baber/WOPTO huggingface dataset:
Patent GB-1479306-A (GB)
Title: Fluid and gas separation equipment
IPC: B04B1/12
Filed: 1974-10-09
Abstract: 1479306 Centrifugal separator H L BURGESS [9 Oct 1973] 43656/74 Heading B2P An apparatus for the removal of gas from a gas-containing fluid, e.g. drilling mud, comprises a casing 12 having an inlet 13 for gascontaining fluid, a hollow body 27 rotatably mounted in the casing, a blower 17 mounted on the casing with an impeller 22 and an inlet 24 communicating with the interior of the body for applying suction thereto, the body having an inlet opening 29 in its lower part for the fluid and outlet means 45 at its periphery, a shaft 25 jointly connecting the impeller and the hollow body, and power means 18 operatively connected to the impeller for rotating the impeller and the body as a unit for acting on the fluid centrifugally and by suction to draw the fluid through the inlet opening 29 and discharge the same through the outlet means 45 while separating gas from the fluid. The casing 12 is mounted within a flotation collar 6 which ensures that the casing inlet 13 is submerged in contaminated mud in a tank 5 to the wall of which the collar is pivotally connected by a link 7 so as to locate the casing within the tank. The top 14 of the casing has an opening 15 from which projects upwardly a neck 16 connected to the blower housing 17 which has a toroidal gas outlet 23. A motor 18 is supported by legs 19 on the housing 17 and is connected by a shaft 18a to the impeller 22. The latter has a bottom inlet 24 from which depends a separated-gas outlet tube 25 extending through, and secured to, the top wall 26 of the hollow rotor 27. The inlet opening 29 in the bottom 28 of the rotor has outlet portions 30 provided with radial or helical vanes 32. Downstream facing vents 37 are provided near the top of the rotor 27 so that sand and cutting chips centrifugally driven upwardly along the frustoconical wall 36 of the rotor discharge into an annular recess 38 in the casing. The recess communicates via piping 39 passing through an opening 40 in the collar 6 and via a hose 40a with a collection box 41 from which the sand and chips may be periodically washed out through a valved outlet 42. The outlet means 45 are also in the form of downstream facing vents and serve to discharge the clean mud via holes 47 in the casing and openings 40 and 48 in the collar. In another embodiment, Fig. 4 (not shown) for inclusion in a pipeline through which mud flows, the casing has a lower opening of reduced cross-section for attachment to a flanged mud inlet pipe. The rotor has only one series of peripheral vents at the top for discharge of the gas-free mud, no provision being made for separate discharge of sand and cutting chips. The vents discharge into the casing annular recess which is connected with an outlet pipe.
Patent GB-980828-A (GB)
Title: New heptaminol derivative
Inventor: HOFFMANN CHARLES
Filed: 1962-11-19
Abstract: The invention comprises 2-amino-6-methyl-heptan-6-ol aspartate and its preparation by reacting the parent acid (or a salt thereof) and base (or a salt thereof).  The compound has a cardiorespiratory action in cardiac and respiratory insufficiencies (see Division A5).ALSO:Pharmaceutical compositions comprise 2-amino - 6 - methylheptan - 6 - ol aspartate in association with a carrier.  The compositions may be administered orally, parenterally or rectally, e.g. as powders, granules, tablets, pills, potions, drops, syrups, elixirs, solutions and suppositories, and may also contain vitamins and/or a local anaesthetic.  2-Amino-6-methylheptan-6-ol aspartate has a cardio-respiratory action in cardiac and respiratory insufficiencies.
