baber/WOPTO huggingface dataset:
Patent GB-268741-A (GB)
Title: Improvements in or relating to electrical switching mechanisms
IPC: H01H1/56
Filed: 1927-03-07
Abstract: 268,741. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Hill, L. H.). March 31, 1926, [Convention date]. Switches, quick-action.-Quick-action mechanism, especially for step-by-step tap-changing switches for transformers, comprises a pair of bridging arcuate contact-members 14 pivoted at 13 on a cross-head 12 sliding on a supporting structure 7, 6 pivoted at 5 so as to be capable of hand rotation. The head 12 carrying the pivot 13 slides on guide-rods 7 between the arcuate contact-members and is urged outwards by a spring 8 surrounding telescopic members on the head and on the support base 6 respectively. When the supporting structure is rotated, the arcuate contact-members react upon the forward fixed contact-pin 2, the contact-members swing round, as shown, without entirely leaving the preceding contact-pin 2, until the line of centres is passed whereupon the spring forces the supporting structure round and brings the arcuate contact-members rapidly into bridging engagement with the next pair of contact-pins.
Patent GB-1188596-A (GB)
Title: 7alpha,8alpha-Epoxyestra-1,3,5(10)-Trienes
IPC: A61K31/565
Filed: 1968-02-08
Abstract: 1,188,596. 7α,8α-Epoxysteroids. AYERST, McKENNA & HARRISON Ltd. 8 Feb., 1968 [14 Feb., 1967], No. 6349/68. Heading C2U. Novel compounds of formula wherein R is hydrogen or C 2-4  aliphatic acyl, R<SP>1</SP> is hydrogen, C 1-8  alkyl, C 5-7  cycloalkyl, tetrahydropyranyl, acyl, or X+-OSO 2 - (where X+ is an inorganic cation or a protonated organic base) and Y is C 1-4  alkyl, C 2-4  alkenyl, C 2-4  alkynyl, 2<SP>1</SP>-furyl, 3<SP>1</SP>-furyl, 21-thienyl, or 3<SP>1</SP>-thienyl, are prepared from the corresponding novel 17-oxo-compounds, wherein R<SP>1</SP> is hydrogen, C 1-8  alkyl, C 5-7  cycloalkyl or tetrahydropyranyl, by treatment with an appropriate organo-alkali metal compound or Grignard reagent, optionally followed, when R<SP>1</SP> is hydrogen, by 3- (or 3,17-) esterification or treatment with chlorosulphonic acid and organic and/or inorganic base to obtain the 3-sulphate esters. The compound 7α,8α- epoxy - 17α - ethynyl - estra - 1,3,5(10) - triene- 3,17#-diol and its 3-ethers of Formula I are alternatively prepared from 17α-ethynyl-estra- 1,3,5(10),7-tetraene-3,17#-diol or its 3-ethers by treatment with a peracid. The aforementioned 17-oxo-compounds are prepared from equilin or appropriate 3-ethers thereof by reaction with a peracid, the equilin 3-ethers being in turn obtained from equilin by known procedures. Interconversions of compounds of Formula I described include various 3 and/or 17 acylations and deacylations and 3-etherifications and de-etherifications, as well as the hydrogenation of a 17α-ethynyl group successively to a vinyl and ethyl group. The compounds of Formula I are stated to be implantation inhibitors and may be incorporated with acceptable carriers or diluents into pharmaceutical compositions suitable for oral and parenteral administration.
Patent GB-686783-A (GB)
Title: Improvements relating to work-piece conveyors
IPC: C21D9/00
Filed: 1950-03-15
Abstract: 686,783. Heat treatment furnaces. LUCAS FURNACES, Ltd., and BOUCHER, J. W. March 6, 1951 [March 15, 1950], No. 6480/50. Class 51 (ii) [Also in Group XXX] Workpieces are removed from a quenching tank e, at the discharge end of a rotary heat treatment furnace a, by an inclined rotary conveyer l. The workpieces, fed through an aperture r in a hopper q, are picked up by scoops s, so as to be-fed through central hole t into the furnace a and conveyed therealong by a helical rib c. The pieces fall down shoot d into quenching tank e and are delivered therefrom by the rotary conveyer. The conveyer comprises a receptacle I having a hollow sleeve f carried by a hollow trunnion g and carrying radial scoops k of U-cross-section by which the pieces are carried round. The pieces enter each scoop through a hole m therein and are discharged through holes n (in the scoop) and o (in the trunnion) so that they fall through said trunnion.
