baber/WOPTO huggingface dataset:
Patent GB-583290-A (GB)
Title: Resinous compositions comprising copolymers of vinyl chloride and a fumaric ester
IPC: H01B3/30
Filed: 1944-10-16
Abstract: A composition comprises a vinyl chloride/fumaric ester copolymer, a plasticiser therefor, and from 1 to 25 per cent by weight based on the copolymer, of an oxide, hydroxide or carbonate of a metal of Group I-A or Group II-A of the Periodic Table.  Calcium and barium hydroxides are preferred, but others specified are calcium carbonate, litharge, lead carbonate, lithium carbonate, sodium carbonate, potassium carbonate, magnesium hydroxide, magnesium carbonate, magnesium oxide and barium oxide. Acetylated castor oil, di-(butoxyethyl)-sebacate, tricresyl, trioctyl or triphenyl phosphate, esters of phthalic acid such as dioctyl phthalate or dicapryl phthalate and alkoxyalkyl esters of organic carboxylic acids are mentioned as plasticisers.  Pigments such as carbon black and titanium oxide may be present, as may also stabilisers such as the derivatives of propylene oxide, e.g. phenoxypropylene oxide.  The copolymer preferably contains at least 95 per cent by weight of vinyl chloride.  Alkyl fumarates, e.g. dimethyl, diethyl, dipropyl and dibutyl fumarates are preferred.  The composition may be used as electric insulation, protective jackets for cables, in the manufacture of coated fabrics, unsupported films, moulded articles, protective coatings, gaskets, abrasive compositions, adhesives, caps, closures, collapsable containers, storage battery plate separators and tapes.  In examples, the following compositions are given: (1) vinyl chloride/diethyl fumarate, acetylated castor oil, di-(butoxy ethyl) sebacate, calcium hydroxide, bone black and phenoxypropyleneoxide; (2) as for (1) using calcium carbonate instead of calcium hydroxide; (3) vinyl chloride/dimethyl fumarate, acetylated castor oil, di - (butoxyethyl) sebacate, barium hydroxide, bone black, and phenoxypropylene oxide; (4) as for (3) using barium carbonate instead of barium hydroxide; (5) as for (3) using calcium hydroxide instead of barium hydroxide and (6) as for (3) using sodium carbonate instead of barium hydroxide.
Patent GB-1181663-A (GB)
Title: Production of Ingots by Electroslag Remelting Processes
Inventor: ALEXANDER WILLIAM OLIVER
IPC: B23K35/36
Filed: 1966-05-05
Abstract: 1,181,663. Electroslag refining. FOSECO INTERNATIONAL Ltd. 26 April, 1967 [5 May, 1966], No. 19968/66. Heading B3F. [Also in Divisions C3, C5 and C7] In a method of electroslag refining ingots of steel or other metal a tablet 5 is placed in the region of the tip of the electrode 1 before the start of refining, said tablet comprising ingredients which react exothermically when fired and which burn to yield a slag which is suitable for refining the metal of the electrode. The tablet may be in the form of a block or disc having a central hole for admitting a primer plug for initiating the firing of the starter tablet 5 and may include within the body of the tablet a wire mesh (Figs. 1-4, not shown) that may pass the initial starting current and form an alloying constituent, e.g. nickel, of an ingot. Slag and flux is added to the slag formed by the melting of the tablet 5 and may be present, for example, when forming an ingot in a mould 1 having a water-cooled copper base 3 and metal starting plate 4, in the form of a sleeve 7 that melts during the refining process. The exothermically reacting ingredients of the tablet 5 comprise a substance selected from aluminium, magnesium and calcium silicide and an oxidizing agent selected from iron oxides, alkali metal nitrates, chlorates and per-chlorates and ammonium perchlorate. Numerous examples are given of compositions for the tablet to meet specific requirements of slag and flux formation including binders, organic or inorganic, used in mixing, moulding, and curing the tablets. Specific examples are given for the materials used in making the sleeve 7, which may be of four types; cured, sintered or calcined, cast, or exothermic. Examples of materials used in the composition of the tablet are fluorspar, powdered aluminium, potassium nitrate, iron millscale, sodium fluoride. Magnesium powder may be used with varying proportions of aluminium to yield fluorspar/magnesia/alumina fluxes. In electroslag welding a suitable slag comprises manganese oxide, silica, alumina, fluorspar, sodium fluoride and either titanium dioxide, potassium oxide or sodium oxide. An exothermic composition for electroslag welding comprises manganese dioxide, calcium silicide, powdered aluminium, potassium nitrate and sodium fluoride.
