baber/WOPTO huggingface dataset:
Patent GB-1148727-A (GB)
Title: A method for the production of inosine
IPC: C12P19/40
Filed: 1966-05-13
Abstract: 1,148,727. Inosine. TAKEDA CHEMICAL INDUSTRIES Ltd. 13 May, 1966 [14 May, 1965], No. 21452/66. Heading C2C. Inosine is obtained by inoculating a culture medium containing adenine, or a source of adenine, with a mutant strain of Bacillus pumilis Gottheil which requires at least adenine for its growth, said culture medium also containing calcium secondary phosphate and/or calcium tertiary phosphate, incubating the culture medium and recovering inosine therefrom. The mutant strain may be induced by conventional techniques or may be isolated from naturally occurring Bacillus pumilis. It is preferred to effect incubation under aerobic conditions at 20-50 C. using a culture medium at pH 5À0-9À0 containing 0À2-5À0% by wt./ vol. of the calcium secondary or tertiary phosphate, an assimilable carbon source, a digestable nitrogen source and other growth nutrients. Inosine is recovered using conventional techniques.
Patent GB-687967-A (GB)
Title: Filter element
Inventor: BURKS GEORGE EDWIN
IPC: B01D29/11
Filed: 1950-09-04
Abstract: 687,967. Making wire filter elements. CATERPILLAR TRACTOR CO. Sept. 4, 1950, No. 21731/50. Class 83 (ii). [Also in Group I] A method of making a filter element from metal ribbon having projections from one of its faces comprises coating the ribbon with a metal having a fixing point lower than that of the ribbon, forming a helical coil of the coated ribbon with the projections of each convolution in contact with an adjacent convolution to provide filter spaces between the convolutions, and then heating the coil to the fusing temperature of the coating metal to bond the projections to the adjacent convolutions. In the filter element shown in part, the ribbon 10 is tapered in cross-section. The element may be made by copper-plating the ribbon and winding it upon a mandrel with the ribs 11 in intimate contact with the adjacent convolutions. The element is then immersed in a suitable flux, for example 80 per cent borax and 20 per cent methyl alcohol, and the ribs are then brazed to the adjacent convolutions by heat treatment to the fusing temperature of copper in a furnace having an oxygen-free atmosphere.
Patent GB-1430423-A (GB)
Title: Joint structure
IPC: F16B7/22
Filed: 1973-05-09
Abstract: 1430423 Joints for plastics panels &c GKN SANKEY Ltd 3 May 1974 [9 May 1973] 22040/73 Heading F2M Plastics panels 10, 11, or other structural members having a substantial thickness and requiring to be joined at adjacent edges to provide an uninterrupted surface at the joint, are provided with complementary grooves and projections as shown, at least the base portion 24 of one of two mutually perpendicular grooves 12, 13 in the panel 10 being adapted to flex resiliently so that, as tongue 19 on panel 11 is forced into groove 12, the wall 17 of groove 13 adjacent the edge of panel 10 can move upwardly as shown to allow projection 20 to pass under it and enter the groove 13, the wall 17 then snapping into a groove.21 on panel 11. The outer edge of the wall 17 is radiused at 18 to facilitate this action.
Patent GB-397298-A (GB)
Title: Improvements in or relating to devices for gauging the spacing of the work supports or guides in inclined roller type machines for the straightening and true rounding ofbars
IPC: B21D3/04
Filed: 1932-08-05
Abstract: 397,298. Rolling. MASCHINENBAU-AKT.-GES. VORM. EHRHARDT & SEHMER, Saarbrucken, Germany. Aug. 5, 1932, No. 22060. Convention date, Feb. 29. [Class 83 (iv).] In straightening a rod c by skew rolls b1, b2, the rod being supported between guides d, e, the spacing of the guides is measured on the scale n of a feeler rod m sliding in the sleeve k of one of the spacing adjusting nuts i. The rod m is momentarily depressed by hand to touch the lower guide when a reading is to be taken, and when released jumps up owing to the spring o. The guide e is secured to a slide h movable in the cross-piece g and is adjusted up or down by hand-wheel p. The bottom guide d is also adjustable, by wedges.
