baber/WOPTO huggingface dataset:
Patent GB-963475-A (GB)
Title: Improvements in or relating to luminescent materials
IPC: C09K11/71
Filed: 1960-06-10
Abstract: A luminescent phosphate activated by monovalent copper and bivalent tin is represented by the formula <FORM:0963475/C4-C5/1> wherein M represents one or more of Al, Mg, Zn, Cd and B and x, y, z, p and q are subject to specified conditions.  Starting materials comprising compounds of Sr, Cu and Sn and of at least one of the elements Al, Mg, Zn, Cd and B, and of P are heated in a non-oxidizing atmosphere, such as nitrogen or nitrogen and hydrogen, at between 1000 DEG  C. and 1250 DEG  C. for 1 to 2 hours.  The element Sr and the phosphate group can be introduced as a mixture of strontium hydrogen phosphate and strontium carbonate in the starting materials.  The Cu can be introduced as copper sulphate in the starting materials.  A layer of the luminescent material can be used in combination with a mercury vapour discharge tube. Several specific examples are described and their spectral emission curves given.  Specification 925,709 is referred to.
Patent GB-1394276-A (GB)
Title: Crystal growing
IPC: C30B7/00
Filed: 1972-05-03
Abstract: 1394276 Single crystal growing MULLARD LTD 3 May 1972 20575/72 Heading BIG A method of growing a single crystal comprising the steps of providing an auqeous solution of the required crystalline material the concentration of which is such that the solution is just saturated at the proposed crystallising temperature, supporting a body of the solution in a vertical column, heating a top end of the column, cooling a bottom end of the column to provide a cold zone in the solution, supporting a seed crystal in the cold zone and maintaining a temperature gradient in the solution such that crystal material will be deposited on the seed crystal by a thermal diffusion process. Preferred embodiments include a narrow waist portion in the vertical column between the top and bottom ends, and a layer of oil on the top surface of the solution to suppress evaporation. Crystals grown were NaCl and triglycine sulphate.
Patent GB-294247-A (GB)
Title: Improvements in or relating to the manufacture of light sensitive materials
IPC: G03C1/60
Filed: 1928-07-16
Abstract: 294,247. Kalle & Co. Akt.-Ges. July 21, 1927, [Convention date]. Diazo preparations. - Premature coupling in light-sensitive diazo layers is prevented by including in the layer not only an organic acid, for example an hydroxycarboxylic acid as in Specifications 210,862 and 234,818, [both in Class 98 (ii), Photographic processes &c.], but also boric acid. In an example the layer contains the stannic chloride double salt of 4-diazo-1-dimethylaminobenzene, phloroglucin, boric acid, and tartaric acid.
Patent GB-1525847-A (GB)
Title: Transportation apparatus for palletised loads
IPC: B65G7/02
Filed: 1977-05-17
Abstract: 1525847 Hand trucks WEELPAL AG 17 May 1977 [21 May 1976] 20609/77 Heading B7B A drawbar unit includes a cubic coupling piece 16 provided with a groove for reception of the shorter limb 8 of an inverted U-section frame member 1 at one side of a rolling support for a pallet so that a self-locking coupling between the drawbar unit and rolling support is achieved. The coupling piece 16 is rotatable on a journal 15 to permit steering.
Patent GB-656578-A (GB)
Title: Improvements in or relating to radar systems
Inventor: BRANDON PERCY SAMUEL
IPC: G01S1/02
Filed: 1948-08-04
Abstract: 656,578. Phase difference measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 4, 1948, No. 20622. Addition to 656,094. [Class 37] [Also in Group XL (c)] In a phase comparator as used in a frequencymodulated radar (see Group XL (c)) for indicating whether the phase of one oscillation of variable frequency leads or lags by 90 degrees, the phase of another oscillation of the same frequency and of substantially equal amplitude, one oscillation, Fig. 5 (a), is applied through transformer PD10, PD9 in push-pull to diode rectifiers PD and PD2 and the other oscillation, Fig. 5 (b), is shaped at PD11 to give a square wave, Fig. 5 (c), which is differentiated by the condenser-resistance circuit PD12, PD14 to give a peaky waveform, Fig. 5 (d), which is applied in parallel to the rectifiers, the resultant waveforms, Figs. 5 (e) and (f) respectively, which are applied to the rectifiers being such that the polarity of the resultant average voltage across the load resistance PD5 as indicated by the meter M depends on the relative phase condition of the two oscillations. Specification 656,094, [Group XL (c)], is referred to.
