baber/WOPTO huggingface dataset:
Patent GB-762156-A (GB)
Title: Production of terpolymers
IPC: C08F220/42
Filed: 1954-12-07
Abstract: Clear terpolymers of (a) styrene, vinyl toluene or vinyl xylen, (b) acrylonitrile, and (c) a mono-or di-alkyl fumarate, methacrylic acid, methacrylonitrile, an alkyl methacrylate, methyl vinyl ketone or a monoalkyl maleate are prepared by free-radical-initiated batch polymerization to at least 20 per cent conversion of a monomer mixture selected from the area that gives clear terpolymers lying on or about (i.e. within 5 per cent of) the line joining the polymerization azeotrope composition of (a) and acrylonitrile to the polymerization azeotrope composition of (a) and (c) as plotted upon an equilateral triangular co-ordinate graph.  The polymerization azeotrope compositions are those which give interpolymers containing the same relative proportions as the initial monomer mixtures.  The alkyl groups in (c) may be methylethyl, n-propyl, iso-propyl, n-, sec.-, or tert., butyl.  In examples, acrylonitrile is interpolymerized by heating in three stages with (a) styrene and diethyl fumarate, methyl, n-butyl and isopropyl methacrylates, methyl vinyl ketone, methacrylonitrile, or monoethyl maleate and (b) vinyl xylene and methyl methacrylate.  Graphs are given.  The polymerization may be carried out in mass, in suspension in water using suspending agents such as tricalcium phosphate and carboxymethylcellulose (which may yield pearls), or in emulsion, e.g. using a redox catalyst and an emulsifying agent such as a salt of a sulphonated long-chain alkyl aromatic compound or a condensation product of ethylene oxide and a long-chain aliphatic alcohol or mercaptan. The term batch polymerization includes the addition of the monomers in fixed proportions to a continuous system, e.g. a series of vessels.  Catalysts mentioned are hydrogen, benzoyl, di-t.-butyl, and diacetyl peroxides; t.-butyl and cumene hydroperoxides; diethyl peroxycarbonate, potassium persulphate and perborate; a ,a 1 - azodiisobutyronitrile, p-bromobenzenediazonium fluorborate, N - nitroso - p - bromoacetanilide, azomethane, phenyldiazonium halides, diazoaminobenzene, p - bromobenzenediazonium hydroxide and p-tolyldiazoaminobenzene.  Heat alone or ultra-violet light, if desired in the presence of a photo-sensitizer such as an organic disulphide may also be used.  U.S.A. Specification 2,460,105 is referred to.
Patent GB-1021137-A (GB)
Title: Method of and apparatus for the manufacture of thin-walled articles of rubber or the like
IPC: B29C41/14
Filed: 1964-08-28
Abstract: 1,021,137. Dip-moulding rubber articles. RUBBER PRODUCTS DEVELOPMENT PROPRIETARY Ltd. Aug. 28, 1964 [Oct. 28, 1963], No. 35405/64. Heading B5A. [Also in Division A3] In a method of dip moulding, articles of natural and/or synthetic rubber are formed having wall sections of different thicknesses by applying coagulant to the entire article forming area of a former, allowing the coagulant to partially or fully dry, applying a relatively dilute coagulant to those areas to be of reduced thickness, allowing the coagulant to dry, and applying a latex to the coagulant coated area of the former. In a preferred embodiment, glove formers 10 on an intermittently operated conveyer 22 are halted in turn over a tank 36 containing concentrated coagulant, e.g. calcium nitrate, a tank 38 containing, e.g. water, or a mixture of water and sodium hydroxide which renders a coagulant of calcium nitrate ineffective, a tank 40 containing dilute coagulant, a latex tank 42, a number of leaching tanks 44 and a powder coating tank 46. The tanks are mounted on lifting devices 34 and the depth of liquid in each is controllable so that the formers may be immersed to the required depth at the various stations. Also provided is a vulcanizing oven 48 and the gloves are stripped from the formers at station 50. To ensure a complete covering of coagulant and also to provide a tapered portion between the cuff and the remainder of the glove, Fig. 4 (not shown), the depth of immersion H 3  in the dilute coagulant is such as to slightly exceed the depth of immersion H 2  in tank 38.