Patent GB-824660-A (GB)
Title: Improvements in or relating to diazotype printing
IPC: G03C1/54
Filed: 1956-03-01
Abstract: Diazonium salts and double salts are prepared by standard methods from N-(4-aminophenyl)-thiamorpholine and derivatives substituted in the phenyl nucleus by alkyl, alkoxy or halogen. Examples show (1) the preparation of the double zinc chloride diazonium salts from the 4-aminophenyl, 3-ethoxy-4-aminophenyl, 3-methyl-4-aminophenyl and 3-chloro-4-aminophenyl compounds; (2) the preparation of the double stannic chloride diazonium salt from the 2-methoxy-4-aminophenyl compound; and (3) the conversion of the zinc chloride salt of the 4-aminophenyl compound into the fluoborate and the double stannic chloride and cadmium chloride salts.  N - (4 - aminophenyl) - thiamorpholine is obtained from N-phenyl-thiamorpholine hydrochloride by treatment with sodium nitrite to give the N-(4-nitrosophenyl) compound and reduction of this with zinc; the solution of the hydrochloride is then ready for diazotization to form the double zinc salt directly. N-(4-amino-3-ethoxyphenyl) - thiamorpholine, N - (4 - amino - 3 - methylphenyl) - thiamorpholine and N - (4 - amino - 3 - chlorophenyl) - thiamorpholine are made similarly via the nitroso compounds.  In the preparation of N - (4 - amino - 2 - methoxyphenyl) - thiamorpholine Raney nickel is used for reduction of the nitroso compound.  The amino compounds can also be obtained by coupling the N-phenyl-thiamorpholines with diazo compounds to give azo dyestuffs and converting the latter.  N - (3 - ethoxyphenyl) - thiamorpholine is made from N - (di - b  - chloroethyl) - 3 - ethoxyaniline and sodium sulphide. N-(3-methylphenyl)-thiamorpholine, N - (3 - chlorophenyl) - thiamorpholine and N-(2-methoxyphenyl)-thiamorpholine are obtained similarly.
Patent GB-1092168-A (GB)
Title: Transformation of phosphorus compounds obtained as by-products
IPC: C01B25/24
Filed: 1966-02-15
Abstract: Compounds containing phosphorus having a valency lower than 5 and obtained as waste products or by-products are transformed into products containing phosphorus in pentavalent form by introducing the compounds into a flame fed with elementary phosphorus and a gas containing free oxygen, the oxygen being introduced at a rate in stoichiometric excess of the total phosphorus introduction rate.  The weight of the phosphorus compounds may be up to 50% of the weight of elementary phosphorus fed to the flame.  The phosphorus compounds may be used in liquid form (as a melt or as a solution or suspension in an aqueous or organic solvent or suspension medium), the elementary phosphorus may be employed in molten form and the two may be mixed together before they reach the flame.  The liquid compounds may alternatively be sprayed or injected centrally or from the outside into the phosphorus flame such that the total quantity thereof is introduced into the flame. The phosphorus compounds may be used in gaseous form.  The process is applicable to mineral and organic phosphites, phosphonates, hypophosphites, phosphorous acid and phosphenes which may be contaminated with non-phosphorus-containing compounds.  Examples describe the treatment of Na2HPO3, NaH2PO2 and mixtures of these, organic phosphite waste (including methyl phosphites) and H3PO3 waste.  The principal product of combustion according to the invention is stated to be P4O10 which may be transformed in a conventional manner into phosphonic or polyphosphonic acids or the alkali metal salts of such acids.
