may be alumina or an alkaline earth carbonate, e.g. calcium carbonate or barium carbonate, or an ion-exchanger.  The tissues may be maintained internally at a pH value below 6.5 during the extraction, which may be effected in four steps at temperatures of 65, 75, 85 and 100 DEG C., respectively.
Patent GB-608350-A (GB)
Title: Improvements in display devices for use as sings, toys or for educational purposes
IPC: G09F7/06
Filed: 1946-02-20
Abstract: 608,350. Signs. JACKSON, L. A. Feb. 20, 1946, No. 5358. [Class 3(ii)] [Also in Group XV] In a display device for use as a sign, toy or for educational purposes, of the kind comprising a number of elements which may be built up into letters &c., by entering pegs on the back of each element into 'holes in a board, the elements are now each provided with at least two bluntended pegs or spigots of slightly larger diameter than the holes in the board, and the latter is made of resilient material to grip the pegs &c. As shown in Fig. 1, a board formed of millboard or cardboard, or of a layer of rubber on a rigid backing 10, is pierced with holes 11 arranged parallel to its sides, the rows of holes being spaced apart half the distance between the holes in the row. Elements 12, Fig. 3, for attachment to the board are moulded from a synthetic resinous material and carry metal pegs 13 moulded into the material. The pegs are preferably spaced apart by a distance equal to ten times the space between rows since a circle with the radius X, Fig. 1, passes close to a considerable number of holes and thus permits the elements to be mounted obliquely if desired. The elements 14 may be coloured or made of flexible material and each peg may terminate in a knob.
Patent GB-608361-A (GB)
Title: Improvements in straps for wrist watches or the like
IPC: A44C5/16
Filed: 1946-02-21
Abstract: 608,361. Watch straps; buckles. GRANT. J: Feb. 21, 1946, No. 5393. [Class 43] A watch strap, comprising two lengths of plastic or the like of single thickness, one end of one strap and each end of the other being bent back into a loop 3 and fastened down by a U-shaped strip of metal 4 having at each end spoon-shaped tongues 5 which pass through registering slits 6 in the two thicknesses of the strap, is characterised in that each fastener presents an ornamental bar 7 on the outside 'of the straps. The loops engage the bar of a buckle 8 and the metal loops of a watch. A rectangular frame 11 or length of wire forming a retaining loop, is also received in the loop containing the buckle bar; a similar retainer may slide on the strap.
Patent GB-975249-A (GB)
Title: Ketones and preparation thereof
IPC: C07C37/055
Filed: 1961-02-14
Abstract: The invention comprises compounds of Formula I <FORM:0975249/C1/1> wherein X is H, Cl, Br, F, NO2, NH2, NH alkyl, N alkyl2, C2-4-alkanoylamino, ZD or YR, Z is alkylene (up to C3), D is H, F, OH, O alkyl, NH2, NH alkyl, N alkyl2, C2-4-alkanoyloxy or C2-4-alkanoylamino, Y is O or S and R is H, alkyl, benzyl, tetrahydropyranyl or C2-4-alkanoyl; X1 is H, Cl, Br, ZH, ZF or YR; X2 is H, alkyl or YR; A and A1 are each H, alkyl or F; A2 is H, alkyl, CN, COO alkyl or COO benzyl; B is H, F or OH, but may not be OH when A is F. In the preceding definitions, "alkyl" contains 1-6 carbon atoms. Such compounds are prepared by treating a starting material of Formula III <FORM:0975249/C1/2> with oxalic acid ester in presence of a base; or, where R2 is OH, treating with oxalic acid ester in presence of a base, esterifying the resulting acid and treating the ester with a base to effect ring closure; and if desired, hydrolysing and decarboxylating the resulting ester.  The starting material may be formed by ring closure of a compound of Formula II <FORM:0975249/C1/3> Numerous examples are given.  Other forms besides the 10-enol shown in Formula (I) are possible; e.g. the 4-enol or the triketone.