Patent GB-1468249-A (GB)
Title: Foam producing apparatus
IPC: B05B7/00
Filed: 1975-08-20
Abstract: 1468249 Foam generator WARWICK PUMP & ENG CO Ltd 20 Aug 1975 [12 Aug 1974] 35505/74 Heading B1C A generator of foam for cleaning comprises a jet nozzle 3 connected to a source of pressurized liquid, a tube 12 along which the jet is directed, an air inlet connected to the tube near the nozzle and a labyrinth device 22, including at least one porous element, at the downstream end of the tube. As described and shown there are three devices 22 each comprising a disc 14 with peripheral apertures 23, a porous element consisting of seven 200 mesh gauze discs 15, and a disc 16 with a central aperture. The jet impinges on the disc 14. The tube 12 may have a jacket 13 with air inlet 20 remote from the nozzle and connected thereto through gaps 21 in a spider 11; the jacket retains foam in the event of backflow. The tube 12 may have a series of internal upsets (see Figs. 3 and 5, not shown) to prevent the jet adhering to the internal wall of the tube; the velocity of the jet may be 400 mile/hr. decreasing to 200 mile/hr. and the length/diameter ratio of the tube is conveniently 64:1. The porous element may alternatively be of sintered bronze.
Patent GB-763620-A (GB)
Title: Improvements in or relating to bar and stock guides for lathes and other machine tools
Inventor: JAEGGLE ERICH
IPC: B23B13/08
Filed: 1953-12-23
Abstract: 763,620. Bar-feeds for lathes &c. SCHMID, R., SCHMID, J., SCHMID, C., SCHMID, E., SCHMID, L., SCHMID, C., and BRUNNEMANN, F. W., [trading as AUTOMATENWERK STEINHAUSER]. Dec. 23, 1953, No. 35746/53. Class 83 (3). A guide-tube 3 for bar-stock has bar-supporting rings 9 or 22 mounted on a flexible tube 6 or 21 of resilient material engaging the inside of the tube through flanges 7, the rings being mounted between the flanges, the recesses 10 provided by the flanges allowing some freedom of movement to the rings. Where the bar-feed is provided by a weighted-rope, a longitudinal slot may be provided in the tubes 3, 6, and rings 9, or two parallel interconnected-passages 23, 24 may be provided in the resilient support-tubes 21 and each may be fitted with slotted rings 22, 22<SP>1</SP>, one passage accommodating the feed-rope 28 and the other passage accommodating the bar-stock. In both the latter versions, the support-tubes are prevented from rotating by a longitudinal bar 27, and in the two-passage version, the whole guide-tube may be rotatable to bring either passage in line with the machinespindle.
Patent GB-304119-A (GB)
Title: Improvements in or relating to coin freed alarms
IPC: G07F9/02
Filed: 1928-12-05
Abstract: 304,119. Uldry, E. Jan. 14, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Savings' boxes.-A stopping and releasing device permitting an alarm to be wound up, only after the insertion of a coin, comprises a pinion 1, Fig. 1, keyed on the drum spindle oi the alarm and engaging a pinion 2 which, through a pin 5 engaging in a hole 6, carries with it a cam 3, a shoulder on the cam co-operating with an arm 4<c> of a bell-crank lever 4 to prevent the winding up of the drum. After the insertion of a coin, a rod 4<a> is displaced to disengage the arm 4<c> as shown. The alarm can now be wound up and, near the end of a revolution of the. pinion 2, a, pin 9 on the face of the cam engages the other arm 4<b> of the bell crank lever 4 so that the arm 4<c> is moved again into its obstructing position.
