baber/WOPTO huggingface dataset:
Patent GB-1337344-A (GB)
Title: Method and apparatus for measuring the clumping of platelets in whole blood
IPC: G01N21/07
Filed: 1971-10-29
Abstract: 1337344 Photo-electric testing N CLARKE 29 Oct 1971 [29 Oct 1970] 50660/71 Heading G1A [Also in Division B1] Clumping of platelets in blood is measured by comparing reference and test measurements of radiation affected by the presence of platelets in a plasma through which it is passed, the reference being obtained after centrifuging and the measurement after agitation the degree of which is reproducible for successive samples, and centrifuging. The sample is investigated in chamber 1 Fig.1 by radiation source and detector 12, 13, the radial position of which is adjustable. The chamber is rotated at a selected centrifuge speed by a motor 4 and a clutch 8 and the re-  producible agitation is performed by alternate operation of drive clutch 8 and brake clutch 9 under the control of an electronic circuit 11 in which cycles from a clock oscillator are counted to control the periods. The chamber is made readily detachable from shaft 2 in an alternative embodiment two chambers are provided for sub samples from which the two readings are derived. This latter arrangement uses a single radiation source and a common motor. The Specification includes description in which both readings are derived from a single sample in which, following centrifuging after which a reference is measured, all platelets are clumped by agitation prior to further centrifuging. The process is described with reference to Figs. 6, 7, 8 (not shown). The electronic control circuit is described with reference to Fig.4, (not shown).
Patent GB-1290028-A (GB)
Title: Separation of diastereoisomers
IPC: C07F9/655
Filed: 1970-10-26
Abstract: 1290028 Separating diastereoisomers MERCK & CO Inc 26 Oct 1970 [30 Oct 1969] 50696/70 Heading C2P One or more diastereoisomeric salts is or are separated by fractional crystallization from a solution containing a mixture of the four diastereoisomeric salts obtained from a mixture of the ( + ) and ( - ) enantiomers of an optically active acid and the ( + ) and ( - ) enantiomers of an optically active base. The acid may be (cis- 1,2-epoxypropyl) phosphonic acid, the base may be alpha-phenethylamine and two diastereoisomeric salts are preferably separated sequentially. The process may be carried out continuously, and the crystallization of each salt may be carried out in the presence of seed crystals of that salt. The mixture of diastereoisomers may be obtained by reacting the acid and base enantiomer mixtures directly, or by epoxidizing a mixture of the ( + ) and ( -) alpha-phenethylamine salts of cis-propenyl phosphonic acid. ( + ) - Alpha - phenethylammonium - ( - ) - (cis- 1,2 - epoxypropyl) phosphonate may be reacted with an alkali metal or alkaline earth metal hydroxide to obtain a dialkali metal or alkaline earth metal salt.
Patent GB-1358135-A (GB)
Title: Rotary positive-displacement fuel-pumping apparatus
IPC: F04D13/06
Filed: 1972-11-03
Abstract: 1358135 Cooling electric motors A PIERBURG AUTOGERATEBAU KG 3 Nov 1972 [10 March 1972] 50873/72 Heading H2A [Also in Division F1] In fuel-pumping apparatus the rotor 23 of a sliding-vane pump is driven by an electric motor through which a proportion of the fuel flowing to a delivery connection 62 is returned to the pump so as to cool its commutator 12, rotor 13, bearings 15, 19 and stator 43. The fuel is sucked through a port 73 in a cheek plate 25 and ejected by way of a port 28 in another cheek plate 26, an annular channel 49, radial passages 50 (only one shown), an annular channel 51 between jackets 45, 47, and an annular channel 59 in a bearing-support " plate " 16. The returning fuel passes through orifices 63, 64, 70, slots 71, passages 66, 67, 68 and a gap 69 between the rotor 23 and plate 26. Excess pressure in the channel 51 is relieved by a spring- loaded diaphragm 35 co-operating with a tube 37, which communicates with the port 73 through an annular channel 33.
Patent GB-1379916-A (GB)
Title: Trackways for conveyor systems
IPC: B65G21/22
Filed: 1971-11-04
Abstract: 1379916 Trackway for conveyer system HYTRAC CONVEYORS Ltd 2 Feb 1973 [4 Nov 1971] 51237/71 Heading B7L [Also in Division B8] A trackway for supporting a conveyer chain 1 comprises a pair of spaced side members each composed of a plurality of track sections 9 connected end to end by joint plates 13 bolted to adjoining sections, opposing sections 9 being held at the required spacing by a plurality of bridge plates 20 bolted to the sections, and the track sections 9 define opposing channels 1À0 to receive wheels on the chain and have top and bottom horizontal flanges 12 provided with bolt holes 14 for connection with the joint plates 13. Conveniently the bridge plates 20 are also positioned at the junctions between adjoining track sections and two bridge plates 20 may be bolted face to face. The chain 1 is driven by dogs 8 and comprises links 3, whereof the wheels of successive links are mutually at right angles, and pendants 7 for supporting a load. Alternatively the chain may carry drive dogs for propelling load-carrying trolleys on a separate trackway of similar construction.