Patent GB-308877-A (GB)
Title: Improvements in or relating to pumps
IPC: F04C2/18
Filed: 1928-03-02
Abstract: 308,877. Drysdale & Co., Ltd., and Drysdale, W. March 2, 1928. Driving-gear; casings; force-feed lubricating.- A pumping unit adapted to provide two services of lubricating oil comprises a centrifugal pump a adapted for dealing with the medium-pressure oil supply, this pump being provided with a separating chamber 4 and float gear 6 of the general nature of, and functioning as, that described in Specification 170,494, the impeller being provided with a vertical shaft e that drives a horizontal shaft h through worm gearing d, g, the shaft h having a rotary pump to deal with the high-pressure oil supply and an air pump adapted to withdraw the air from the separating chamber. The pumps for the high-pressure oil supply and for withdrawing air are of the intermeshing toothed wheel type, as shown in Fig. 3. An electric motor c drives the unit. The oil supply enters at x and passes over a weir z into the suction passage which leads to the impeller a. Air which collects in the chamber 4 is withdrawn by the air pump through a float-controlled valve device 6 as described in Specification 170,494. A pipe 5 leads to the air pump, and a pipe 7 forming the suction to the high-pressure pump is connected to the discharge pipe 8 of the medium-pressure pump. Specification 178,733 is referred to in the Provisional Specification.
Patent GB-1080083-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P3/045
Filed: 1966-02-16
Abstract: 1,080,083. Electromagnetic pulse generators. FORD MOTOR CO. Ltd. Feb. 16, 1966 [April 14, 1965], No. 6759/66. Heading H2A. [Also in Division F1] The Fig. shows a pulse generator for controlling an ignition system (see also Division F1). The generator includes a stator 122 that has an annular permanent magnet 123 constructed, for example, of barium titanate. An annular magnetic flux gate element 124 is positioned radially outward from the permanent magnet 123. The rotor 145 includes a rotatable plateshaped armature 146 that has a number of depending teeth 147 that correspond in number to the number of teeth on the plates 131 and 132. The arrangement and shaping of the teeth is described with reference to Figs. 8 and 9 (not shown).
Patent GB-1213171-A (GB)
Title: Polymerisation process
Inventor: COKER JAMES NEWTON
IPC: C08F214/26
Filed: 1968-02-12
Abstract: 1,213,171. Tetrafluoroethylene/isobutylene copolymers. E. I. DU PONT DE NEMOURS & CO. 12 Feb., 1968 [28 Feb., 19671, No. 6815/68. Heading C3P. A tetrafluoroethylene/isobutylene copolymer containing 53-67 weight per cent copolymerized tetrafluoroethylene, 32-44 weight per cent copolymerized isobutylene and 0-14 weight per cent of a further copolymerized monomer, the percentages being based on the total copolymerized monomer content of the copolymer, having a melt index of 1 to 4,000 and containing hydroxyl groups may be prepared by copolymerizing tetrafluoroethylene, isobutylene and, if desired, a further copolymerizable monomer in an aqueous medium containing an emulsifier for isobutylene, a persulphate initiator, a sulphite or bisulphite forming a redox system with the persulphate, a copper-containing accelerator for the redox system, and a phosphate regulator for the accelerated system, the mole ratio of tetrafluoroethylene to isobutylene being within the range of from 0À5: 1 to 2À5: 1, the proportions of tetrafluoroethylene, isobutylene and, when present, the further copolymerizable monomer being selected to provide a copolymer containing the monomers in the stated proportions and the copolymerization being effected for a length of time to give a copolymer of the stated melt index. In the examples tetrafluoroethylene, isobutylene and acrylic acid are copolymerized in the presence of t.-butanol, water, benzoyl peroxide, ammonium perfluorocaprylate, Na 2 HPO 4 , (NH 4 ) 2 S 2 O 8 , NaHSO 3 , CuSO 4 , Na 2 SO 3 , sodium lauryl sulphate, sodium tetradecyl sulphate, cetyl trimethyl ammonium bromide, fatty alcohol ethylene oxide condensation product, NaH 2 PO 4 , H 3 PO 4 , ethyl benzene and the disodium salt of ethylene diamine tetracetic acid. Metal salts of the carboxyl-containing polymers may be prepared by treating with Ca, Zn, Cr, Mg, Pb, Co, Mn, Cu, K, Na and Ce acetates and Al[OCH(CH 3 ) 2 ] 3 . A non-carboxyl-containing product may be heated with a carboxyl-containing polymer to give a cured product of lower melt index.