Patent GB-297309-A (GB)
Title: Process and contrivance for the restoration of carbon-paper
IPC: B41L1/00
Filed: 1928-02-21
Abstract: 297,309. St÷ckel, B., and Tenspolde, M. von. Sept. 17, 1927, [Convention date]. No Patent granted (Sealing fee not paid). Carbon papers.-In a process for renovating carbon paper by heat, mechanical rubbing of the carbon surface is dispensed with and the process is performed at temperatures of from 60‹ to 80‹ C. A suitable apparatus consists of an electrically-heated cylinder c secured to a sloping base a, the carbon paper h being passed under a spring- pressed roller f and being drawn by hand over the cylinder. The cylinder may consist of metal and contain a spiral heating-element arranged between asbestos sleeves, or the heating-element may be embedded in a glass or porcelain cylinder. The heating-element is provided with temperature regulating means.
Patent GB-178641-A (GB)
Title: Improvements in securing wires, cables, and the like for ignition magnetos and the like
IPC: F02P1/00
Filed: 1921-02-18
Abstract: 178,641. Villiers Engineering Co., Ltd., Farrer, F. H., and Pountney, F. Two-part couplings ; needle point couplings. - An electric conductor is secured to an ignition-magneto or the like by a terminal member A comprising a wood screw G passing freely into a plain hole therein and screwed into the conductor D. The extreme end of the core of the conductor may be sweated solid and is received in one A<2> of two passages bored at right angles to each other, the second passage A<3> containing a coil spring E which is secured in position and in connection with the cable by the screw G passing through its reduced inner coils. The outer end of the spring is held in contact with the high tension lead in the magneto by a bow shaped spring J anchored at its extremities to affixed part of the magneto and engaging one of a number of transverse notches in the outer bed of the terminal member so as to hold it displaceably in a socket B<2> with the conductor projecting in the desired direction. A washer A<4> of felt &c. excludes dirt and moistures.
Patent GB-322959-A (GB)
Title: A process for the extraction of gases from and for the gasification of fuels
IPC: C10B49/14
Filed: 1929-02-20
Abstract: 322,959. Lichtenberger, T., Kaiser, L., and Meyer, F. Feb. 20, 1929. Coking processes; Producers.-Solid or liquid fuel is distilled and gasified by being heated while immersed in a bath of a molten salt in the presence of steam. Coal, lignite, peat, oil shale, petroleum, or petroleum residues may be treated in this way and water gas and distillation gas obtained. Two adjacent chambers 1, 2 commu- :cating by a passage 4 are used, the salt being heated in chamber 1 so as to avoid contamination of the gases obtained by combustion products. The fuel is supplied to chamber 2 and is gasified therein by steam, preferably superheated. In Fig. 2 the solid fuel is charged into a shaft 5 having an outlet 7 for the distillation gas, and steam is supplied to the residue in the chamber 2, the water gas escaping through an outlet 8. Coke may be recovered as a by-product.
Patent GB-814167-A (GB)
Title: Improvements in or relating to absorption refrigeration
IPC: F25B15/00
Filed: 1958-02-20
Abstract: 814,167. Refrigerating. CARRIER ENGINEERING CO. Ltd. Feb. 20, 1958 [March 21, 1957], No. 5617/58. Class 29 An absorption refrigeration machine includes an absorber 2, spray members 7 in the absorber and a drip member 6 placed beneath the spray members to collect solution discharged by the spray members and lead it to a container 5 for the solution including means connected to a purge-line within the absorber for withdrawing non-condensible gases from the absorber, the drip member being adjustable to vary the amount of solution collected. As shown, the drip member 6 pivots horizontally in a sleeve 8 and is fixed to a rotatable shaft 11 adjustable and locked from outside the absorber 2. Specification 800,249 is referred to.
