baber/WOPTO huggingface dataset:
Patent GB-910221-A (GB)
Title: 18-oxygenated steroids and process for their synthesis
IPC: C07J75/00
Filed: 1958-12-05
Abstract: The invention comprises compounds of the formula:-  <FORM:0910221/IV (b)/1> (in which R represents a ketalised oxo group R1 represents a hydrogen atom or an acyl group, X represents an etherified hydroxyl group and Y represents the group <FORM:0910221/IV (b)/2> or = O, which compounds may further contain a double bond in the 16 : 17-position), together with a process for the preparation of an 18-substituted-20-oxo-21-hydroxy pregnane compound or a derivative thereof, wherein a 20-oxo-pregnan-21-oic acid which may be unsaturated in the 16: 17-position, or a derivative thereof, of formula:-  <FORM:0910221/IV (b)/3> in which R is a ketalised oxo group, R1 is a hydrogen atom or an alkyl group, and X is -C(CH3)=CH- or -CHY-, Y representing an etherified hydroxyl group, is reduced by means of lithium aluminium hydride to form a 20,21-dihydroxy-pregnane, which is then converted into a 20-oxo-21-hydroxy-pregnane or an ester thereof by a method known per se, and at any stage, any 16 : 17-double bond is hydrogenated and if desired, any protected oxo groups in the 3- or in the 3- and 18-positions are liberated.  The conversion of the 20,21-diol to the 20,21-ketol is preferably effected either by reaction with 1.0-1.2 molecular equivalents of a reactive derivative of a carboxylic acid in the presence of an acid acceptor, followed by chromic acid oxidation of the resulting 21-ester in pyridine solution, or by degradation with periodic acid, oxidation of the 17-formyl compound with KMnO4 in pyridine followed by conventional synthesis of the ketol side chain from the acetic-acid obtained.  Detailed examples illustrate the invention, which constitutes a part of a synthesis of aldosterone.  Specifications 793,850 and 909,263 are referred to.
Patent GB-868665-A (GB)
Title: Improvements in methods of and apparatus for measuring density or mass per unit area
Inventor: ALCOCK NORMAN ZINKAN
IPC: G01N23/16
Filed: 1958-12-08
Abstract: 868,665. Radiation densitometers. CANADIAN CURTISS & WRIGHT Ltd. Dec. 8, 1958, No. 39417/58. Class 40(3) In a densitometer of the kind where two detectors are energized by respective radiation sources and the material under test is interposed in one beam, the inner electrodes 16 of the detectors are connected together and the outer electrodes 14, 15 are supplied with equal potentials of opposite polarities relative to earth; the potential of the inner electrode is zero when the detectors are energized equally but will rise when the test material is in position; this signal is fed to a motor M which adjusts an aperture 28 in front of the second source until the signal falls to zero, and simultaneously moves the slider of a potentiometer 31 to pass a corresponding signal to a utilization device 37 or to a meter 39 depending on the position of the switch 35; the meter is biased from a source 42 so that it reads zero with no test material in position and thus acts as a check on the accuracy of the system. If during subsequent use of the apparatus the meter is found to give a finite reading under these conditions a suitable correction is made to the results.
Patent GB-924659-A (GB)
Title: Improvements in or relating to method for treating finely divided iron ores and briquettes produced thereby
IPC: C21B13/14
Filed: 1959-11-20
Abstract: <PICT:0924659/III/1> Briquettes or agglomerates are prepared from iron bearing compounds containing oxides, hydrated oxides or carbonates of iron, ground to 2 U.S. mesh or finer by heating and partially reducing the compounds with a reluctant to form a product containing FeO or Fe3O4 and O to 10% metallic iron and compacting the product without a binder at 700-1500 DEG F under 10,000 p.s.i. pressure.  Reduction may be effected by gases such as hydrogen, carbon monoxide or mixtures thereof, or by starch, sugar or an iron-bearing powder.  3-5% of caO or 4% calcium carbonate may be added before briquetting, and briquetting may also be effected with mixtures of the reduced ore and natural haematite. As shown in the drawing, raw ore is fed to a jacketed reduction reactor 2 cocurrent with reducing gas and the product separated in 3, the finer passing with the reducing gas to a separator 4 from which they are fed cocurrent with a reducing gas to a jacketed reduction reactor 5. Solids are separated at 6 and, with solids from 3, pass via a gangue separator 7 to a briquetting machine 9 where the required heat and pressure are applied.  The briquettes may be fed to a reduction reactor 13 where they may be reduced to metal or iron carbide by a reducing gas which subsequently passes successively through reactor 5, separator 6 to enter reactor 2 through line 19.  The spent reducing gas leaving separator 3 via separator 4 is fed with air to the jacket of reactor 5 and thence through line 26 with further air to the jacket of reactor 2.  The product from reduction reactor 13 may be fed to a smelting furnace 14.  The product from separator 3 may be fed, already at the required reduction temperature of 700-1500 DEG F, to the briquetting machine 9 without the further-reduced fires from the second reduction reactor 5.  The briquettes produced have a density of at least 3 grams/u. and may contain at least 25% of partially reduced material in the form of FeO or Fe3O4.