Patent GB-722543-A (GB)
Title: Fluorescent heterocyclic compounds
IPC: D06L4/60
Filed: 1952-03-17
Abstract: Textile materials are brightened by treatment with sulphonated azoles of the formula <FORM:0722543/IV (c)/1> or <FORM:0722543/IV (c)/2> where R and R1 are aryl or aryl-vinyl groups, Y is O or S, n is 1 or 2 and m is 1, 2 or 3.  Thus cotton may be treated with an aqueous solution of the sodium salt of sulphonated 1 : 4-di-(51-phenyl - oxazolyl - 21) - benzene or 1 : 4 - di - (51 - phenyl - thiazolyl - 21) - benzene, and wool with the sodium salt of sulphonated 2-styryl - 5 - phenyloxazole (with acetic acid) or 2 - b  - naphthyl - 5 - phenylthiazole.  A further example describes the treatment of perlon with the sodium salt of sulphonated 2-b -naphthyl-5-phenyloxazole and formic acid.ALSO:The invention comprises sulphonated azoles of the formul  <FORM:0722543/IV (b)/1> and <FORM:0722543/IV (b)/2> where R and R1 are aryl or aryl-vinyl groups Y is O or S, n is 1 or 2 and m is 1, 2 or 3.  These are prepared by treating aminoketones R-CO-CH2-NH2 with mono- or di-basic acids R-COOH or R-(COOH)2 or their halides or amides, ring-closing the resulting acylamino-ketones with a condensing agent to give oxazoles, if desired converting into thiazoles by means of phosphorus sulphide, and finally sulphonating. In the examples: (1) o -aminoacetophenone is condensed with terephthaloyl chloride to give terephthaloyl bis-N-phenacylamide, the latter ring-closed with sulphuric acid to 1 : 4-bis-(51-phenyl-oxazolyl-21)-benzene and finally sulphonated; (2) the bis-amide of (1) is treated with phosphorus pentasulphide to yield 1 : 4-bis-(51-phenyl-thiazolyl-21)-benzene and the latter sulphonated; (3) 2 : 5 - diphenyloxazole is sulphonated; (4) 2 : 5-diphenylthiazole is sulphonated; (5) o -cinnamoylamino-acetophenone is heated with sulphuric acid to give the sulphonic acid of 2 - styryl - 5 - phenyloxazole; (6) b -naphthoyl chloride and o -aminoacetophenone give o -(b -naphthoylamino)-acetophenone which is heated with sulphuric acid, yielding sulphonated 2-(b -naphthyl)-5-phenyloxazole; (7) 2-(b -naphthyl)-5-phenylthiazole is obtained in an analogous way and then sulphonated.ALSO:Soaps are brightened by addition of sulphonated azoles of the formula <FORM:0722543/III/1> where R and R1 are aryl-vinyl groups, y is O or S, n is 1 or 2 and m is 1, 2 or 3.
Patent GB-878248-A (GB)
Title: Warp knitting machine
IPC: D04B23/10
Filed: 1959-02-27
Abstract: 878,248. Knitting-machines. SDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVI. Feb. 27, 1959 [Feb. 28, 1958], No. 6951/59. Class 74 (2). [Also in Group VII] A warp machine for drawing chain stitches through a fleece fabric 1 has the needles 3 disposed downwardly at an angle so as to pass through the fleece at right-angles to form the stitches.
Patent GB-356658-A (GB)
Title: Process for recording acoustic vibrations
IPC: G11B11/00
Filed: 1930-03-03
Abstract: 356,658. Photographic films. SOC. INDEPENDANTE DE T•L•GRAPHIE SANS FIL, 76, Route de Chatillon, Seine, France. March 3, 1930, No. 6966. Convention date, March 2, 1929. Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] A film upon which sound is recorded by electrolytic decomposition of the sensitive salt contained in the emulsion, instead of by light action, is coated with a gelatine emulsion containing silver bromide and an accelerating agent such as stannous chloride in aqueous solution together with a reducer such as genol or hydroquinone.