Patent GB-468363-A (GB)
Title: Manufacture of new organic arsenic compounds
IPC: C07F9/80
Filed: 1935-12-30
Abstract: Organo-arseno compounds of the formula <FORM:0468363/IV/1> in which R represents a methylene-bisulphite, methylene-sulphoxylate or methylene-carboxylic acid group and R<1>, whose presence is optional represents one or more substituents or a condensed isoxazine ring, are obtained by (1) reduction of equimolecular proportions of 8-acetylamino-3-hydroxy-1 : 4-benzisoxazine-6-arsonic acid and a phenyl- or benzisoxazinearsonic acid containing a free amino group, and treatment of the product with sodium formaldehyde bisulphite, sodium formaldehyde sulphoxylate or a halogen-acetic acid, (2) interaction in solution of equimolecular proportions of the arseno compound obtained by reduction of 8-acetylamino-3-hydroxy-1 : 4-benzisoazine-6-arsonic acid and the arseno compound obtained by reduction of a phenylor benzisoazine-arsonic acid containing a free amino group, and subsequent treatment of the product with sodium formaldehyde bisulphite, sodium formaldehyde sulphoxylate or a halogen-acetic acid.  In either case the subsequent treatment may be dispensed with if a phenyl- or benzisoxazine-arsonic acid is used which contains, instead of the free amino group, an amino-methylene-bisulphite, an amino-methylene-sulphoxylate or an aminomethylene-carboxylic acid group.  The products possess therapeutic properties.  According to the examples; (1) 8-acetylamino-3-hydroxy - 1 : 4 - benzisoxazine - 6 - arsonic acid and 8-amino-3-hydroxy-1 : 4-benzisoxazine 6-arsonic acid are together reduced with sodium hyposulphite and the product treated with sodium formaldehyde sulphoxylate; (2) a mixture of 8-acetylamino-3-hydroxy-1 : 4-benzisoxazine - 6 - arsonic acid and 5-amino-2-hydroxyphenyl-arsonic acid is reduced with sodium hyposulphite and the resulting arseno compound then treated with formaldehyde and sodium bisulphite; (3) 8-acetylamino-3-hydroxy - 1 : 4 - benzisoxazine - 6 - arsonic acid is reduced with sodium hyposulphite in presence of p-carboxymethylamino-phenylarsonic acid; (4) formaldehyde and sodium bisulphite are added to the arseno compound prepared by reduction with sodium hyposulphite of a mixture of 8-acetylamino-3-hydroxy-1 : 4-benzisoxazine - 6 - arsonic acid and 3 amino - 5 - acetylamino - 4 - hydroxyphenylarsonic acid. Specifications 3615/12, 7865/12, 174,078, 250,577, 278,444, 280,613, and 295,744, [all in Class 2 (iii)], are referred to.
Patent GB-169652-A (GB)
Title: Improvements relating to forced lubrication of rotating machine elements
IPC: F16C3/14
Filed: 1920-12-23
Abstract: 169,652. Olivier, H. C. Dec. 23, 1920. Regulating.-The ignition or throttle of an internal-combustion engine is controlled by the pressure of the lubricating-oil, which pressure is caused to vary according to the speed of rotation by means of a valve o provided in an oil channel in the crank-pin b or other rotating element. The valve is adapted to be moved towards its seat by ceutrifugal force and to be opened by the pressure of the circulating oil which enters the hollow crank-shaft at f. A spring r may be used to. assist the centrifugal action.
Patent GB-1055411-A (GB)
Title: High input impedance direct-coupled transistor amplifier
IPC: H03F1/34
Filed: 1964-09-03
Abstract: 1,055,411. Transistor amplifier circuits. LEEDS & NORTHRUP CO. Sept. 3, 1964 [Sept. 27, 1963], No. 36150/64. Heading H3T. An amplifier comprises a first transistor having its emitter conductively connected to the base of the last stage which latter has in its emitter circuit a resistance 15 which carries he D.C. current of all the transistors and is included in the input and output circuit of the amplifier, the collector of the last transistor being connected to the supply through a first resistance 16 of the same order as or higher order than the emitter resistance 15 and to the base of the first stage through a second resistance having an impedance 14, 14b of the order of megohms and greater than the first and emitter resistances. A capacitor 18 may bypass signals in the feedback circuit and a capacitor 22 may by-pass high frequency noise. The collector of transistor 11 may operate at a reduced potential (Fig. 2, not shown) and an additional emitter follower may be interposed between the stages (Fig. 3, not shown).
Patent GB-907645-A (GB)
Title: Method and apparatus for rendering saline water potable
Inventor: ASHLEY CARLYLE MARTIN
IPC: C02F1/22
Filed: 1958-11-11
Abstract: 907,645. Purifying water by freezing. CARRIER CORPORATION. Nov. 11, 1958, No. 36248/58. Drawings to Specification. Class 29. The Specification describes the substantially same apparatus as is described in Specification 907,643 but it is so operated that the liquid level in the separator column reaches the top of the column so that the washing water is applied to the surface of the mixture of solution and ice and not to the ice alone. Furthermore the baffle above the column is imperforate so that the washing water is formed by condensation of the vapour on the surface of the ice and solution in the column.