Patent GB-632208-A (GB)
Title: Improvements in or relating to the production of cellular materials from rubber, plastics and bituminous compositions
IPC: C08J9/06
Filed: 1947-02-26
Abstract: A cellular structure is obtained in synthetic resinous materials capable of being softened by heat, excluding polythene, by incorporating into the material after mastication a blowing agent consisting of hydrogen peroxide or an organic peroxide, heating the mixture to a temperature sufficient to cause the blowing agent to form gas or vapour in a space permitting of limited expansion of the resinous mass, and while in the expanded state converting the mass into a rigid or elastic form.  The organic peroxides may be urea peroxide, acetyl peroxide, or benzoyl peroxide.  In examples (II) and (VIII) polyvinyl chloride plasticised with tricresyl phosphate is treated with benzoyl peroxide and acetyl peroxide and the mixture heated in moulds; (V) monomeric methyl methacrylate is partially polymerized in the presence of benzoyl peroxide and then potassium permanganate added to liberate oxygen and the polymerization completed; (IV) similarly styrene monomer is treated with a mixture of benzoyl peroxide and hydrogen peroxide; (VI) polyvinyl alcohol is treated with hydrogen peroxide and subsequently with sulphuric acid and formaldehyde.  Specification 626,151 is referred to.ALSO:A cellular structure is obtained in natural or synthetic resinous materials capable of being softened by heat, excluding polythene, but including rubber and bituminous compositions, by incorporating into the resinous material after mastication a blowing agent consisting of hydrogen peroxide or an organic peroxide, heating the mixture to a temperature sufficient to cause the blowing agent to form gas or vapour in a space permitting of limited expansion of the resinous mass, and while in the expanded state converting the mass into a rigid or elastic form.  The organic peroxides may be urea peroxide, acetyl peroxide, or benzoyl peroxide.  In examples, rubber is plasticised on a mill, optionally with the addition of zinc oxide and stearic acid and then either damp benzoyl peroxide or whiting and hydrogen peroxide added and the mass heated first to evolve the gas and finally to vulcanise to soft or hard rubber.  In a further example coal tar pitch is rendered porous with the aid of 5 per cent benzoyl peroxide solution.  Specification 626,151 is referred to.
Patent GB-853766-A (GB)
Title: Improved moulding compositions
Inventor: JONES CYRIL ALEXANDER
IPC: B22C1/22
Filed: 1957-02-20
Abstract: Free-flowing shell moulding sand consists of discrete sand particles coated with a thermosetting resin and a mineral lubricating oil. Resins may be phenolic resins, which may be, either resols obtained by condensing phenol and a molar excess of aldehyde, or novolaks obtained with a molar deficiency of aldehyde under acidic conditions and settable by addition of aldehyde, e.g. as hexamine, 2-5% resin is used.  Oils may have S.A.E. 10-100 and may be used in amount 0.01-0.1%.  A solution of a resol may be added to sand and the solvent evaporated, or, alternatively, hot sand may be mixed with a novolak, and hexamine added in solution, or dry sand may be mixed with a solution of novolak and hexamine. The oil may be added at any stage, preferably to hexamine, which is added to a mixture of sand and novolak.  Specification 763,812 is referred to.
Patent GB-1489046-A (GB)
Title: Preparation and use of polyamide derivatives
IPC: C08F8/34
Filed: 1976-02-13
Abstract: 1489046 Dewatering sludges CALGON CORP 13 Feb 1976 5825/76 Heading ClC [Also in Divisions C3 D2 and El] In an otherwise conventional process for dewatering an aqueous waste sludge by chemical conditioning followed by mechanical dewatering, there is used as the conditioning agent an anionic or cationic derivative of an amide polymer which has been produced by modifying the polymer by reaction in an inverse emulsion (see Division C3). The polymer may be aminomethylated and optionally quaternized, or may be sulphomethylated. Example 14 illustrates sludge dewatering, the polymer used being the product obtained by aminomethylating polyacrylamide with a formaldehyde/dimethylamine adduct.
Patent GB-1527434-A (GB)
Title: Crop harvesting machines
IPC: A01D41/14
Filed: 1976-02-13
Abstract: 1527434 Headers SPERRY RAND CORP 13 Feb 1976 [18 Feb 1975] 05850/76 Heading A1F A header for a harvesting machine is suspended from the main frame of the machine by means including at least one elongate lift arm 38 extending forwardly from the main frame and having a saddle bracket 76 at its forward end which receives a cylindrical bearing 78 on the header. Once the bearing 78 is seated in the bracket 76 a retaining pin 92 is inserted through holes 90, in plates 82 mounted on the header to locate under a forward lip of the bracket 78. The header is supported for flotation over the ground surface by a pair of springs 46 provided between each lift arm 38 and plates (48) mounted on the main frame, Fig. 1 (not shown).
