baber/WOPTO huggingface dataset:
Patent GB-1478602-A (GB)
Title: Powder type portable fire extinguishers
IPC: A62C13/66
Filed: 1975-11-10
Abstract: 1478602 Powder type portable fire extinguisher RAMPART ENG CO Ltd 10 Nov 1975 46351/75 Heading ASA A portable, powder-type fire extinguisher comprises a casing 1 containing the powder and a neck ring 3, a powder discharge tube 7 with gas cartridge 5 located therein, a fitting 4 containing axial ports to allow escape of powder to nozzle 23 and radial ports 6 to allow gas to pass into annular chamber 30 and dip tube 32 whose free end is below the surface of the powder. The gas released through 32 fluidizes the powder and expels it past cartridge 5 and through the axial ports. In a second embodiment, Fig. 3, the tube 32 is concentric with and external to powder discharge tube 7.
Patent GB-1330704-A (GB)
Title: Purine derivatives
IPC: C07D473/34
Filed: 1970-09-30
Abstract: 1330704 Purine derivatives FUJISAWA PHARMACEUTICAL CO Ltd 30 Sept 1970 [25 Oct 1969 6 Dec 1969] 46601/70 Addition to 1284581 Heading C2C Novel compounds I: in which A is N or N -# O; R 1  is H, halo, OH, SH, 1-8 C alkoxy, aryl-(1-8 C alkoxy), 1-8 C alkylthio, NH 2 , mono- or di-(1-8 C alkyl)- amino, aryl-(1-8 C alkyl)-amino, acylamino, or NHOH; R 2  and R 3  are H, halo, OH, SH, NH 2 , 1-8 C alkyl, aryl, 1-8 C alkoxy, aryl-(1-8 C alkoxy), or 1-8 C alkylthio; R 4  is H or acyl and R 5  is OH, alkoxy, NH 2  or mono- or di-(1-8 C alkyl)-amino and their salts are prepared by cyclization of appropriately substituted pyrimidine derivatives; by reaction of the appropriate 9-unsubstituted purine with a lactone [B]. by conventional modification of the group COR 5  or by modification of any substituents on the purine ring in an appropriate starting material to give products I. Intermediates isolated are 4 - (5,6 - diamino- 4 - pyrimidinylamino) - 2 - hydroxy - butyric acid, prepared by reacting 6-amino-5-nitro-4-chloropyrimidine with 4-amino-2-hydroxy butyric acid to give 4-(6-amino-5-nitro-4-pyrimidinylamino) - 2 - hydroxybutyric acid and reducing this; and 4-(5-formamido-6-amino-4-pyrimidinyl amino)-2-hydroxy-butyric acid, prepared by reduction of the corresponding 5-nitro compound in the presence of formic acid. Pharmaceutical compositions having hypocholesterolemic activity comprise a compound I together with a suitable excipient in forms suitable for enteral or parenteral application.
