baber/WOPTO huggingface dataset:
Patent GB-1144103-A (GB)
Title: Measuring system
Inventor: COATES JAMES ENOCH
IPC: G01B7/14
Filed: 1967-10-31
Abstract: 1,144,103. Selective signalling. ROLLSROYCE Ltd. 31 Oct., 1967, No. 49319/67. Addition to 1,089,505. Heading G4H. The displacement of one member relative to another is measured by rolling a roller attached to the first member across the second and counting pulses produced photoelectrically from an apertured disc coupled to the roller. The disc is sensed by quadrature spaced cells whose outputs 51, 52, Fig. 3, are shaped 55, 56, 59, 60 and applied to gates 66, 67 to produce forward F or reverse R pulses, four pulses per aperture, which are passed via monostables 71, 72 to the add and subtract inputs of a reversible counter. Whenever the counter registers zero an AND gate 89 is opened to bias diodes 86, 87 so that the next pulse that occurs is allowed to set a sign bistable 82 in accordance with whether it is a forward or a reverse pulse. The sign bistable 82 controls a gate 77 so that when a plus sign is indicated forward pulses are routed to the add input of the counter and reverse pulses to the subtract input, and when a minus sign is indicated forward pulses are routed to the subtract input of the counter and reverse pulses to the add input. In this way the count indicates the distance the movable member has moved away from a datum position and the sign bistable indicates the direction. A complete circuit diagram of the block diagram shown in Fig. 2 is given using conventional transistor techniques (Fig. 3, not shown).
Patent GB-1147667-A (GB)
Title: Improvements in or relating to mass spectrometers
Inventor: MAI HERMANN
IPC: H01J49/02
Filed: 1966-11-03
Abstract: 1,147,667. Mass spectrometers. FRIEDRICH-SCHILLER-UNIVERSITAT. 3 Nov., 1966, No. 49375/66. Heading H1D. The ion detecting arrangement in a mass spectrometer comprises an electrode 3 for converting the ion spectrum into a secondary electron spectrum and an electron-sensitive plate or film 5 on to which the electrons are projected in the magnetic field of the spectrometer polepieces 2. One or more secondary electron emitting foils 8 may be provided in front of the electron-sensitive plate or film 5 and the foils may separate a chamber containing the plate or film 5 from the analyser chamber so that the two chambers may be held at different pressures. Slits may be provided in the electrode 3 for the passage of the intense lines of the ion spectrum to Faraday cages or secondary electron multipliers 9.
Patent GB-1338378-A (GB)
Title: Liquid mixing devices
IPC: B01F15/02
Filed: 1971-01-06
Abstract: 1338378 Jet pumps WADDINGTON & DUVAL (HOLDINGS) Ltd 6 Jan 1971 [8 Oct 1969] 49411/69 Addition to 1045157 Heading F1E [Also in Division B1] The apparatus has a Venturi 20 having a secondary liquid inlet 26 to its throat 25, and a by-pass passage 14, having a common primary liquid inlet chamber 22; a valve 27 in one position allows primary liquid to pass through the Venturi so that secondary liquid is induced, and in the other diverts all the primary flow through the by-pass, the modification to the apparatus of the main specification being the absence of means to control the cross-section of the by-pass. The rate of flow of the secondary liquid may be adjusted by a screw 46. The valve spring 28 is enclosed in a liquidtight housing 32.
Patent GB-1444430-A (GB)
Title: Process for isomerizing and disproportionating a tall oil product
IPC: C07C57/03
Filed: 1973-10-24
Abstract: 1444430 Isomerizing and disproportionating tall oil products OULU OSAKEYHTIO 24 Oct 1973 [27 Oct 1972 8 June 1973] 49612/73 Heading C3R A method for isomerizing and disproportionating tall oil products, comprises contacting them with sulphur in an amount from 0À1 to 5% by weight and with iodine in an amount from 0À01 to 0À4% by weight at 180 to 250 C. until fatty acids containing the group are removed from the product. The sulphur and iodine may be applied simultaneously or in two successive reactions. In examples tall oil rosin, Chinese gum rosin acid, gum rosin, tall oil fatty acid, tall oil fortified with fumaric acid and crude tall oil are contacted with sulphur and iodine.