Patent GB-1200028-A (GB)
Title: Packaging apparatus
IPC: B65B51/30
Filed: 1968-04-26
Abstract: 1,200,028. Severing by tearing. AUTOMATED PACKAGING CORP. 26 April, 1968 [27 April, 1967 (2)], No. 19982/68. Heading B4B. [Also in Division B8] A packaging machine producing a chain of filled bags having perforations between them (see Division B8) has means to sever bags successively from the chain by imparting a sudden movement to the lowermost bag and causing tearing along the perforation line. The bag chain is fed over a plate 107 at the lower end of which are pivoted fingers 103, 104. The plate is slidable along arms 100 by an air cylinder 108 and downward movement of the plate causes the fingers to pivot outwards at considerable speed to sever the lowermost bag from the chain.
Patent GB-1213923-A (GB)
Title: Aseptically sealing shut-off valve
IPC: B67C3/28
Filed: 1969-04-18
Abstract: 1,213,923. Valves. ALFA-LAVAL A.B. 18 April, 1969 [18 April, 1968], No. 20018/69. Heading F2V. A valve for feeding foodstuff has a split seat 4a, 4b which, when closure member 3 is seated, opens to provide a space 6 into which steam is admitted from a continuous supply flowing from inlet 7 to outlet 8 to sterilize the closure member. Seat part 4b is spring loaded so that it closes space 6 when closure member 3 is raised. In a modification (Fig. 3, not shown) a second spring loaded seat part (4c) provides another annular space (14) when the valve is closed. In a further modification (Fig. 2) a resilient seat 4a has a pair of lips A, B which are parted by the closure member as it seats.
Patent GB-231077-A (GB)
Title: An improvement in steam engine or like packings
IPC: F16J15/22
Filed: 1924-08-25
Abstract: 231,077. Cockin, J. Aug. 25, 1924. Drawings to Specification. Packing, compound metallic and non-metallic. -In packing of the type made by plaiting rubber-covered strands of fibre and pressing to shape, some or all of the strands are wound spirally with wire of antifriction metal, brass or lead &c. either before or after being coated with rubber. The completed packing may have an asbestos or like covering.
Patent GB-614085-A (GB)
Title: Improvements relating to fastening devices
IPC: E05C19/02
Filed: 1946-07-04
Abstract: 614,085. Catches. TREGASKISS, A. V. July 4, 1946, No. 20075. [Class 44] In a door catch, a rod 24 on the door co-operates with a catch on the door frame comprising a pair of slidable D- shaped jaws 15, urged together by springs 16 and which are forced apart by the rod 24 in closing or opening the door. The catch frame 12 has a flared slot 13 and two guides 14 on each side, the rounded portions of the jaws 15 projecting into the slot. The frame is enclosed in a casing having flanges 22. In a modification, the jaws,comprise rollers mounted on slidable blocks. The rod 24 may have a roller at the end to engage the catch jaws.
