baber/WOPTO huggingface dataset:
Patent GB-1039479-A (GB)
Title: Improvements in or relating to transistor circuit arrangements
IPC: H03K17/28
Filed: 1964-10-02
Abstract: 1,039,479. Transistor circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 2, 1964 [Oct. 7, 1963], No. 40167/64. Heading H3T. In the transistor timer circuit shown the voltage at the emitter of transistor 12 is stabilized by connecting a non-linear element 15, such as a voltage dependent resistor, or a Zener diode, in parallel with the emitter-collector path and the relay load 14. The circuit is connected to a D.C. supply of high internal resistance and the capacitor 5 is charged by depressing pushbutton switch 4. The potential now at the junction between resistors 6 and 7 causes transistor 10 to conduct so that current flows from its emitter through the base-emitter circuit of transistor 12, which conducts to operate the relay. When the transistor cuts-off due to discharge of the capacitor 5 the current through resistor 13 is maintained by an increase in current through the non-linear element 15. In alternative circuits (Figs. 2 and 3, not shown), for use as a thermostat, an increase in temperature causes the current through the negative temperature coefficient resistor 7 to increase and so cause transistor 12 to conduct and operate the relay. The resistors 7 and 13 can be interchanged or can be replaced by positive temperature coefficient resistors. Variation in mains supply can be further compensated for by an additional non-linear element 19.
Patent GB-895354-A (GB)
Title: Subscriber line circuit in electronic transmission equipment for telecommunications and particularly for telephone systems
IPC: H04Q3/52
Filed: 1958-12-12
Abstract: 895,354. Automatic - exchange systems. STANDARD TELEPHONES & CABLES Ltd. Dec. 12, 1958 [Dec. 14, 1957], No. 40172/58. Class 40 (4). In a subscriber's line circuit, means is provided for converting received dial pulses into corresponding bursts of A.C. which are applied to the electronic switches of the exchange. With the subscriber's line loop closed the diode D1 is biased into its low conductivity state, but on opening of the loop it is blocked by potential Ud1 via R3, whereupon the A.C. from source Uf passes over the talking circuit switches GL, GL<SP>1</SP> for the duration of the break. Reference has been directed by the Comptroller to Specification 801,576.
Patent GB-1129358-A (GB)
Title: 5,8-dihydro-5-oxopyrido[2,3-d]pyrimidine derivatives, and processes for the preparation thereof
IPC: C07D471/04
Filed: 1966-09-08
Abstract: 1,129,358. Pyridopyrimidine derivatives. DAINIPPON PHARMACEUTICAL CO. Ltd. 8 Sept., 1966 [8 Sept., 1965 (2); 10 Sept., 1965 (2)], No. 40213/66. Heading C2C. 5,8 - Dihydro - 5 - oxopyrido[2,3-d]pyrimidine derivatives of the general formula (wherein R 1  represents H or a C 1-6  alkyl radical, R 2  represents H, OH, NH 2 , a halogen atom or a C 1-6  alkyl, alkoxy or alkylthio radical, R 3  represents H, OH, a C 1-6 alkyl, alkoxy or alkylthio radical or a radical -NR<SP>1</SP>R<SP>11</SP> where R<SP>1</SP> is H, NH 2  or an alkyl, cycloalkyl, hydroxyalkyl or alkyl-substituted aminoalkyl radical and R<SP>11</SP> is H or an alkyl radical, or R<SP>1</SP> and R<SP>11</SP> with the N atom form a heterocyclic ring, and R 4  represents H or an alkyl radical), including enolic tantomers of the compounds in which R 4  is H, are prepared by ring-closure by heating of N-(6- pyrimidinyl) - aminomethylenemalonic acids or esters of the general formula followed, if desired, by one or more of the following conversions: (a) converting an ester (R 1 =C 1-6 alkyl) into a free acid (R 1 =H) by acid or alkaline hydrolysis; (b) when R 4  = alkyl, simultaneously or independently converting a compound in which R 3  is a C 1-6  alkoxy or alkylthio or an -NR<SP>1</SP>R<SP>11</SP> radical into one in which R 3  is OH by hydrolysis; (c) converting a compound in which R 4  is H into one in which R 4  is alkyl by treatment with an alkylating agent (preferably in the presence of an alkaline catalyst, in which case, if the starting material is an ester, it may be simultaneously hydrolysed to the free acid); (d) converting a compound in which R 3  is a C 1-6  alkoxy or alkylthio radical into one in which R 3  is a radical -NR<SP>1</SP>R<SP>11</SP> by reaction with an amine R<SP>1</SP>.NH.R<SP>11</SP>; (e) converting a compound in which R 3  is a C 1-6  alkylthio radical into one in which R 3  is H by heating with Raney nickel. The products in which R 1  is H may be converted into salts with organic amines. N - (6 - Pyrimidinyl) - aminomethylenemalonic acids and esters of the second general formula above are prepared by condensing a compound of the general formula with a compound of the general formula or condensing a compound of the general formula with a compound of the general formula Pharmaceutical compositions having antibacterial activity contain compounds of the first general formula above. They may be administered externally, orally or by injection.
