baber/WOPTO huggingface dataset:
Patent GB-984603-A (GB)
Title: Improvements relating to multiplex servo systems
Inventor: CURTIES MAURICE CECIL
IPC: G05D3/14
Filed: 1962-11-24
Abstract: 984,603. Electrical correspondence control systems. FERRANTI Ltd. Nov. 18, 1963 [Nov. 24, 1962], No. 44529/62. Heading G1N. [Also in Division G3] A servo system forming part of an aircraft auto-pilot comprises servomotors 1, 2, 3, which are mechanically cascaded for driving output member 4 in a straight line. The motors are associated with individual servo amplifiers 5, 6, 7, and signal amplifiers 8, 9, 10. Negative feedback signals representing the output displacement of each motor are fed along paths 11, 12, 13, to the respective servoamplifiers. Potentiometers 15, 16, 17, detect movements of the output member to provide negative feedback to the signal amplifiers. Each of the servomotors is able to provide for the total movement of the output member 4. A comparator 14 compares the amplitudes of the signals - fed back to the servo amplifiers, any discrepancy between any one signal and the others causing an output from the comparator indicating in which sub-channel the failure has occurred, and which may disconnect the faulty sub-channel. In another arrangement, the feed-back paths 11, 12, 13, are duplicated as well as the potentiometers 15, 16, 17. The system may have a rotary output member. The casing of the first motor is fixed and its shaft is geared to the casing of the second motor. Similarly, the shaft of the second motor is geared to the casing of the third motor whose shaft is the output shaft of the system.
Patent GB-1083838-A (GB)
Title: Apparatus for combining arithmetically two numbers
Inventor: ABERNATHY ROGER EDWIN
IPC: G06F7/49
Filed: 1965-10-22
Abstract: 1,083,838. Digital computers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 22, 1965 [Nov. 5, 1964], No. 44751/65. Heading G4A. In an electric digital system for adding or subtracting numbers in a pair of registers R, L, Fig. 2, in which the contents of each is successively incremented or decremented until a carry takes place in one indicating that the result is in the other, the contents of at least one of the registers is initially compared with zero and the radix whereby the registers L, R to be incremented or decremented are chosen in order to obtain a minimum number of steps. The example of Fig. 2 is applied to registers R, L having four binary bits (radix 16), but binary coded decimal system is referred to. The registers R, L form single digit components of multi-order registers (Fig. 3, not shown) and to which the process is applied to each order stage sequentially. The contents of the registers are first tested for zero, thereby stopping further operation and indicating directly, when one operand is zero, that the other register contains the result. The contents, if non-zero, are then compared at V to determine which is nearer to zero or to the radix B as by comparison with B/2, whereby control circuit A-S-ST is set to operate the incrementing, decrementing circuit M to selectively operate on the registers R, L until a carry is indicated in registers UR, UL. In the event of the result being in the register other than that in which it is required, the circuit (M2) (Figs. 3 or 4, not shown) is used to transfer the contents to the required register. In the modification of (Fig. 4, not shown) the contents of only one register (R) is compared with B/2. A detailed circuit (Fig. 9, not shown) illustrates a system for incrementing or decrementing the registers by gating oppositely phased timing pulses (R1), (R3), the operation continuing until a carry is indicated in registers (UR), (UL).
Patent GB-1011057-A (GB)
Title: Improvements in and relating to toy water pistols
IPC: F41B9/00
Filed: 1961-12-15
Abstract: 1,011,057. Water pistols. M. SHUN. Nov 20, 1962 [Dec. 15, 1961], No. 45049/61. Heading A6S. A water pistol, of the kind in which water is ejected in a different direction from which the barrel is pointing, has a nozzle 42 positioned back within the barrel and is rotatable to eject water through one or other holes 44 in the side of the barrel. The nozzle is rotated by a belt 40 by means of a knob 34 to various positions marked in a manner calculated to mislead all but the user.
