baber/WOPTO huggingface dataset:
Patent GB-1487161-A (GB)
Title: Magnetic compass systems
IPC: G01C17/38
Filed: 1975-10-31
Abstract: 1487161 Flux valve compasses SPERRY RAND CORP 31 Oct 1975 [2 Dec 1974 (3)] 45108/75  Heading GIN [Also in Divisions G4 and H4] The output signals from a flux valve compass 11  (Fig. 1) are fed to a utilization device 64 via an automatic gain control circuit 34, which maintains the combined amplitudes of the component input voltages on leads 61, 62, 63 at a predetermined value, and includes means for correcting for index error 37 and for two-cycle transmission error 48 in a way which ensures that the corrections are identical for all the component voltages. The 3-phase signals from the flux valve 11 are converted to 2- phase signals in a Scott T transformer 21 and phase-rectified at 31 to produce D.C. signals H sin 4 and H cos 4, where H is the horizontal component of the earth's field and 4 is the craft heading relative to magnetic North, which are fed back on leads 10a, 10b the flux valve windings 13, 15 to cancel out the earth's field, as described in Specification 1291597. These signals are also fed via leads 32, 33 to the gain control circuit 34 and a modulator 45 to produce out-of-phase A.C. signals on leads 54, 55 representing the components of the earth's field H relative to the craft axis. The vector sum of these component voltages is maintained at a predetermined level by the gain control circuit 34, using feedback via leads 56, 57. The 2-phase signals on leads 54, 55 are converted to 3-phase signals in Scott T transformer 60 for energizing the utilization device 64. Between the gain control circuit 34 and the modulator 45, the loading signals are modified in accordance with any index angle error due to misalignment between the craft axis and the electrical axis of the compass. This is predetermined and introduced by control knob 37a to effect both components equally by using a common timeshared amplifier. Further adjustment of the heading signals is made at 48 in accordance with predetermined errors caused by iron masses in the vicinity of the compass, and introduced by control knobs 48a, 48b. The error signals may alternatively be formed as D.C. signals and added to the currents fed back into the flux valve windings.
Patent GB-1292842-A (GB)
Title: Improvements in landing gear in road trailer vehicles
Inventor: ROSS PETER
IPC: B60S9/16
Filed: 1969-09-15
Abstract: 1292842 Road trailer landing gear; linkwork ROSS & BONNYMAN (ENG) Ltd 4 Dec 1970 [15 Sept 1969] 45302/69 Heading B7J [Also in Division F2] A trailer vehicle has a landing gear including a pair of telescopic legs 11 pivoted at 12 to the vehicle chassis, which legs are swingable from a substantially vertical position in which they support the trailer, rearwardly and upwardly to a stored position, and vice versa, a respective crank arm 18 linked to each leg through a link 18a pivotally connected to the crank arm at 18b and to the leg at 19a, and a manually operated means, in the form of a hand lever 19, through which the crank arms can be rotated between stops 20c and 20a, the pivotal connections 18b of the crank arms to the links being moved through a dead centre position prior to the crank arms abutting against each of the stops. A plunger 20b shown in Fig. 4 may be included to lock the hand lever 19 in position by engaging holes in the bracket 17. In Figs. 5, 6 (not shown), the crank 18 is rotatable by manual means via gearwheels instead of by direct leverage.
Patent GB-1061288-A (GB)
Title: Toner for electrophotographic purposes
IPC: G03G9/08
Filed: 1963-11-18
Abstract: 1,061,288. Developing electrostatic latent images. KALLE A. G. Nov. 18, 1963 [Nov. 24, 1962], No.45453/63. Heading G2H. A toner powder consisting of rounded particles is produced by spray drying a solution of a natural or synthetic resin. Natural resins such as colophony, shellac or chlorinated rubber may be used. Extensive lists of synthetic resins, solvents therefor and black dyes which may either be dissolved or dispersed in the solution are given. Other materials such as pulverized iron, magnetite or glass dust may also be dispersed in the solution. The adhesion and melting point of the toner may be varied by adding 1-5% by weight of wax or low-melting point organic compound. The spray is subjected to the heat of infrared lamps and the solvent is removed in a current of air. In the examples mixed synthetic resins are used. Polystyrene can be mixed with a maleinate or chlorodiphenyl resin in trichloroethylene or a mixture of both and an oil-free alkyd resin having an acid number 80-90 and a melting range 63-80‹C., in a mixture of trichloroethylene and methylene chloride can be used. A black dye may be dissolved in the solution and/or a black pigment dispersed in it. In a further example, the alkyd and maleinate resins are dissolved in a mixture of trichloroethylene and methylene chloride together with a black dye. The product toner is used mixed with kieselguhr or iron powder.