Patent GB-1176195-A (GB)
Title: Pharmaceutical Preparations and a Process for the Manufacture thereof
IPC: A61K9/14
Filed: 1967-09-04
Abstract: 1,176,195. Sedative &c. compositions. F. HOFFMANN-LA ROCHE & CO., A.G. 4 Sept., 1967 [6 Sept., 1966], No. 40257/67. Heading A5B. Sedative, muscle relaxant and anti-convulsant compositions comprise the product formed by mixing the hydrochloric acid salt of 7- chloro-1-methyl-5-phenyl-2, 3-dihydro-1H-benzdiaz [1, 4] epine and an aluminium silicate, e.g. "Albagel" or a magnesium aluminium silicate, e.g. "Veegum", in the presence of water, e.g. at 70-85‹C., there being present in the reaction mixture at least 9 parts by weight of colloid for each part by weight of benzdiazepine compound. The reaction product is of particular value in the formulation of aqueous suspensions, due to its lack of unpleasant flavour and non-irritative nature.
Patent GB-1484995-A (GB)
Title: Yarn texturing
Inventor: RODEN M J
IPC: D02G1/02
Filed: 1973-08-28
Abstract: 1484995 Cooling yarns between twist setting and false twisting IMPERIAL CHEMICAL INDUSTRIES Ltd 19 Aug 1974 [28 Aug 1973] 40524/73 Heading D1F In a yarn texturing process in which the yarn is advanced from twist setting means through a heat transfer zone to false twisting means, the yarn is cooled while in the beat transfer zone by contact with a fluid flowing in a transverse direction to the advancing yarn, which flow also supports the yarn in a curved path. The curved path may comprise one or more arcs so that the yarn direction after the curved path is different from the yarn direction before the curved path. Alternatively, the yarn direction after the curved path may be the same as that before the curved path, e.g. the path may comprise a 360 loop. The texturing of polyethylene terephthalate yarn is exemplified, in which the yarn is cooled and guided by a cushion of air on a ring providing a yarn path loop of 360. The yarn may be derived from a polyester or a polyamide, and may be sequentially or simultaneously drawn and textured. The fluid may be mixtures of gases or single gases, including steam. The means used to cool the yarn may also be used to heat it. In a yarn texturing process, the yarn may be sequentially heated and cooled by fluid flowing transversely to the yarn and supporting it in a curved path.
