baber/WOPTO huggingface dataset:
Patent GB-1323718-A (GB)
Title: Method of manufacturing colour picture tube
IPC: H01J9/227
Filed: 1970-10-07
Abstract: 1323718 Luminescent screens HITACHI Ltd 7 Oct 1970 [9 Oct 1969 25 May 1970 (2)] 47748/70 Heading H1D In making a multi-dot colour television screen by a process using photographic exposure through a shadow mask which is to be used in the completed tube, it is desirable that the apertures in the shadow mask should be smaller in the processing stage than in the completed tube. The apertures are made smaller by coating the mask with a liquid comprising a transparent dispersing agent and a fine preferably opaque powder and then drying it; during the drying step the opaque powder migrates to the edges of each aperture leaving a transparent hardened film in the centre, the diameter of the transparent portion being greater the longer the drying time. The liquid may comprise an aqueous solution of polyvinyl alcohol and the powder may be titanium dioxide or carbon. An alternative powder comprises a mixture of activated carbon and graphite in a ratio of 1 : 20 in the form of particles 1-5 microns in size. The central transparent film portions may be of irregular shape, and these may be transformed into circular apertures by dissolution in a mixture of a solvent such as water and a non-solvent such as ethyl alcohol preferably in a proportion of 1 : 9. After use in making the screen, the shadow mask may be rinsed to remove the coating before it is assembled in the tube.
Patent GB-1083262-A (GB)
Title: Methods of and apparatus for use in the continuous casting of steel
Inventor: HALLIDAY IAIN MACDONALD DEWAR
IPC: B22D41/50
Filed: 1964-11-24
Abstract: 1,083,262. Spouts for ladles. UNITED STEEL COMPANIES Ltd. Feb. 24, 1966 [Nov. 24, 1964], No. 47822/64. Heading F4B. A bottom pouring spout for a ladle or tundish has a metal casing 21 surrounding a refractory tube of tubular sections 23, 24 mating end-toend, and is secured to the ladle by a quick release coupling, one part 7 being secured to the ladle, and the other part being formed by a collar 8 engaging the upper part of the casing. The outlet bore 26 of the spout should be no greater than the outlet bore 4 of the ladle, but the inlet bore 25 of the spout may be larger than the outlet of the ladle. A screwed sleeve 22 at the outlet of the spout enables the pressure with which the refractory tube 23 is urged against the ladle nozzle body to be adjusted. The metal spout casing or the spout lining may have provision for induction heating, and the spout may be forked or curved.
Patent GB-1136359-A (GB)
Title: Matrix navigation system
IPC: B64G3/00
Filed: 1967-10-24
Abstract: 1,136,359. Radio position finding. J. P. CHISHOLM. 24 Oct., 1967 [26 Oct., 1966], No. 48290/67. Heading H4D.  The Specification describes an airtraffic surveillance system wherein a plurality of participating aircraft C, D, E, Fig. 1 &c., each determine their own altitude and their range to the other aircraft and transmit this information to land stations A and B whereby computer means 10, 12, produce a three dimension display 14 of the relative positions of the aircraft. A common transmission cylce of 1 second duration is shared by the N aircraft, each aircraft being 1 assigned a time slot in the cycle, - second in N duration. Atomic clock means for example establish absolute synchronism between the aircraft. Thus aircraft 1 transmits a pulse pair Y, Fig. 3, omnidirectionally at the beginning of time slot 1. Aircraft 2 for example receives this pulse pair after an interval t, which interval gives the range between the aircraft. Each aircraft after one cycle is thus supplied with the ranges to all the other aircraft. The first 1/3 of each time slot is used by the aircraft for the range measurement and during the last 2/3 of time slot 1 of the next cycle, aircraft 1 transmits to the land stations, in digital coded form, its own identity, its own altitude and the identities and ranges of all the other aircraft from the range data. The land station computer is only able to compute the relative positions of the aircraft from the range data and further information is necessary before the absolute position of the aircraft as relative to the Earth, can be established. Such additional information can be supplied by two weather ships P and T at known absolute positions being substituted for two aircraft, or by radars Ra and Rb at the land stations establishing the absolute positions of at least two of the aircraft. A synchronous satellite S may be used to telemeter information from one land station to the other.