Patent GB-1157124-A (GB)
Title: Electrode for Fuel Cells
IPC: H01M4/96
Filed: 1966-09-30
Abstract: 1,157,124. Fuel cell electrodes. GENERAL ELECTRIC CO. 30 Sept., 1966 [1 Oct., 1965], No. 43767/66. Heading H1B. An electrode suitable for use in a fuel cell comprising a gas adsorbing metal catalyst dispersed on support material which is held together by a binder, is characterized by the support material consisting of particles of carbon containing boron. Mixtures of boron and carbon (e.g. graphite) may be heated together, the boron becoming absorbed in the carbon, provided that there is less than the stoichiometric amount of boron to form boron carbide as this material is not suitable; carbon containing boron and also containing boron carbide, however, is highly suitable. The catalyst may be platinum (preferably deposited by decomposition of a platinum compound free of halogen e.g. diammino-dinitritoplatinum), silver, palladium, an alloy of platinum and ruthenium, or nickel boride. The binder may be polytetrafluoroethylene. Examples are given.
Patent GB-1320527-A (GB)
Title: Plug-in couplings for garden and other hoses
IPC: F16L37/133
Filed: 1970-09-15
Abstract: 1320527 Releasable pipe coupling WOLFGERATE GmbH 15 Sept 1970 [22 Sept 1969] 44031/70 Addition to 1275273 Heading F2G A plug-in coupling for hosepipes as described in the main Specification 1,275,273 is modified with regard to the resilient fingers 4, 14 (Fig. 6). Two groups of fingers are provided on the female part 3, a first holding group 4 for co-operating with the conical shoulder of the male part 10 in a coupled condition, alternating with a second driving group 14. On a coupling operation the nose of the male part 10 first co-operates with and forces radially outwards the driving fingers 14. These co-operate with an oblique face inside the spring-pressed sleeve 5 to slide the sleeve further on to the female part 3. The movement releases the holding fingers 4 from a sleeve shoulder 15, so allowing their radial movement and insertion of the male part 10. The coupling is locked in position by the holding fingers 4 co-operating with male part 10 and the sleeve shoulder 15. In a second embodiment (Fig. 8) the driving fingers 170 are mounted on a second sleeve 18, which on coupling is moved independently of the main sliding sleeve 5 by co-operation between the fingers 170 and the male part 10, so releasing the holding fingers 40 from a shoulder 150.
Patent GB-1441329-A (GB)
Title: Gypsum plaster compositions
IPC: C04B24/12
Filed: 1973-09-20
Abstract: 1441329 Gypsum plaster composition DOW CHEMICAL CO 20 Sept 1973 [21 Sept 1972] 44146/73 Heading C1H A gypsum plaster composition suitable for mixing with water to produce a paste or dispersion for plastering comprises gypsum and as additive nitrilotriacetic acid, an alkali metal salt thereof or a mixture thereof and an alkaline agent to control the pH of an aqueous paste or dispersion of the composition in a range of from 6À5 to 14 and to increase the finishing time of the composition. A water retention agent, e.g. non-ionic alkyl cellulose ethers and hydroxyalkyl cellulose ethers may be included in the composition. Examples 2-6 illustrate compositions containing gypsum, lime, nitrilotriacetic acid and methylcellulose. Examples 7-12 illustrate compositions containing gypsum, nitrilotriacetic acid and NaOH, NH 4 OH or lime.