Patent GB-1512909-A (GB)
Title: Unsymmetrical bis-carbamate compounds
IPC: C07C313/32
Filed: 1976-11-30
Abstract: The compounds of formula I, in which R and R' are alkyl groups and R1 and R2 are alcohol or oxime residues, R1 being different from R2, are obtained by successively reacting the compounds of formulae R1OH and R2OH with the fluoride of the corresponding biscarbamic acid, in the presence of an acid acceptor. The compounds of formula I are insecticides, acaricides and nematocides which are distinguished by a low toxicity towards mammals. <IMAGE>
Patent GB-1160706-A (GB)
Title: Electromagnetic Viscometer
Inventor: GAETA FRANCESCO SAVERIO
IPC: G01N11/02
Filed: 1966-11-08
Abstract: 1,160,706. Viscometers. EUROPEAN ATOMIC ENERGY COMMUNITY. Nov. 8, 1966 [Nov.25, 1965], No.49930/66. Headings G1N and G1S. [Also in Division H2] In a fluid-flow viscometer, an electrically conductive fluid is caused to flow round an annular channel, Fig. 2, as a result of the Lorentz force produced in it by the action of a vertical magnetic field H, between polepieces 12, 13, see also Figs.3, 4(not shown), on the ions in the fluid moving between two cylindrical electrodes 3, 4, arranged on the side walls of the channel and connected to a D.C. supply. The viscosity of the fluid is determined from measurements of the Lorentz force on the fluid and its velocity of flow. If the fluid, whose viscosity is to be measured, is electrically conductive it is merely placed in the channel and the above measurements made. If the fluid is electrically non-conducting or it is preferred not to produce electrolysis in the liquid, a non-miscible heavier electrically conductive liquid is placed in the bottom of the channel to cover the electrodes, which extend only part way up the channel side walls. This liquid may then be covered by a thin layer of a non-miscible, non-conductive liquid if the liquid under investigation is conductive or miscible with the heavier liquid. A non-miscible liquid of known viscosity is first placed above the heavier liquid or liquids and the velocity of its free surface measured. This liquid is then replaced by the same depth of the liquid under investigation, and the velocity of its free surface is measured for the same Lorentz force, the difference between the two velocities giving an indication of the relative viscosity of the liquid under investigation. Measurement of force: - The Lorentz force may be measured directly from a measurement of the current flowing in the channel and the applied magnet field, or may be determined by measurement of the torsion applied to a wire 8, Fig. 2, from which the channel is suspended. Measurement of velocity:- The velocity of the free surface of the liquid may be determined by measurement of the torsion applied to a wire on which a flat ring of polystyrene sheet, floating on the surface of the liquid at the centre of the channel, is suspended, the movement of a pointer on the ring over a scale on the channel giving an indication of the velocity. Alternatively the velocity of rotation of a closed plastics tube of radius equal to that at the centre of the channel and weighted down by a wire so that it just floats at the surface of the liquid, may be measured, its velocity being taken to be equal to that of the liquid. Finally, the velocity of small particles suspended in the liquid may be measured to give an indication of the velocity of the liquid.