Patent GB-1261532-A (GB)
Title: Double walled drinking cup
Inventor: GATELEY GWENDOLINE FLORA
IPC: A47J41/00
Filed: 1968-01-04
Abstract: 1,261,532. Thermally insulated cups. MONO CONTAINERS Ltd. 30 Dec., 1968 [4 Jan., 1968], No. 36324/71. Divided out of 1,261,531. Heading F4U. [Also in Division A4] In a double walled drinking cup, the bottom of the side wall of the inner contacts the outer, e.g.  at 26, to provide lateral location and the bottoms of the inner and outer are spaced at their peripheries. As shown, the bottoms are planar with indented centres 38, 39. The bottoms may be curved (Figs. 2-4, not shown) and the inner may be in line contact with the outer (Figs. 3 and 4).
Patent GB-970850-A (GB)
Title: Plutonium recovery from neutron-bombarded uranium fuel
IPC: G21C19/48
Filed: 1963-09-16
Abstract: 970,850. Plutonium recovery. UNITED STATES ATOMIC ENERGY COMMISSION. Sept. 16, 1963 [Oct.10, 1962], No. 36342/63. Heading G6R. A process of recovering plutonium from a chlorinatable nuclear fuel material containing plutonium together with uranium, in either the metallic or the oxide forms, comprises immersing the fuel material in a molten about equimolar double salt mixture of aluminium choride and potassium chloride, whereby the plutonium and uranium are dissolved mainly as plutonium tetrachloride and uranium tetrachloride with a minor quantity of uranyl chloride; adding molten lithium chloride and stannous chloride to the reaction mass, whereby the plutonium tetrachloride is reduced to the trichloride, the uranium tetrachloride remains unchanged, the uranyl chloride is reduced to uranium tetrachloride, the plutonium trichloride is dissolved in a lithium chloride phase, and the uranium tetrachloride is dissolved in the double salt; and separating the lithium chloride phase from the double salt. The reaction is preferably carried out at a temperature of between 450 and 625‹C. in an atmosphere of air. The lithium chloride content of the ternary salt mixture it forms with the double salt ranges from between 10 and 40 % mole at 450‹C. to between 15 and 95 %mole at 625‹C. The stannous chloride is preferably added in excess of the amount stoichiometrically necessary to reduce all the plutonium tetrachloride and uranyl chloride to plutonium trichloride and uranium tetrachloride, respectively, and to prevent the reoxidation of the plutonium trichloride and the uranium tetrachloride. An amount to obtain a threeto fivefold excess over that required for the above reduction was found satisfactory, a fivefold excess being preferred. Any excess of stannous chloride is easily removed, since it is converted in air to stannic chloride which volatilises at about 114‹C. Specification 931,632 is referred to.
Patent GB-1241373-A (GB)
Title: Battery laying sheds
Inventor: SUTTON WILLIAM
IPC: A01K31/00
Filed: 1969-04-19
Abstract: 1,241,373. Battery cages. SUMMIT AGRICULTURAL EQUIPMENT Ltd. 20 April, 1970 [19 April, 1969; 19 July, 1969], Nos. 20089/69 and 36445/69. Heading A1M. A battery laying shed comprises a roof structure, a plurality of support members 6 inclined to form one or more inverted shaped structures extending transversely across the shed in longitudinally separated rows to support stacks of battery cages 8 in echelon, and a ground engaging structure including member 1 and additional members 10, such that the support members 6 support the roof structure on the ground engaging structure. A rigid link member 5 extends across the ground engaging members 1 and 10 to support the support members 6 which are secured at their upper ends to vertical connection member 7 which extend to support the roof structure. The roof structure comprises horizontal prefabricated sections 2 and inclined outer surfaces 3 spaced by struts 4 or as in an alternative embodiment the roof structure, including the inclined surfaces, may be formed in prefabricated sections. At the lower apices formed by the support members 6 floor walls 9 are provided. The additional ground engaging members 10 may be omitted to allow convenient mechanical collection of droppings from the cages.