Patent GB-1096109-A (GB)
Title: Radiant electric heater
Inventor: JENNINGS JO EMMETT
IPC: H05B3/00
Filed: 1965-10-27
Abstract: 1,096,109. Radiant electric heaters. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Oct. 27, 1965, No. 45461/65. Heading H5H. A radiant electric heater includes a hermetically sealed envelope 11 which is either evacuated or contains a non-oxidizing gas, the envelope having a bulb 11a joined to a tubular neck portion 11b, both of non-oxidizing metallic sheet material, and a base seal 12 of insulating material closing the tubular neck portion, the bulb 11a having a thin curved non-reflecting radiating end portion 19; a filament 14a supported from the base seal 12 in substantial parallelism with the end portion 19; and a metal heat reflector 18 between the filament 14a and the neck portion 11b arranged to reflect heat on to the radiating end portion 19. The filament 14a is supported in grooves 15a in a ceramic member 15 supported by a rod 16 from the seal 12. The reflector 18 is mounted on an insulator 17 supported on the rod 16 and filament leads 14b and 14c. The envelope 11 may be of nickel or a nickel-chromium alloy and may have a reflecting coating 13 of chrome. The filament 14a may be of Mb, Ta, W, Re or Cb. The envelope may be evacuated or filled with hydrogen through a tubulation 12b. The neck 11b may be cooled by a finned heat dissipator 26.
Patent GB-1146127-A (GB)
Title: Process for sulphonating organic compounds
IPC: C07C303/00
Filed: 1967-10-05
Abstract: 1,146,127. Sulphonating organic compounds. ALLIED CHEMICAL CORP. 5 Oct., 1967 [11 Oct., 1966], No. 45564/67. Heading C2C. Process for the sulphonation (sulphation) of a sulphonatable organic liquid which comprises contacting the organic compound with a mixture of SO 3  and an inert diluent gas, separating contaminated inert diluent gas from the liquid sulphonated product, scrubbing the contaminated gas with more of the said organic compounds in an amount which in batch operation is at least 15À2 g/m.<SP>3</SP> of said contaminated gas and in continuous operation is at least 760 g/m.<SP>3</SP> per hour of said contaminated gas, and reusing the scrubbed gas in the first step adding fresh SO 3  thereto at or near the beginning of the reaction zone. The scrubbing liquid may be utilized as part or all of the compound to be sulphonated provided that said scrubbing liquid and any fresh sulphonated compound added together contain not more than 95% by weight of the sulphonated product. The feed pipe to the scrubber may be flushed with a small amount of scrubbing liquid to prevent deposition of residue. Examples use a branched chain dodecylbenzene, a linear dodecylbenzene, a linear alkyl benzene of mol. wt. 238, and ethoxylated lauryl alcohol. In batch examples the SO 3  feed and the recycled gas are fed through concentric pipes dipping below the surface of the liquid reactant, the outer pipe carrying the recycled gas extending slightly beyond the inner pipe. Continuous operation is also described.