Patent GB-1414190-A (GB)
Title: Disintegrating bullet and a method of its manufacture
IPC: B22F9/04
Filed: 1972-11-07
Abstract: 1414190 Disintegrating bullets NEDERLANDSCHE WAPENEN MUNITIEFABRIK DE KRUITHOORN NV and MANNESMANN AG 7 Nov 1972 [1 Dec 1971] 51250/72 Heading F3A [Also in Division B3] A disintegrating bullet comprises powder produced by pulverizing an unalloyed steel melt having a low carbon content by water under pressure, annealing the powder at 900- 1050 C. in a reducing atmosphere, heating and grinding the powder and sieving to obtain a particle size of 0À2-1 mm., and compacting the powder to form a bullet. The melt is at 1650 C. and the water pressure is 30 atmospheres resulting in a powder having a particle size of 0À4-1 mm. Prior to annealing, the powder is drained and dried in a cracked gas atmosphere at 1000 C. After passing through a conventional hammer mill and sifting the density of the powder is 3À7-3À9 g/cm<SP>3</SP>. For a density of at least 7 g/cm<SP>3</SP> for the bullet, a pressure of 6-8 t/cm<SP>3</SP> is required and 0À5% zinc stearate may be added to the powder to facilitate pressing.
Patent GB-1286739-A (GB)
Title: Preparation of thiolhydroxamate carbamates
Filed: 1970-10-29
Abstract: 1286739 Thiohydroxamate carbamaies E I DU PONT DE NEMOURS & CO 29 Oct 1970 [30 Oct 1969] 51536/70 Heading C2C Thiolhydroxamate carbamates of the formula wherein R 1  is a methyl, ethyl, (methylthio)- methyl or methoxy methyl group and R 2  is a methyl, ethyl or propyl group, are obtained by reacting isocyanic acid with thiolhydroxamate esters (HO-N=CR 1 -S-R 2 ), at -15 to 80 C. and at a pH of 1.5 to 5, the reaction being conducted in a medium comprising at least 50% by weight of water and up to 50% by weight of an inert organic liquid.
Patent GB-1167508-A (GB)
Title: Combined Gas Turbine and Vaporised Fluid Turbine Electricity Generating Plant
Inventor: HUGHES ERIC
IPC: F01K23/10
Filed: 1966-11-18
Abstract: 1,167,508. Power plant. ROLLS-ROYCE Ltd. Nov. 20, 1967 [Nov. 18, 1966], No. 51667/66. Heading F1Q. In an electricity generating plant of the kind in which an electrical generator 1 is arranged to be driven by a gas turbine 4, 5 and a vaporized fluid turbine 3, each arranged to be supplied separately with its respective working fluid, the gas turbine, the vaporized fluid turbine and the electrical generator are mounted on a supporting floor-like structure with their rotatable parts having a common axis of rotation substantially parallel to the structure above vapour generating means for supplying vaporized working fluid to the vaporized fluid turbine and a condenser 9 for receiving expanded working fluid from the vaporized fluid turbine coaxially of the shaft 2 and coupled thereto there are two power turbines 4, 5 arranged one at each end of an alternator 1 and each connected to receive hot gases from a pair of gas turbine engines 6. The exhaust gases from both power turbines in passing through the heat exchanger 8 cause vaporization of working fluid for the vaporized fluid turbine 3. Air is admitted to each pair of gas turbine engines 6 through ducts 20. The heat exchanger 8, the vaporized fluid turbine 3, the condenser 9 and the pump 10 are connected in a closed circuit. A separate heat exchanger may be provided beneath each power turbine. The working fluid for the turbine 3 may be dichlorofluoromethane.