Patent GB-511396-A (GB)
Title: Improved machine for testing and measuring the resistance of metals to cutting tools such as drills
IPC: G01N3/58
Filed: 1938-07-25
Abstract: 511,396. Testing physical qualities of materials. DALCHER, J. T. July 25, 1938, No. 22070. [Class 106 (ii)] The resistance of metals to cutting tools such as drills is determined by providing the spindle of a drilling machine with two parts between which is arranged a spring which is compressed when the machine is drilling a specimen, the amount of compression being indicated by the number of grooves visible on an indicating ring. The usual spindle 14 of the machine has secured to it a sleeve 15 within which slides a sleeve 18 carrying the conical socket 19 for the drill 21. A bushed socket 22 receives the lower end 24 of the drill spindle and a spring 26 is housed between this socket and the inner walls of the sleeve 18 which is provided with screws 17x sliding in slots 17 in the sleeve 15. An index ring 29 is provided with deep grooves between each pair of which are three shallower grooves. The ring is chromium plated and polished, Light from a source 52 is projected on to the ring 29 and is reflected to a plain white screen through a projecting lens 59, the grooves appearing black on a light background. Each specimen 35 is drilled with a pilot hole 37. A pressure is applied by the feed mechanism when drilling and the amount of compression of the spring 26 is a measure of the resistance of the material. The index ring 29 becomes pushed into the sleeve 16, and the number of grooves on the index ring still uncovered is a measure of the compression of the spring and by using a pressure diagram for springs, the required resistance is obtained. By drilling different specimens with the same drill under the same conditions comnarison tests msy be made. For harder and tougher materials the spring may be exchanged for a heavier one.
Patent GB-902018-A (GB)
Title: Time-temperature indicator
IPC: G01N33/02
Filed: 1959-06-29
Abstract: The bacterial spoilage of food is determined by maintaining a microorganism in a nutrient medium in the same environment as the foodstuffs and providing an indicator system to measure the growth of said organism.  The dry nutrient medium bacteria and indicator may be kept in the compartment of a package which is separated by a rupturable membrane from a compartment containing water which will initiate growth when mixed with the dry composition.
Patent GB-864775-A (GB)
Title: Improvements in or relating to methods of and apparatus for refining aluminium electrolytically
IPC: C25C3/16
Filed: 1957-07-12
Abstract: 864,775. Fused-electrolyte cells. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. July 12, 1957 [July 13, 1956], No. 22203/57. Class 41. An electrolytic cell of the three-layer type for refining aluminium has metallic current supply means 3 which penetrate into the cell to establish direct contact with the molten alloy 4 to be refined when the alloy is in the cell. The means 3 comprise a bar or bars which may be horizontal, vertical or oblique, and may be cooled at their outer ends 8 by a cooling fluid. The bars 3 may be of iron base alloys, cast iron, or stainless or common steel. If desired, carbonaceous soles may be retained as anode leads in the base of the cell to facilitate starting, electrically in parallel with the bars 3, and a chamber 11 for segregating iron-rich crystals 12 may be provided. In one example, in which a number of steel bars 3 were cooled at their ends 8 by allowing water to drop on them, an anodic voltage of 0.19 was achieved employing 18,000 amps. at a current density in the bars of 30 amps. per square cm.
Patent GB-1177397-A (GB)
Title: Improvements relating to photosensitive materials.