Patent GB-183845-A (GB)
Title: Improvements relating to induction motors
IPC: H02K17/18
Filed: 1922-07-28
Abstract: 183,845. Boutard, H. C. E. July 29, 1921, [Convention date]. Alternating-current motors, -The rotary or stationary wound secondary member of an induction motor also carries a magnetic current-conducting drum or sleeve adjacent to the air-gap and located outside the slots for the purpose of reducing the current consumption of starting and obtaining a high starting torque. The sleeve a may consist of an iron cylinder, milled or otherwise machined, to give the required magnetic and conducting characteristics, or it may be laminated. The ends of the drum constitute short-circuiting rings for the currents traversing the drum. According to the Specification, as open to inspection under Sect. 91 (3) (a), the drum may consist of a wrapping of wires or strips of magnetic material. This subject-matter does not appear in the Specification as accepted.
Patent GB-867224-A (GB)
Title: Improvements in or relating to nuclear reactor moderator structures
Inventor: HACKNEY STANLEY
IPC: G21C5/04
Filed: 1957-07-01
Abstract: 867,224. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 1, 1958 [July 1, 1957], No. 20776/57. Class 39(4). Right prismatic graphite blocks of rectangular cross-section are stacked in columns abutting on their side faces and have fuel channels through the blocks parallel to the axes of the columns. The direction of minimum Wigner growth is always perpendicular to the axes of the channels and in any one block is parallel to a diagonal plane parallel to the channels and in any block adjacent to the side faces of the first block is parallel to the other diagonal plane parallel to the channels, the sides of the blocks being recessed to accommodate growth. In Fig. 1 blocks 10 have channels 13 and recessed sides 17. The directions of minimum Wigner growth are shown by arrows 15. Around the blocks 10 are blocks 19 with recessed sides but no channels, blocks 21 split to form wedges, packing blocks 20, and a steel vessel 23. In a modification only alternate blocks are recessed.
Patent GB-261480-A (GB)
Title: Improvements in and relating to dental suctions
IPC: A61C13/24
Filed: 1925-08-20
Abstract: 261,480. Rose, N. Aug. 20, 1925. No Patent granted (Sealing fee not paid). Teeth, artificial. - Suction appliances ior use in making dentures comprise soft vulcanizing rubber b in an unvulcanized state moulded on a thin aluminium or like matrix a having oval projections which form corresponding suction cups c on the rubber. The exposed surface of the rubber is dusted with finely powdered vulcanized dental rubber, and a protective cover e of thin metal foil coated with castor oil is applied thereto and attached by means of projections e' bent over the edges of the appliance. The matrix a is curved transversely, as shown in Fig. 3, so as to conform more closely to the model to which it is to be applied. The protective cover is removed before packing the base rubber of the denture into the mould, and the matrix is removed after vulcanization of the denture. Suctions with a single suction cup, or with a series of concentric walls forming suction cups, may also be used. Specification 10363/15 is referred to.
Patent GB-183861-A (GB)
Title: Improvements in apparatus for electrically enabling bodies to follow a marked out route
IPC: G01S1/02
Filed: 1922-07-31
Abstract: 183,861. Soc. Industrielle des ProcÚdÚs W. A. Loth. July 29, 1921, [Convention date]. Leader gear and other arrangements for assisting navigation.- Three crossed mutually perpendicular detecting coils are combined in a single structure, and used in pairs with means for reversing connections so as to give maximum and minimum effects by adding and subtracting the effects in the individual coils. Fig. 1 shows two similar detecting devices, one to the right and the other to the left, of the cable 1, the magnetic field due to the current supplied being circular. Coil 2 is vertical, and coil 4 horizontal. The horizontal component of the field passes from left to right, or the reverse, through a vertical coil in both cases, but the vertical component through the horizontal coil passes in opposite directions in the two cases. The connection which gives the additive effect in one case is therefore the reverse of that which gives the same effect in the other. Thus the side to which the cable lies can be deduced by noting which connection gives the maximum (or minimum) effect. A second vertical coil 3 is provided at right angles to coil 2, and used with coil 4 in a similar manner. Thus if coil 2 is parallel to, and coil 3 at right angles to, the axis of the vessel, the former is used to find whether the cable lies to port or starboard, and the latter whether it lies ahead or astern. Coils 2 and 3 may be equally inclined to the axis of the vessel. To ascertain the inclination of the cable to the axis of the vessel, the fluxes through the vertical coils 2. 3 may be compared by connecting them to corresponding goniometer coils which are crossed and surround a rotatable exploring coil. A similar arrangement in connection with a vertical and horizontal coil may be used to give the angular position of the aircraft with respect to the cable. The current supplied to the cable is of infra-sonorous frequency. The current induced in the detecting coils is, after amplification, split into impulses of sonorous frequency by passage through a circuit including a make-andbreak device of the required frequency. The current is then further amplified by an amplifier tuned to the sonorous frequency used, and the detecting telephones are similarly tuned. The arrangements described above may be used in conjunction with those described in Specification 167,184.