Patent GB-451283-A (GB)
IPC: G03C7/14
Abstract: 451,283. Colour photography. DERVIEUX, A., 45, Rue Nollet, Paris. Feb. 14, 1935, No. 4792. [Class 98 (ii)] Apparatus for copying lenticular films by projection comprises an optical reproduction system having an angular aperture not less than that of the lenticular elements and an illumination device for the original film providing a practically continuous surface or line of illumination and embracing a very large angle of illumination in the plane perpendicular to the lenticulations, the arrangement being such that the light rays impinging on the film have an intensity increasing progressively with their obliquity so as to secure substantially uniform illumination of the effective pupil of the reproducing objective. As shown in Fig. 1, the illumination device comprises lamps 1 arranged in a circular arc behind the original film A. The lamps may also be arranged in an elliptical arc or a luminous discharge tube or incandescent filament lamp in the form of an arc may be used. When separate lamps are used a diffraction arrangement may be placed between the lamps and the film. One or more oscillating lamps or lamps provided with moving reflectors may be used and some of the lamps may be replaced by stationary reflectors. Movable or fixed screens of variable or constant opacity may be employed. As shown in Fig. 5, the original film A illuminated by the discharge tube C is projected by the objective D, D and the rectifying prism E on to the copy film B, which is fed in the opposite direction to the film A. The prism E may be replaced by a mirror or a Wollaston prism. The lenses 4 and 5 may be cemented and uncemented achromatic and aplanatic combinations, and the back combination of a Petzval objective may be added to each half of the objective, and the two halves may be of different focus.
Patent GB-1406425-A (GB)
Title: Film synchronisers
IPC: G03B31/02
Filed: 1971-09-28
Abstract: 1406425 Cinematography ROBERT RIGBY Ltd 25 Oct 1972 [28 Sept 1971] 45217/71 Heading G2E A film synchronism of the type having a shaft 38 able to carry at least two film spools comprises a motor to drive the shaft 38 and a manually operable clutch to permit the shaft 38 to be motor or manually driven. The clutch comprises contrate gears 16, 24 moved together/apart by control lever 32. A motor and gear-box assembly 6 is adjacent the clutch. Drive belt 40 links the clutch to shaft 38. Alternatively Fig. 4, 5 (not shown) the clutch may be located on the synchronizer's film spool carrying shaft.
Patent GB-994388-A (GB)
Title: Preparations comprising metal-containing dyestuffs and process for their manufacture
IPC: C09D11/00
Filed: 1962-11-29
Abstract: In a process for the manufacture of dyestuff preparations in solid form and substantially free from electrolytes, organic metal-containing o,o1-dihydroxy azo dyestuffs are treated in aqueous medium with a water-insoluble natural or synthetic elastomer or plastic of high molecular weight which is solid at room temperature and has a dissolving action on the azo dyestuff-metal complex. Specified high molecular weight materials are chlorinated rubber; cellulose ethers; polymers of acrylonitrile, ethylene, propylene, 1-butene, vinyl chloride, vinyl acetate, styrene, acrylates and methacrylates; copolymers of butadiene and acrylonitrile, or of vinyl chloride with vinylidene chloride, vinyl acetate or acrylonitrile; coumarone-indene and phenol-modified coumarone-indene resins; ethylene glycol terephthalate polymers; glycerophthalate aldehyde, ketone, phenol-formaldehyde, urea-formaldehyde, melamine -formaldehyde, polyamide, polycarbonate and polyformal resins. Specified metals are chromium and cobalt.  The aqueous medium may contain a swelling agent for the polymer, e.g. ethanol, isopropanol, glycol, ethylene glycol monomethyl ether, toluene, acetone and ethyl acetate.  The preparations may be used for colouring natural and synthetic resins, waxes and lacquers, and may be used in the preparations from cobalt and chromium complexes of azo dyes and (4) vinyl chloride/vinyl acetate from cobalt and chromium complexes of azo dyes and (4) vinyl chloride/vinyl acetate copolymers, (1 and 2) maleic resins, (3 and 7) cyclohexanone/formaldehyde resins, (5) phthalic acid/pentaerythritol resin, (6) polyvinyl acetate, (7) ethyl cellulose, (7 and 10) abietic ester resins, (8) polyvinyl chloride, (9) polymethyl methacrylate, (11) polystyrene, (12) chlorinated rubber and (13) urea/formaldehyde resin. Specifications 684,646, 716,753, 743,907, 745,641, 832,206 and 973,238 are referred to.
Patent GB-1139278-A (GB)
Title: Improvements in or relating to machines for cutting plastics material films
IPC: B26D1/03
Filed: 1967-10-04
Abstract: 1,139,278. Cutting machines. J. WATTRE. 4 Oct., 1967 [17 Oct., 1966], No. 45297/67. Heading B4B. [Also in Division B6] A machine for cutting plastics material film 3 comprises a supply roller 1 provided with a regulatable electromagnetic brake and from which the film is fed through a train of rollers 31, 33, 34, 35 on to a take-up roller 2 displaceable by an adjustable speed motor and comprising juxtaposed mandrels, the film being cut while on the roller 2 by means of blades 44 mounted between spacers 45 the width of which is equal to the width of the mandrels, the blades and spacers being mounted on a rotatable idler roller 46 which bears on the film carried by the roller 2 and is mounted on a pin 41c carried by a support 41 mounted dovetail fashion on a vertically-movable plate 42 having secured thereto a member 51 carrying a pivot having arms 52 and 53 carrying idler rollers 54 and 55. The spacers 45 are carried on rods 41y and 41z carried by the support 41.