IPC: G03C1/62
Filed: 1967-05-15
Abstract: 1,177,397. Photographic materials. PHILIPS' GLOEILAMPENFABRIEKEN N.V. May 15, 1967 [May 14, 1966], No.22337/67. Heading G2C. Photo-sensitive material is prepared by impregnating a surface layer of a substrate, of which at least the said surface is electrically insulating, with an aq. soln. comprising an aromatic diazosulphonate, an anti-regression agent and 10<SP>-4</SP>- 10<SP>-2</SP> g. equivs./1. of a mercuric salt, wherein the g. equiv concn. of the diazo-sulphonate is at least 10 times the concn. of the mercuric salt. The mercuric salt may be added to the sensitizing soln. directly as a mercuric salt e.g. Hg(NO 3 ) 2 , or as an aq. soln. of mercurous salt to give a concn. of at least 10<SP>-2</SP> g. equivs. /1 of the mercurous salt in the sensitizing soln., which mercurous salt will supply the desired mercuric salt via the equilibrium Hg 2  <SP>++</SP> # Hg<SP>++</SP> + Hg. The anti-regression agent may be a salt of Zn, Cd, Pb, Cu, or Ag e.g. the diazo-sulphonates or lactates thereof. Metal germ images are formed by imagewise exposing the material, washing with a soln. containing a mercurous and a silver compound if necessary, and physically developing in the usual manner.
Patent GB-1182257-A (GB)
Title: 03-Alkyl-21-Hydroxy-18,19-Dinorpregn-4-Ene-3,20-Diones and Derivatives Thereof
Inventor: SMITH HERCHEL
IPC: C07J75/00
Filed: 1966-05-19
Abstract: 1,182,257. 13 - Alkyl - 21 - hydroxy - 18,19- dinorpregn - 4 - ene - 3,20 - diones. H. SMITH. 16 May, 1967 [19 May, 1966], No. 22342/66 Heading C2U. Novel steroids of the formula (wherein R<SP>1</SP> is C 2-4  n-alkyl; R is H or acyl; and X is acyloxymethylene, hydroxymethylene or carbonyl), alone or in admixture with their 13α-entantiomers, are prepared (1) from the corresponding 17-acetyl or -halocarbonyl steroids by standard procedures; or (2) from corresponding steroids containing in ring A a protected 3-keto group together with appropriate double bonds by hydrolysis. Process (1) may be effected (a) by converting a 17-halo. carbonyl steroid to the 21-diazo-pregnen-20-one and hydrolysing or acylolysing this to the required 20-on-21-ol or its acylate, the halocarbonyl steroid being prepared in turn by converting by a Wittig reaction the corresponding 3 - alkoxy - gona - 1,3,5(10) - trien - 17 - one to the corresponding 17-methylene compound, hydroborating this to the 17-hydroxy-methyl compound, oxidizing this to the 17-carboxy compound, reducing in ring A by the Birch method to give the corresponding gona-2,5(10)- diene and hydrolysing this to the gon-4-en-3- one, and halogenating the 17-carboxy group; or (b) by converting a 17-acetyl steroid to the haloacetyl compound and acylolysing to give the required 21-acyloxy-pregnen-20-one; or (c) by converting the 17-acetyl steroid to the 21-ethoxalyl derivative, halogenating this and acylolysing the product to give a product as in (b). Starting materials for process (2) are desirably 3-alkoxy-pregna-2,5(10)-dienes, prepared by Birch reduction of the pregna-1,3,5(10)- triene-20,21-diols or 20-on-21-ols or mono- or di-acylates thereof, the 20,21-diols being in turn prepared by ethoxyethynylating the appropriate gona- 1,3,5(10)-trien-17-ones, either hydrogenating and acid treating the thus-produced 21- ethoxy - 17α - pregna - 1,3,5(10) - trien - 20 - ynols to give the corresponding pregna-1,3,5(10), 17(20)-tetraen-21-ones and reducing these to the 21-ols or acid treating the 21-ethoxy-20-yn-ols to give 17-carboxymethylene compounds and reducing these to the 21-ols, and then tetrahydropyranylating these and hydroborating the products. The starting materials for process (2) may also be prepared by methods similar to those detailed under (a), (b) and (c) above. 17-Hydroxy or acyloxy-acetyl products may be reduced to the 21-ols and any of these compounds may be acylated or hydrolysed as appropriate. Specification 1,115,635 is referred to. The steroids of the invention, which have mineralo-corticoid or other steroid hormone activity, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-423747-A (GB)