Patent GB-965750-A (GB)
Title: Improvements in flash evaporators for distilling sea or other brackish water
Inventor: HUGHES CECIL HENRY
IPC: B01D3/06
Filed: 1959-12-30
Abstract: 965,750. Evaporators ; distilling sea-water. AMF INTERNATIONAL Ltd. Dec. 15, 1960 [Dec. 30, 1959], No. 44173/59. Heading BIB. In an evaporator, particularly for use in the distillation of sea water, wherein the sea water is heated and then passed successively through a series of flash chambers A<SP>1</SP> . . . A<SP>6</SP>, Fig. 1, via channels 1 which extend below the chambers, entrainment of saline droplets in the flashedsteam is minimized by providing plates 2, each having a horizontal upper edge, which constrain the water to flow in the form of a thin layer over the horizontal base of each flash chamber. The flash chambers, which are maintained under reduced pressure, are so arranged that the water follows a zig-zag course in passing through them. Tubular condensers B<SP>1</SP> ... B<SP>6</SP> are mounted above the flash chambers, each condenser being twice the length and half the width of a flash chamber, so that each condenser extends lengthwise over two flash chambers, and two condensers extend laterally over each flash chamber. The sea water to be distilled is pumped as cooling- medium through the condensers in the order B<SP>6</SP> ... B<SP>1</SP>, and is thereby preheated. An external heater for the water is provided between the last condenser and the first flash chamber. In order to minimize the formation of scale, the temperature of the water entering chamber A<SP>1</SP> is kept below 190 ‹C. by a valve which automatically controls the supply of the heating-medium, e.g. hot combustion gases, steam or hot water, to the external heater. The external heater may comprise a fuel-burner immersed in the sea water so that the combustion gases are in direct contact with the water. The temperature of the feed-water entering the first condenser is kept above a predetermined value, e.g. 70 ‹F., by mixing some of the warm unflashed brine (withdrawn from the last flash chamber) with the feed water. In an alternative embodiment, illustrated in Fig. 4 for use in an evaporator having four flash chambers, the warm brine from the last chamber A<SP>4</SP> is pumped through one pass of a heat-exchanger D<SP>1</SP>, and the feed water is pumped through the other pass. The condensing spaces are arranged in series so that the condensate (i.e. distilled water) flows from the first condenser B<SP>1</SP> through the succeeding condensers to the outlet. Automatic devices are described for shutting-down the plant in the event of a fault.
Patent GB-1088416-A (GB)
Title: Polyester compositions having non-standard molecular weight distribution and a method of manufacturing same
IPC: C08K5/52
Filed: 1964-11-02
Abstract: The invention comprises essentially linear polyesters having a non-standard molecular weight distribution which contain a phosphorus containing compound which inhibits ester interchange so that the polyester retains its non-standard molecular weight distribution on heating.  They are obtained by heating together two or more polyesters having the same repeating units and different average molecular weights in the presence of the inhibitor.  The inhibitor may be added during or before the mixing of the polyesters, or after a required degree of ester interchange has occured.  Suitable phosphorus compounds are triphenyl phosphite, tris - (2:3 - dibromopropyl) phosphate, tetrakis - (hydroxymethyl) phosphonium chloride, tri-(tridecyl) phosphite, diethyl hydrogen phosphite, tricresyl phosphite, 2-ethylhexyl octyl phenyl phosphite, diphenyl phosphite, trihexyl phosphite, tributyl phosphite, bis-(2-ethylhexyl) phosphite, butyl acid phosphate, tri-biphenyl phosphite and tetrabutyl pyrophosphate, tri-, di- and mono-ammonium phosphates, diammonium sodium phosphate, magnesium or manganese hydrogen phosphate, ammonium dihydrogen phosphite and diammonium sodium pyrophosphite. Suitable polyesters may be derived from o-, m- and p-phthalic acids, adipic and sebacic acids; ethylene, propylene tetramethylene, diethylene and triethylene glycols and cyclohexane dimethanol; a minor amount of pentaerythritol; omp-hydroxybenzoic acids and p-hydroxyethoxy-benzoic acid; and hydroquinone, catechol, resorcinol and bisphenol A.  In Examples mixtures of polyethylene terephthalates, polyethylene adipates and poly-hydroxyethoxybenzoates are stabilized with triphenyl phosphite, diammonium hydrogen phosphate or tris-(2:3-dibromopropyl) phosphite.  The intrinsic viscosities of the component polyesters and the product mixtures are given.