Patent GB-1458392-A (GB)
Title: Optically-active 1-aryloxy-2,3-epoxypropane derivatives
IPC: C07C67/00
Filed: 1973-11-09
Abstract: 1458392 Optically active 1-aryloxy-2,3- epoxypropane derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 28 Oct 1974 [9 Nov 1973] 52077/73 Heading C2C The invention comprises an optically active epoxide having the (S)-absolute configuration and having the formula where R<SP>1</SP> is an aryl radical which does not contain a nitrogen atom as part of the aromatic nucleus, and which may bear one or more substituents. R<SP>1</SP> may for example be phenyl, a polycyclic aromatic radical wherein the ring to which the side chain is attached is a benzene ring, or a monocyclic heterocyclic radical; a wide variety of possible substituents for these rings is listed. The optically active epoxide may be made by treating with a base an optically active compound having the (R) configuration of the formula where Z is a displaceable radical, for example a halogen atom or an alkanesulphonyloxy or arenesulphonyloxy radical; the base may be an alcoholic or aqueous alcoholic solution of an alkali metal hydroxide. The preparations of a number of optically active compounds of formula are described. By reacting the epoxide of the invention with an amine R<SP>4</SP>NH 2 , where R<SP>4</SP> is an alkyl, hydroxyalkyl or cycloalkyl radical, an alkanolamine R<SP>1</SP>OCH 2 .CHOH.CH 2 NHR<SP>4</SP> having the (S)-absolute configuration is obtained; such alkanolamines have #-adrenergic blocking activity.
Patent GB-1073037-A (GB)
Title: Method and apparatus for duplicating text, pictures and the like on unprepared copy receiving sheets
IPC: B41L19/00
Filed: 1965-12-09
Abstract: 1,073,037. Copying documents; printing processes. CARL LAMM A.B. Dec. 9, 1965 [Dec. 11, 1964], No. 52317/65. Heading B6C. In a rotary document copying apparatus for reproducing an " original " carried by a glasswalled cylinder 1 on unprepared copy sheets 17 the " original " is wrapped around the cylinder with its indicia bearing surface contacting the glass. Stationary infra-red heater tubes 2 located within the cylinder are used to radiate heat outwardly through the glass wall causing the dyestuff carried by an endless belt 12, which is pressed against the rear surface of the " original " by a soft rubber roller 11, to melt and adhere to the rear surface of the original in those places corresponding to indicia on the other side. The transferred dyestuff is cooled by air jets at a position between the two heater tubes 2. The endless belt 12 then passes through a regenerating plant in which it is recoated with dyestuff from a bath 31. Meanwhile the " original " bearing the transferred dyestuff is contacted by a sheet 17 of copy material a rubber coated spring-loaded roller 18 pressing the sheet and the " original " together to ensure the transfer of the dyestuff from the rear surface of the " original " on to the copy material. Plates 47 are provided to strip the image bearing copy sheet from the " original," the sheet being carried to a receiving tray 40 by endless belts 41. Shields are provided within the cylinder such that the heater tubes may be switched " on " before the " original " is in a position to pass beneath the roller 11 and to enable selective " line " copying to be carried out. In certain copying procedures only the heater tube opposite the roller 11 is provided. In such a case the cooling air jets are dispensed with.
Patent GB-1322914-A (GB)
Title: Manufacture of high-bulked polyacrylonitrile yarn
IPC: D06P1/651
Filed: 1970-11-04
Abstract: 1322914 Dyeing polyacrylonitrile HACOBA-TEXTILMASCHINEN GmbH & CO KG 4 Nov 1970 [21 Nov 1969] 7 Feb 1970 (2)] 52483/70 Heading D1B High-bulk polyacrylonitrile yarn is dyed at temperatures below the glass transition point by means of an acidic liquor containing a cationic dye and a compound which swells and/or dissolves the fibres without completely dissolving them, the excess dye liquor then being removed and the yarn is subjected to a damp heat treatment at a temperature of not less than 98C. The treatment with the acidic liquor is preferably not more than 70C for wet-spun fibres and not more than 80C for dry spun fibres. Preferred swelling agents are ethylene- and propylene carbonates, propionitrile, benzyl-oxypropionitrile, acetonitrile, phenylacetonitrile.
