baber/WOPTO huggingface dataset:
Patent GB-1531458-A (GB)
Title: Integrated heat treatment process
IPC: F27B7/36
Filed: 1975-03-12
Abstract: 1531458 Utilizing waste heat in calcining process ASSOCIATED PORTLAND CEMENT MFRS Ltd 12 March 1976 [12 March 1975] 10303 /75 Heading F4B In a calcination process comprising an endothermic stage and an exothermic stage, at least part of the heat for the endothermic process is first partly used in a boiler, and part only of the heat for the endothermic stage is taken from the exothermic stage, the boiler being used for power generation and part of the heat being recovered from the endothermic stage. In a cement plant, Fig. 2, comprising a drying and preheating zone 1, a calciner 2, and a sintering kiln 3 followed by a eooler 4, air heated in the cooler 4 is supplied to the kiln at 112 to the calciner 3, and to a waste boiler 19. Fuel is fed to the kiln B and additional fuel and the gases from the kiln are fed to the calciner 2 at 120 and 13. Gases from the ealciner 2, mixed with the air from the cooler and fuel are fed to the waste heat boiler, and the drier 1 is supplied with exhaust gases from the boiler 19. The air fed to the cooler may be heated in a condenser for steam from the boiler 19. The waste heat boiler may receive only hot air from the cooler, and the waste gases from the boiler may be fed to the calciner (Fig. 1). The steam from the waste heat boiler is utilized in an electric power generating turbine, the spent steam and water from the turbine being used to heat air for the cooler, and to provide heat for mills, spray driers or other ancillary apparatus before being reheated and recycled (Figs. 4 and 5). The waste heat boiler 19, Fig. 3, receives hot gas through a duct 115, and the hot gases from the boiler are supplied to preheater 1. The steam from boiler 19 is fed to turbine 24, and may be superheated before reaching the turbine in a heat exchanger 35 in the preheater second stage 102. The effluent from the turbine passes to condenser 26 to heat air for the cooler and the first stage 101 of the preheater 1. The condensate is returned by a pump 31 through an economizer 32 in the preheater second stage 102 to a second pump 23.
Patent GB-1174306-A (GB)
Title: Improved Backing for Carpets and Process for Producing same.
Inventor: KAPPAS GEORGE
IPC: C09D123/04
Filed: 1967-03-20
Abstract: 1,174,306. Coated fibrous webs. NATIONAL DISTILLERS & CHEMICAL CORP. 20 March, 1967 [21 March, 1966], No. 13011/67. Heading B2E. A fibrous web is coated with and penetrated by a thermoplastic selected from polyethylenes having a molecular weight of from 10,000- 20,000, stereo block polypropylenes; or by a blend of a first thermoplastic component having a molecular weight less than 10,000 selected from microcrystalline waxes, petroleum waxes, paraffin waxes, and olefin polymers and copolymers having a molecular weight of less than 10,000 with a second thermoplastic component selected from olefin polymers and copolymers having a molecular weight of more than 20,000. The thermoplastic is applied to the fibrous web and then pressure applied so that the thermoplastic penetrates therethrough. At least one of the thermoplastics may be applied as a powder; and heated to melting; and solidified by cooling whilst applying pressure to the web. Both thermoplastics may be polyethylenes and the heating is conducted at a temperature of from 300 to 550F. The thermoplastics may be applied separately to the web. The first thermoplastic may be appled to the web and melted thereon before the second thermoplastic is applied and melted; both thermoplastics may be polyethylenes, the first being melted on the web by heating to 300-450F and the second by heating at 400- 550F; both thermoplastics may be applied as powders. Alternatively the polyolefines may be applied as a melt by extrusion. The fibrous web may be textile or a carpet e.g. a looped pile tufted carpet containing rayon and nylon or a continuous filament nylon carpet.