Patent GB-1069735-A (GB)
Title: Process for the production of water-soluble or water-swellable surface-active reaction products
Inventor: WINDEMUTH ERWIN
IPC: C09K23/00
Filed: 1964-10-05
Abstract: Surfactants suitable for emulsifying oils and petrol, and for the preparation of hand and face soaps, are prepared by reacting a dewatered polyethylene glycol ether containing at least 2 hydroxy groups and having a M. Wt. of at least 1000, with either (a) a mono-functional isocyanate having a hydrocarbon radical of more than 8 carbon atoms, or (b) a polyisocyanate and a monofunctional isocyanate, alcohol, mercaptan, amine or carboxylic acid having a hydrocarbon radical more than 8 carbon atoms, in such quantities that the hydrocarbon radical which contains more than 8 carbon atoms does not amount to more than 6% of the reaction product (see Division C3). In a typical Example (2), aqueous solutions of the reaction products of polyethylene glycol ether and tolylene diisocyanate with stearyl isocyanate and with myristyl isocyanate are used to produce heavy petrol and mineral oil emulsions respectively. In the same example a solid hand soap is produced by mixing the reaction product of polyethylene glycol ether, tolylene diisocyanate and stearyl isocyanate with talcum or betonite, quartz, an alkylaryl sulphonate and water.ALSO:Water-soluble surface-active compounds of formulae (a) R-Y-A-Y-R, (b) R-Y-(A-T)n-A-Y-R and (c) R-X-T-(A-T)n -X-R, wherein R is a hydrocarbon group having more than 8 carbon atoms, Y is -NHCO.O-, A is a polyethylene glycol ether chain, T is a diisocyanate residue, and X is -OCO.NH-, -S.CO-NH-, -NH.CO-NH-, >N.CO.NH- or -CO.NH-, n is 1-10, and the total amount of hydrocarbon radical which contains more than 8 carbon atoms is less than 6% by weight, are prepared by reacting a dewatered polyethylene glycol ether containing two hydroxyl groups and having a M.Wt. of at least 1000, with (a) a monofunctional isocyanate having a hydrocarbon radical containing more than 8 carbon atoms, (b) a diisocyanate having a hydrocarbon radical containing more than 8 carbon atoms, or (c) a diisocyanate and a monofunctional alcohol, mercaptan, phenol, or carboxylic acid or a primary or secondary monamine; in each case the NCO/active hydrogen ratio is 1:1.  In a modification, the monoisocyanate used in (a) or the diisocyanate used in (b) or (c) may be partly or wholly replaced by a polyisocyanate.ALSO:A water-resistant coating for concrete, plaster, wood and paper is prepared by mixing the reaction product of polyethylene glycol, tolylene diisocyanate and myristyl alcohol with water, a latex of an acrylic acid butyl ester -acrylonitrile copolymer, and an aqueous dispersion of carbon black. (see Example 2).
Patent GB-1292249-A (GB)
Title: Printing apparatus for recording coded data
IPC: G06K1/12
Filed: 1971-09-02
Abstract: 1292249 Selective printing NATIONAL CASH REGISTER CO 2 Sept 1971 [21 Sept 1970] 40933/71 Heading B6F Recording coded data represented by coloured areas.-A thermal recording head 36 which has a plurality of selectively heatable elements (150, Fig. 5) in the form of bars, and an electromagnetically operated, spring returned hammer mechanism 38, co-operates selectively with two transfer ribbons (76, 78, Fig. 2) on. a carriage 48 to mark a strip of labels 26 with coded data in the form of coloured bars. Strip feeding mechanism.-The strip 26 is advanced label lengths by nip-rollers 32, 34 and is clamped either side of the recording head 36 by electromagnetic clamps 40, 44. A dancer roller 62 controls the unwinding from a reel 28 which is tensioned by a slip clutch. Thermal recording head. (Figs. 5 and 6)-. The head is` supported on an insulating substrate (144), e.g. glass. A deposited layer (146) of resistive material, e.g. tantalum oxide, is etched to produce a pattern illustrated in (Fig. 5). A conductor material, e.g. gold, is deposited on the resistive layer to leave the heating elements (150) exposed. A thin layer of glass (158) is deposited over the whole and affords protection to the heating elements from abrasion. Ribbon mechanism.-Two ribbons, side-byside, are wound from adjacent spools mounted on common spindles 105, 116. Spindle 116 is rotated by a ratchet and pawl mechanism (Fig. 4) driven by an electromagnet 132. One or other of the ribbons is selectively brought into alignment with the head 36 by transversely moving the carriage 71 with a cylindrical cam (82, Fig. 2) mounted on a shaft 84. The cam is rotated one way or the other by a ever 94 and an electromagnet 98.