Patent GB-1178587-A (GB)
Title: Improvements in or relating to Devices Incorporating Elongatable Sealed Member-Containing Devices
IPC: G01L7/00
Filed: 1967-11-20
Abstract: 1,178,587. Measuring temperature: pressure gauges: gas meters. PINTSCH BAMAG A.G. Nov.20, 1967 [Dec.23, 1966], No.52740/67. Headings G1D; G1L and G1R. Apparatus for measuring the pressure and temperature of a gas flowing in a conduit 14 for compensation of a gas volume measured by a gas meter comprises a gas-filled sealed bellows 1, with an end plate 6 which moves in accordance with changes in pressure and temperature, the bellows being contained in a housing 3 filled with a liquid 2 which assumes the temperature of the gas in the conduit 14 and is subject to its pressure by way of a duct 3a, the movements of the plate 6 being limited by flanges 4, 5 in the housing 3, the flange having sealing means 4a, 5a so that at the end positions of the movement of the plate 6 a volumne of the liquid 2 is sealed off in the housing 3, further changes being accomodated by expansion or contraction of a gas-filled bellows 8 in a chamber 12 connected to the housing 3 by a duct 3b to prevent damage to the bellows 1. The bellows 8 may be replaced by a spring or weight loaded diaphragm or by a weight loaded piston, and the movement of the plate 6 are coupled mechanically to an indicator (not shown). An alternative embodiment is described in which the chamber 12 containing the bellows 8 is disposed inside the bellows 1.
Patent GB-1159979-A (GB)
Title: Improvements in and relating to Methods of Electrically Connecting Objects
IPC: H05K3/34
Filed: 1966-11-25
Abstract: 1,159,979. Soldering. INTERNATIONAL BUSINESS MACHINES CORP. 25 Nov., 1966 [13 Dec., 1965], No. 52773/66. Heading B3R. [Also in Division H1] In connecting a microminiature chip having a contact formed thereon to a dielectric support having a conductive pattern on its surface the contact is placed against the pattern, the contact is heated to such a temperature, and for such a time, to melt the contact material so that the molten material wets but does not flow from a limited area of the pattern and the contact is cooled, so that the chip is spaced from the support with the contact joined to the limited area, the contact whilst molten supporting the chip due to surface tension. A ceramic, glass or plastic substrate 11 has a circuit pattern 12 formed thereon by printing &c. and dimples 16 may be provided to receive microminiature chip devices. A chip 15 e.g. a transistor has an aluminium land 18 deposited on each semi-conductor region to provide an ohmic contact and a layer of glass 19 is deposited over the chip. Holes 20 are etched in the glass and layers of chromium 21, copper 22 and gold 23 are vacuum deposited to provide contact with the aluminium 18. Then a solder contact 24 is vacuum deposited on the gold layer and the chip is then fired to form a hemispherical solder mound with the copper and gold layers being absorbed into the solder. The substrate is cleaned and the pattern fluxed to provide a sticky surface to which the chip can adhere, and the chips are inverted and placed on the dimples 16. Firing in a non- reducing furnace is effected to melt the solder which partially deforms and cooling solidifies the solder with the substrate 11 spaced from the chip 15. The pattern may be of copper, electrolessly plated copper, beryllium copper, rhodium plated copper, nickel plated copper, nickel-copper-iron alloy, electrolessly nickel plated gold, gold-palladium and gold-platinum and the solder may be binary alloys of lead and tin, indium, lead, gallium, gold, silver, antimony and alloys thereof. In an example a copper clad silicon glass substrate is photo etched to provide a copper pattern, a water white rosin fluid is brushed on the pattern, chip devices with 97.5% lead 2.5% tin hemispherical contacts are placed on the pattern and heated to 340‹ C. In another example a gold-platinum paste is applied by silk screening to an alumina dielectric substrate and fired to form the conductive pattern which is plated with nickel electrolytically or electrolessly. Water white rosin fluid is brushed on the pattern and chips with hemispherical 97.5% lead 2.5% tin solder contacts are inverted on the pattern and heated and cooled. An evaporated layer of gold may be deposited on the contact before joining.
Patent GB-1529820-A (GB)
Title: Digital display method and apparatus
IPC: G01R13/02
Filed: 1975-12-24
Abstract: 1529820 Digital meter HOFMANN GmbH & CO KG MASCHINENFABRIK GEBR 24 Dec 1975 [3 Jan 1975] 52826/75 Heading H3H [Also in Division G4] To prevent display fluctuations in digital display apparatus the electric signal to be displayed is passed simultaneously into two channels, one of which has a higher settling time to reach a steady state after a change of input than the other, the channel outputs are compared and a difference leads to adjustment at an increased rate of the higher settling time channel output which is used for the digital display. In the embodiment an analogue signal is fed to two low pass filters 5, 7, 6, 8 and 10, 11, the upper filter being of higher order, any difference in outputs due to signal fluctuation is amplified at 12 and if exceeding Zener breakdown voltage of diodes 3, 4 is fed to capacitor 8 to bring the upper channel output to equality with the lower channel. In addition a difference signal at amplifier 12, if it exceeds Zener breakdown voltage of diodes 21 or 22 alters the output of V.C.O. 26 to increase the clocking rate of the a#d converter 2.