Patent GB-1127705-A (GB)
Title: Polymerization catalysts and methods of manufacturing polyolefins
Inventor: MATSUURA RYO
IPC: C01F7/442
Filed: 1966-03-09
Abstract: 1,127,705. Polymerisation catalyst. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 9 March, 1966, No. 10381/66. Heading B1E. A polymerization catalyst having a Cl/Ti ratio of 2.5 to 3.5 is prepared by reacting a substantially amorphous alumina having a particle size of 10-150Á., a specific surface area not less than 100m<SP>2</SP>/g and a total pore volume less than 0.7ml/g in a fluidised bed with TiC1 4  at a temperature of from 50C-600C and further reacting the resulting reaction product with a chlorinating agent at a temperature of from 100C-600C. The catalyst may also comprise Na, K, Li, Mg, Ca, Al, NaH, KH, LiH. MgH 2 , CaH 2 , LiA1H 4 ,NaA1H 4 . The substantially amorphous alumina may be prepared by calcining a substantially amorphous alumina hydrate in an inert gas at 300C-700C, the alumina hydrate being prepared either by hydrolyzing aluminium isopropylate in the presence of a hydrophobic solvent with an HCl solution of a pH less than 4, or by adding an aqueous colloidal solution of basic aluminium sulphate to a water immiscible inert organic liquid at 40C-100C to form spherical hydrogels, rinsing the hydrogels in water before syneresis occurs to remove sulphate ions or aluminium sulphate, washing away gradually sulphate ions remaining in the hydrogels, and drying the spherical hydrogels.
Patent GB-351121-A (GB)
Title: Improvements in epicyclic gears
IPC: F16H57/10
Filed: 1930-04-03
Abstract: 351,121. Variable-speed epicyclic gearing. ROYCE, SIR F. H., Nightingale Road, Derby. April 3, 1930, No. 10557. Grant of Patent opposed. [Class 80 (ii).] In epicyclic variable-speed gearing, a combined friction and positive brake is used for stopping the sun-wheel or annulus, the friction brake being manually applied and the positive stop engaging automatically as the braked member begins to turn in the direction reverse to its normal direction of rotation, as occurs in certain types of epicyclic speed gearing. The positive stopping- means is similar to that described in Specification 350,114. The annulus c carries teeth c<1> engageable by lugs f<4>, 15 on levers f, f which are pivoted on levers e, e<1> pivoted at their ends e<2>, e<3> in the frame and interconnected by a lost-motion connection e<4>, e<6>. The levers f, f<1> are actuated to move in opposite directions by a rod g<7> operated by the friction brake mechanism and turning a lever g<1> pivoted on the lever f<1>. A rod g4 connects the lever g<1> to a.lever g pivoted on the lever f and connected by a link g<5> to the frame. Excessive pressure by the annulus in the circumferential direction on one lever f or f<1> effects a compensating movement of the other. Spring means arranged in a casing i supports the lever e &c. upon the frame and tends to maintain the parts in central position. The friction shoes j<1>, j<2> are carried on a loose carrier j concentric with the annulus c, a link k connecting one shoe to a lever k<1> operating the rod g<7>, the other shoe'being connected by an adjustable rod n to a lever m<1> pivoted on the link k and manually operated from a lever l. The annulus normally rotates counter-clockwise and when stopped by the frictional brake turns clockwise, moving the brake and carrier j against the action of a spring o<2> to engage the positive stopping means. On release of the friction brake, the spring o<2> disengages the positive brake.