Patent GB-1002845-A (GB)
Title: Improvements in and relating to semi conductor devices
IPC: H01L21/607
Filed: 1962-11-30
Abstract: 1,002,845. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 30, 1962 [Dec. 4, 1961], No. 45388/62. Heading H1K. An electrical conductor is joined between its extremities to a semi-conductor body by a thermo-compression bond and is then joined on both sides of the bond to a current supply member. As shown, a wafer of P-type germanium 1 is heated in the presence of antimony vapour to produce an N-type surface layer. It is then soldered, 3, to a nickel support 4, using a solder containing indium and gallium, to form an ohmic contact with the P-type wafer 1. A hemispherical piece of nylon plastic is fused on to the central part of the wafer which is then electrolytically etched to remove the N-type layer except where it is covered by the nylon. The nylon is then dissolved to leave an upstanding portion 6 capped by N-type layer 2. An aluminium wire 8 is etched and then pressed on to the wafer using a sapphire head, and the wafer is heated to form a thermo-compression bond 13 which simultaneously forms a P-type emitter region. A gold wire 9 is similarly secured to the wafer at 12 to form an ohmic contact with base layer 2. The wafer may be reheated after each bonding operation to improve the characteristics of the contact. The complete structure is mounted on a header comprising metal ring 21 with conductors 22, 23, 24 sealed into glass plug 25. Support 4 is soldered to conductor 22 and the wires 8, 9 are soldered on both sides of the thermo-compression bonds 13, 12 to the conductors 23, 24 respectively. The device is enclosed in a cap which fits over ring 21.
Patent GB-1040470-A (GB)
Title: Linear polyester blends
IPC: C08K3/40
Filed: 1964-11-11
Abstract: A fibre-forming polyester blend comprises a mixture of (a) poly-(1,4-cyclohexylenedimethylene) terephthalate and (b) a minor proportion of polyethylene terephthalate, preferably present in an amount of 5 to 15% by weight of the composition.
Patent GB-1401545-A (GB)
Title: Manufacture of thin metal bodies
IPC: C22C1/04
Filed: 1972-10-06
Abstract: 1401545 Powder metallurgy LAMP METALS Ltd 3 Jan 1974 [6 Oct 1972 27 April 1973] 46146/72 and 20255/73 Heading C7D In the manufacture of wire, rod, strip sheet or foil, Mo, W or Mo-W, particles not greater than 10Á in dia are compressed to form a compacted bar which is heated to 1500‹-2700‹C to effect partial sintering, followed by a final sintering operation at a higher temperature e.g. 2100‹-3200‹C in a dry inert atmosphere, e.g. of Ar or He, the sintered bar being finally worked below the recrystallization temperature to the desired form. The first heating may be carried out in dry H 2 , in a vacuum, or in a dry inert gas; in the latter case, the heating is continuous until the final sintering temperature is reached. The Mo and/or W may also contain up to 5% Re, Ru, Ir, Os or Cr and up to 2% of K 2 O, SiO 2  or Al 2 O 3 . The heating is effected by passing a current through the bar.
Patent GB-1515629-A (GB)
Title: Closure for metallurgical converter tap hole
IPC: C21C5/46
Filed: 1976-11-05
Abstract: 1515629 Closure plugs for metallurgical converter tapholes STAHLWERKE PEINESALZGITTER AG 5 Nov 1976 [6 Nov 1975] 46258/76 Heading F4B A fusible closure plug 6 for a metallurgical converter taphole 4 is of frusto conical shape and comprises a metal top plate 7, a central tube 10 welded to the top plate, a deformable metal shell 8, and mouldable refractory material 9 filling the annular space between the central tube 10 and the shell 8. The closure plug 6 is insertable into the taphole 4 by means of pressure applied thereto via a holder 5 comprising a rod 11 carrying a plate 12 which abuts against the end of tube 10 at the base of the plug with the end part of the rod 11 inside the tube 10. Outwardly projecting barbs 13 on the shell 8 resist removal of the plug from the taphole. The physical properties of the plug 6 are such that, in use, the metal plate 7 withstands converter slag temporarily in contact with it when the converter is initially tilted but melts through when the converter is tilted further with the metal plate 7 in contact with molten steel in the converter. Preferably the metal plate or plates 7 and the shell 8 are of steel.