Title: Improvements relating to draught and rain excluding fittings for casement windows, doors, and the like
IPC: E06B7/232
Filed: 1933-08-11
Abstract: 423,747. Draught-excluders for doors and hinged windows. PILKINGTON, H., 275, Blackburn Road, West End, Oswaldtwistle, Lancashire. Aug. 11, 1933, No. 22432. [Class 20 (iii)] Draught - excluders for doors, casement windows, and the like, of the kind comprising interengaging metal strips on the meeting edges of the door &c. and frame are characterized by an arched edge H on the strip attached to the door &c. and an upturned edge C on the edge of the strip on the frame remote from the edge of the frame projecting thereinto. At the corners, shaped pieces K are provided which overlap the ends of the longitudinal strips. When applied to windows hinged on an horizontal axis, the end of a strip is turned down at M to prevent rain entering. The hinge of the door &c. is preferably continuous.
Patent GB-654494-A (GB)
Title: Process for the preparation of ditolylethane
IPC: C07C2/86
Filed: 1948-08-26
Abstract: A process for preparing 1 : 1-di-p-tolylethane comprises adding paraldehyde to a mixture of toluene and sulphuric acid of about 87 to 95 per cent strength (i.e. comprising by weight acid and water in the ratio between 87 : 13 and 93 : 7 while maintaining the temperature below 10 DEG  C. and agitating the resultant mixture, the amount of toluene being more than about 25 per cent in excess of that stoichiometrically required by the paraldehyde, and the amount of sulphuric acid being such that its strength is not reduced below about 87 per cent by the water formed during the reaction.  Up to 50 per cent of the total toluene may be employed as diluent for the paraldehyde added to the mixture.  The best yields are obtained by conducting the reaction of 0 DEG  C., using 90 per cent sulphuric acid, and preferably an excess of 35 to 50 per cent toluene is employed.  In an example, 86 parts of toluene and 100 parts of paraldehyde are added to a mixture of 520 parts of toluene and 890 parts of 90 per cent sulphuric acid kept at 0 DEG  C. The product is distilled at reduced pressure from the separated hydrocarbon layer. The Specification also mentions fortifying the strength of the acid by adding oleum in the course of the reaction and refers also to the use of monomeric acetaldehyde in place of the paraldehyde, but these alternatives are said to lead to undesirable results.
Patent GB-1504127-A (GB)
Title: Clamp-in valves
IPC: B60C29/06
Filed: 1974-05-21
Abstract: 1504127 Valves SCOUILL MFG CO 7 May 1975 [21 May 1974 28 Aug 1974] 22649/74 and 37688/74 Heading F2V A tyre valve for mounting in a wheel rim from the outside comprises a stem 1 with a flange 9 of smaller diameter than the aperture in the wheel rim. An elastomeric grommet around the stem has a flange on the end remote from the flange 9 and on tightening a retaining nut 7 and washer 5 a bulge 25 forms in the grommet to retain the valve in the wheel. If used with a tubed tyre, Fig. 3 (not shown), a rubber spud (31) attached to the inner tube has a rigid member (33) embedded in it around the aperture in it in which the grommet is compressed, the wheel aperture being large enough to enable the nut and washer to pass through it. In an alternative embodiment, Figs. 6-11 (not shown), instead of the retaining nut there is provided a lock nut which snaps over a conical surfaced serration on the exterior of the stem when a dust cap is screwed on to the stem. As an insurance against the valve blowing out of the wheel aperture a spring washer (45) having diametrically opposed tabs (47), Fig. 13 (not shown), may be mounted on the stem between the grommet and the flange 9.