Patent GB-795573-A (GB)
Title: An improved process for the preparation of higher aliphatic alcohols
IPC: C07C67/03
Filed: 1956-04-06
Abstract: Higher fatty alcohols are obtained by a continuous process from fatty materials, which include vegetable and animal oils and fats, by first catalytically treating the materials under superatmospheric pressure and elevated temperature with an excess of a monohydroxy aliphatic alcohol so that the fatty materials are converted to glycerin and alkyl esters of the acids present in the fatty materials; the esters are then catalytically hydrogenated to higher fatty alcohols, the excess hydrogen and the freed monohydroxy alcohol being separated and the alcohol being recycled to the transesterification stage.  If the initial fatty materials contain glycerides of unsaturated fatty acids and it is desired to produce only saturated alcohols the hydrogenation must be effected in two stages at different temperatures and using different catalysts.  For example, a mixture of zinc and copper chromite may be used at 300-360 DEG  C. for the reduction of the esters and a nickel silicate catalyst at 180-250 DEG C. for the saturation of the double linkage.  In the examples: (a) coconut oil and methanol are heated under pressure in the presence of a zinc silicate catalyst and the methyl esters are separated from glycerin; the esters are hydrogenated in the presence of a copper-zinc chromite catalyst to give higher fatty alcohols and methanol which is recycled to the transesterification stage; (b) tallow grease is treated as in (a) and the alcohols obtained are subjected to a second hydrogenation at a lower temperature in the presence of a nickel silicate catalyst to saturate the unsaturated alcohols present; and (c) the alcohols obtained by the treatment of coconut oil as in (a) are subjected to a second hydrogenation at a lower temperature in the presence of a nickel silicate catalyst to give saturated alcohols.ALSO:A copper/zinc chromite catalyst for use in the hydrogenation of ester groups is obtained by adding zinc oxide and chromic oxide successively to a mixture of cupric oxide, acetic acid and water; the mixture is heated until the solids are dissolved and powdered active carbon is added; the mixture is then evaporated to give the required catalyst.  A nickel silicate catalyst for use in the saturation of olefinic linkages is obtained by treating a sodium silicate solution with caustic soda solution; a mixture of a solution of nickel nitrate in water and metallic nickel, partially neutralized with sodium carbonate, is added to the alkaline sodium silicate solution; nickel silicate is precipated, filtered off and mixed with fibrous asbestos which has previously been washed with nitric acid; the resulting mixture is dried to give the desired catalyst.  Zinc silicate is prepared by adding acetic acid to a suspension of zinc oxide in water at 70 DEG  C., adding the zinc acetate solution formed to an aqueous solution of sodium silicate, separating and washing the precipitated zinc silicate and heating it first at 40-50 DEG  C. and then at 130 DEG  C.
Patent GB-325423-A (GB)
Title: A device for holding tickets and the like
IPC: B61D41/02
Filed: 1929-04-06
Abstract: 325,423. Handy, C. P. April 6, 1929. Clips, spring wire.- A device for holding tickets and the like comprises a number of independent helical spring clips F, the ends being secured between a base plate A and a cover plate C.
Patent GB-645091-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/34
Filed: 1948-04-17
Abstract: 645,091. Securing arms on shafts. O'SHEI, W. E. April 17, 1948, Nos. 10693 and 11066. [Class 80(ii)] '[Also in Group XXIII] A means for securing a windscreenwiper arm to a driving spindle (see Group XXIII), comprises a split collet 9  for gripping the spindle which collet is contracted into a tapered bore 8 in the arm head 3 by means of a nut 10. The nut is interlocked with the collet by means of the enlarged or spun over end 14, of a tubular extension 12 of the collet, engaging in a recess 15 in the nut. Whilst the collet can turn relatively to the nut, it is withdrawn longitudinally from the bore when the nut is unscrewed. A slotted bush 18 is provided for insertion into the collet so that the arm may be fitted to several sizes of spindles. The bush has a collar 21 which is received by the recess 15 in the nut. The nut may be internally threaded to screw on to an externally threaded spigot projecting from the head 3. Specifications 497,027 and 497,366 are referred to The First Provisional Specification states that, the collet may be provided with a groove in its external surface with which the nut may interlock, the nut for example being spun over into the groove.