Patent GB-1065877-A (GB)
Title: Method for reducing the affinity of polyamides to acid dyestuffs
IPC: C08G69/48
Filed: 1965-11-03
Abstract: The dye-affinity of fibre-forming polyamides is reduced by treating them with a compound of formula <FORM:1065877/C3/1> where R1 and R2 are alkyl, aryl, alkaryl, or aralkyl and R3 is H, alkyl, aryl, aralkyl, alkaryl or acyl or R2 and R3 together represent a divalent radical. Compounds specified are di-acetyl, propionyl, butyryl and caproyl derivatives of aniline, toluidine, propylamine, and butylamine, e.g. diacetyl aniline, diacetamide, triacetamide and N-acetyl, propionyl, butyryl, valeryl, caproyl, benzoyl and phenylacetyl derivatives of valerolactam, caprolactam, and heptyl-lactam, e.g. N-acetyl-caprolactam.  The polyamide, e.g. nylon-6 or nylon-66 may be freed of low molecular weight components, spun into fibres and then treated with the compound. Alternatively the compound may be mixed with granular polyamide and the mixture melt spun. 0.005-0.2 moles may be used per kilogram of polymer.  A small amount of an N,N1-diacyl-dicarboxylic acid diamine may also be added, the N-acyl groups optionally being part of a lactam ring, e.g. N,N1-adipyl-di-e  - caprolactam and N,N1 - terephthalyl - di - e -caprolactam. The treated polymer may be made into textiles, knitted fabric and carpets.ALSO:The affinity of polyamides for acid dyestuffs is reduced by reaction with a compound of formula: <FORM:1065877/D1-D2/1> where R1 and R2 are alkyl, aryl, alkaryl or aralkyl and R3 is H, alkyl, aryl, alkaryl, aralkyl or acyl or R2 and R3 together represent a divalent radical. R1 may be a C1-4 alkyl radical.  R2 and R3 together with the <FORM:1065877/D1-D2/2> group may represent a lactum ring.  Compounds specified include N-acetyl capro-lactams, N,N\sv-diacetylaniline and diactamide. Polyamides specified are nylon 6 and nylon 66.  An N,N\sv-diacyl-dicarboxylic acid diamide may also be present in the reaction mixture to increase the viscosity.  Compounds of this type specified include N,N\sv-terephthalyl-dicapro-lactam.  The treated polyamide may be spun into fibres and dyed.  A textile containing fibres so treated may be dyed in a single bath to give a multicoloured product or one containing different shades of the same colour.  In Examples the dye is Alizarin Reinblan F.F.G.
Patent GB-1080270-A (GB)
Title: Six wheel truck for railroad cars
IPC: B61H13/24
Filed: 1965-11-05
Abstract: 1,080,270. Railway vehicle undercarriages. DEVENCO Inc. Nov. 5, 1965 [Feb. 18, 1965], No. 46899/65. Heading B7L. A six-wheeled railway bogie comprises a rigid frame having side frames 10, Fig. 2, and 11 (not shown), connected by transoms 12, bracing between the transoms to carry a centre pivot (13), Fig. 1 (not shown), three wheel and axle sets 17, 18, each side frame having three slots 14 to slidably receive axle boxes 15 and two springs 16 between the top of each box 15 and the base of the associated slot 14. A rectangular frame 19 is rigidly secured to the bottoms of the axle boxes of each wheel set and carries a pneumatic cylinder 20 for a piston and rod assembly 21 in turn carrying a brake beam 22, longitudinally slidable in the frame 19 and carrying brake shoes 23.
Patent GB-987644-A (GB)
Title: Improvements in or relating to plant incorporating a pressure exchanger
Inventor: OTWAY FRANCIS OSWALD JAMES
IPC: F02C3/02
Filed: 1962-12-12
Abstract: 987,644. Pressure exchangers; gas turbine plant; steam power plant. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Dec. 9, 1963 [Dec. 12, 1962], No. 46935/62. Headings FIG, FIN and F1Q. In a plant which includes a pressure exchanger 1, a gas power turbine 25 and two combustion chambers 22, 23, the high-pressure outlet 7 of the pressure exchanger 1 is connected via a junction 18 to the inlets of the combustion chambers 22, 23, the outlets therefrom being connected respectively to the pressure exchanger high-pressure inlet 9 and the power turbine 25. The pressure exchanger 1 has a cell ring 2 which rotates in the direction of arrow A. Hot gas trapped in the cell passing the position X is expelled through a port 8 connected by a duct 12 to a boiler furnace 17, and is replaced by air supplied by a fan, not shown, connected to a port 6. As the cell ring 2 continues to rotate, the cell communicates with a cell at a higher pressure via a transfer passage 16 and hence gas enters through a port 14 thereby compressing the cell contents. When the cell opens to the high-pressure inlet port 9 combustion gases from the chamber 22 are admitted to further compress the gas before the contents of the cell are exhausted at high pressure through the outlet 7. The gas leaving the outlet 7 may flow through the cold pass 39A of a preheater 39. The respective hot passes 39B, 37B of the preheater 39, and a preheater 37 used to heat additional air supplied to the furnace 17 by a forced draught fan 35, are supplied with exhaust gas from the furnace 17. In Fig. 3 gas leaving the low-pressure duct 12 and the turbine 25 is fed through a duct 41 to the boiler furnace 17 and passes therefrom to an economiser 42, and a pair of stock-gas coolers 43, 44. Steam generated in boiler tubes 45 is supplied to a high pressure steam turbine 47 and passes to a re-heater 49 before passing to an intermediate turbine 51, a double flow low pressure turbine 53, and a condenser 56. Pumps 60, 75, 85 return the water in the condenser 56 to the boiler 17, the water being progressively raised in temperature by passing through bled-steam feed water heaters 64, 69, 72, 78, 82, a drain cooler 62, a gland heater 67, the stock-gas coolers 43, 44 and the economiser 42.