Patent GB-491860-A (GB)
Title: Improvements in or relating to cathode ray visual tuning devices
IPC: H01J31/14
Filed: 1937-03-10
Abstract: 491,860. Advertising on indicators for radio receivers. FERRANTI, Ltd., and CHILCOT, A. L. March 10, 1937, No. 7005. [Class 3 (ii)] [Also in Group XL] A trade mark, design, or other sign is illuminated whenever the cathode-ray tuning-indicator of a radio.receiver is switched on; the sign may be formed by a perforated shield 5, Fig. 2, a stamping 10, Fig. 3, or by a bent wire. The amount of the sign illuminated may vary with the tuning condition. The sign may be integral with the anode 4 of the indicator, which has a luminescent coating excited by electrons from a cathode under control of a nickel electrode connected to, the anode of a triode forming part of the receiving set. The sign carries an extension 12 to obscure light from the cathode. Specification 443,602, [Group XL], is referred to. According to the Provisional Specification, the sign may be formed by depositing carbon on the luminescent material or by arranging this material in stencil form on the anode.
Patent GB-1172653-A (GB)
Title: Improvements in or relating to Driving Means for Agitators.
Inventor: PRACHT PAUL
IPC: B01F15/00
Filed: 1968-02-13
Abstract: 1,172,653. Agitators; driving mechanism. GERHARD KESTERMANN ZAHNRADER- und MASCHINENFABRIK K.G. 13 Feb., 1968, No. 7073/68. Heading B1C. [Also in Division F2] Driving means for an agitator comprises a driving shaft 2 and an agitator shaft 3 connected by a separable coupling 7, a bearing 8 and a gland 9 located in a housing 10 of a casing 1; the driving shaft, coupling, bearing and gland can be withdrawn as a unit from the agitator shaft. As shown the agitator shaft 3 has keyed thereon a gear 17 in mesh with an internally toothed gear 16 clamped between an flange 13 integral with the driving shaft 2 and a sleeve 14 whereon is mounted the bearing race 27 and the gland 9. The bearing race 27 is located in a removable bush 26 in the housing web 25, and by release of the bolts 37 the shaft 2 can be lifted together with the gears 16, 17, sleeve 14, bush 26, bearing and gland, see Fig. 2 (not shown). There may be lifting means 11, 12, which may be a screw and nut or a hydraulic cylinder. The gland 9 is shown as a stuffing box seal on the left side, and a slip ring seal on the right side, of Figs. 1 and 2. In another embodiment, see Figs. 3-5 (not shown) the driving shaft, flange 13 retains a captive nut (40) rotatable on a screw (38) passing through an axial bore (39) in the driving shaft and secured by a pin (44) in the end of the agitator shaft. Rotation of the nut lifts the driving shaft sleeve, bush, bearing and gland until the pin (44) is accessible and can be disconnected.
Patent GB-434668-A (GB)
Title: Improvements in and relating to control systems for dynamic braking of electric motors
IPC: H02P7/34
Filed: 1934-03-06
Abstract: 434,668. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, LIDDIARD, H. W. C., Bulawayo, Dunchurch Road, Rugby, and PETCH, T. H., The Laurels, Claybrook Parva, Leicestershire. March 6, 1934, No. 7146. [Class 38 (iii)] Varying E.M.F. ; field control.-In a dynamic braking system for a motor speed controlled by varying the field 3 of its supply generator, the motor field 1 is supplied from an exciter 2 having a self-excited field winding 7 which is insufficient in itself to build up, and an additional field winding 8 supplied from a second exciter 4 which also supplies the generator field, so that on opening the field circuit of the second exciter, as for an emergency stop, the rate of decay of the voltage of the first exciter always lags behind that of the second exciter and braking current flows in the generatormotor circuit. Regulators 5, 9, 10, and 13 are provided for the generator and exciter fields, and the rate of decay of the field 11 of the exciter 4, when a switch 12 is opened, may be determined by a small machine 14 connected across the field 11 and driving a flywheel 15, the decay characteristic being adjusted by an air vane, oil damper, or friction brake. Alternatively the field 11 may discharge through a condenser or resistance. A brake solenoid circuit 16 is effective to trip main brakes at a predetermined voltage across the exciter 2.