Patent GB-149239-A (GB)
Title: Arrangement for receiving electric oscillations with several receiving-tubes
IPC: H05K7/04
Filed: 1920-07-12
Abstract: 149,239. Evans, W. E., (Huth Ges., Dr. E. F.). July 12, 1920. Wireless signalling; thermionic relays.-In a thermionic receiving- system employing a plurality of valves, one or more of the valves may be automatically or manually switched in or out of the circuit, to vary the degree of magnification, the type of reception &c. For adapting the device to existing circuits, switches u, Fig. 1, are provided, which are so connected that by inserting a valve or its electrical connecting-parts, the connexion of this valve in the total receiving-circuit is effected, or a manually-operated switch may be used to effect a similar result. By a suitable arrangement of a multivalve amplifier in conjunction with a multi-position switch, the amplifier may be adjusted for low-frequency, highfrequency, or heterodyne reception, telephony, &c. according to the position of the switch. In a modified portable arrangement, all the apparatus is contained in a metal box g, Fig. 2, in which a separate compartment is allocated to each receiving-element. The metal casing forms a protection from exterior disturbing influences. The case is formed with internal projections o, which engage with corresponding grooves in the receiving elements to insure the insertion of the correct apparatus. Plugs s are provided on the base for exterior connexions, and handles f are furnished on the top of the elements for adjusting purposes. Short-circuiting switches k, included in the conductors joining the elements, are opened by hand or by the insertion of the receiving-elements. In the Specification as open to inspection under Sect. 91 (3) (a), the invention is shown as applied to receiving arrangement, Fig. 1 (Cancelled), leaving the first two valves connected in parallel. This arrangement does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 159,679.
Patent GB-861935-A (GB)
Title: Equipment of retractable fins for rockets or jet driven missiles
IPC: F42B10/20
Filed: 1958-07-01
Abstract: 861,935. Ammunition projectiles. FORGES DE ZEEBRUGGE S. A. July 1, 1958 [May 22, 1958], No. 21018/58. Class 9(1). The nozzle 12 of a rocket motor is closed by a cup-shaped element 1 having in its base openings 2 from which tubes 3 extend outwardly. An axially disposed cylinder 4 housing a piston 6 extends inwardly from the base and has openings 5 in its closed inner end. The piston stem 6 carries at its outer end a cross-shaped element 11, the arms of which are aligned with fins 8 pivotally mounted in slots 20 in a sleeve 18 which is secured on an annular extension 16 of the cup 1. The fins, which are tapered towards their outer edges, are held in the retracted position by engagement in radial grooves in a stopper 25 on which is an annular projection 24 engaged in notches 23 in the fins. From the outer face of the stopper 25, a wire 27 of low melting point metal, e.g. lead or lead alloy, extends into the motor and acts as one lead of an electric firing circuit the return lead being grounded to the casing. The fins are also engaged in slots 30 in a disc 29 of thermoplastic material. The rocket fitted with the motor is fired from a launching tube by applying a potential difference to the tube and a metal disc (not shown) at the end of the wire 27, to ignite the propellant. The gases escaping through the tubes 3 blow off the stopper 25 but the fins are held in the collapsed position by the launching tube. When the rocket leaves the tube, the thrust of the gases entering the cylinder drives the piston 6 rearwardly so that the element 11 presses against the fins 8 and rocks them to the extended position. A tapered portion of the piston stem 7 becomes wedged in a conical part 14 of the cylinder bore and the element 11 comes to rest between cam surfaces 22 on the fins and so prevents retraction thereof. Instead of a central cylinder and piston, a cylinder and piston may be provided for each fin.