Patent GB-856341-A (GB)
Title: Metallised fabrics
Inventor: COLLINS GEORGE ERNEST
IPC: D06Q1/04
Filed: 1956-11-30
Abstract: 856,341. Projection screens. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. Nov. 27, 1957 [Nov. 30, 1956], No. 36624/56. Class 97(1). [Also in Groups VII, VIII and XXII] A metal-surfaced fabric which may be used for projection screens, comprises a porous woven, unwoven, knitted, netted or other textile fabric, or woven metal fabric, having applied to at least one surface thereof a metal foil which conforms to its surface contours and is rendered porous by rupturing inwardly at some or all of its interstices.' The foil is preferably secured by an adhesive, for example that sold under the Registered Trade Mark "Cellu-Gum". The fabric may be made from natural, synthetic or glass textile yarn, for example may be of plain woven cotton or continuous filament viscose. A suitable metal fabric is copper gauze. For the metal foil aluminium is preferred but gold, silver, copper or tin may also be used. Figures are given illustrating the reflecting and other properties of various aluminium-surfaced basic fabrics made according to the invention, for example a close weave cotton basic fabric gives good reflection for normally incident light and is useful for a projection screen in a narrow auditorium whereas an open weave viscose fabric gives reflection which is less bright but effective over a wider angle and can be used in a wider auditorium. The product may be made by pressing the foil on to the fabric e.g. by soft rubber. In Fig. 3 a web 11 of foil is coated with adhesive at 18 by a floating doctor blade and is pressed on to a web of fabric 12 in the nip of hard rollers 16 one of which carries a soft rubber belt 21 tensioned by a roller 22. In an alternative apparatus coating rollers are used and one of the rollers 16 has a soft rubber covering. In a third apparatus a sheet of adhesive coated foil is pressed to a sheet of fabric in a flat press through the medium of a sheet of soft rubber.
Patent GB-989442-A (GB)
Title: Selective plug-in assembly
IPC: H01R13/518
Filed: 1962-09-27
Abstract: 989,442. Plug boards; two-part couplings. SQUARE D CO. Sept. 27, 1962 [Feb. 21, 1962], No. 36644/62. Heading H2E. [Also in Division H1] Plug-in connections to an assembly of components, encapsulated in insulating material and enclosed by an open-sided casing 1, are made by means of terminal blocks 2 arranged in the open side, the blocks 2 having through passages 21 in which are located conductive inserts 30 each of which is of sintered metal powder, has two pin-receiving sockets 35 and an open wiring notch 38. The tapered inserts 30 are pressed into passages 21, distorting ribs in side walls 24, until they engage complementarily tapered walls 24a, when notches 38 partially protrude for soldering. The terminal blocks 2, which are of rubber or synthetic plastic, and spacer blocks 3 are arranged as shown in Fig. 4, and the assembly of components, leads and bus-bars may be encapsulated in plastic material either before or after mounting in casing 1, in which they are fixed by a bolted-on rim 4.
Patent GB-406964-A (GB)
Title: Medicated alcoholic beverages
Filed: 1933-12-30
Abstract: Alcoholic beverages, particularly wines, are medicated by adding iodine and/or compounds of iodine thereto.  The iodine combines with natural constituents of the beverage, for example, with the unsaturated bodies, essential oils, alcohols, and colouring matters such as oenin.  Suitable iodine compounds are iodides of potassium, sodium, iron, manganese, and the like.  A solution of iodine in the iodide with an addition of ethyl alcohol may be stirred into the untreated beverage, which is then allowed to stand on stillage for at least three weeks at from 55 DEG  to 65 DEG  F. before bottling.  The proportion of iodine added should not exceed 8 grammes per gallon of the beverage.
Patent GB-942418-A (GB)
Title: Process for the manufacture of p-hydroxybenzoic acid
IPC: B01J19/18
Filed: 1961-10-12
Abstract: P-hydroxybenzoic acid is produced by reacting potassium phenolate with CO2 at 180 to 210 DEG C. under a pressure of 2 to 6 atmospheres gauges in a non-reactive atmosphere, the non-reactive gas being continuously removed from the reaction vessel and, after being cooled, being recycled through the reaction mixture to the reaction vessel.  The process may be conducted by introducing potassium phenolate into an autoclave and pressing-in CO2 and a non-reactive gas, e.g. N2, so that the pressure is held at 1-2 ats. gauge until the beginning of reaction. CO2 together with N2 is conducted through a gas circulating system which leads from the autoclave to a cooler and back into the autoclave, the total pressure in the autoclave being increased slowly to 5.6 ats. gauge.  By varying the speed of the circulating gas and the effectiveness of the cooler the temperature in the autoclave can be kept constant.  The phenol formed by the reaction is driven out of the reaction vessel with the circulating gas and separated in the cooler. The CO2 consumed during the reaction is continuously replaced.  In some circumstances the cooling effect of the gas on re-entering the reaction vessel is too great so that the mixture of CO2 and non-reactive gas must be preheated after the separating of the phenol by an adjustable preheater.