Patent GB-979541-A (GB)
Title: Improvements in and relating to gearwheels
IPC: F16D3/76
Filed: 1963-11-28
Abstract: 979,541. Resilient gear wheels. GEORGE ANGUS & CO. Ltd. Nov. 28, 1963 [Nov. 29, 1962], No. 47022/63. Heading F2U. A gear-wheel comprises a hub 1 and toothed rim 3 connected by a cast or moulded intermediate resilient layer 2 of finely porous cellular polyurethane. As shown, the layer 2 is formed as a ring or alternatively, for higher torque loadings, may be of triangular, square or polygonal form (Figs. 3 and 4, not shown). Additionally, the hub and rim may be of interengaging V or toothed form in axial section (Figs. 5 and 6, not shown), to transmit or withstand axial loads as in a helical gear, the hub being transversely split into halves and assembled through the rim after which the resilient layer is cast or moulded in place. In an alternative method of manufacture the hub, or rim, may be formed with the resilient layer after which the rim, or hub, respectively, may be moulded on in thermoplastic material.
Patent GB-1492056-A (GB)
Title: Intermittent drive mechanisms
IPC: F16H35/02
Filed: 1974-11-01
Abstract: 1492056 Chain gearing J H BREMS 1 Nov 1974 [2 Nov 1973] 47335/74 Heading F2Q An intermittent drive mechanism comprises an input sprocket 22 on a driving shaft 20, an output sprocket 66 on an driven shaft 4, idler sprockets 30, 42 carried by an idler arm 24 rotatably mounted on the driven shaft 4, a chain 64 which passes outside the input sprocket 22 and idler sprockets 30, 42 and inside the output sprocket 66, and a link 52 interconnecting the idler arm 24 and an eccentric pin 58 on the input sprocket 22. On uniform rotation of driving shaft 20, the link 52 causes idler arm 24 to oscillate and superimpose an oscillating component of drive to output sprocket 66 upon a constant rotation component derived from the inerconnection of sprockets 22, 66 by the chain 64. Modified arrangements of sprocket and links are shown in Figs. 8, 12, 16, 20, 21, 22 and 23.
Patent GB-1114567-A (GB)
Title: Improvements in or relating to a fuel element assembly for a nuclear reactor
IPC: G21C15/04
Filed: 1965-06-10
Abstract: 1,114,567. Fuel elements. ATOMIC ENERGY BOARD. 10 June, 1965, No. 47385/67. Divided out of 1,114,566. Heading G6C. A fuel element assembly includes a fuel container defining a fuel space, a coolant region in heat exchange relationship with the fuel space, fuel supply means, a fuel withdrawal passage from the fuel container, and cooling means adapted to cool the fuel space sufficiently to freeze coolant in the fuel space in at least one local zone to form a plug of frozen coolant to block off the passage. To remove spent fuel, the plug is melted as by heat from the hot parts of the fuel space. Preferably, two vertically spaced cooling zones are provided so that by alternately melting the plug of one zone while the other is still frozen the batchwise removal of spent fuel can be effected while continuously supporting the fuel on a plug of solid coolant. By varying the amount of fuel within the fuel space, a means of reactivity control is provided. In an emergency, the reactor could be shut down by discharging all the fuel elements into the spent fuel storage space. The fuel may consist of granules, pre. ferably in the form of spheres. The fuel element assemblies of this invention are preferably used in a heavy water moderated reactor as described in Specification 1,114,566.