Patent GB-896355-A (GB)
Title: Improvements in and relating to thrust bearings
IPC: F16C17/06
Filed: 1958-12-18
Abstract: 896,355. Tilting pad bearings. GENERAL ELECTRIC CO. Dec. 18, 1958 [Dec. 18, 1957], No. 40971/58. Class 12 (1). A tilting pad, for mounting in a Kingsburytype thrust bearing so as to rock relatively to a shaft 1 supported by the bearing, comprises a thick inflexible backing member 3b and a thin flexible wear plate 3d having a layer 3c of Babbitt or like bearing metal for engagement with a flange 2 of the shaft 1, the plate 3d being loosely attached to the backing member 3b by dowels 9, 10, 11. The dowel 9 fits tightly in a hole 9a in the plate 3d and the dowels 10, 11 loosely in radially elongated holes 13, 14 so that the plate 3d and the backing member 3b can expand or contract independently of each other. Each backing member has passages 16, 17, 17a and an inlet port 16a to receive cooling oil which also lubricates the bearing surfaces. The tilting pads are spaced circumferentially at each side of the flange 2, and the oil is supplied through a conduit 8a to an annular chamber 8b connected by passages 7a, 7b in a retainer ring 7 and a tube 7e to the inlet ports 16a. A passage 17b, connecting to the passage 17a in the backing member, supplies oil to a chamber 1a so that the oil is conveyed along a passage 1d to cool the rear of the backing member and also a passage 1c to lubricate the bearing surfaces.
Patent GB-1274392-A (GB)
Title: Process for the impregnation dyeing of synthetic materials
Inventor: HEDERICH VOLKER
IPC: C09B1/54
Filed: 1970-08-26
Abstract: 1,274,392. Dyeing synthetic textile fibres in organic media. FARBENFABRIKEN BAYER A.G. 26 Aug., 1970 [26 Aug., 1969], No. 41080/70. Heading D1B. [Also in Division C4] Synthetic fibre materials e.g. polyesters, polyamides, cellulose triacetate, polyolefines and polyurethanes are dyed by impregnating with an organic solution of a dye of formula I: in which R is a C 1  to C 18 -alkyl, cycloalkyl, aralkyl, alkoxyalkyl, aralkoxyalkyl or aryloxyalkyl group or an optionally substituted phenyl radical, R, is a C 1  to C 18 -alkyl, alkoxyalkyl, cycloalkyl or aralkyl radical or an optionally substituted phenyl group, the sum of carbon atoms in R and R 1  being at least 6 and at most 36, followed by a heat treatment e.g. dry heat at 120-230‹C or by heating in superheated solvent vapour at 100 to 150‹C. The preferred solvents boil at 40-150‹C and are immiscible with water, e.g. tetra- and trichloroethylene, and 1, 1, 1-trichloroethane, the dyes may be added to the dyebath in solution in solvents which are miscible with the waterimmiscible solvents.
Patent GB-1010506-A (GB)
Title: Improvements in abrasive products
Inventor: CANTRELL JOHN
IPC: B24D3/18
Filed: 1960-11-30
Abstract: Porous abrasive tools, e.g. wheels, comprise a non-metallic abrasive material bonded by a bond which incorporates, as a pore former, a water soluble crystalline refractory salt melting above 750 DEG  C. which salt may either be dissolved out in use by an aqueous coolant, or leached out prior to use.  Although fused aluminium oxide, silicon carbide, corundum or garnet may be employed, the most suitable abrasive is diamond grit, while the bond is wholly of metal or ceramic, or of metal and ceramic, and the refractory salt may be sodium chloride or sulphate, potassium chloride or carbonate, or calcium chloride, but is most suitably sodium pyrophosphate, and may be added to the bond-forming material in amounts up to 80% by volume. Suitable bonds are (a) 80% Cu powder and 20% Sn powder, (b) 10% Ag powder, 20% Sn powder and 70% Cu powder, (c) frit and cast iron, and (d) low melting glass powder.  The tools are suitably made by hot-pressing at 650 DEG  and 10,000 p.s.i. Specification 715,528 is referred to.