Patent GB-891407-A (GB)
Title: Improvements in and relating to process and apparatus for applying a coating on welding electrode material
IPC: B23K35/40
Filed: 1959-06-19
Abstract: 891,407. Extruding welding electrodes. BOHLER & CO. A.G., GEB. June 19, 1959 [June 19, 1958], No. 21077/59. Class 87(2). A process of applying a coating to a welding electrode comprising mixing and frictionally raising the temperature of the coating material by a screw or screws 6, in a chamber 2, to a temperature of from 40‹C. to 100‹C. whilst occluded air expelled from the material is removed from the chamber 2 and extruding the heated material on to the core in an extruder 1 and allowing the coated core to cool. The frictionally generated heat is adjustable either by varying the speed of the screw, by changing the position of the feed hopper 7 on the chamber 2 or by cooling the chamber. The core may be heated before or after extrusion to aid drying and the coated electrode may be discharged on to a conveyer enclosed in a humid atmosphere.
Patent GB-1467542-A (GB)
Title: Method of melt reduction and a means for carrying out the method
IPC: C21B11/10
Filed: 1975-05-19
Abstract: In a process for the melt reduction of material containing iron oxide, to give iron, in an electric furnace, powder of the material containing iron oxide is fed to the bath (22), wired as the anode, through an electrode (1) wired as the cathode. Carbonaceous material is added to the powder (Z) in such amount that the carbon content thereof suffices to reduce the oxides in the powder and to carburise the iron melt. In a furnace for performing the process, the inner space of the electrode is connected to a feed device (12) for a mixture of material containing iron oxide and carbonaceous material. <IMAGE>
Patent GB-358585-A (GB)
Title: Improvements in or relating to the production of textile yarns
IPC: D02G3/00
Filed: 1930-07-12
Abstract: 358,585. Crape yarns and fabrics. BRITISH CELANESE, Ltd., 22, Hanover Square, London, DICKIE, W. A. and MONCRIEFF, R. W., of British Celanese, Spondon, near Derby. July 12, 1930, No. 21159. [Classes 120 (ii), 120 (iii), and 142 (iv).] Twisted yarns such as are used for crape fabrics are formed by varying the ratio of the rate of twisting and rate of travel during manufacture so that a corresponding fluctuation or irregularity of twist is produced along the length of yarn. The fluctuation may be in regular or irregular groups occurring periodically. The yarns may be of cellulose acetate or other organic derivatives of cellulose, or of other artificial filaments, such as viscose, nitrocellulose and cuprammonium artificial silk, or of mixtures of two or more of any of these materials, or may consist wholly of continuous filaments or of staple fibre or of mixtures thereof. Two or more yarns may be doubled together continuously with the imparting of the fluctuating degree of twist. Fabrics may consist wholly of such yarns, or either the weft or the warp or part of weft and/or part of the warp may consist of other yarns. The twisting may be effected by ring, flyer, or cap spindle apparatus, the rate bf feeding being caused to fluctuate, or the twisting may be effected at delivery, if desired by a device in which more than one twist is imparted for each revolution, the speed of winding-up being varied. The variation of speed of the feeding or winding means may be effected by elliptical gears or other variablespeed gearing, and in addition to or in place of such gear intermittent driving-means may be used so that the drive is stopped regularly or irregularly. As shown in Fig. 1, yarn is twisted by a delivery spindle 13 provided with a floating ring 15, as described in Specification 304,806, [Class 120 (ii), Spinning, twisting, &c.], and is wound on a bobbin 18, which is driven intermittently by a disc 20 having a protuberant driving-portion 23 engaging a drum 24 on the bobbin spindle, or by a roller 27, Fig. 4, from which it is raised intermittently by cams 29. Two arrangements for driving individual take-up or feeding devices, or a machine comprising several such devices, are described comprising respectively ratchet mechanism operated by a quick-return gear, and a gear eccentrically fixed on a rotating gear and meshing with a pinion conveying motion by a chain drive. Specifications 348,589, 352,000, 352,451, 356,233, 357,084, 357,169, 357,576, and 357,577 are referred to as describing treatments which enhance the craping effect.