Patent GB-854556-A (GB)
Title: A method for the manufacture of gasket rings for pipe joints
IPC: B21D41/04
Filed: 1959-02-20
Abstract: 854,556. Making pipe-joint gaskets. INVENTEX Ltd. Feb. 20, 1959 [Feb. 25, 1958], No. 5928/59. Classes 83 (2) and 83 (4). [Also in Group XXVI] In a method of making a gasket ring for a pipe joint, which ring is to act in conjunction with the tapered cone of a connecting-member and a pressure or clamping member and which by axial displacement of a cutting-edge at the front end is to cut into the outer surface of the pipe to be connected, pressure is applied on the previously-shaped front end of the ring by a skewed roller 5 or skewed rollers, a relative rotational motion and, if necessary, also a relative motion in an axial direction being provided so that plastic deformation of the material occurs. The rear part 1 of a gasket-ring engages in the joint with a cap-nut, a part 2 is outwardly tapered and the front portion 3 of the ring is initially formed parallel cylindrical as in Fig. 1 (not shown), the forward end having a profile 4 and a cutting-edge 8. The part 3 is then skew-rolled to the form of Fig. 2 so that the outer surface may engage with a connecting- member (not shown) with a conical bore, the cutting-edge 8 being at the same time set to the required angle for biting into the pipe on assembly of the joint. The surface of the skew roller or rollers may be convex or concave. Specification 688,744 and 840,164 are referred to.
Patent GB-634769-A (GB)
Title: Improvements in and relating to metal encased electrical components, particularly capacitors
IPC: H01G4/38
Filed: 1948-02-27
Abstract: 634,769. Mounting terminals. STEPHAN, F. C., and WEGO CONDENSER CO., Ltd. Feb. 27, 1948, No. 6031. [Class 38 (i)] In a metal-encased component, e.g. a capacitor, 10, the casing 2 is formed of a main part and an additional part having a retracted wall which together with the wall of the main part provides recesses which receive the terminals 4 so that they do not project beyond the contour of the casing. A portion 12 of the casing wall is retracted a distance d behind the remainder of the wall greater than the length of the external projecting part of the' terminal bush 5.
Patent GB-994494-A (GB)
Title: Interpolymerisation between petroleum resins and formo-phenolic resins or aminoplasts
IPC: C08L57/02
Filed: 1963-02-14
Abstract: A product thought to be an interpolymer is obtained by forming or completing the formation of a phenoplast or an aminoplast in the presence of a petroleum resin (including halogenated, oxidized or hydrogenated resins).  The formaldehyde resin may be obtained from formaldehyde and a phenol and/or amine or amide, e.g. alkyl phenols, halogenated alkyl phenols, resorcinol, hexamethylene tetramine or diamine, tetraethylene pentamine, phenylene diamine, urea, thiourea or cyanuramide.  Conventional reaction ingredients which may be present are: catalysts such as organic peroxides, sodium hydroxide or ammonium hydroxide; dispersing agents such as K or Na oleate, mono- or triethanolamine sulphonate, or metal alkyl sulphonates; hardening agents such as acetic acid, metal monochloracetates, and ammonium chloride; and water.  The products find application as aqueous solutions or emulsions for impregnating cellulose, wood, laminates, sawdust, lint, flax fibre, wood fibre, paper and fabrics.
Patent GB-1208254-A (GB)
Title: Spherical rotary plug valve and method of its manufacture
IPC: F16K5/06
Filed: 1969-02-05
Abstract: 1,208,254. Making valves. L'AUXILIAIRE DE L'INDUSTRIE ET DES MINES S.A. 5 Feb., 1969 [8 Feb., 1968], No. 6110/69. Heading B3A. [Also in Division F2] A spherical rotary plug valve of the type having a rotary member 5 and its actuating shaft 8 constituted by two independent elements and wherein the body 2 of the valve has a single smooth opening 10 for the passage of the actuating shaft 8, comprises means 13 connecting the shaft 8 to the rotary member 5 in a permanent manner only after the assembly of the two elements in the body of the valve. The permanent connection is preferably obtained by two successive operations: screwing the shaft 8 into the member 5 and then crimping the base of the shaft 8. Connection may also be made by riveting, adhesion, deformation, welding and pinning.