Patent GB-1200370-A (GB)
Title: Process for machining expanded honeycomb
IPC: B23P25/00
Filed: 1967-09-11
Abstract: 1,200,370. Supporting honeycombs during machining. HEXCEL CORP. 11 Sept., 1967 [12 Sept., 1966], No. 41443/67. Headings B3B and B3K. A method of clamping an expanded honeycomb core 10 comprises securing the core and pads 12-12<SP>111</SP> in a frozen liquid and applying a clamping force to the pads.  (Previous methods consisted in the use of water-soluble waxes to support the honeycomb; spraying the honeycomb with water which is subsequently frozen to support it and secure it to a base-plate; and freezing the honeycomb in a block of ice and clamping the block.) The core is mounted in water in a doublewalled tray 6, 8, Fig. 1, cooled by brine 15. It is engaged by pressure pads 12-12<SP>111</SP> joined by clamps 14, 14<SP>1</SP>. The water is frozen and the solidified block removed. The block is then clamped by means 16, Fig. 3, and supported by rollers 18. The core is milled by cutters 20.
Patent GB-1473256-A (GB)
Title: Biguanide salts
IPC: C07C239/00
Filed: 1975-10-10
Abstract: 1473256 Biguanide dichloroacetates F HOFFMANN-LA ROCHE & CO AG 10 Oct 1975 [11 Oct 1974] 41611/75 Headings C2C and C2P The invention comprises dichloroacetates of the formula where R<SP>1</SP> is hydrogen or lower alkyl or lower alkenyl and R<SP>2</SP> is lower alkyl, aryl, aryl-(lower alkyl) or aryloxy-(lower alkyl) or R<SP>1</SP> and R<SP>2</SP> are together lower alkylene; R<SP>3</SP> is hydrogen or a group -PO(OR<SP>4</SP>)(OR<SP>5</SP>) where R<SP>4</SP> and R<SP>5</SP> are hydrogen or cations or R<SP>4</SP> is hydrogen and R<SP>5</SP> is lower alkyl or R<SP>4</SP> and R<SP>5</SP> are together alkylene; and n is 1 or 2, the term "lower" limiting the groups qualified thereby to a maximum of 7 carbon atoms, and their preparation by reacting the desired biguanide with dichloroacetic-acid or a biguanide salt with a dichloroacetate. Therapeutic compositions, capable of lowering blood sugar levels, comprise compounds of the invention together with suitable carriers, in forms suitable for oral and rectal application.
Patent GB-925673-A (GB)
Title: Improvements in or relating to collapsible shelters
Inventor: NEUMARK OTTO WALTER
IPC: E04H15/20
Filed: 1960-12-03
Abstract: 925,673. Collapsible tents. P. FRANKENSTEIN & SONS (MANCHESTER) Ltd. Feb. 26, 1962 [Dec. 3, 1960], No. 41656/60. Class 20 (1). A tent consists of a flexible ring or loop B having secured thereto an oval canopy panel C, crescent-shaped canopy end portions F and an oval ground sheet G. The ring B may be inserted into a pocket in the canopy or be secured thereto by tie tapes or flaps, the ring B being made from a length of inflatable highpressure fire hose whose ends are joined by a metal fitting A. The ring B may be replaced by a continuous tube of flexible impermeable fabric (see Specification 872,827), which is permanently attached to the panel C. Again, the ring B may be made up from sections of flexible cone, steel or plastic tubing and in the latter case a flexible plastic canopy may be bonded thereto. The pocket may be made by hemming the edge of the panel C or by providing the panel C with an inner skin D. The panel C may be made of nylon fabric coated with a synthetic rubber or plastic. The panels F may be secured to the ground sheet G by a slide-fastener M.