Patent GB-1481920-A (GB)
Title: Process for the preparation of aromatic carbonates
IPC: C07C68/06
Filed: 1975-11-18
Abstract: 1481920 Diarylcarbonates ANIC SpA 18 Nov 1975 [25 Nov 1974] 47551/75 Heading C2C A process for producing a diarylcarbonate having the general formula where R, when present, is a substituent selected from alkyl, alkoxy, aryl, aryloxy and N0 2  groups comprises contacting an aryl alkyl carbonate having the general formula where R is as above and R<SP>1</SP> is a non-tertiary alkyl group, with a catalyst selected from Lewis acids and compounds of transition metals capable of producing Lewis acids. The reaction is generally carried out in the liquid phase, with or without a solvent, at a temperature preferably in the range from 25 to 360 C. and preferably at a pressure in the range from 0-1 to 100 absolute atmospheres.
Patent GB-1438838-A (GB)
Title: Apparatus for rearranging filter plugs or other rod-like articles
IPC: A24C5/32
Filed: 1973-10-12
Abstract: 1438838 Collecting rod-like articles in orderly arrangement HAUNI-WERKE KORBER & CO KG 12 Oct 1973 [13 Oct 1972] 47702/73 Heading A2C Apparatus for rearranging filter plugs or other rod-like articles of the tobacco-processing industry comprises a wheel 4 as a supply conveyor provided with holders 8 for rows of n coaxially aligned filter plugs, and another wheel 27 as a rearranging conveyor provided with n rows of holders for rearranged filter plugs, in which the axes of the supply conveyor and rearranging conveyor are spaced apart by a distance which is greater than the sum of the pitch circle radii of the two conveyors, the supply conveyor and rearranging conveyor are contra-rotatable and are interconnected by stationary guides 22 for the filter plugs and means are provided for transferring the filter plugs from the holders of the supply conveyor to between the guides, and means are provided for transferring the filter plugs from the guides to the holders of the rearranging conveyor. As shown in Fig. 2 projections 32a b c defining holders 31a b c respectively comprise a gently inclined edge 33a b c providing the leading edge of the preceding pocket and a steep edge 34a b c providing the trailing edge of the next succeeding pocket. Projections 32a extend beyond a pitch circle 36 of rearranging conveyor 27 whereas projections 32b c are approximately coincident with the pitch circle 36. Wheel 4 and rearranging conveyor 27 are so arranged with respect to each other that their axes are spaced' apart by a distance A which is greater than the sum of the radii of the pitch circles 36, 37 of rearranging conveyor 27 and wheel 4 respectively. In the vicinity of a transfer region 38, the guides 22 associated with wheel 4 have downwardly inclined edges 39 and project into recesses 41 of rearranging conveyor 27. In the same region stationary guides 42 associated with the rearranging conveyor 27 and arranged one behind the other each have an ascending edge 43 and project into recesses 44 of wheel 4. Edges 39, 43 define guide channels 46 with diameters corresponding to those of filter plugs 21a b c. Suction bores 47 may hold plugs into position during rotation of conveyors.
Patent GB-1246978-A (GB)
Title: Refractory linings for installations operating at very high temperature
Inventor: JAHAN CHRISTIAN
IPC: B01J19/02
Filed: 1968-10-09
Abstract: 1,246,978. Carbon. ESSO STANDARD SOC. ANON FRANCAISE. 9 Oct., 1968 [12 Oct., 1967], No. 47896/68. Heading C1A. [Also in Divisions C6-C7] A carbon lining is formed on reaction vessels and/or transfer lines operating at temperatures above 1350‹ C., e.g. fluid coking reactors, by carbonizing a liquid hydrocarbon having a Conradson carbon residue of at least 20%. A liquid hydrocarbon such as an atmospheric or a vacuum distillation residue is heated in an outer furnace to at least 500‹ C. and injected hot into the reactor to be lined.