Patent GB-1063655-A (GB)
Title: Improvements in or relating to ferromagnetic compounds
IPC: C01G45/12
Filed: 1964-11-30
Abstract: Ferromagnetic nickel manganites having a formula Ni2- pMnpO3 where p lies in the range between 1 and 1.06 inclusive are prepared by forming an aqueous solution of soluble Ni++ and Mn++ salts, coprecipitating a mixture of Ni++ and Mn++ oxalates from the aqueous solution and heating the mixture to a temperature sufficient to convert the mixed oxalate to the desired compound; the molar ratio of Mn/(Ni + Mn) is said solution is such that a compound in said range is produced. Preferably this molar ratio is such as to produce NiMnO3. The preferred Ni++ and Mn++ salts are the acetates, and oxalic acid may be used to precipitate the oxalates.  The mixture of oxalates is preferably heated at from 600 DEG  to 780 DEG  C. to decompose it.
Patent GB-996529-A (GB)
Title: Improvements in, or relating to, trestles
Inventor: SMALLWOOD LEONARD GEOFFREY BUC
IPC: E04G1/32
Filed: 1962-12-27
Abstract: 996,529 Trestle scaffolding. BOULTON SCAFFOLDING Ltd. March 31, 1964 [Dec. 27, 1962], No. 48607/62. Heading E1S. [Also in Division A4]. In a trestle comprising tubular uprights 4 connected by cross members 5, 6 and in which telescope legs 10 of the head member 9 supporting scaffolding planks and which has triangular feet 13, all the parts are of tube of a crosssection having flat equal sides e.g. square. The feet 13 carry the trestle in square sockets 15 and can be turned parallel with the trestle for transport.
Patent GB-1021981-A (GB)
Title: Load sensitive rotating anode x-ray tube speed selector
IPC: H05G1/66
Filed: 1963-12-10
Abstract: 1,021,981. Control of A.C. motors. GENERAL ELECTRIC CO. Dec. 10, 1963 [Jan. 15, 1963], No. 48817/63. Heading H2J. An X-ray tube 40 has a rotating anode associated with field windings 49<SP>1</SP>, 50, and if the tube is overloaded for low speed operation, the field windings are automatically connected to a source of higher frequency so that the rotor speed is increased to accommodate the higher loading. If the overload condition persists, the exposure start circuit is held open until the X-ray controls are set to a safe level. The cathode emitter of the tube is supplied through transformer 41 connected to auto-transformer 42 whereby adjustment of arm 44 establishes the tube current. The position of arm 45 on auto-transformer 42 determines the voltage across the tube, whilst the setting of knob 48 governs the exposure time interval. A bias voltage which is proportional to each of these tube factors controls an overload-responsive thyratron 51. A D.C. bias for the thyratron is derived from potentiometer 57 whose arm 59 is coupled with the control knob 48, the potentiometer resistor having a logarithmic characteristic. One of the resistors in bank 70 is in an A.C. bias circuit for the thyratron when the rotor is operated at low speed, each resistor in the bank corresponding with a distinctive tube current setting. One of the resistors in bank 71 is connected in the A.C. bias circuit after it has been determined that unsafe conditions exist for operating the tube at lower frequency, and a transfer has been effected at the higher frequency. A selector switch 60 is coupled to arm 44, whilst the banks 70, 71 are energized in accordance with the setting of arm 45. Closure of switch S1 energizes relay RE 10 for connecting field windings 49, 50, to a 60-cycle source. After a time delay device 82 energizes relay RE17 so that, if safe conditions exist, actuation of switch S2 closes contactor 46 to make an exposure. If thyratron 51 senses an overload, relay RE16 is energized to open contact 16A in series with switch S2, and to flash warning light 83. Operation of overload relay RE 16 also energizes relays RE8, RE18, whereby windings 49, 50, are now connected to 180-cycle power supply 85. Energization of relay RE12 permits a new A.C. bias level to be imposed on the thyratron concurrently with the change to higher speed. If the overload persists, contact 16A remains open and actuation of switch S2 has no effect. The indicator lamp 83 stays on. Release of switch S1 re-sets the circuit, and the motor can only be re-started at the lower speed.