Patent GB-1508317-A (GB)
Title: Process for the production of elastomeric polyurethane ureas
IPC: C08G18/00
Filed: 1975-05-13
Abstract: 1508317 Elastomeric polyurethane ureas BAYER AG 13 May 1975 [16 May 1974] 20082/75 Heading C3R Elastomeric polyurethane ureas are prepared by reacting a diisocyanate a polyhydroxyl compound of M.W. from 500 to 10,000 and an aliphatic, cycloaliphatic and/or araliphatic primary and/or secondary diamine or hydrazine or acid hydrazide in a self-cleaning two-shaft screw extruder with both the shafts rotating in the same sense at a temperature of 110‹ to 280‹ C. and at a viscosity range during the reaction in the extruder of 0À1 to 3000 poises, such that, when the reaction mixture is very sticky and has a viscosity of 100 to 1000 poises, is is passed through a zone of the screw which is situated near to the inlet zone for the reaction mixture and which contains vigorously mixing kneading elements with kneading frequencies of 1 to 20 Hertz and in which there is a velocity gradient in the radial clearance between the screw comb and housing wall of more than 2000 sec.<-1>. It is preferred to form a prepolymer from the diisocyanate and polyhydroxy compound and to feed this prepolymer and the diamine separately to the extruder. The kneading elements preferably comprise a series of prismatic discs of various geometrical shapes. After the critical kneading step, the reaction mixture may be subjected to further kneading steps before forming thereof. In a typical example, a linear polyester is reacted with 1- isocyanato - 3 - isocyanatomethyl - 3,5,5 - trimethyl cyclohexane to form a prepolymer which is reacted in an extruder with 1-amino-3- aminomethyl-3,5,5-trimethyl cyclohexane.
Patent GB-356360-A (GB)
Title: Improvements in or relating to wireless aerial systems
IPC: H01Q1/52
Filed: 1930-07-02
Abstract: 356,360. Aerials. KIRKE, H. L., 11, Newburgh Road, Acton, London. July 2, 1930, No. 20093. [Class 40 (v).] Two separate aerials are supported on a common mast system in such a way that (1) there is no undesirable " mast effect " on the radiation field, and (2) both aerials can operate on a different wavelength without producing interference patterns. As shown in Fig. 1 one aerial 1 is slung between the masts 2 and is energized centrally at 4. The second aerial system consists of two conductors 5 splayed outwardly on opposite sides of the masts 2 and fed in phase from a transmission line 6, 7. Each of the aerials 5 radiates a cardioid field, giving a resultant uniform distribution of energy. Alternatively two aerials 5 are arranged at each end of the centre aerial 1, as shown in Fig. 5, and energized from a transmission line 10, 6 ; or only two of these may be used, one on each side of the inner aerial, the distance between them being equal to one-half the working wave-length, and the supply currents being 180' out of phase.
Patent GB-716034-A (GB)
Title: Method for the manufacture of high-temperature resistant articles
IPC: C22C32/00
Filed: 1951-08-28
Abstract: A method for the production of substantially pore-free, high-temperature resistant articles by the infiltration of porous refractory metal carbide, bodies comprises intimately mixing titanium carbide powder containing 1 to 3 per cent. of free carbon, with 2 to 12 per cent. by weight of powdered binder metal p  comprising cobalt, nickel, iron or their alloys so that the latter is smeared over the titanium carbide particles, compressing and sintering the mixture to form a porous body and then infiltrating the body with the binder metal.  Preferably the carbide powder is first given a heat treatment at 2000 DEG -2300 DEG C. in a hydrogen atmosphere.  As an example, titanium carbide powder of 325 mesh containing 75.96 per cent. titanium, 18.0 per cent. combined carbon and 2.53 per cent. free carbon is placed in a graphite crucible and heat treated in a hydrogen atmosphere for 30 minutes at 2300 DEG C.  The agglomerated mass is crushed, passed through a 140 mesh sieve and mixed with 10 per cent. by weight of cobalt powder of 325 mesh and ball-milled for 24 hours.  The mixture is then sintered in hydrogen for one hour at 1500 DEG C. and finally impregnated by the alloy known under the Registered Trade Mark "Stellite" for 20 minutes at 1530 DEG C.  In another example the heat treated titanium carbide powder is mixed with 10 per cent. carbonyl nickel powder and the sintered body impregnated with the alloy known under the Registered Trade Mark "Nichrome."