Patent GB-1137970-A (GB)
Title: Improvements in or relating to hydraulic accumulators
IPC: F15B1/10
Filed: 1966-11-28
Abstract: 1,137,970. Hydraulic accumulators. V. LANGEN [trading as LANGEN & CO. ] Nov.28, 1966, No. 53145/66. Heading F1P. A method of making a hydraulic accumulator of the flexible-partition type comprises the steps of forming a sheet-metal cup a, Fig. 1, which has a hemi-spherical base, inserting a flexible-partition or diaphragm b therein and re-shaping the cup to render it substantially spherical with an opening d, Fig. 3, to give liquid access to one side of the diaphragm, a space on the opposite side of the diaphragm being charged with a pressurized gas through e.g. a hole f that is subsequently plugged by welding material g. The diaphragm may be made of rubber and have a rim b<SP>1</SP> containing a ring c, which ensures sealing engagement of the rim with the wall of the accumulator. A pipe union e maybe welded to the accumulator circumjacent the opening d.
Patent GB-1457534-A (GB)
Title: Strap fastener
IPC: F16L3/233
Filed: 1973-11-19
Abstract: 1457534 Strap fastener UNITED CARR LTD 19 Nov 1974 [19 Nov 1973] 53515/73 Heading E2B A strap fastener comprises a connector 10, Figs. 1 and 2, and a separate strap 11, Figs. 3 and 4, the connector having means for attaching the connector to a support 31, Fig. 5, a body portion 12 having slots 13, 14 extending therethrough and a lug 15, the strap 11 being slidable through the slots 13, 14, means 26 being provided for limiting movement of the strap through the slot 13 and the strap having at least one abutment 28 for interengagement with the lug 15 on the connector 10 so as to resist movement of the strap 11 in one direction through the slot 14. The connector 10 has a flexible annular sealing skirt 16 and a shank 17, the latter comprising a central stem 18, flexible wings 19, 20 and a nose 21. The strap 11 has faces 22, 23, a leading end 24, a trailing end 25 and a sprag 29. The connector 10 and the strap 11 are used to attach a bundle of cables 30 to a panel 31 having a circular aperture 32 formed therein. The leading end 24 of the strap is passed through the slot 13 in the connector, from right to left, as seen in Fig. 5. The means 26 which is on the trailing end 25 of the strap abuts the body portion 12 of the connector and the sprag 29 resists return movement of the strap through the slot 13. The strap is then wrapped around the cables 30 and the leading end 24 is passed through the slot 14 of the connector from right to left. The lug 15 locks behind rib 28 to prevent withdrawal of the strap from the slot 14. The shank 17 of the connector is forced through the aperture 32 in the panel 31 to provide a rattle and vibration free mounting of the connector 10 on the panel 31.
Patent GB-1241188-A (GB)
Title: Improvements relating to trolley-wire overhead electric supply systems for supplying power to electric vehicles
Inventor: TUSTIN ARNOLD
IPC: B60M1/20
Filed: 1968-11-12
Abstract: 1,241,188. Supporting overhead conductors. BRITISH RAILWAYS BOARD. 11 Nov., 1969 [12 Nov., 1968], No. 53628/68. Heading H2C. An overhead electric supply system for supplying power for the propulsion of electric vehicles comprises a contact wire 1 adapted to be contacted by a pantograph and supported at spaced intervals from masts 11 by a leaf spring 13 anchored to a member 10 cantilevered via an insulator 12 to the mast, the spring being forced by the weight of the wire and the tension therein to contact an abutment 14 such that the spring is stiff for an upward force below a predetermined value acting on it through the wire and is relatively soft for an upward force above this value. The spring would occupy the dotted line position if unloaded.
Patent GB-1126700-A (GB)
Title: Roll seal for vacuum strip-treating chamber
IPC: F27D99/00
Filed: 1965-12-17
Abstract: 1,126,700. Coating by vapour deposition. UNITED STATES STEEL CORP. Dec. 17, 1965 [Jan. 8, 1965], No. 53686/65. Heading C7F. A strip 42 of e. g. steel is fed to a vapour deposition apparatus, where aluminium may be deposited, by rollers 25, 17, 26 which all have resin seals see Fig. 3 (not shown), at their ends while the rollers 25, 26 have spring (46) urged longitudinal seals 44 of copper impregnated graphite. The rollers are mounted in bearings carried by bars 22 pivoted at 20, and are urged together by springs 37, the roll gap being adjusted by screws 40. The assembly is mounted in a box 10, which is itself contained in a vacuum box, secured to the vapour deposition apparatus.