Patent GB-500196-A (GB)
Abstract: 500,196. Quinoxalines. SOC. OF CHEMICAL INDUSTRY IN BASLE. July 30, 1937, Nos. 21155 and 21156. Convention dates, Aug. 1, 1936 and July 12, 1937. [Class 2 (iii)] Quinoxaline derivatives are prepared by reducing o-nitraniline-alpha-fatty acids containing in the nucleus an alkoxy or aralkoxy substituent. Instead of the acids, their esters, amides or nitriles may be employed. The reduction may be effected by means of iron or zinc and an acid or by catalytically-activated hydrogen. Following reduction, ring closure takes place with elimination of water or alcohol; the latter may be assisted by dry heating the intermediate product or by heating in an aqueous aoid medium or in a high-boiling solvent. The products are useful therapeutically. According to the examples: (1) 2-oxy-3 : 4-dihydro-7-ethoxy-quinoxaline is obtainedby reducing o-nitro-p-ethoxyphenylglycine, prepared from o-nitro-p-ethoxyaniline and bromacetic acid, with hydrogen in the presence of nickel and heating the resulting o-amino compound in feebly acid aqueous solution; in a similar manner are prepared 2 - oxy - 3: 4 - dihydro - 4 - aceto - 7 - ethoxyquinoxaline, 2-foxy-3 : 4-dihydro-4-methyl-7- methoxyquinoxaline, 2 - oxy - 3 - ethyl - 3 : 4- dihydro - 6 - ethoxyquinoxaline, 2 - oxy - 3 : 4- dihydro - 7 - propyloxyquinoxaline and 2 - oxy- 3 : 4-dihydro-7-benzyloxyquinoxaline; (2) the same product as in (1) is formed when o-aminop-ethoxyphenylglycine is heated to boiling in tolueno solution. The Specification as open to inspection under Sect. 91 also describes the treatment of starting materials containing an alkenyloxy substituent and refers to the production of 2-oxy-3 : 4- dihydro-7-allyloxyquinoxaline. The treatment of anils, e.g. o-nitro-alkoxy-anilpyroracemic acids, is also mentioned. This subject-matter does not appear in the Specification as accepted. o-Nitroaniline-alpha-fatty acids, esters, or nitriles, containing alkoxy and aralkoxy substituents are obtained by (1) treatment of the correspondingly substituted o-nitranilines with alpha-halogen-fatty acids or esters, e.g. chloracetic, bromacetic, alpha-bromopropionic and alpha-bromobutyric acids or bromoacetic acid ethyl ester, or with a dihalogen vinyl ether, or with a diazo-acetic acid ester, or with formaldehyde-cyanohydrin; (2) interaction of alkoxy- or aralkoxy-substituted o-halogennitrobenzenes with alpha-aminofatty acids ; or (3) by starting with the corresponding non-nitrated aniline or halogen-benzene and introducing the nitro group subsequently by nitration.
Patent GB-1359646-A (GB)
Title: Manufacture of furniture primarily chairs and stools
IPC: B29C45/26
Filed: 1971-10-19
Abstract: 1359646 Moulded furniture M O ROWLANDS 19 Oct 1971 [21 Oct 1970] 50065/70 Heading A4H [Also in Division B5] A chair, stool, table or other article of furniture having a portion 11 which has a generally plane upper surface and which is supported on legs 12, 13, is made in a mould comprising two parts Y, Z which are movable towards and away from one another in a direction substantially parallel to the general plane of the portion 11 or making an angle of up to aprroximately 45 degrees therewith. In the example shown the article is a stackable chair having channel shaped legs 12, 13 the rear pair being more widely spaced than the front pair. Rails 14 of inverted channel section join the front and rear legs. Inserts of metal or plastics for reinforcement or coupling purposes may be incorporated in the article.
Patent GB-1476079-A (GB)
Title: Planar magnetron sputtering apparatus
IPC: C23C14/36
Filed: 1975-12-08
Abstract: 1476079 Sputtering apparatus AIRCO Inc 8 Dec 1975 [16 Dec 1974] 50188/75 Heading C7F In a sputtering apparatus in which closed loops of flux are provided over the target 10 of e.g. Cu or Ti by magnets 11 or electromagnets, a variable auxiliary magnetic field is provided e.g. by coils 36 so that the erosion region on the target is continuously moved across the target. The anode, Fig. 2 (not shown) may be parallel to one side of the target 10. The cathode assembly is shielded by a member 21 and the target may be cooled by passing water through conduits 32, 33.