Patent GB-1496270-A (GB)
Title: Extraction of uranium from its ores
IPC: C22B60/02
Filed: 1975-11-04
Abstract: 1496270 Recovery of uranium RIO ALGOM Ltd 25 Oct 1976 [4 Nov 1975] 45801/75 Heading C1A Uranium values are recovered from ores which contain U as a finely disseminated refractory material, e.g. brannerite or uraninite by grinding the ore, mixing it with sulphuric acid to give a moist ore containing an acid concentration of less than 4N without forming a continuous liquid phase and curing the moist ore at 50-100‹ C. while passing an oxidizing gas, e.g. air, through it. The ore is typically ground to less than 1 mm., preferably less than 0À6 mm. The acid concentration in the initial moist ore is preferably 2-3 N and curing time is suitably 12-24 hours. The oxidizing gas may be moistened and a total volume of at least 20 ft<SP>3</SP>/short ton of moist ore is preferably employed. Usually the ore is ground wet and is de-watered to contain 10-15% water for acidification with the acid. Extractions in excess of 95% U may be obtained.
Patent GB-1439937-A (GB)
Title: Rockets
IPC: F15B15/08
Filed: 1972-10-05
Abstract: 1439937 Deflecting propulsion jets DEFENCE SECRETARY OF STATE FOR 25 Sept 1973 [5 Oct 1972] 45890/72 Heading B7G [Also in Division F1] In a fluid operated actuator, Fig. 1, rotation of a cylindrical body 7 is produced when a piston-rod 13 reciprocates in a cylinder 12 by external splines 17 on the rod which engage internal splines in the cylinder 7. A pin 14 prevents rotation of the rod 13. Gas under pressure is constantly supplied to the smaller face of a piston 20, thus holding the piston in the left-hand position in Fig. 1. To move the piston to the right, gas is also supplied to the left of piston 20. As described, four actuators control four spoilers 5 of a rocket motor having a nozzle 2 and a nozzle exit 3.  The piston may be single acting and returned . by spring means. The gas supply may be tapped from the socket motor or be from a bottle.
Patent GB-1582385-A (GB)
Title: Method of producing a sealed hard gelatine capsule containing a liquid
IPC: A61J3/07
Filed: 1977-11-04
Abstract: Prefabricated hollow hard gelatin containers are used for packaging liquid medicaments. These containers can be produced as sealed, one-part hard gelatin capsules. It is also possible to use two-part hard gelatin capsules (1) which have been sealed at the separating point before filling. Liquid medicaments are introduced into the hard gelatin capsules (1) with hollow needles (5). The hollow needles (5) are inserted in openings provided in the hard gelatin capsules (1). However, they can also be used in order to produce openings in the hard gelatin capsules (1). The openings in the hard gelatin capsules (1) are sealed with a quickly drying sealing compound after the filling operation. <IMAGE>
Patent GB-991438-A (GB)
Title: Pneumatic follower control mechanism
IPC: F15B9/12
Filed: 1962-12-10
Abstract: 991,438. Fluid-pressure servomotor systems. SIEMENS & HALSKE A.G. Dec. 10,1962 [Dec.14, 1961], No.46543/62. Heading G3P. A pneumatic follow-up system for use in control devices or indicating instruments comprises a lever D of which one end E receives the input signal, the other end coacts with a nozzle AS and an intermediate point is connected by a link L, adjustable along the lever, with a further lever Z having a fixed pivot P in alignment with the line of action of the input signal and subject to the opposed forces of a spring F and a bellows K connected through an amplifier V with the nozzle AS.
Patent GB-1413495-A (GB)
Title: Process for the regeneration of a deactivated hydrocracking catalyst
IPC: B01J23/90
Filed: 1972-10-11
Abstract: 1413495 Catalyst regeneration INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 11 Oct 1972 [13 Oct 1971] 46868/72 Heading BIE [Also in Division C5] Deactivated hydrocracking catalysts comprising a sulphided fluorine-containing compositions, e.g. comprising sulphided nickel, tungsten and fluorine on silica-alumina, and which have become deactivated as a consequence of having been exposed to oxygen, e.g. during oxidative regeneration, are regenerated after discontinuing the flow of hydrocarbon feed to the catalyst by (i) oxidising with an oxygen-containing gas; (ii) converting the oxidised metal components to the sulphidic form by contact with a sulphur containing gas in the presence of hydrogen; and (iii) contacting the sulphided catalyst with a fluorine-containing gas at 175C to 600C. In the examples, the catalysts are contacted with air or an oxygen/nitrogen mixture, then a hydrogen sulphide/hydrogen mixture and then difluoroethane.