Patent GB-1037470-A (GB)
Title: Improvements in or relating to fuel elements
IPC: G21C3/62
Filed: 1964-11-13
Abstract: Multi-coated articles, in particular nuclear fuel and neutron poison particles, comprise a core coated with an inner, low density, spongy, shock absorbing pyrolytic carbon coating and at least two distinct outer coatings of dense, thermally conductive pyrolytic carbon, the interface between the two outer coatings forming a barrier which prevents propagation of cracks through these coatings. In the case of nuclear fuel particles, the core is formed from a fissile material such as uranium carbide or a uranium carbide-thorium carbide mixture, whereas for a poison it may be boron carbide or gadolinium carbide. The fuel or poison particles are dispersed as a fluid bed in a stream of helium containing acetylene at a relatively high partial pressure, e.g. 0.65 to 0.90 atmosphere, and heated to between 800 and 1400 DEG C., whereupon the acetylene gas decomposes and forms a low density, spongy, pyrolytic carbon coating on the particles.  When the desired thickness, e.g. 5 to 50 microns, has been deposited, the flow of acetylene gas is terminated.  In the case of fuel particles, the thickness is preferably one to two fission "recoil ranges", i.e. 12 to 50 microns, so as to absorb the fission recoils and prevent them from striking and rupturing the brittle, dense fission products retentive pyrolytic carbon coatings.  This inner coating also prevents thermal and irradiation stresses from being transmitted to the outer coatings.  Two distinct outer coatings are obtained by the thermal decomposition of methane gas in such a manner that they are not cohesively bonded to one another.  This may be achieved by reducing the temperature of the particles after each coating so that the methane does not decompose, by interrupting the flow of methane after each coating, or by both cooling the particles and interrupting the flow of methane.  Preferably, however, the coatings are applied in such manner as to have different crystallite structures.  For example, the particles may be dispersed as a fluid bed in a stream of helium containing methane and heated to between 1200 and 2200 DEG C. If the partial pressure of the methane is between 0.08 and 0.80 atmosphere at a total gas flow of 1000 to 10,000 cc/min. through a 1 in. dia. reaction tube, the pyrolytic carbon coating obtained will be laminar whereas if the partial pressure is reduced to between 0.001 and 0.08 atmosphere, the coating will be columnar.
Patent GB-1181164-A (GB)
Title: Improvements in the Manufacture of Investment Casting Moulds
Inventor: HAYWOOD FREDERICK WARDLE
IPC: B22C1/16
Filed: 1967-10-11
Abstract: 1,181,164. Making investment moulds by spraying. WILD BARFIELD Ltd. 9 Oct., 1968 [11 Oct., 1967], No. 46454/67. Heading B5A. [Also in Division C3] Investment casting moulds are made by feeding particulate stuccos into a high volume, low-pressure air stream, injecting a liquid capable of gelling the stuccos into the air entrained stuccos before or after their exit from a surrounding duct and directing the mix thus produced on to wax moulds or patterns to form multiple layers thereon. The gelling liquid may be aluminium hydroxychloride and the stucco may contain tricalcium penta-aluminate, 5- 20 wt. per cent refined gypsum, or 1-10 wt. per cent fine magnesium oxide or 5-20 wt. per cent ball clay with alumina, zircon or molochite.
Patent GB-1492468-A (GB)
Title: Irradiation device
IPC: A61B8/14
Filed: 1975-11-11
Abstract: 1492468 Acoustic imaging devices; diagnostic aids SIEMENS AG 11 Nov 1975 [23 Dec 1974] 46625/75 Heading G1G A multi-element ultrasonic device producing a visual B-scan image comprises a support block 7 with a guide slot 5 having openings 6, 8 through which a metal canula 10 can be guided, the path of the canula through a body 12 with which the device is in contact being visually monitored. As claimed, an ultrasonic irradiation device defines a section of a body of an extent limited by the irradiation field of the device when placed on the body surface to produce a visual image, the device being provided with a guide which enables a penetration tool to be inserted through the body surface at an entry location in the irradiation field so that the passage of the tool through the section can be visually monitored. As described further, the opening 8 may be in place of one or two transducers 3 and preferably at the centre of a row of a hundred transducers, or may be at a space between the transducers (not shown) if the canula is sufficiently narrow. More than one row of transducers may be used, each row having its own associated slot. The inserted canulae may be used to remove body fluid, organ tissue or for injection purposes.