Patent GB-970464-A (GB)
Title: Chair control
IPC: A47C1/024
Filed: 1963-05-21
Abstract: 970,464. Resiliently mounted and adjustable seats. STEWART-WARNER CORPORATION. May 21, 1963 [May 22,1962], No. 20249/63. Headings A4J and A4U. A chair control for supporting a chair back tiltably relative to its seat, comprises relatively pivotally mounted separate back and seat supports 12, 10, respectively, and a torsion bar 18 fixed at or near its ends in non-rotatable relationship with one of the supports and fixed intermediate its ends in a non- rotatable relationship with the other of the supports, thereby providing resilient restraint against tilting between the two supports. The seat support 10, which is carried by a post 13, includes a channel shaped cross member 26, spider arms 42 and plates 44. The back support 10 comprising a body 52 and hinge 68 extends through an opening in the cross member 26 so that the torsion bar 18, which is of square cross section, can be secured in square openings in the plates 44, pivotally supported in bushings 56, on body 52, and engaged in a square opening in a torque lever 22. The initial torque on the bar 18 is adjusted by a wheel 64 having a threaded stud engaging in body 52 and bearing against the end of the lever 22, subsequent rearward force on the chair back tilting the body member 52 to increase the torque and, consequently, the restoring force. The back, which is connected to arm 17, is vertically adjustable by sliding a clamping bolt in a slot 81 in hinge member 68 and is angularly adjustable, by pivoting the member 68 about a rivet 70 under control of a locking bolt 73 movable in slots 78 in body 52.
Patent GB-1189711-A (GB)
Title: A Process for Treating Polyolefine Material.
IPC: B29C61/06
Filed: 1967-05-02
Abstract: 1,189,711. Wrapping. CONSERVATOMEINDUSTRIE. 2 May, 1967 [2 May, 1966], No. 20304/67. Heading B8C. [Also in Division B5] A retractile polyolefin wrapping material is made by initially stretching the material fully to the extent required for use for wrapping so as to impart orientation thereto and then subjecting the material to an ionising radiation such that the material receives an irradiation dosage of 1 to 5 megarads, preferably 1À5 to 3À5 megarads. The preferred polyolefin material is polyethylene. Articles may be wrapped in sheets of the polyolefin material so produced and the material heated to a temperature of 120‹ to 145‹ C. to release the pre-stresses therein and so cause the material to contract on to the article. In a preferred wrapping method, the article is wrapped in a sheet of wrapping material of the required size, and the edges of the sheet heat-sealed by bringing them together and welding them by the application of a heated member or wire. This can be adapted to produce the weld and to cut the edges of the sheet simultaneously. Sealing may also be carried out by any other known method used for the hot-welding of plastics, such as high-frequency hot welding. When the seal has been made, the wrapped article is placed into a device in which the wrapping material is heated to a temperature of 120‹ to 145‹ C., which relieves the internal stresses and causes the wrapping material to contract and tighten on to the article.
Patent GB-728279-A (GB)
Title: Method for the manufacture of a silica-metal oxide composite
IPC: B01J21/12
Filed: 1953-07-23
Abstract: A silica-metal oxide composite is prepared by commingling a silica sol with a gellable hydrous metal oxide sol and with an acidic solution of metal salt, contacting the resultant mixture with a basic medium to form a firm hydrogel, and drying the gel. The metal present in the oxide sol and the salt solution may be aluminium, magnesium, zirconium, beryllium, vanadium, thorium, or tantalum.  The mixture preferably has an SiO2 content of 4-10 per cent. and a pH of 2-5; the amount of metal salt may be equivalent to 0.5-15 per cent. by weight of the final dried composite.  For the preparation of silica-alumina composites, water glass is added to a mixture of sulphuric, hydrochloric, nitric, or acetic acid and a solution of aluminium sulphate, nitrate, or acetate; alumina sol is added to the resultant mixture.  Spheroidal particles are formed by dispersing the mixture into an atmosphere containing ammonia, methylamine, or ethylamine; the particles are collected in aqueous liquid having a temperature of 30 DEG -105 DEG  C. and a pH of 7-10, washed with ammonium sulphate solution, dried at 40 DEG -315 DEG  C., and calcined at 425 DEG -760 DEG  C.  Alternatively the mixture may be dispersed into a hot immiscible liquid.  The bulk density and the average pore diameter of the final composite may be varied by altering the proportion of metal oxide sol to metal salt solution; thus silica-alumina composites having an alumina content of 2.5-75 per cent. may be made with bulk densities of 0.4-0.8 gms./cc., and similar composites having an alumina content of 5-35 per cent may have an average pore diameter of 40-90  .  The products are useful as catalysts in cracking, hydroforming, or desulphurization of hydrocarbons, alkylation of aromatic or isoparaffinic hydrocarbons, polymerization of unsaturated hydrocarbons, the reaction of xylene with benzene to produce toluene, and the dehydration of alcohols to form hydrocarbons.  Examples describe the preparation of silica-alumina catalysts according to the invention, and also by impregnation and cagellation methods, with comparative figures for activity, &c.