Patent GB-1451900-A (GB)
Title: Quinolin-2-1h-ones
IPC: C07D215/22
Filed: 1973-10-30
Abstract: 1451900 Derivatives of 2(1H)quinolinone SANDOZ Ltd 30 Oct 1973 50303/73 Heading C2C The invention comprises compounds of formula and their alkali metal salts (wherein R 3  is H, F, Cl, Br or C 1-4  alkoxy, R<SP>1</SP> 4  is C 1-8  alkyl and R 9  is C 1-4  alkyl), and a process for making them by reacting the corresponding isotoic anhydride with MCH(CO 2 R 9 ) 2 , M being an alkali metal. These compounds may be hydrolysed and decarboxylated, and the thus-formed 1-alkyl-4- hydroxy - 2(1H)quinolinones may be converted to the corresponding ethers. Therapeutic compositions comprise 4-alkoxy-1- alkyl-2(1H)-quinolinones, which are said to have minor tranquillizing activity.
Patent GB-1163289-A (GB)
Title: Improvements in or relating to Organotin Compounds
IPC: C07F7/22
Filed: 1966-11-10
Abstract: 1,163,289. Herbicide comprising organotin compounds. UNITED STATES BORAX & CHEMICAL CORP. 10 Nov., 1966 [15 Nov., 1965; 11 Aug., 1966 (2)], No. 50496/66 Heading A5E. [Also in Division C2] A herbicidal composition comprises a compound of formula R 3 Sn.O.CO.R<SP>1</SP>, where each R is an aryl, aralkyl or aryl group and R<SP>1</SP> is an alicyclic group, and a carrier therefor. Preferred R groups are C 1 -C 8  alkyl groups and monocyclic aralkyl and aryl groups, and nuclear substituted derivatives thereof. R<SP>1</SP> is preferably a hydrocarbon with 3-8 carbon atoms in the ring or a polycyclic bridged hydrocarbon having up to 12 carbon atoms in the rings. R<SP>1</SP> may be ring substituted. Numerous examples of suitable R 8 .Sn.O.CO.R<SP>1</SP> compounds are given. The carrier may be a pulverulent solid e.g. lime, talc, clay, bentonite, calcium chloride, verniculite or calcium carbonate, or a liquid e.g. water, kerosene, alcohols ,diesel oil, xylene, benzene or glycols. A surface active agent to aid dispersion, emulsification or coverage may be added and suitable additives are listed. Other additives which may be used are humectants, oils, contact agents and other herbicides, e.g. sodium chlorate, sodium borate, 2,3,6-trichlorobenzyloxypropanol, chlorophenoxyacetic acid, trichlorobenzoic acids, substituted ureas, uracils, and carbamates. The composition may be in concentrated form i.e. containing about 5 to about 99% by weight of the organotin compound, and may be diluted, e.g. with water, when used. The organotin compound is supplied at about 0.5 to 25 pounds/acre to be effective and may be used as a pre-emergence or post-emergence herbicide. It may be used ,to kill weeds such as Johnson grass, crabgrass, ryegrass, bindweed, millet, velvet leaf, wild ,oats, water grass, foxtail, pirweed, peas, cucumbers, lamb's quarter, ragweed and mustard whilst preserving peanuts, zoybeans, sorghum, rice, barley, oats or maize.
Patent GB-1364096-A (GB)
Title: Process for the production of methanol and catalyst therefor
IPC: C07C29/151
Filed: 1971-11-01
Abstract: 1364096 Methanol synthesis catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 1 Nov 1971 [2 Nov 1970 21 May 1971] 50649/71 Heading B1E [Also in Division C2] Methanol synthesis catalyst comprising oxides of copper and of zinc and of "didymium" (defined as any rare earth metal mixture free from a substantial amount of cerium and containing at least two other rare earth metals in a naturally-occurring ratio) may be prepared by a procedure wherein copper, zinc and "didymium" are co-precipitated in the form of compounds readily convertible to oxides, for example hydroxides and/or basic carbonates and/or carbonates, from solution, for example nitrate solution, and the resulting co-precipitate is collected, washed, dried, calcined at a temperature of from 200 to 400C to convert the convertible compounds into oxides, shaped for example by pelletizing under pressure using graphite as lubricant and, optionally, treated with hydrogen or a mixture of hydrogen and carbon monoxide. The catalyst maycontain copper oxide and zinc oxide in a copper:zinc weight ratio of from 1:0.05 to 1:10 and from 1 to 25 weight per cent of "didymium" oxide, calculated as metal; the catalyst additionally may comprise inert support material, for example silica or alumina.