Patent GB-1348292-A (GB)
Title: Gas fuelled cigarette lighters
IPC: F23Q2/167
Filed: 1971-10-07
Abstract: 1348292 Gas-fuelled lighter J G TRICOT 7 Oct 1971 [20 Oct 1970] 46632/71 Heading F4F In a gas-fuelled cigarette lighter, a user's finger or thumb actuates a flint-wheel 11 and then contacts a flame-guard cover 14 so that a gas outlet valve 5, 6, 7 is opened by pivotal movement of the cover 14 which acts directly on the stem 7 of the valve by the engagement of an integral lug 16 under a projecting portion 18 of the valve stem 7. The lug 16 is bent inwardly of the cover 14 in the pressing of the cover to form an opening 15 permitting passage of the flame from a burner consisting of the upper end of the valve stem 7. The cover 14 is pivotally mounted by the engagement of aligned apertures in its side walls with trunnion-forming bosses 19 moulded integrally with lugs 20 carried by the head 1 of the lighter. A further pair of bosses 21, also moulded integrally with the lugs 20, constitute trunnions to rotatably support the flintwheel 11. Flame length may be adjusted by rotation in a horizontal plane of a lever 9 attached to valve guide 4 to vary pressure at tapered surfaces 10 on the upper end of a wick 3.
Patent GB-1134148-A (GB)
Title: Improvements in and relating to tamping and ramming machines
IPC: E02D3/068
Filed: 1967-10-13
Abstract: 1,134,148. Impelling tools. RILCO G.m.b.H. & CO. K.G. 13 Oct., 1967 [31 Oct., 1966], No. 46717/67. Heading B4C. In a motor - driven rammer a spring-loaded piston-rod 7 carrying a tamping tool 8 is reciprocated in a casing 1 by a lifting cam 5 engaging a roller 6 on the rod 7. The cam 5 is driven from a motor on the casing through gearing, lubricated by an oil bath 14.
Patent GB-1171613-A (GB)
Title: Headpieces for Liquid Containers having Flexible Liners Collapsible by Fluid Pressure
Inventor: PORTER THOMAS
IPC: B67D1/08
Filed: 1965-11-04
Abstract: 1,171,613. Dispensing liquids by gaseous pressure. PORTER-LANCASTRIAN Ltd. Nov. 2, 1966 [Nov.4, 1965], No. 46852/ 65. Heading FIR. A flexible bag disposed in a container 2 which is pressurized to dispense liquid from the bag, has an outlet 32 which engages a boss 52 on a cover 38 secured to the container. A dip tube passes through a bore in the boss into the bag and the annular space between the tube and bore connects with an air bleed valve 58. Semi-circular supports 24 engage the cover by means of flanges 28 and support the bag outlet on the boss 52.
Patent GB-1524845-A (GB)
Title: Spray dryer
IPC: B01D1/18
Filed: 1975-11-13
Abstract: 1524845 Spray dryers F S M GASTALDI 13 Nov 1975 [18 Nov 1974] 46875/75 Heading B1B A spray dryer comprises a cylindrical drying chamber, an inlet for material to be dried and an inlet for hot gas at an upper region of the chamber, and an outlet opening for gas and entrained material located in a lower region of the side wall of the chamber; the chamber extending below said outlet opening by a distance substantially equal to the diameter of the chamber to provide a collecting space for collecting incompletely dried particles of the material.
Patent GB-1522980-A (GB)
Title: Process for the preparation of flame retarding linear polyesters
IPC: C08G63/692
Filed: 1975-11-13
Abstract: 1522980 Flame retardant polyesters HOECHST AG 13 Nov 1975 [15 Nov 1974] 46883/75 Addition to 1469349 Heading C3R A flame retardant linear polyester is prepared by reacting a dicarboxylic acid/ester, a diol and from 3 to 20 mol. per cent, based on the total acid components, of the cyclic anhydride of a compound of the formula in which R is C1-C15 saturated cyclic or acyclic alkylene radical, an arylene radical or an aralkylene radical and R1 is a C1-C6 alkyl, aryl or aralkyl radical, the cyclic anhydride being added to the reaction mixture in solution in a diol. The examples describe preparing polyesters from dimethyl terephthalate, ethylene glycol or 1,3-propanediol and 2-methyl-2,5- dioxo-1-oxa-2-phospholane dissolved in ethylene glycol.