Patent GB-925783-A (GB)
Title: Improvements in or relating to the production of electric arcs and apparatus for so doing
IPC: H01J17/14
Filed: 1961-12-14
Abstract: 925,783. Discharge apparatus. UNION CARBIDE CORPORATION. Dec. 14, 1961 [Dec. 23, 1960], No. 44777/61. Class 39 (1). [Also in Group XI] A magnetically stabilized low-pressure arc generating exponentially damped sinusoidal oscillations at frequencies from about 100 to 950 kcs./sec., is produced in a chamber 10, continuously evacuated through a pipe 30 to a pressure of less than 10 mm. Hg., by initiating a secondary arc between a cathode 12 and a secondary anode nozzle 14, introducing a stream of gas such as argon, nitrogen, helium or hydrogen through a passage 32 to initiate and maintain an extended constricted arc between the cathode 12 and a primary anode 16, and stabilizing the extended arc by a magnetic field of more than 50 gauss provided by a plurality of coils such as 42 and 44 surrounding the chamber 10, or by magnets 45 and 47. The electrodes may be of tungsten, tantalum or copper and are water-cooled. The chamber wall is also water-cooled, and viewing ports 64, 66 and 68 are provided. Gas is passed through a passage 38 to a cup 40 in the anode 16 and is ionized to neutralize space charge. The preferred operating pressure is 1 to 10 microns Hg. The primary and secondary anodes may have separate power supplies as shown or may have a common supply. Dimensions and operating figures are provided in respect of an apparatus with a thoriated tungsten cathode. Fig. 2 shows an alternative cathode structure in which ion bombardment of the insulator 76 between the cathode 12 and secondary anode 14 is prevented by an insulating sleeve 78, e.g. of quartz and/or a disc 80, e.g. of molybdenum.
Patent GB-1244832-A (GB)
Title: Strengthening glassware
Inventor: BUDD SIDNEY MAURICE
IPC: C03C17/25
Filed: 1967-10-04
Abstract: 1,244,832. Surface-treating glass. UNITED GLASS Ltd. 26 Sept., 1968 [4 Oct., 1967], No. 45235/67. Heading C1M. A glass article is treated, on at least one surface, at a temperature between the strain and softening points of the glass, with an acid gas (e.g. HCl, SO 2 , SO 3 ) to remove Na ions from the glass and deposit a sodium salt on the glass surface, then causing the glass at and adjacent the surface to undergo dehydration, treating with an organo-metallic compound of high decomposition temperature and then causing the organo-metallic or a decomposition product thereof to diffuse into the surface of the article, and finally annealing and cooling. Thus an article is formed wherein there is an outer layer richer in SiO 2  than the interior of the glass, and a surface layer containing a metal dispersed through it. The acid gas may be applied as a solid which decomposes at the temperature used, e.g. NH 4 Cl (NH 4 ) 2 SO 4 . The organo-metallic is preferably of tin or titanium, and is preferably formed from SnCl 4  and lower alcohols, e.g. isopropyl alcohol, or other organic liquids, e.g. butyl acetate. Triethanolamine titanate, titanium lactate, butyl hexylene glycol titanate or the reaction product of TiCl 4  or TiBr 4  and an alkoxide of titanium, e.g. Ti(OR) 4 , may also be used. The sodium salt deposit may be removed prior to the dehydration, preferably by maintaining at the required temperature in a dry, chloride-free atmosphere. The dehydration is carried out by keeping in a dry atmosphere. Similarly, the organo-metallic is caused to diffuse into the glass by maintaining for at least 5 minutes at the process temperature. A surface layer of metal oxide may be provided by exposing the article, after treatment with the organo-metallic, at a temperature above 450‹ C. or the strain point, whichever is the greater, to the vapour of a metal compound which will deposit as the metal oxide, e.g. SnCl 4 , TiCl 4 .