Patent GB-1494096-A (GB)
Title: Magnetic head electromagnetically switchable between a recording and a playback mode
IPC: G11B5/245
Filed: 1974-11-22
Abstract: 1494096 Magnetic heads AMPEX CORP 22 Nov 1974 [17 Dec 1973] 50680/74 Heading G5R A magnetic recording and playback head has a magnetic core with a transducing gap and at least two possible paths for magnetic flux, each path including said gap and a respective magnetic core legs 11, 12, elastically separate transducing coils 15, 16 on respective said legs 11, 12, and selectively operable means for electromagnetically preventing substantially any net flow of signal-carrying magnetic flux through any selected leg 11, 12 so that the transducer is operable in a plurality of different modes, including a recording mode and a playback mode, in each of which a respective coil on a leg other than a said selected leg is magnetically coupled to said gap. The magnetic core may be fabricated as an integral unit. However, an audio signal recording and playback head may comprise ferrite pole-pieces with a glass-filled transducing gap therebetween, a ferrite leg 12 carrying a low impedance record coil 16, and a permalloy leg 11 carrying a high impedance playback coil 15. During recording coil 16 is connected to a record amplifier and coil 15 is shorted so that any signal flux in leg 11 induces a current in coil 15 thereby giving a field in leg 11 opposing such flux flow therethrough which is accordingly substantially eliminated. During playback coil 16 is shorted. Mutual coupling between coils 15, 16 is therefore substantially eliminated in both operating modes. In an alternative form, gating conductors 30, 31 through legs 11, 12 respectively are connected to a direct or alternating current source during recording and playback respectively so that the current through the activated conductor produces magnetic fields locally saturating the inoperative leg 11 or 12 near the coil ends thereon to prevent signal flux flow through the inoperative leg. A multitraek head assembly, useful for SEL-SYNC operations, may comprise a plurality of such heads separated from one another by shielding assemblies comprising a high permeability magnetic shield (41) between non-magnetic spacers (42), Fig. 7 (not shown).
Patent GB-1152745-A (GB)
Title: Improvements in or relating to Display Devices for use in Copying Machines
Inventor: MARTIN MAURICE ALLAN
IPC: G03B27/62
Filed: 1965-11-30
Abstract: 1,152,745. Display devices for copying machines. RANK XEROX Ltd. Nov. 17, 1966 [Nov.30, 1965], No. 50703/65. Headings G2A and G2H. A display device for use in copying machines has a base 11 provided with slots for the passage of ribbons 14 carrying information to be copied. The ribbons are wound on rollers 13, such that the required information can be moved opposite a window or aperture 16 in a cover sheet 15 which carries permanent information 20, Fig. 1 (not shown).
Patent GB-1412986-A (GB)
Title: Thin-film circuit assemblies
IPC: H01L27/01
Filed: 1972-11-03
Abstract: 1412986 Printed circuits ROBERT BOSCH GmbH 3 Nov 1972 [5 Nov 1971] 50713/72 Heading H1R A thin layer assembly on an insulating substrate comprises a layer of valve metal 2 (Fig. 1) patterned to define passive components interconnected by conductive tracks, and terminal contacts with a layer of its oxide 3 on the passive component areas, and on the conductive track and contact areas two layers 4, 6 of copper separated by a diffusion blocking layer 5, and a layer 7 of tin/lead solder on the upper copper layer. The valve metal may be tantalum, niobium, aluminium, zirconium or hafnium and the diffusion blocking layer of iron, nickel or cobalt. Initially the valve metal, copper and diffusion blocking layers are deposited over the substrate, layers 4 to 6 by cathode sputtering, and using photoresist and etching steps the resistors, tracks and contacts are delineated. Subsequently layers 4 to 6 are removed from the resistor areas by selective etching and the remainder of the circuit masked while the resistor areas are anodically oxidized to form oxide layer 3 to a thickness consistent with the desired resistance value. The layer 7 is then provided by dipping in molten lead-tin solder.