Patent GB-753716-A (GB)
Title: Acylated sulphisoxazole compounds and process for the manufacture thereof
Filed: 1954-07-13
Abstract: The invention comprises acyl 4-amino-N1-(31:41 - dimethylisoxazolyl - (51)) - benzenesulphonamides of the general formula <FORM:0753716/IV(a)/1> wherein the acyl group is an aliphatic carboxylic actyl group of up to 18 carbon atoms or an aromatic or aliphatic acyl group of not more than 8 carbon atoms, and the process for their preparation by acylating 4-amino-N1-(31:41-dimethyl isoxazolyl - (51)) benzenesulphonamide (sulphisoxazole), in the presence of a basic agent.  The preparation is suitably carried out by acylating the sulphisoxazole with an acid anhydride or by reaction of the silver salt of sulphisoxazole with an acid halide. The acyl group may suitably be a saturated aliphatic acyl group, such as an acetyl, propionyl, butyryl or lauroyl group, an unsaturated aliphatic acyl group such as oleoyl, an aromatic acyl group such as benzoyl, or an araliphatic carboxylic acid acyl group such as phenacetyl.  The reaction is preferably carried out in an inert organic solvent such as acetone, methyl ethyl ketone, dioxane, benzene, toluene or chloroform.  Specified basic agents which may be present are pyridine, picoline, lutidine, quinoline, trialkylamines, and alkali metal and alkaline earth metal acetates.  In examples (1)-(6) sulphisoxazole is acylated with the appropriate acid anhydride in acetone and in the presence of pyridine to give acetyl, butyryl, propionyl, lauroyl, oleoyl and phenacetyl-4-amino - N1 - (31:41 - dimethyl - isoxazolyl - (51))-benzenesulphonamides; and (7) the silver salt of sulphisoxazole is reacted with benzoyl chloride in acetone in the presence of pyridine to give benzoyl 4-amino-N1-(31:41-dimethylisoxazolyl-(51)) -benzenesulphonamide.
Patent GB-865615-A (GB)
Title: Improvements in or relating to drinking tubes
IPC: A47G21/18
Filed: 1958-06-26
Abstract: A drinking tube is formed of a moulded farinaceous material incorporating sweetening and flavouring media, as by extrusion of a flour paste similar to that used in the production of macaroni but containing an admixture of sugar and orange juice.  The formed tube may be treated with an edible water-repellant substance, such as a substantially tasteless vegetable oil.
Patent GB-1298191-A (GB)
Title: Microwave noise source tube
IPC: H01J25/46
Filed: 1966-05-09
Abstract: 1298191 Backward-wave tubes S-F-D LABORATORIES Inc 9 May 1966 [7 May 1965] 20505/66 Heading H1D In a microwave noise source tube a backward wave is formed in the annular space between a cylindrical cathode emitter and the surrounding anode. Crossed D.C. electric and magnetic fields occupy the annular space in which the space charge secondary electrons from the cathode interact with the travelling microwave. The anode potential is such as to cause back bombardment of the cathode emitter. The voltage applied between the cathode and anode is varied so to prevent lack of coherency due to possible bunching of the secondary electrons in the annular space and to vary the noise energy frequency. A copper block is inserted between the upstream and downstream ends of the anode to present feedback. Small thermionic emitter zones may be provided to initiate electron emission, otherwise field emission or a gas filling can be employed. The anode may be of the forms shown in Figs. 3, 4, 7, 9 and 11. Interleaved teeth, of length one quarter of the resonance wavelength may be used, or, alternatively, (Fig. 5, not shown), a helix forming a rectangular toroid is employed.