Patent GB-1034579-A (GB)
Title: Production of chlorinated hydrocarbons
IPC: C07C17/15
Filed: 1964-11-13
Abstract: Aliphatic hydrocarbons and chlorohydrocarbons are oxychlorinated in a fluidized bed of oxychlorination catalyst particles by introducing the starting material, oxygen and Cl2, HCl or a mixture thereof, in the gaseous state to an inert fluidized bed, operating below 500 DEG F., for mixing, and introducing the mixed gases into a second fluidized bed having a diameter 1/3 rd to 1/50 th that of the inert bed, maintaining the temperature of the second bed suitable for oxychlorination, and preventing catalyst particles from the second bed from entering the first bed.  The first fluidized bed may contain sand, and the second an oxychlorination catalyst such as CuCl2/KCl on a support.  In an example ethylene dichloride is prepared from ethylene, HCl and oxygen.  Suitable apparatus is described (see Division B1).ALSO:Apparatus suitable for catalytic oxychlorination (see Division C2) comprises a lower inert fluidized bed and an upper catalytic fluidized bed, the diameter of the latter being 1/3 rd to 1/50 th that of the former.  The upper bed may consist of a multi-tubular reaction zone, each tube (e.g. 13 in Fig. 1 not shown) having a diameter 1/3 rd to 1/50 th that of the lower single zone 4. Gaseous reactants are introduced separately at 5, 6 and 7, are mixed in 4, and enter the tubes 13 through holes 12 (Fig. 5 not shown) and distributor plate 14.  Catalyst particles falling through 14 collect at 16 and may be removed through 17 without entering the inert fluidized particles in 4.
Patent GB-1355528-A (GB)
Title: Remote control of electrical loads
IPC: H02J13/00
Filed: 1971-09-07
Abstract: 1355528 Remotely controlled switching systems MITSUBISHI DENKI KK 7 Sept 1971 [8 Sept 1970 28 Dec 1970] 41685/71 Heading H2H Remotely controllable switching apparatus 10 for controlling the supply of power to a load 11 comprises at least two power input terminals 15,25, at least two power output terminals 1L, 2L, a switch 19 connected between the input and output terminals, and circuits for operating the switch in response to control signals of first and second frequencies applied between the terminal 1S and an auxiliary terminal 3S. A central control 9 transmits a control signal to a circuit 7 which in turn transmits the control signal at the first or second frequency to the apparatus 10 via the neutral conductor 5 of a low voltage distribution line 3 and an auxiliary conductor 6. The first frequency signal causes resonance in the series circuit 14, 16 thereby triggering a thyristor 20 to supply current from the high voltage conductor of the line 3 to a heater 21 which deforms a bimetallic device to change over the switch 19. Power is therefore supplied to the load such as an electric water heater connected between the terminals 1L, 2L. Similarly, transmission of the second frequency signal causes resonance in a series circuit 24, 26 to trigger a thyristor 29 thereby energizing a heater 23 and opening the switch 19. In a modification the heaters are replaced by coils to electromagnetically operate the switch 19 and each thyristor may be replaced by a triac or a pair of inverse-parallel connected thyristors.
Patent GB-1341903-A (GB)
Title: Continuous process for 4,4,4-trichloro-1,2-epoxybutane
IPC: C07D303/08
Filed: 1971-09-07
Abstract: 1341903 4,4,4 - Trichloro 1,2 - epoxybutane OLIN CORP 7 Sept 1971 [30 Oct 1970] 41687/71 Heading C2C 4,4,4 - Trichloro - 1,2 - epoxybutane is prepared continuously by (i) reacting in a first reaction zone, allyl alcohol with CCl 4 , in the presence of a catalyst for the reaction to obtain a first liquid phase mixture, comprising 2,4,4,4- tetrachlorobutanol, CCl 4  and allyl alcohol, and a first vapour phase mixture, comprising allyl alcohol, CCl 4 , water vapour and HCl, (ii) azeotropically separating and condensing said first vapour phase mixture, into an aqueous second liquid phase and a non-aqueous third liquid phase, removing said second liquid phase and refluxing said third liquid phase back into said first reaction zone, (iii) partially evaporating said first liquid phase mixture to obtain a second vapour phase mixture, comprising mainly allyl alcohol and CCl 4 , and a fourth liquid phase mixture of 2,4,4,4-tetrachlorobutanol, (iv) condensing said second vapour phase mixture and recycling it to said first reaction zone, (v) washing said fourth liquid phase mixture with dilute acid, (vi) reacting said fourth liquid phase mixture in a second reaction zone with an aqueous basic dehydrohalogenation agent to obtain a two-phase reaction product consisting of an aqueous fifth liquid phase comprising spent dehydrohalogenation agent, and a non-aqueous sixth liquid phase comprising 4,4,4 - trichloro - 1,2 - epoxybutane which is separated and recovered.