Patent GB-814978-A (GB)
Title: Improvements in or relating to textile labels
Inventor: JORDAN CLIFFORD VAN SCOY
IPC: G09F3/04
Filed: 1956-04-09
Abstract: 814,978. Woven labels. ELECTRO-SEAL CORPORATION. April 9, 1956, No. 10744/56. Class 73 [Also in Group IX] A label of single-ply woven fabric with indicia, J-H, on its front face has thermoplastic threads that become adhesive, when subected to heat and pressure alone, woven into at least one of its integral areas 11 and exposed on its front face only, the marginal areas, as at 11a and b being reversibly foldable out of sight to attach the label to an underlying surface. A plurality of labels may be woven in a strip 10 that is cut transversely to form labels having either one, or two, adhesive margins, as desired. The labels may be similarly formed with adhesive margins on the front surface of either one, or two, of their longitudinal edges, either in addition to, or without, the adhesive transverse margins. Similar margins may be woven on odd-shaped badges or chevrons (Fig. 13, not shown). The method of wearing is described (Fig. 1, not shown).
Patent GB-579057-A (GB)
Title: Improvements in or relating to propellant compositions suitable for projectiles of the reaction-impulse type
IPC: C06B21/00
Filed: 1943-07-03
Abstract: A propellant suitable for projectiles of the reaction-impulse type (or for assisting in the take-off of aeroplanes) is made by mixing a gas-generating powder with thermosetting artificial p  resin in liquid form, cold-moulding the mixture, and then curing the moulded product by heat.  The powder comprises an oxidizer such as sodium nitrate (50 per cent by weight) and a reducer such as ammonium picrate (50 per cent by weight).  The resin may be the condensation product of formaldehyde with phenols, alkyl substituted phenols (such as tertiary butyl or tertiary amyl phenol), phenylphenol, melamine, substituted melamines; or may be polybasic acid-polyhydric alcohol condensation products, or a mixture of plasticised polyvinyl acetal composition with enough urea- or melamine-formaldehyde condensation product to make the mixture thermosetting.  The resin is used in the partly condensed liquid state, with or without a solvent such as xylene, and may form 5 to 10 per cent by weight of the mixture of resin and powder.  The mixture is pressed at 15-35 DEG  C., and the resultant block is examined for microscopic cracks by painting with a dye. When the resin contains solvent, the blocks are partly cured by enclosing them in sealed containers (to prevent solvent evaporation and resultant cracking of the blocks) and heating in an oven at 60 DEG  C. for 6-8 days, then fully cured in the open (without the containers) at 60 DEG  C. for 2-4 days.  When the resin does not contain solvent, the whole of the cure may be effected in the open. A phenol-formaldehyde condensation product may be made by condensing 1 mol. of phenol with 2 mols. of formaldehyde in the presence of an alkaline catalyst to a point at which the liquid resin has a viscosity between 500 and 10,000 poises at 25 DEG  C.  The alkaline catalyst is then neutralized and replaced by an acid catalyst and the resulting thermosetting material may be dissolved in xylene.  The ratio of phenol to formaldehyde used in making the condensation product may be 1 : 1 or 1.2 : 1.6 (molecular proportions).  The mixture of sodium nitrate and ammonium picrate accelerates the cure of the resin.  Specifications 248,089, [Class 9 (ii)], 354,305, [Group XXI], and 579,058 are referred to.
Patent GB-195532-A (GB)
Title: Improvements in boring bars
IPC: B23B29/034
Filed: 1922-04-18
Abstract: 195,532. Soc. Anon. des Anciens Etablissements Hotchkiss et Cie, and Taylor, H. E. April 18, 1922. Boring-heads.-The cutters of a boring-tool are carried in a head B which is so constructed as to be detachable from the shank A without the necessity for the removal of the latter from the machine spindle. The cutters D are adapted to cut on their sides and heading faces and, after being set by a gauge, are locked in their adjusted positions in the head B which is secured to the shank A by a tapered spigot A<3> and cotter C. Key-pieces E locate the head on the shank and relieve the cotter from shear stress. Sockets.-Simitar key-pieces F may be used to locate the shank on the machine spindle.