Patent GB-1276236-A (GB)
Title: Improvements in or relating to stamping devices
Inventor: FUNAHASHI TAKAJI
IPC: B41K1/08
Filed: 1970-09-23
Abstract: 1276236 Hand stamps; mounting printing plates T FUNAHASHI 23 Sept 1970 [24 Sept 1969] 45403/70 Headings B6C and B6D A hand stamp comprises a handle 5, spring loading means 15 and a stamp assembly-comprising porous relief blocks 2, porous impregnated inking pads 10 and a cover plate 8 having inking supply slots-which is enclosed within a frame 3 which is itself secured to a channel member 6 depending from the handle 5 through a further frame member 4 which has external grooves 11 which readily co-operate with inwardly protruding grooves 12 on the member 6. The frame member 4 has an indent 7 at each end for accommodating a flange 1 of the frame 3, the provision of these flanges 1 allowing the easy removal of the frame 3 from the frame 4 after the assembly 8, 10, 2, 3 and 4 has been slidably disengaged from the channel member 6. As the frame 3 carries the relief blocks 2 easy replacement of the blocks is achieved by this invention. The blocks may be fed with inks of different colours.
Patent GB-1149136-A (GB)
Title: Improvements in or relating to screw drive for boats
IPC: F02B61/04
Filed: 1967-10-05
Abstract: 1,149,136. Screw propulsion for boats. DR.- ING., h.c.F. PORSCHE K.G. 5 Oct., 1967 [20, Oct., 1966], No. 45460/67. Heading B7V. [Also in Divisions F1 and F2] In a screw drive for boats, the screw 4 is surrounded by a nozzle ring 15 and is driven via a reversing gear 5, 6, 7 by an intermediate shaft 2 extending perpendicularly to the screwshaft 3, the intermediate shaft being surrounded, by a housing 12 divided horizontally in a plane between the engine connecting shaft 1 and the screw shaft, one housing part 13 accommodating the reversing gear and the other housing part 14 accommodating the nozzle ring, both housing parts having co-operating passages for separately conducting the engine exhaust gases and the screw drive. In the embodiment described each housing part also has passages for circulating engine cooling water and passages for circulating the gear lubricating rib, which latter is circulated by means of a rotor 39 revolving with the screw shaft.
Patent GB-1150477-A (GB)
Title: Pulse Generator
Inventor: SMITH DAVID HERBERT
IPC: H03K3/02
Filed: 1966-10-13
Abstract: 1,150,477. Circuits employing bi-stable magnetic elements. WESTERN ELECTRIC CO. Inc. 13 Oct., 1966 [21 Oct., 1965], No. 45776/66. Heading H3B. A program generator comprises a rod 11 of magnetic material in which a stable reverse domain D is nucleated, the leading domain wall dl of which is propagated along the rod in response to a magnetic field to induce pulses in a series of output conductors S1 to Sn, a bias voltage being applied across each output conductor to accelerate the leading domain wall there. Wire 11 is initially magnetized to the left and at time t 1  nucleation driver 13 is activated together with the biases supplied by variable propagation source 16 and battery B connected to the output conductors S1 to Sn through decoupling resistors R. The combination of the biases moves the leading domain wall d1 along wire 11 sequentially passing the positions coupled by the output conductors and inducing pulses p o  therein of an amplitude determined by the number of turns of each output conductor and the velocity of the domain wall d1. In the absence of bias VB the amplitude of each of the output pulses is halved as shown at P. Conductor 15 need not couple the entire wire 11 to provide a uniform field therein but may exclude the spaced apart positions coupled by the output conductors. After the output pulses have been provided the polarity of the bias from source 16 is reversed to prepare the device for a further cycle of operation. In another arrangement a reverse domain is propagated simultaneously in a four-phase step-along fashion through each of four wires of unequal length, a single output conductor coupling the wires serially in stepped fashion such that the domains in succeeding wires induce pulses therein during each phase of propagation. A bias is applied to the output conductor to accelerate leading walls and retard trailing walls of domains.