Patent GB-953968-A (GB)
Title: Captive screw arrangement
IPC: F16B41/00
Filed: 1962-10-19
Abstract: 953,968. Securing screws against accidental loss. STANDARD TELEPHONES & CABLES Ltd. (Standard Elektrik Lorenz A.G.). Oct. 19, 1962, No. 39654/62. Heading F2H. A screw 5 is held captive in a plate 1 by flattening a bent-out tongue 3 into the plate plane in an aperture 4, after inserting the screw into the aperture and passing its reduced neck 6 into a bight 2 of the aperture. In the bight 2 when it is closed by the tongue 3, the screw 5 may have no clearance for movement, clearance in all directions or clearance only for movement vertically. The plate 1 may have a bight 2 at each side, Fig. 3 (not shown), so that the major portion of symmetrical attachment to the plate can be mounted to the right or left of a horizontal screw and therefore in the same vertical line whether mounted above or below the screw.
Patent GB-920874-A (GB)
Title: Improvements in or relating to the degasification of molten steel
IPC: C21C7/10
Filed: 1959-11-24
Abstract: 920,874. Degasifying steel. W. C. HERAEUS G.m.b.H., and RUHRSTAHL A.G. Nov. 24, 1959 [Nov. 25, 1958], No. 39804/59. Class 72. In a method for degasifying molten steel in which gases are given off therefrom into an evacuated chamber 1 as shown, the molten steel being conveyed into the chamber 1 through a tube 3 by the aid of an introduced gas, and returning through a tube into the melt 5, the gas is introduced into the tube 3 in at least two positions at different levels. The introduction of the gas is regulated to give an ascending speed of the molten steel and gas bubbles whereby the gases in the steel have sufficient time to diffuse into the bubbles. The tube 3 may have a larger cross-section at its upper part than its lower part. Gases are introduced into the tube 3 by cooled nozzles which are let into water-cooled flanges of pipe attachments 9, 10 and 11 leading to annular devices 6, 7 and 8. A plate 12 deflects any metal (shown by dotted lines) carried up with the gas. Reference has been directed by the Comptroller to Specification 837,587.
Patent GB-1339807-A (GB)
Title: Method for the minimization of the effects of pulsations in intermittent pumping systems
IPC: G01N35/08
Filed: 1971-08-25
Abstract: 1339807 Mixing liquids; automatic analysis TECHNICON INSTRUMENTS CORP 25 Aug 1971 [14 Sept 1970] 39960/71 Headings B1C and B1X [Also in Division B8] In apparatus primarily for the colorimetric analysis of blood serum samples, a peristaltic pump 10 is associated with a sampling dip tube 20, an indexing turntable carrying sample containers 16, and a wash liquid container 24, which produce a flow of segments of sample liquid S and wash liquid W separated by air segment A. The pulsations caused by occlusion of the pump tube 36 by the roller 50B will travel along the tube to cause irregularity at the dip tube inlet. This may be arranged to occur at the stage when it causes least disturbance (which is during the intake of the sample which is large in comparison with the wash liquid and air segments) by arranging the flow path to be of suitable length or, as described, by suitable synchronisation of the pump with the dip tube movements. The sample segments are arranged to arrive at the junction 90 simultaneously with reagent segments from the tube 88. The pulsations caused by the roller 50A ceasing to occlude the pump tube are arranged to arrive at the junction 90 simultaneously with an air segment by suitably adjusting the length of the flow path. This minimises change in the sample/reagent proportions or at least restricts any change to the beginning or end part of the sample portion where it is least likely to affect accuracy of colorimetry.