Patent GB-156446-A (GB)
Title: Improvements in or relating to gauges for liquids
IPC: G01L7/00
Filed: 1920-04-19
Abstract: 156,446. Kilburn, B. E. D., (Sulzer Akt.-Ges. Geb.). April 19, 1920. Gauge glasses. - A gauge glass for use with liquids below freezing-point is provided with an electric heater adjacent to it to prevent condensation of moisture or snow on the glass. A gauge a having pipe connections b is provided with an electric heater e within the casing f. The liquid level n is observed through the glass g, which also tends to retain the heat given off by the heater. Reference has been directed by the Comptroller to Specifications 7810/99 and 18574/01.
Patent GB-1035616-A (GB)
Title: Device for machining pipe ends
IPC: B23B5/16
Filed: 1964-03-16
Abstract: 1,035,616. Machine tool details. MARCUS VON BUSHE, and ALTENBRACHT, [trading as TH. KIESERLING & ALBRECHT]. March 16, 1964 [June 27, 1963], No. 11048/64. Heading B3T. A device for facing, and deburring pipe ends comprises a hollow shaft 3 driven by a gear 2, and mounted in a machine bed 1, a spindle 5 rotatably fixed, but axially slidable in the shaft, and a piston 6, slidable in the spindle. A slide 11 carries radially adjustable tool holders 12, 12a, for cutters 13-15, and co-operates with an oblique projection 9 in the piston, so that as the piston is moved axially, slide 11 is moved radially. In operation, fluid is supplied to chamber 20 through a passage 6c in piston 6. Spindle 5 and piston 6 move towards pipe 18, and cutter 15 faces the end of the pipe, until a stop 8 abuts bed 1. Piston 6 continues to move axially against springs 6a, 6b, until guide 6d abuts bed 1, and slide 11 moves radially, so that cutters 13 and 14 remove the burrs on the outside and inside of the pipe respectively.
Patent GB-1173960-A (GB)
Title: Unsaturated Lactones of the Steroid Series and Process for their Manufacture
IPC: C07J75/00
Filed: 1967-03-09
Abstract: 1,173,960. #<SP>α,#</SP> - 17# - Butenolides of the androstane series. FARBWERKE HOECHST A.G. 9 March, 1967 [10 March, 1966], No. 11053/67. Heading C2U. #<SP>α,#</SP>-17#-butenolides of the androstane, androstene and androstadiene series are prepared by reacting a 21-hydrohalic or sulphonic acid ester of a 3,20-dioxo-21-hydroxy-5#-pregnane or -#<SP>4</SP>-pregnene which may contain in the 15- position a further sulphonic acid acyloxy group or a halogen atom with an alkali metal salt of a malonic acid semi-ester and treating the malonic acid diester obtained with one or more tertiary organic bases with or without salts thereof. If the starting material contains a 15-substituent the product contains a #<SP>14</SP> double bond. #<SP>4</SP>-Pregnene - 15α,21 - diol - 3,20 - dione 15,21- dimesylate is prepared from the free diol and methanesulphonyl chloride. Desoxycorticosterone 21 - mesylate and 5# - pregnane - 15α,21 - diol- 3,20-dione 15,21-dimesylate are prepared similarly. 5# - Pregndne - 15α,21 - diol - 3,20 - dione is prepared by catalytic hydrogenation of the corresponding #<SP>4</SP>-pregnene.
Patent GB-863571-A (GB)
Title: Separation of plutonium and fission products from uranium
IPC: C01G56/00
Filed: 1946-04-10
Abstract: 863,571. Concentration of plutonium. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 10, 1946 [April 5, 1945], No. 11082/46. Class 39(4). Plutonium and fission products are separated from neutron-irradiated uranium by forming a solution in which the uranium is present in the uranyl form and crystallising out a uranium salt, leaving plutonium and fission products in the mother liquor. Neutronirradiated uranium may be dissolved in concentrated nitric acid or sulphuric acid at 75‹- 100‹C., the hot solution cooled with agitation to 25-30‹C., and the crystals centrifuged off; for separation of more plutonium, the crystals are redissolved and the process repeated. Alternatively an acidic saturated solution of the uranium may be formed and then nitrogen dioxide gas, concentrated nitric acid, sulphur trioxide gas, or fuming sulphuric acid added to effect crystallisation. Reference is also made to the crystallisation of uranyl phosphate and uranyl oxilate.