Patent GB-1067550-A (GB)
Title: Sprocketless film developing machine
IPC: G03D3/13
Filed: 1964-11-25
Abstract: 1,067,550. Developing tanks. A. ARNOLD, [trading as ARNOLD & RICHTER KOMM GES]. Nov. 25, 1964 [Nov. 27, 1963], No.47962/64. Heading G2A. A film 9 is fed into a bath section 1 of a sprocketless film developing machine, the section containing various tanks holding various processing liquids, and thence moves round an adjustable tension roller 10, up and down several times between shafts (25), (26) Fig. 3 (not shown) (the first loop take-up device) extending across the width of a drying cabinet 2, through the cabinet up and down several times between shafts 75, 60 (the second loop take-up device), and between pressure rollers 65, 66 to the film winding drum 67. The diameter of the tension roller 10 can be altered by adjusting the periphery of an elastic insert ring (19) (Fig. 3) gripped between other parts (11), (12) of the roller (10), which is synchronously driven by the drive mechanism of section 1. The first loop take-up device is mounted in a slide 29 which is thus suspended by the film. As the slide moves up and down, it causes a rack (33) (Fig. 3) to move, rotating a gear (34) which controls a variable transformer which in turn energizes the drive motor (37) (Fig. 2) of the cabinet (2). The second loop takeup device is similar to the first, and varies a transformer 63 which in turn varies the voltage applied to a motor (64) (Fig. 2) which drives the drum 67. The upper film shafts of the cabinet are resiliently mounted in slide blocks to allow any film in the cabinet to shrink without showing strain marks even when the machine is not running.
Patent GB-1444020-A (GB)
Title: Controller for fluid pressure operated devices
IPC: B62D5/09
Filed: 1973-10-24
Abstract: 1444020 Power-assisted steering mechanism EATON CORP 24 Oct 1973 [24 Oct 1972] 48048/75 Heading B7H  In a hydrostatic steering controller comprising a valve sleeve 12 rotatably mounted in a bore 70 in a housing 14, and a valve spool 10 mounted for limited rotation in the sleeve 12, the arrangement in such that fluid pressure acts on balancing areas of the spool 10 and sleeve 12 to maintain the sleeve 12 centrally disposed in the bore 70 and to maintain the spool 10 centrally disposed within the sleeve. An inlet port 72 and two motor ports 74, 75 in the housing 14 each communicate with an annular groove 76, 78, 79 surrounding the sleeve 12. The inlet port 72 communicates with apertures 20 in the sleeve 12 which co-operates as described in Specification 1,444,019 with slots 18 in the spool 10 when the spcol is in a neutral position relative to the sleeve to provide a fluid flow path between the inlet port 72 and an outlet port 73. Balancing grooves 131 interspersed with the slots 18 are pressurised when the spool is rotated relative to the sleeve to centralise the spool in the sleeve and balance external pressure acting on the sleeve due to pressure building up in the grcove as the slots move out of register with the apertures 20. Axial feed slots 114 in the spool 10, which communicate with one of two sets of apertures 117, 119 in the sleeve 12 when the spool is rotated to direct pressure fluid to one of the motor ports 74, 75, are interconnected by circumferential grooves 122, 124 and define a pressurised area which centralises the spool and balances external pressure acting in the groove 78, 79 on the spool. The spool 10 has splines at one end 97 for connection to a steering wheel shaft, and the sleeve 12 is connected by a drive pin 102 and wobble shaft 57 to a gerotor pump/ motor unit B. The drive pin 102 is received by slots 103 in the spool 10 with sufficient clearance to allow limited relative rotation which is resisted by leaf spring 106. Slots 112, 114, 116 and 118 in the spool 10 and apertures 113, 117, 119 in the sleeve 12 co-operate upon relative rotation of spool and sleeve from a neutral position so that fluid from the inlet port 72 is directed to one of steering motor ports 74, 75 by way of the pump/motor unit B and fluid is returned from the other motor port 74, 75 to the outlet port 73.