Patent GB-1262278-A (GB)
Title: Improvements in or relating to can ends
Inventor: FRANEK JOSEF TADEUSZ
Filed: 1968-10-07
Abstract: 1,262,278. Opening cans. METAL BOX CO. Ltd. 23 Sept., 1969 [7 Oct., 1968], No. 47466/68. Heading B8D. An aluminium or tin-plate can end comprises a removable panel 1 defined by a scoreline 2, and a pull tab 7 formed by a length of wire bent into a loop with scoreline rupturing end portions 13 and 14 juxtaposed and extending outwardly from the ends of axially aligned straight loop portions 10, which are directly welded, soldered, brazed or cemented to the panel. The loop is cranked upwardly at 15 adjacent an annular bead 3 formed in the panel and provided with further bends 16 to space the curved loop portion 17 from the panel. The wire ends 13 and 14 extend obliquely to each other at 45 degrees to the plane of symmetry 9 of the tab. In a modification, Fig. 8 (not shown), the score line extends around the crest of the annular bead. In another embodiment, Figs. 9-12 (not shown), the wire ends extend parallel to each other and are bent down, the straight loop portions. 10 being secured to the annular bead, the side loop portions being curved about the bead, and the curved finger loop portion 17 being cranked upwardly from the panel surface. The can end may be of non-circular shape, Figs. 13-16 (not shown).
Patent GB-1247040-A (GB)
Title: Dyes containing 1-indenylidenetriaryl-phosphorane residues and their use
IPC: C08F8/30
Filed: 1968-10-08
Abstract: 1,247,040. Dyes containing 1-indenylidenetriarylphosphorane residues. EASTMAN KODAK CO. 8 Oct., 1968 [9 Oct., 1967], No. 47613/68. Heading C4P. [Also in Divisions C2 and G2] The invention comprises dyes containing two nuclei joined by a methine or azo linkage, one of said nuclei being a 1-indenylidenetriarylphosphorane joined at the 3-carbon atom thereof to the linkage, the other nucleus being cyclic. The dyes are prepared by condensing a 1- indenylidenetriarylphosphorane (see Division C2) with a cyanine dye intermediate or a diazonium compound. The methine dyes are used as sensitizers in photographic silver halide emulsions (see Division G2) and the azo dyes may be used to colour polyacrylonitrile fibres in yellow to red and blue shades. In examples: (3) 1-indenylidenetriphenylphosphorane chloroform complex (I) and 2-beta-acetanilido-vinyl- 3-ethylbenzothiazolium iodide are refluxed in pyridine, cooled, diluted with water, further cooled and greenish-gold crystals of N-ethyl-2- [2<SP>11</SP> - (1<SP>1</SP> - triphenylphosphoranylidene - indenyl- (3<SP>1</SP>))-vinyl]-benzothiazolium iodide are filtered off; (4)-(9) as in (3) but using 2-beta-acetanilidovinyl- 1,3,3 trimethylindolinium iodide, p-dimethylaminobenzaldehyde, 1,3,3-trimethoxy-propene, triethyl-orthoformate, 3-cyano-5- dimethylaminomethylene - 4 - phenyl - 2(5H)- furanone or 2-anilinovinyl-N-ethyl-naphtho- [1,2-d] thiazolium p-toluenesulphonate in place of the second reactant; (11) benzene diazonium chloride is coupled with (I) to yield the 3- phenylazo derivative and further monoazo dyes substituted in the 4-position of the phenyl radical by CH 3 O, NO 2 , CH 3 , (CH 3 ) 2 N or F are specified; (12) a disazo dye is prepared by coupling tetrazotized ortho-dianisidine with (I).