Patent GB-393306-A (GB)
Title: Improvements in or relating to rotary retorts, furnaces and similar apparatus
IPC: C10B1/10
Filed: 1931-09-17
Abstract: 393,306. Rotary furnaces or retorts. BRITISH COAL REFINING PROCESSES, Ltd., 3, Central Buildings, Westminster, and SALERNI, P. M., 23, Carlton House Terrace, St. James's, London. Sept. 17, 1931, Nos. 7219/33, (divided on 393,297), and 26496/31 and 7220/33, (divided on 393,305). [Classes 51 (ii) and 55 (i).] A rotary retort or furnace is mounted between stationary heads so that there is no sliding contact between the moving parts, the escape or entry of gas being prevented by gaseous seals in which labyrinthine plates are employed. The retort 1 may comprise annular spaces 4, 14 in which heating and cooling gases respectively are circulated, so that the exterior of the retort may be cooled. The inner drum 2 may be supported by the outer and cool drum 1 by resilient means, as described in Specification 393,305. A flexibly supported chain of scrapers E of the kind described in Specification 393,303 may be employed, and the apparatus is suitable for use in carrying out the process described in Specification 393,297. A stationarv head B at the end through which the charge is fed through a conduit 15, has an outlet 16 for the earlier formed distillates, and the hot gases from the heating space 4 of the retort pass into an annular chamber 17, from which they pass through ducts 37 arranged in a water sealed connection with a flue 39. A head C at the discharge end contains an annular chamber 19 fed with heating gases from ducts 32 through nozzles directing them into a heating space 4 in the inner element. The cool flue gas is withdrawn from the space 14 between the inner and outer drum elements into an annular passage 20 leading to outlets 31. The gaseous seals are provided by maze plates 27 adjacent the heating passage, plates 28 adjacent the cool gas passage, and at 29, 30 to prevent escape of distillates or heating gases, or the mixing of these gases. The heads B, C are flexibly supported, and are mounted on spring supports 23 capable of moving freely in all directions. A gas mixing chamber is provided between the combustion chamber and the retort, in which chamber cool flue gas is used to dilute the hot gases. A thermostat is used to regulate the supply of air and fuel gas to the combustion chamber to keep the temperature constant.
Patent GB-120343-A (GB)
Title: Endless Track Tractors.
Inventor: LINN HOLMAN HARRY
IPC: B62D55/02
Filed: 1918-04-30
Abstract: 120,343. Linn, H. H. April 30, 1918. Endless-trackvehicles. - An endless-track tractor comprises a frame 6, Fig. 1, to which forked members 34 are pivoted, and track blocks 35 pivoted to the fork members. Antifriction rollers 36 having oil-treated wooden centres and mounted on chaim 37, ride round the track blocks and bear on the lower runs of the endless tracks 8. The tracks comprise links 23, Fig. 3, having flanges 28 forming guides for the loadsupporting rollers 36 and provided at one end with pins 25 riding in sockets in the next link. The sockets are provided with grease cups. Detachable gripping members are provided. A harvester &c. may be driven from a crank-shaft 42 driven from the main shaft.
Patent GB-224150-A (GB)
Title: Improvements in shaft couplings
IPC: F16D3/68
Filed: 1924-03-21
Abstract: 224,150. Simms, F. R., and Simms Motor Units (1920), Ltd. March 21, 1924. Universal couplings.-A disc on the end of each shaft has a ring of teeth or projections engaging recesses in a rubber or other elastic disc between the shafts, the recesses h in the elastic disc g being formed completely through the disc. The shafts are thus brought closer together and the elasticity of the joint is increased. Radial recesses i may be formed in the periphery of the disc g between the recesses h and a spring strip j may be fitted around the periphery of the disc and within the radial recesses.