Patent GB-1099064-A (GB)
Title: Sealing of tubes of plastics material
Inventor: DAY WILLIAM JOHN
IPC: G02B27/06
Filed: 1966-05-10
Abstract: 1,099,064. Ink and like capsules. E. S. PERRY Ltd. May 10, 1966, No. 20682/66. Heading B8C. [Also in Division B5] A method of sealing the ends of heat-sealable plastics, e.g. polyvinyl chloride or polythene, tubes (2) comprises sliding a tube through a die (4) until its end is in contact with or adjacent to a heater (6) and withdrawing the tube into the die and sealing the end by means of a punch (8). The tube is mounted on a mandrel (3). The die (4) is preferably tapered at its end adjacent the heater. The tube may be charged with ink and the other end sealed. Several tubes may be mounted side-by-side in a holder and moved successively from a loading station to heating and sealing stations. Alarms may give warning of overheating of the tube ends.
Patent GB-359426-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B7/10
Filed: 1930-07-08
Abstract: Thioindigo dyestuffs are prepared by condensing a 4-alkyl-6-halogen (or -6-alkyl)-hydroxythionaphthene with a reactive 2-derivative of a 4-alkyl-5 : 7 - dihalogen - 2 : 3 - diketodihydrothionaphthene, or by condensing a reactive 2-derivative of a 4-alkyl - 6 - halogen (or -6-alkyl)-2 : 3-diketodihydrothionaphthene with a 4-alkyl-5 : 7-dihalogen-3-hydroxythionaphthene.  In examples: (1) 4-methyl - 5 : 7 - dichlor-2 : 3 - diketodihydrothionaphthene-2-(p-dimethylamino) anil is condensed with 4-methyl-6-chlor-3-hydroxythionaphthene and with 4 : 6 - dimethyl - 3 - hydroxythionaphthene ; (2) 4-methyl - 5 : 7 - dibrom - 3 - hydroxythionaphthene is condensed with 4-methyl-6-chlor (or -6-brom)-2 : 3-diketodihydrothionaphthene - 2 - (pdimethylamino) anil and with 4 : 6-dimethyl-2 : 3-diketodihydrothionaphthene-2-(p-dimethylamino) anil ; (3) 4-methyl - 6 - brom-2 : 3-diketodihydrothionaphthene-2-(p-dimethylamino) anil is condensed with 4-methyl-5-chlor-7-brom-3-hydroxythionaphthene. 4-Methyl-5 : 7-dibrom- and 4-methyl-5-chlor-7-brom-3-hydroxythionaphthenes are prepared from 5-methyl-2 : 4-dibromphenyl-1-thioglycollic acid and 5-methyl-2-brom-4-chlorphenyl-1-thioglycollic acid respectively by treatment with chlorsulphonic in known manner.  5 - Methyl - 2 : 4 - dibromphenyl - and 5-methyl-2-brom-4-chlorphenyl-1-thioglycollic acids are prepared by treating the corresponding 1-thiophenols with chloracetic acid. The thiophenols are prepared from 5-methyl-2 : 4-dibromaniline and 5-methyl-2-brom-4-chloraniline, respectively, in known manner by diazotizing and treating with sodium xanthate. 5-Methyl-2-brom-4-chloraniline is prepared by chlorinating the acetyl compound of 5-methyl-2-bromaniline and saponifying. Specification 8162/07, [Class 2, Acids and salts, Organic &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the production of thioindigo dyestuffs by condensing a reactive 2-derivative of a 4-alkyl-5 : 7-dihalogen-2 : 3-diketodihydrothionaphthenequinone with any hydroxythionaphthene other than 4-alkyl 5 : 7-dihalogen-3-hydroxythionaphthene.  This subject-matter does not appear in the Specification as accepted.