Patent GB-1529843-A (GB)
Title: Digital compasses
IPC: G01C17/04
Filed: 1976-08-17
Abstract: 1529843 Digital compass MARCONI CO Ltd 17 Aug 1976 [20 Nov 1975] 47715/75 Heading H3H A compass card 1 has a spindle 6 mounted in jewelled bearings 7, 8 above and below and carries on its upper surface reflective Gray code scale markings 2, 3, 4 cooperating with fibre optic illumination and sensor means 9. A damping fluid having a refractive index matching that of the reading ends of the fibre optic sensor means is provided, a bubbled plastics sheet 23 accommodatmg expansion of the fluid. The compass card 1 and magnet 5 may be formed with a flotation chamber (not shown) so that the average density of the assembly is approximately the same as that of the damping fluid, reducing the load on the bearings 7, 8 and increasing shock-resistance.
Patent GB-1487764-A (GB)
Title: Semiconductor devices
IPC: H01L21/331
Filed: 1974-11-07
Abstract: 1487764 Semi-conductor devices SONY CORP 7 Nov 1974 [19 Nov 1973] 48300/74 Heading H1K A transistor comprises four regions 1-4 of alternating conductivity types forming PN junctions Je, Jc, Je<SP>1</SP>, the fourth region 4 having a grid structure with openings 7 into which the third region 3 extends, and the distance I between the second and fourth regions 2, 4 being shorter than the diffusion length of minority carriers in the region 3. This constraint causes the transistor to have a high emitter efficiency and consequently a high amplification factor and a low noise factor. The second and fourth regions 2, 4 may be connected together either by a semi-conductor region of the same conductivity type or by a metal connection. The islands 31 are heavily doped to form emitter contacts with the region 3, and further, they inhibit surface recombination of the minority carriers so increasing their lifetime. The invention is also applicable to thyristors.
Patent GB-1507877-A (GB)
Title: Frequency division circuit
IPC: H03K3/29
Filed: 1975-11-26
Abstract: 1507877 Frequency dividers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Nov 1975 [29 Nov 1974] 48570/75 Heading H3T [Also in Division G4] A frequency divider comprises a first pair of transistors T 5 , T 6  which are alternately rendered conducting by an input pulse train at 1, 1'; two groups of transistors T 1 , T 3  and T 2 , T 4  each group being connected so as to carry the current passing through one of transistors 5, 6 respectively; and a resistance chain which interconnects the collectors of pairs of transistors in different groups as shown in Fig. 1 and has tappings connected in a cyclically shifted fashion to the bases of the transistors such that at any one time only one of transistors T 1 -T 4  is conducting. There may be more than two transistors in each group. If the divider is formed as an integrated circuit the resistance chain is formed solely by the internal resistance of a common collector 4 of the transistor T 1 -T 4 , the base and emitter electrodes of which are diffused into the common collector 4 in the pattern shown. The tapping points 7, 8, 5, 6 are connected to the emitters by semiconductor tracks 14 formed above an isolating layer 13. The common collector 4 is formed as an island on a substrate 10 separated by isolating diffusions or silicon oxide regions 11. The conductivity of the island can be increased by a buried, heavily doped, region 12.
Patent GB-1162539-A (GB)
Title: Applicator for Dispensing Granular Insecticides, Fertilizers and Seeds.
Inventor: FARMERY HORSTINE
IPC: A01C5/02
Filed: 1966-10-29
Abstract: 1,162,539. Spray-producers. HORSTINE FARMERY Ltd. 7 July, 1967 [29 Oct., 1966], No. 48597/66. Heading B2F. A portable dispenser for granular insecticide or seeds comprises a tubular body fitting onto a valve part 2 including a plate with a discharge orifice 3, the orifice being closed by a part-spherical surface 16 of an arm 15 attached to a rod 12 which is pivoted about an axle 5, the rod 12 being biased to the orifice-closing position by a spring (21), Fig. 3 (not shown). The axle 5 passes through a ball 4 frictionally received in an aperture in the part 2, and is carried by lugs (6, 7, Fig. 3). The ball 4 is secured to the rod 12 and carries an arm 8 which may be integral with or secured to the ball, the arm having a part-spherical surface 9 adapted to close the aperture 3 when the rod 12 is fully depressed, so that a small quantity of material is dispersed after the surface 16 is removed from closing engagement with the aperture 3. The upper surface 10 of the arm 8 is formed with flat divergent surfaces to agitate the material. The surface 9 may be replaced by a flat surface (24), Fig. 5 (not shown) which does not close the orifice 3, the arm 8 acting merely as an agitator. A plate 17 is mounted for rotation about an axis through the centre of the plate containing the orifice 3, the plate 17 being formed with apertures (18), Fig. 4 (not shown), of different sizes ranging up to the size of the orifice 3, a peripheral recess (19) being formed adjacent each aperture and adjacent an unperforated portion of the plate 17, a spring-loaded ball 20 being adapted to engage with a recess and hold the plate 17 in registered position. The spring (21) may be replaced by an elastic band. The rod 12 may be rocked by a finger, or may extend to the end of the shoot 23 and rocked by dragging or tapping on the ground.