Patent GB-1440129-A (GB)
Title: Lubricant compositions
IPC: C10M169/04
Filed: 1973-10-02
Abstract: 1440129 Lubricants TENNECO CHEMICALS Inc 2 Oct 1973 [13 Nov 1972] 46045/73 Heading C5F A lubricant composition comprises triisodecyl trimellitate and additives which comprise an antioxidant, a metal-passivator, a rust-inhibitor, a load-carrier and a foam-suppressant. It may also comprise one or more other esters where X is an inert substituent, R is an alkyl or cycloalkyl group of 5 to 18 carbon atoms, m is a number from 0 to 4, and n is a number from 2 to 6. The composition may also contain other additives, e.g. detergents, dispersants and viscosity modifiers. Lists of esters and of additives of each category are given.
Patent GB-1497794-A (GB)
Title: Apparatus for inverting ceramic flat ware
IPC: B65G47/252
Filed: 1975-11-28
Abstract: 1497794 Endless conveyers STAFFORDSHIRE POTTERIES (HOLDINGS) Ltd 28 Nov 1975 [24 Oct 1974] 46162/74 Heading B8A Ceramic flat ware articles are sprayed on one side, then inverted, and sprayed on the other side, in a plant for spray coating such ware, Fig. 1 (not shown), the apparatus for inverting an article of flat ware comprising a first conveyer 26 which conveys the articles with their bottoms up as shown in Fig. 2, and as each article passes over the end of the conveyer 26 it tilts, such tilting being assisted by jets 43, 46 of compressed air from nozzles 40, 44 respectively, so that each article is swept beyond its vertical position to fall in a inverted condition on to a second conveyer 50 made of resilient material. A tilt rod or roller 34 which is positioned at the end of conveyer 26 assists in the tilting of each article.
Patent GB-1345752-A (GB)
Title: Method for manufacturing a semiconductor integrated circuit isolated by dielectric material
IPC: H01L21/306
Filed: 1971-10-05
Abstract: 1345752 Etching TOKYO SHIBAURA ELECTRIC CO Ltd 5 Oct 1971 [5 Oct 1970 6 July 1971] 46258/71 Heading B6J [Also in Division H1] The Fig. shows a portion of a silicon integrated circuit in the course of manufacture. The relatively high resistivity islands 13 (and their high conductivity portions 14) have been grown epitaxially on the low resistivity substrate 10, and are separated by a composite insulating layer 16 (silicon oxide, silicon nitride, or alumina) from a polycrystalline silicon support 17 which has been grown thereon. The substrate 10 is removed by selective etching with an etchant that almost exclusively attacks the low resistivity substrate, and diodes and transistors may be formed conventionally in the islands. The etchant consists of an (aqueous) HF: HNO 3 : CH 3 COOH mixture in which an additive is incorporated to oxidize or decompose the nitrous acid (HNO 2 ) formed during etching and so to prevent attack of the higher resistivity material. The etching rate differential is maintained by keeping the nitrous acid concentration in a particular range and though the entire amount of additive may be incorporated initially in the etchant it is preferable to add it incrementally. Oxidative additives mentioned are hydrogen peroxide, potassium permanganate, potassium dichromate, and ammonium persulphate. Decomposant additives mentioned are sodium azide, urea, thiourea, hydrazine, ammonium salts, and sulphamic acid.
Patent GB-462920-A (GB)
Abstract: 462,920. Current and pressure meters. FERRANTI, Ltd., and NORRIS; E. D. T. Nov. 8, 1935, No. 30882. [Class 37] An instrument of the type described in Specification 378,583 wherein a short-circuited coil or like moving system is acted upon by two fixed coil systems so that the movement has a falling torque-displacement characteristic with respect to each fixed coil system, has the limb forming the return magnetic path constructed in a form in which it substantially encases the core of the moving coil. The return limb comprises a U-shape box constructed of strips a, b, d of high permeability material, and a slotted cover h of similar material. The core e, also of high permeability material, is supported centrally in the box structure by end-plates (not shown), and is embraced by a frame o of aluminium forming the short-circuited coil. The coil o has a lug q by which it is secured to the spindle which also carries the pointer s and balance weights y. A disc i with damping magnets may also be provided.