Patent GB-461323-A (GB)
Title: Improvements in the drying of cement slurry or the like
IPC: F26B1/00
Filed: 1935-08-12
Abstract: In the production of lime by burning lime slurry, the raw slurry is converted wholly or partly into froth or foam and is subjected to treatment in this form.  The conversion into froth is stated to facilitate the conveying of the slurry through pipes and the drying operation.  The slurry may be converted into froth by beating or forcing air through it or by adding gas generating substances, e.g. aluminium powder or calcium carbide; the calcium carbide may be impregnated with resin, oils, tars, silicates of low melting point, &c. in order to reduce the rate of evolution of gas.  Substances which lower the surface tension of the slurry such as soaps, e.g. resin soaps, gelatin or glue or mixtures thereof should be added to the slurry before it is beaten or aerated, ,05--2 per cent of the substance may be added.  The slurry may be treated to lower its viscosity before it is converted into froth.  The drying of the slurry may be effected in apparatus of the type in which the slurry is spread on moving chains that pass through a space traversed by hot gases.ALSO:In the manufacture of cement by the wet process or the production of lime by burning lime slurry the raw slurry is converted wholly or partly into froth or foam and is subjected to treatment in this form.  The conversion into froth, which may take place at various stages in the course of manufacture, is stated to facilitate the grinding and mixing of the raw materials, the conveying of the slurry through pipes and the drying operation. The slurry may be converted into froth by beating or forcing air through it or by adding gas generating substances, e.g. aluminium powder or calcium carbide; the calcium carbide may be impregnated with resin, oils, tars, silicates of low melting point &c. in order to reduce the rate of evolution of gas.  Substances which lower the surface tension of the slurry such as soaps, e.g. resin soaps, gelatin or glue or mixtures thereof should be added to the slurry or an ingredient thereof before it is beaten or aerated, 0,05-2 per cent of the substance may be added.  The slurry may be treated to lower its viscosity before it is converted into froth, e.g. the viscosity of cement slurry may be lowered by adding sodium hydroxide to cement slurry.  The drying of the slurry may be effected in apparatus of the type in which the slurry is spread on moving chains that pass through a space traversed by hot gases.
Patent GB-725097-A (GB)
Title: Improvements in or relating to cotton picker spindle assembly mountings
Inventor: HAGEN CLARENCE RICHARD
IPC: A01D46/16
Filed: 1953-08-18
Abstract: 725,097. Cotton-pickers. INTERNATIONALHARVESTER CO. Aug. 18, 1953, No. 22735/53 Class 6 (3). A cotton-picking assembly mounting comprises a bearing sleeve 34 carrying the shank 32 of the picker spindle 4 and fitting removably within a bore 26 in a support 2, the support having a transverse hole 44 partially intersecting the bore and the sleeve having a mating transverse tangential groove which permits the insertion of a resilient tubular pin 42 of C- shaped cross-section to retain the sleeve in the bore. The support is generally of aluminium and includes a vertical channel 6 housing a driving shaft 10 for all the spindles which carry bevel gears 38 on their inner ends to engage corresponding gears 16 on the shaft 10. A lubricating duct 24 extends down the side of the channel 6 adjacent to the bearings 34. The outer ends 30 of the picker-spindles are tapered and barbed. The mounting avoids the necessity of threaded holes in the aluminium support 2.
Patent GB-446894-A (GB)
Title: Improvements in or relating to alloys for permanent magnets
IPC: C21D1/78
Filed: 1934-08-04
Abstract: Permanent magnets are made by rapidly cooling from 1000-1350 DEG  C. and reheating to 600-800 DEG  C. alloys containing 5-20 per cent of aluminium, 5-45 of nickel and the balance iron with or without one or more added elements not adversely affecting the magnetic properties of the alloy to any material extent, in which alloys are incorporated up to 2 per cent of silicon or up to 5 per cent of titanium or both. The elements which may be added are cobalt up to 20 per cent, molybdenum up to 5, copper up to 15, manganese up to 5, tungsten up to 5 and vanadium up to 5, the total proportion of such elements not exceeding 30 per cent.  In an example, alloys containing 32 per cent of nickel, 12 of aluminium and 0.5 of silicon was quenched from 1000 DEG  C. and reheated to 750 DEG  C. and another containing 32 of nickel, 12 of aluminium and 2 of titanium was similarly treated.