Patent GB-1269303-A (GB)
Title: Magnetic record medium
IPC: G11B5/73
Filed: 1970-08-21
Abstract: 1,269,303. Magnetic laminate. NATIONAL CASH REGISTER CO. 21 Aug., 1970 [15 Sept., 1969], No. 40402/70. Heading B5N. [Also in Divisions B6 and H1] A magnetic record medium comprises a polymeric film which carries a layer of magnetic recording material substantially composed of metal compounds on one surface and the other surface is adhered to a sheet of substrate material by an adhesive consisting of a mixture of epoxy resin and nitrile polymer. A copolymer of 1,3-butadiene and acrylonitrile is specified as the nitrile polymer. Specified polymeric films are polyethylene terephthalate, cellulose acetate, cellulose acetate-butyrate, polymethyl- and polyethyl-acrylate and polymethylmethacrylate carrying a layer of iron oxide particles. The substrate may be of a polymeric film or preferably paper. In a preferred embodiment a strip  of the polymeric film is located in a groove or depression in the surface of the substrate.
Patent GB-1236826-A (GB)
Title: Method and apparatus for removing seawater from sand
Inventor: KONING JAN DE
IPC: E02F7/04
Filed: 1968-08-23
Abstract: 1,236,826. Washing sand. INGENIEURSBUREAU N.V. 23 Aug., 1968 [29 Aug., 1967], No. 40507/68. Heading B1Q. [Also in Division E1] In a method of removing sea water from sand a suspension of sand in sea water is passed through a pipeline 26 into a container 28 where some of the sea water together with some sand is allowed to overflow from the container at 18 for return to the sea whilst the rest of the sea water is at 30f drained out of the sand left in the container for discharge into the sea and the drained sand is conveyed away from the container through a second pipeline 42 in a current of fresh water. Preferably sand dredged out at sea is brought by hoppers to the vicinity of an embankment for dumping at the intake of the first pipeline. The container may be divided into compartments, which are filled and emptied in turn. The container may be located on land or on a barge on an inland waterway, where it may be anchored and the container connected to the second pipeline or where, when the container is full of sand, may voyage on the waterway to the place where the pipeline is located, the sand being then drained of sea water before the voyage commences or during the voyage, in which case the sea water is drained into a tank on the vessel. Freshwater can be sprayed onto the sand before it enters the second pipeline.
Patent GB-886090-A (GB)
Title: Thiourea compounds and process for their manufacture
Filed: 1959-11-30
Abstract: The invention comprises a 1,3-diphenyl-2-thiourea, in which one of the phenyl radicals contains in the p-position a group of the formula Py-[C(R)=CH]n-in which Py stands for a pyridyl group, R represents a hydrogen atom or an alkyl radical an n stands for the whole number 1 or 2, and the other phenyl radical contains in p-position an alkoxy group having 4 or 5 carbon atoms or an N,N-dialkylamino-alkoxy group and addition salts thereof with acids yielding physio-logically tolerable salts and a process for the preparation thereof wherein a compound of the formula <FORM:0886090/IV (b)/1> is reacted with a compound of the formula <FORM:0886090/IV (b)/2> wherein one of the residues X stands for an alkoxy group containing 4 or 5 carbon atoms or an N,N-dialkyl-amino-alkoxy group and the other for the group of the formula Py-[C(R)=CH]n in which Py, R and n have the meanings given above, and, if desired, converting a resulting salt into the free base or converting the free base into a salt thereof. Illustrative products of the invention are 1-(p-isopentyloxy-phenyl)-, 1-(p-isobutyloxy-phenyl)-, and 1-(p-n-butyloxy-phenyl) - 3[p - (b  - pyridyl) - 2 - ethenyl - phenyl] - 2 - thiourea, 1 - (p - isopentyloxy - phenyl) - and 1-(p-isobutyloxy-phenyl)-3-[p-(b -methyl-b -pyridyl-2-ethenyl) -phenyl]-2-thiourea.  4-[2-(2-pyridyl)-ethenyl]-aniline is obtained by reacting 4-nitro-benzaldehyde with a -picoline in the presence of acetic anhydride and hydrogenating.ALSO:A pharmaceutical preparation comprises a 1,3 - diphenyl - 2 - thiourea, in which one of the phenyl radicals contains in the p-position a group of the formula Py-[C(R) = CH]nin which Py stands for a pyridyl group, R represents a hydrogen atom or an alkyl group and n is 1 or 2, and the other phenyl radical contains in p-position an alkoxy group having 4 or 5 carbon atoms or an N,N-di-alkyl-amino-alkoxy group or an addition salt thereof with an acid yielding physiologically tolerable salts thereof, with a pharmaceutical carrier.  In addition other tuberculostatic agents e.g. streptomycin, dihydrostreptomycin, isonicotinic acid hydrazide, 4 - amino - salicylic acid and other thiourea derivatives may be present.  They are employed orally or parenterally in solids as tablets, dragees or capsules or in liquid form as solutions, emulsions or suspensions.  Specified salts are hydrochlorides, hydrobromides, sulphates, phosphates, acetates, hydroxyacetates, oxalates, maleates, tartrates, citrates, benzoates, salicylates, 4 - aminosalicylates and methane-sulphonates.