Patent GB-1198993-A (GB)
Title: Improvements in or relating to the Remote Control and Monitoring of Apparatus
Inventor: HARTLEY FREDERICK WALTER
IPC: G08C19/12
Filed: 1966-10-29
Abstract: 1,198,993. Vehicle control signals. ELECTRIC & MUSICAL INDUSTRIES Ltd. 27 Oct., 1967 [29 Oct., 1966], No. 48654/66. Heading B7N. A vehicle, e.g. crane 1, on rails 2 is driven by motor 3 from a 3-phase A.C. supply picked up by brushes 9, 10, 11 from bus-bars 6, 7, 8 and controlled and monitored from a control station 38 by signals at supply frequency transmitted via bus-bars 20, 21, 22 and brushes 23, 24, 25 and having a phase relation with the A.C. supply which is a function of the information transmitted. The 3-phase supply is applied to a Scott Transformer 30 at the control station which supplied real (0 degree) and quadrature (90 degrees) signals on lines 35, 36 to transmit units 40, 41 and receive unit 42. Each transmit unit, e.g. 40 includes a pair of modulators 50, 60 each supplied with one of the signals. The real phase signal is applied to auto transformer 51 in modulator 50 so that gates 52, 53, 54, only one of which can be opened at a time, can select one of three taps on the transformer giving zero signal or phase displaced signals of 0 degrees and 180 degrees. Similarly modulator 60 can select zero signal or phase-displaced signals of + 90 degrees and - 90 degrees. Switch unit 63 by opening one gate in each modulator can thus signal one of nine conditions, the two signals being combined by transformers 61, 62 and passed via bus-bar 20 and brush 23 to the crane. Transmit unit 41 is similar except that each modulator is separately controlled by a switch 65, 66 giving two separate control signals each selecting one of three conditions. The signals are combined and applied via bus-bar 21 and brush 24 to the crane. Each picked-up signal is applied to a demodulator 70, 71 each, e.g. 70 including a pair of phase-sensitive detectors 72, 73. A real phase reference signal obtained from Scott Transformer 74 on the crane, is applied to one detector and a quadrature reference signal to the other and the output signal +V, 0 or -V from each detector is applied to decoding apparatus 77 on the crane. In a similar manner signals monitoring various conditions on the crane are transmitted by transmitter unit 80 on the crane to receiver 42 at the Central Station. The conductive connection between transmitter and receiver may be replaced by a transmission system using radio, light or sound waves or inductive or capacitive signalling.
Patent GB-1409071-A (GB)
Title: Pipe section having a sealing ring
IPC: F16L21/04
Filed: 1972-10-23
Abstract: 1409071 Pipe couplings FORSHEDA IDEUTVECKLING AB 23 Oct 1972 [25 Oct 1971] 48704/72 Heading F2G An elastomeric ring, which may unroll (Figs. 4 and 5, not shown), roll over a fixed stem 6 or roll clear of a groove (Figs. 6-8, not shown) is anchored or partially embedded in a pipe socket or on a pipe spigot, on forming the socket or spigot by moulding. The ring is located behind a guide shoulder 14. The moulding arrangements for making a concrete pipe are described.