Patent GB-436538-A (GB)
Title: Improvements in or relating to shuttle check devices for looms
IPC: D03D49/24
Filed: 1934-04-13
Abstract: 436,538. Checking loom shuttles and pickers. HEYWORTH, E. L., Elswick, Mellor, Blackburn. April 13, 1934, No. 11120. [Class 142 (iii)] A shuttle &c. check device comprises a pivoted lever unit embodying at its fulcrum a friction or fluid resistance device the lever being carried by a baseplate secured to the lay and being adjustably connected, by check straps, to the check end and buffer or to the check ends in the two shuttle boxes. In the construction shown in Figs. 1 and 3, the check end and buffer q, q<1> respectively are connected to a lever i which is pivotally mounted between two friction elements h on a bolt f carried by a base plate b, the movement of one member q or q<1> under the action of the shuttle or the picker resetting the other. The desired pressure is maintained between the friction elements by a spring n<1> and an adjustable nut o on the bolt f. In a hydraulic arrangement shown in Figs, 6 and 7, the shuttle or picker is checked by the resistance offered to a paddle ul rotatably mounted in an oil or other fluid-containing casing r on the lay, the paddle being mounted on a spindle u provided with an arm v for attachment to the check straps. The casing is provided with a radial wall s having a valve opening s<1> into which projects an adjustable screw s<2>. Spring or other resilient means for absorbing and returning energy may be used in combination with the resistance device. Specification 286,085, [Class 142 (iii)], is referred to.
Patent GB-165984-A (GB)
Title: Improvements in valve gear for direct acting duplex steam engines
Filed: 1920-04-22
Abstract: 165,984. Auld & Sons, Ltd., D., and Rose, D. April 22, 1920. Toothed gears; oscillating disc and cylindrical valves.-Disc or cylindrical oscillating distributing-valves A, B, each controlling the admission and exhaust of a cylinder of a duplex steam pump, air compressor, &c., are actuated by means of toothed quadrants a, b carried by or formed on the valve, and which engages racks c, d mounted on spindles e carrying tappets f, g, j, k actuated by the cross-heads h, l of the adjacent cylinders.
Patent GB-1499265-A (GB)
Title: Device for detecting microbe infections
IPC: C12M1/28
Filed: 1976-03-19
Abstract: 1499265 Detection of micro organisms INTERTECHNIQUE (SA) 19 March 1976 11234/76 Heading G1B [Also in Division C6]  A device for detecting microbial infections e.g. the presence and gravity of a urinary tract infection, consists of a plastics strip 11, Figs. 2 and 3, prolonged by a gripping means 16 and formed on both sides with cells 17, 18 filled with solid culture medium. In the larger cell 17 used for counting purposes, the medium may be one designed to inhibit the growth of all Gram-positive microorganisms. Of the nine smaller cells 18, three areas can be provided for identification purposes e.g. detecting indole-acetic acid developing, lactose positive and negative reacting, and deaminase producing bacteria, and six areas for preparing antibiograms using e.g. ampicillin, nalidixic acid and sulphonamides in two concentrations viz a normal concentration for use in human therapy and the maximum tolerated concentration, respectively. In another embodiment, the plastics strip consists of 3 or 4 rectangular flaps 1, 2, Fig. 1, extending from a core, the flaps being regularly distributed around the core and having cells in each of their two sides. The transfer bottle 4 including the mounted plastics flaps may be fitted prior to use, within a larger bottle 5 for urine collection.