Patent GB-1137098-A (GB)
Title: An improved hair roller
Inventor: SCHALLER HERMAN
IPC: A45D2/24
Filed: 1966-09-12
Abstract: 1,137,098. Hair curlers. NOVORNA (LONDON) Ltd. 7 Dec., 1967 [12 Sept., 1966], No. 40740/66. Heading A4V. In a hair roller comprising a helical spring element supporting and covered by an outer open mesh cylinder and containing an inner member having radial prongs projecting through the mesh, the spring element 15 has its coils joined by one or two axially extending flexible members 17 which prevent compression of the roller, yet allow it to be bent about its long axis. The spring, which may be of plastics material moulded integrally with the flexible members, has radial lugs 18 for engaging with the mesh cylinder. The inner member may be a cylindrical brush formed by a wire centre member carrying a plurality of radial nylon bristles, or may be moulded in one piece in plastics material.
Patent GB-924560-A (GB)
Title: Means for stacking cards and the like
IPC: B42F17/08
Filed: 1960-11-28
Abstract: 924,560. Filing papers. J. HANDLEY. Nov. 24, 1961 [Nov. 28, 1960], No. 40756/60. Class 146 (1). Record cards 12, or plates of magnetic or non-magnetic record-bearing material, are stored in spaced relationship in an open-top rectangular container between linear cross members, such as cords 9, 10 and 11, which are spaced apart to allow the cards to be filed upright therebetween. The container has a number of slots 6, 7 and 8 in the top and bottom edges of its side walls 2, 3, and diagonal cords 9 and 10 are engaged in the slots, as shown. In addition, a cord 11 is threaded in the top slots 6, so that the cords provide pockets to receive the cards 12. In a modification, only the top cord 11 is used, and the inner faces of the walls 2, 3 of the container are provided with vertical slots to accommodate the ends of the cards 12. The cords 9, 10, 11 may be clamped at regular intervals along the side walls 2, 3, so that the whole of the container need not be re-threaded when a cord breaks, by screw clamps arranged along the top edges of the side walls. The cords may be of metal or synthetic plastic material, or a combination thereof.
Patent GB-1190603-A (GB)
Title: Improvements in or relating to Core Element Handling Systems for Nuclear Reactors.
IPC: G21C19/06
Filed: 1967-09-07
Abstract: 1,190,603. Grabs for engaging and lifting nuclear fuel elements. GULF GENERAL ATOMIC Inc. 7 Sept., 1967 [27 Sept., 1966], No. 40864/67. Heading B8H. [Also in Division G6] A grapple 35 for handling core blocks 12 in a nucleus reactor (see Divisions G4-G6, Heading G6C) comprises a spine 183 having a probe 184 which enters a hole 178 in the block when the grapple is lowered by a hoist. Grapple fingers 199 extending from the tubular portion 198 of a cylinder 187 are urged outwardly by a conical shoulder 203 on the spine 183 when the latter is in its lowermost position so that shoulders 201 on the fingers engage an annular shoulder 181 in the hole 178. The upper section 186 of the spine carries a piston 192 biased by springs 193 and the spine may be moved upwards by admitting gas to the cylinder 187 to raise the piston. As the probe 184 rises its inner surface engages the tips 202 of the fingers 199 to draw the fingers inwardly so that the shoulders 201 leave the shoulder 181 and the grapple may be withdrawn from the block 12. Sensors 226, 231 produce an error signal when the spine 183 is not aligned with the hole 178. Axial movement of the spine relative to the cylinder 187 is sensed by switches 234, 236. A pad 243 biased by springs 246 yields if the spine 183 is inserted too far into the block and further overtravel may be prevented by a cut-out switch 250 controlling the hoist.
Patent GB-1064939-A (GB)
Title: Reforming catalysts
IPC: B01J23/755
Filed: 1964-10-08
Abstract: Hydrogen-rich gases are made by passing steam and gaseous and/or liquid paraffinic hydrocarbons at a steam to carbon ration of from 2 to 5 over a catalyst comprising 3 to 35% NiO on a mixture of MgO and MgSiO3 comprising 30 to 70% of MgO and 10-35% combined SiO2. Examples are given of the reforming of natural gas, naphtha and refinery butane. Details are given of the composition and calorific values of gases.ALSO:A reforming catalyst comprises 3-35% NiO or a mixture of MgO and MgSiO3.  Additionally the catalyst may contain a binder e.g. Na2SiO3 or a hydraulic cement.  The MgSiO3 may be natural or synthetic.  Examples of natural silicates are talc, serpentine and sepiolite.  Before use the catalyst may be reduced in hydrogen.