Patent GB-1399419-A (GB)
Title: Pre-paint coating compositions
IPC: C23C22/74
Filed: 1973-10-17
Abstract: 1399419 Pre-paint coating composition DIAMOND SHAMROCK CORP 17 Oct 1973 [18 Oct 1972] 48404/73 Heading C4A A pre-paint coating composition for imparting corrosion resistance to metal substrates is prepared by (1) making a pulverulent zinc-free precursor constituent comprising an aqueous medium having a pH of 0À8 to 6 and containing a dibasic hexavalent chromium providing substance plus reducing agent for the Cr<SP>VI</SP> so provided, and (2) blending the precursor constituent with a pulverulent Zn containing component. The precursor may contain dibasic dichromate of Mg, Sr, Zn and/or Ca. The reducing agent may be a dicarboxylic acid containing succinimide, acrylamide, or aspartic acid. Tertiary alcohols and/or chlorinated hydrocarbons may be added to the aqueous medium.
Patent GB-1416569-A (GB)
Title: Low alloy steel composition
IPC: C22C38/12
Filed: 1973-10-19
Abstract: 1416569 Steel composition BABCOCK & WILCOX CO 19 Oct 1973 [22 Feb 1973] 48913/73 Heading C7A An alloy steel composition consisting, by weight, of:- 0.15 to 0.40% carbon 1.10 to 1.90% manganese 0.10 to 1.00% silicon 0 to 1.10% chromium 0.10 to 0.75% molybdenum up to 0.25% nickel up to 0.040% phosphorus up to 0.060% sulphur 0.0005 to 0.003% boron the balance being iron, has a minimum yield strength of 80,000 psi when quenched and tempered, or when normalized and tempered. The alloys are particularly suited to the production of pipes and tubes, having wall thicknesses up to 2 inches. The tubes may be spray quenched or tank quenched with water, oil quenched, or air quenched as in the normalizing treatment.
Patent GB-1111716-A (GB)
Title: Spark ignition circuits
Inventor: JUKES NORMAN ALFRED
IPC: F02P9/00
Filed: 1964-12-02
Abstract: 1,111,716. Ignition systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct.14, 1965 [Dec. 1964; July 7, 1965], Nos. 48947/64 and 28749/65. Heading F1B. A spark ignition circuit comprises a magnetic pick-up winding 11 associated with the starter gear ring 12, the starter gear ring producing pulses in the magnetic pick-up winding at a frequency proportional to engine speed, a capacitor, an integrating circuit 29, 31, 32 coupling the capacitor 34 to the magnetic pick-up winding, whereby a voltage proportional to engine speed is developed across the capacitor 34 and a control circuit coupling the capacitor to the primary winding 47 of the ignition coil, the control circuit being sensitive to the voltage across the capacitor and stopping current flow in the primary winding when the voltage is above a predetermined value. The control circuit may include a bi-stable circuit 33, 41 which normally occupies a first state but above a predetermined engine speed is driven to a second state in which it stops current flow through the primary winding. Current may flow through the bi-stable circuit when in its second state to energize a relay the contacts of which short circuit the primary winding. The bi-stable circuit may act when in its second state to break the circuit of the primary winding.
Patent GB-1485023-A (GB)
Title: Method and apparatus for stripping fibrous web from a rotating cylinder in a textile machine
IPC: D01G15/50
Filed: 1974-11-15
Abstract: 1485023 Fiber doffing arrangement E BONALUMI 15 Nov 1974 [11 Dec 1973] 49505/74 Heading DIN  A fibrous web is removed from a carding engine stripping roller 2 by means of apertures O arranged along helical paths through which impulses of pressurised air issue, the apertures coming into register during rotation with an internal stationary air chamber 9 whose mid line lies in the plane of the axis of the stripping roller 2 and an upper forwarding roller 20 of a roller pair 20, 30 to produce said impulses periodically and progressing along the stripping roller. The air supply may be humidified in order to eliminate electrostatic charges when synthetic fiber is being processed. The holes can be arranged more closely spaced at the centre part of the roller in order to separate the web into two parts, Fig.2 (not shown). The impulse frequency may be doubled by adding further apertures, Fig 4 (not shown). The air chamber 9 can be recessed into a stationary member 5, Fig. 1, or arranged to protrude from its surface, Fig. 3. Forwarding rollers 20, 30 are driven from the stripping roller by a chain 90, Fig. 5 to roller 20 and -gears between rollers 20 and 30 at the opposite end The spacing between roller 20 and 30 is adjustable by eccentric bushes, Fig. 8.