Patent GB-409549-A (GB)
Title: Process for the manufacture of durable pastes from the endosperms of the seeds of the carob tree and related plants
IPC: C08K3/34
Filed: 1933-08-15
Abstract: Durable pastes and mucilages, which may be employed as adhesives or in the textile industry as sizing, finishing and sliding agents, are manufactured from the seeds of Ceratonia siliqua and related plants, e.g. those of the families Caesalpinareal and Mimosareal, such as Gleditoclica triacantos or Cercis and Cassia genera, by adding hydrofluosilicic acid or its salts, e.g. the sodium, potassium, ammonium, magnesium or zinc salt or mixtures thereof, in the solid form or in the form of a solution or of a mist, preferably in quantities of 0.1-2 parts per thousand with reference to the solution ready for use, to the decorticated and, if desired, pulverized seeds, or to the endosperm flour or to the extracts obtained therefrom, or to the dilute solutions of the extracted gum substances ready for use, or to the reversible dried products made from the extracts, or by employing aqueous solutions of hydrofluosilicic acid or its salts for the extraction of the seed kernels or the isolated endosperm substance.  The process may be combined with other known preserving processes.  In examples: (1) finely pulverized sodium fluosilicate is added to the endosperm flour of Ceratonia siliqua, the product being dissolved in water for use; (2) the endosperm flour is treated with an aqueous solution of sodium fluosilicate; (3) as in (1) but using a larger quantity of sodium fluosilicate; (4) as in (2) but using a more concentrated solution of sodium fluosilicate; (5) as in (2) but with the addition of formaldehyde to the sodium fluosilicate solution.
Patent GB-1107822-A (GB)
Title: Detecting device for use in fabric straightening apparatus
IPC: G01N21/55
Filed: 1965-05-31
Abstract: 1,107,822. Photo-electric fabric inspection. H. EICKEN. May 31, 1965 [June 8, 1964], No. 23184/65. Heading G1A. [Also in Division D1] In fabric straightening apparatus in which weft irregularities are detected by investigating the distribution of light reflected from the fabric using photo-cells, a glass screen is disposed between the fabric and the cells to minimize the effect of light variations due to fluttering of the fabric. Light from a source 9, Fig. 2, is directed through a glass screen 4, Fig. 1, on to the fabric. Light is reflected from the fabric on to the screen and the patch of light produced is viewed by photoresistors 10, 11 arranged symmetrically with respect to the direction of illumination. The photo-resistors are connected in a bridge circuit which is balanced so long as the weft is straight but unbalanced if it is at an angle. Unbalance of the bridge is used to control a mechanical web straightener. A further cell may be provided to receive light reflected directly in the line of illumination and its output used to compensate the outputs of the cells 10, 11 for any residual undesired variations of light intensity. A plurality of detector heads may be provided across the fabric web to determine whether the weft is bowed or skewed.
Patent GB-857243-A (GB)
Title: Pharmaceutical compositions
Inventor: KARALL ALEXANDER
Filed: 1957-07-22
Abstract: A composition for the care and protection of the skin contains a pentose such as arabinose, xylose or ribose and an amino acid such as arginine, lysine, alanine, glycine, or histidine, the weight ratio of pentose to amino acid being up to 5:1 and preferably equimolecular. The composition may be in the form of a solution or a dry mixture and may contain esters of p. hydroxybenzoate, methyl cellulose, carboxymethyl-cellulose, tragacanth.