Patent GB-960304-A (GB)
Title: Sacrificial zinc anode
IPC: C23F13/14
Filed: 1962-11-01
Abstract: A sacrificial anode, for protecting metal tanks, ships' hulls or like vessels against corroson, comprises a zinc anode body 10 bonded to a zinc alloy core 11 cathodic to and embedded in the zinc body and preferably exposed (as shown at 12) along the length of one surface of the anode.  The alloy core consists of 0.03 to 4% by weight of one or more of Fe, Ni and Co, balance Zn; special high grade zinc consisting of 0.1 to 0.5% Al, 0.03 to 0.1% Cd, balance Zn, may be used for the <PICT:0960304/C6-C7/1> anode body.  The body may be bonded to the core by casting zinc metal around the core. The resulting composite billet may then be extruded preferably through a two hole die. Specifications 872,628 and 881,206 are referred to.
Patent GB-1527503-A (GB)
Title: Multi standard reprographic camera
IPC: G03B27/32
Filed: 1975-10-08
Abstract: 1527503 Copying cameras H A H SPENCE-BATE 8 Oct 1975 [8 Oct 1974 9 Dec 1974 14 March 1975] 41339/75 Heading G2A A copying camera comprises a copying table, a camera head including a film transport device and a lens movable for focusing, and a mask assembly consisting of two pairs of parallel side members enclosing a central area, the said side members being adjustable so as to vary the size of image recorded. As shown in Fig. 1, the head 9 contains the film, the mask, and rotatable turret 7 carrying a number of lenses. The turret is seen more clearly in Fig. 4, and can be rotated so as to bring any of the lenses 30, 31, 32, 33 into the operative position, co-operating with the shutter 35. Instead of being on a rotatable turret the lenses may be in line, on a sliding member Fig. 3 (not shown). The turret or slide can move, as a whole, towards or away from the film plane, as at 38, for focus and magnification adjustment. The document to be copied is held on a table 10, and the light path from document to film is reflected by a mirror 5, allowing a more compact arrangement. The mask is seen in more detail in Fig. 5. A pair of masking blades 40, 41 carried by a suitably threaded spindle 44 can be driven towards or away from each other by a motor 46. A similar pair of blades 42, 43, at right angles to the first pair, are controlled by a motor 47. Thus the exposure area 48 can be varied in size. Fig. 6 (not shown) is an alternative arrangement of the masking blades. The various adjustments thus allow a large number of different formats to be available, and images of several different formats may be combined on a single micro-fiche frame, as in Figs. (not shown) 7-10. When a particularly large drawing is to be copied, it may be photographed in sections by a step-and-repeat technique, as in Fig. 13 (not shown). In the arrangement of Fig. 14, light from a source 105 passes through condenser lenses 108, 109, a variable mask 111 and an auxiliary lens 106 to be reflected by a mirror 114 on to the copying table 103. This enables an image of the format in use to be projected on to table 103 so that the document to be copied can readily be located in the correct position. The mirror is then pivoted out of the optical axis 102 and the document photographed by the camera  lens 101.
Patent GB-889323-A (GB)
Title: Splitting machine for leather, rubber or the like
IPC: B26D3/28
Filed: 1960-12-01
Abstract: 889,323. Splitting-machines. MASCHINENFABRIK TURNER A.G. Dec. 1, 1960 [Jan. 14, 1960], No. 41343/60. Class 31 (1). In a splitting-machine in which work is fed between a gauging roller a and a spreader cylinder c to a band knife b, bowing of the roller a under the effect of its weight is prevented by means of at least one magnet m which is fastened to the machine frame r so as to leave a small air gap between the surfaces of the magnet poles m 1 , m 2  and the surface of the roller a. The magnet is releasably supported on the frame r by means of an axially adjustable brass spindle h provided with a nut n, and a rectangular plate p secured to the magnet is slidably guided in a correspondingly shaped cavity in the frame r. The magnet may be a permanent magnet and be composed of a permanently magnetizable metal alloy or of a non-metallic ceramic magnetizable material; alternatively, the magnet may be in the form of an electromagnet.