Patent GB-1197988-A (GB)
Title: Process for the Manufacture of a Composite Yarn which is Provided with Spaced Slubs
Inventor: CERUTTI GIACOMO
IPC: D01H5/36
Filed: 1967-11-08
Abstract: 1,197,988. Spinning, guiding and tensioning yarns. BEMBERG S.p.A. 8 Nov., 1967 124 Nov., 1966; 31 May, 1967], No. 50819/67. Headings D1D, D1F and D1W. In the manufacture of a composite slubbed yarn comprising two or more component, e.g. drawn polyamide or polyester, yarns, the supply of one component is intermittently arrested, e.g. for 2-5 seconds, as it approaches a jet device, wherein all the yarns are treated with a turbulent gaseous, e.g. compressed air, stream in order to entangle them, and the tension in the other component(s) is simultaneously reduced. The composite yarn passes from the device to a ring-traveller twisting and take-up apparatus and the twist, running backwards along the yarn to a point upstream of the device, causes the yarn(s) in which tension has been temporarily reduced to wind around .the arrested (and, therefore increasingly tensioned) yarn(s) in order to form slubs. The size and form of the slubs may be varied in alternating and/or irregular, perhaps programmed manner. In the operation of the apparatus shown in Fig. 1, yarn 1 under tension passes through an adjustable disc tensioner 5, a movable eyelet guide 6, jet device 7 where it meets a yarn 8 supplied under tension by pressure roller 15 and driven roller 17. Composite yarn 9 is wound into a package on a rotating tube 11 within a twisting ring 10. When irregularly spaced pins 23 on a rotating switching wheel 22 close a circuit 20, relays 24, 25, 26, are energised respectively to actuate a lever 18 thereby separating rollers 15 and 17 and stopping the advance of yarn 8, to brake and quickly stop rotation of roller 15, and to adjust the tensioner 5 so that the tension in yarn 1 is decreased, and a stub 28 is formed. Opening circuit 20 restores the non-slubbing advance of the yarns. Slub variation is obtained by mechanically, electrically or pneumatically induced oscillatory or reciprocating movements of eyelet 30 of guide 6. In one mechanism, Fig. 3 (not shown) eyelet 30 is connected to a linearly constrained link motion which is reciprocated by engagement in a slot thereof of a pin carried eccentrically on a rotating wheel. Another mechanism, Fig. 4, comprises a reversible rack 41 driven by a pinion 42 alternately, in one direction, by direct mesh therewith and then, in the reverse direction, indirectly through an intermediate pinion 43.
Patent GB-1146990-A (GB)
Title: Vented screw closure
IPC: B60T11/26
Filed: 1967-11-08
Abstract: 1,146,990. Container closures. ALFRED TEVES G.m.b.H. 8 Nov., 1967 [7 Feb., 1967], No. 50855/67. Heading B8T. [Also in Division F2] A screw cap 2 for a liquid container, e.g. a reservoir in a vehicle braking system, allows the container to be vented via apertures 7 and 8 and air hole 9. A cap 3 is attached to an annular flange 10 of the cap 2 and has pins 6 which press a disc 4 against the flange 10. The apertures 7 and 8 are offset to avoid liquid loss by splashing and to give the vented air a tortuous path to follow so that air-borne droplets are deposited and can drain back into the container. A rubber ring 1 provides a seal for the cap 2. The disc 4 may have more than one aperture and the cap 3 a single aperture.