Patent GB-503318-A (GB)
Title: Process of producing photographic colour pictures
IPC: G03C7/38
Filed: 1937-07-30
Abstract: 503,318. Photographic colour-developing processes. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) July 30, 1937, No. 21179. [Class 98 (ii)] In a process of colour development, a quaternary salt of a heterocyclic nitrogen base containing a reactive methyl group is included in the developer or in the sensitive layer as a colour coupler. The bases correspond to the general formula wherein R1 and R2 are H, C1, Br, 1, SO3H, alkyl, alkoxy, aryl, aralkyl, amino, or substituted amino groups or together form part of a ring system, e.g. a benzene or naphthalene ring which may itself be substituted; R3 is alkyl, aryl, or aralkyl ; Y is -CH=CH-, S, Se, O, or -C<<R4>R5 (R4 and R5 being alkyl, aryl, or aralkyl) and X is an acid radical. Suitable bodies are the quaternary salts of picoline, lutidine, quinaldine, 4-methylquinoline, 2: 4-dimethylquinoline, 2-methylthiazole, 2-methylbenzthiazole, 2 : 3 : 3-trimethyl-indolenine and their substitution products which may contain groups lending g fastness to diffusion. Examples are quinaldine-N-dodecyl chloride, 6-stearylamino-2-methylbenzthiazole dimethylsulphate, and bis-2-methylbenzthiazole dimethylsulphate. Specifications 458,400, 465,823, 468,946, 475,191, 479,838, 481,501, 483,000. 484,698, 488,048, 488,853, 489,093, 489,274, 491,958, and 491,959 are referred to.
Patent GB-579786-A (GB)
Title: New and improved process for the production of coloured synthetic resin articles
IPC: C08F4/00
Filed: 1943-12-20
Abstract: Coloured articles of synthetic resin are produced by heating a composition comprising a solution of an organic colouring matter and a polymerization catalyst in a polymerizable unsaturated compound having at least one ethylenic double bond per molecule, or in a mixture of such compounds, until said polymerizable compounds are substantially completely polymerized.  The polymerization catalyst is selected from the group formed by the compounds of the general formula R-CO-CHOH-R1 and the compounds of the general formula R-(CO)x-R1, where R and R1 are hydrogen or monovalent hydrocarbon radicals and where x is two or three.  Specified catalysts are benzoin, diacetyl and cyclohexanedione.  Specified unsaturated compounds are methyl methacrylate, acrylonitrile, styrene and vinyl acetate.  The composition may also contain a polymeric material formed by the polymerization of one or more of the above polymerizable unsaturated compounds.  It is preferred that such a polymeric material should not contain peroxides and these are removed by heat treatment.  Pigments, fillers and plasticisers may also be present.  In an example, polymethylmethacrylate, monomeric methyl methacrylate, and Solway Sky Blue B base dye are polymerized in the presence of benzoin.  A transparent blue sheet is produced. Specifications 427,494 and 450,305 are referred to.
Patent GB-1333461-A (GB)
Title: Remote responsive apparatus
IPC: H02J13/00
Filed: 1971-04-19
Abstract: 1333461 Selective signalling COMPAGNIE DES COMPTEURS 19 April 1971 [6 Feb 1970] 21323/71 Heading G4H Remote responsive apparatus comprises frequency selective means selectively responsive to a command pulse for producing a control pulse which is fed to pulse-length thresholders associated in pairs with respective bistable elements, each bistable element being set in one state in response to a signal from one of its thresholders and in the other in response to a signal from at least the other of its thresholders, such a signal from either of one pair of thresholders inhibiting change of state of a bistable element associated with a pair of thresholders relating to shorter pulse lengths. In Fig. 1, the bistable elements are polarized bistable relays R1 . . . Rn, a frequency-selective relay 1 closing a contact K2 during a command pulse of one of 2n durations on mains 100, 101, the different durations being recognized by circuitry involving capacitors C1, C2 . . . C1n, C2n respectively. Considering a command pulse of the shortest duration (recognised by C1 etc.), when K2 closes, the voltage at C doubles and C1 starts to discharge via resistors r1, r2. At the end of the pulse, the voltage at e1 will trigger thryistor (unijunction transistor) Q1 and closing of contact K1 enables transistor T1 at its base (after a delay defined by C3) so that capacitor Ct (right hand side of Fig. 1) discharges via Q1, T1 and winding W of relay R1. A command pulse of the duration recognized by C2 etc. causes the circuits associated with both C1 and C2 to be actuated, the winding W being energized in the other direction. The winding W is short-circuited via a transistor Tv if the transistor corresponding to T1 in the next stage to the right conducts, and similarly for the other stages, so that only one relay is energized (in one direction or the other).