Patent GB-1357978-A (GB)
Title: Phenyl pyrazole 4,3-e 1,4 diazepine derivative
IPC: C07D231/40
Filed: 1972-04-25
Abstract: 1357978 Phenyl - pyrazolo - [4,3-e][1,4]- diazepine derivative ABBOTT LABORATORIES 25 April 1972 48929/73 Divided out of 1357977 Heading C2C The novel compound of Formula I is prepared by the following reaction scheme Pharmaceutical compositions in conventional forms for oral, rectal and parenteral administration and having anti-inflammatory, analgesic and anti-pyretic activity comprise an above novel compound and a carrier or diluent.
Patent GB-1218939-A (GB)
Title: Improvements in or relating to bevel gear mechanisms
Inventor: ELLIS FREDERICK EDWARD
IPC: F16H3/66
Filed: 1968-10-16
Abstract: 1,218,939. Change-speed gear. AUTOMOTIVE PRODUCTS CO. Ltd. 15 Oct., 1969 [16 Oct., 1968], No. 49001/68. Heading F2D. The planet carrier of an epicyclic bevel gear train 24-32 comprises a drum-like member 10, 11 formed by one or more metal pressings in which shafts 17, carrying the bevel planet pinion clusters 24, 31, formed as radial arms of a cross-shaped centre member 15 are connected at their outer ends to the one or more metal pressings. As shown, the centre-cross-member 15 is secured by bolts 16 radially fitted through holes in a single metal pressing 10 formed with an end flange 11 for connection to the inner race 12 of a one-way sprog clutch 13. In Figs. 3 to 5 (not shown), the centre-cross-member (41) is secured in externally flanged holes (42, 43) formed half in each of two common diameter metal pressings (39, 40) bolted together at (49). Figs. 6 to 8 (not shown) illustrates a carrier similar to Figs. 3 to 5 with the exception that metal pressings (65, 66) are disimilar in diameter, the latter pressing (66) being larger and being internally flanged at (69) around the centrecross-member (67) and at the retaining bolts (71). Each of the double pressing arrangements are secured to the inner race of the one-way clutch by a flange (51) or (73) engaging a slotted end of the pressing (40) or (66) and retained by a circlip (54). Bearing washers 34 carry thrust races 37 to support the bevel planet clusters 31 against radially outward thrust.
Patent GB-999449-A (GB)
Title: Process for making 2,6 dialkylphenols
IPC: C07C39/06
Filed: 1963-12-13
Abstract: A 2,6-dialkyl phenol is prepared by reacting formaldehyde or acetaldehyde with cyclohexanone or 2-methyl cyclohexanone, in the vapour phase at a temperature of from 200-800 DEG  C., preferably in the presence of an inorganic solid, e.g. a phosphate, oxide or silicate of calcium, zinc, magnesium and aluminium.  Detailed examples are given of the preparation of 2,6-dimethyl phenol and 2,6-diethyl phenol. Specification 930,993 is referred to.
Patent GB-1209754-A (GB)
Title: Recording and/or play back apparatus
IPC: G11B15/675
Filed: 1967-10-31
Abstract: 1,209,754. Cassette tape recorders. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 31 Oct., 1967 [3 Nov., 1966], No. 49458/67. Heading G5R. A cassette tape recorder comprises a holder 2 movable between loading and operative positions and having apertures in two side walls into which extend spring-loaded ejecting and locating levers 11, 12 co-operating respectively with a retaining device 22 at the holder entrance 29, and a third wall 28 of the holder. Operation of button 27 displaces members 24 via cam surfaces 26a, 27a to release the cassette for ejection by lever 11; pins 18, 19 and notches 20, 21 limiting lever movement. The holder is coupled to the chassis by links 5 to allow the holder to be lowered on to spindles 9 and capstan 9<SP>1</SP> as a lever 8 carrying pinch roller 5a, guide 7 and heads 8 is moved into engagement with the cassette (not detailed). In a modification (Figs. 2, 3, not shown), a horizontal bar (35) is pushed down against a spring (34) when the cassette is loaded and snaps up behind it to latch it in position until a knob 37 is raised to release it. A latch (41-43) engages one of the links (5) to permit cassette loading and ejection only when the holder is in the loading position. The knob (37) is transparent to allow a tuning scale (50) or readiness indicator, and a filament lamp (47) to be visible.
Patent GB-1370992-A (GB)
Title: Production of hollow bodies of semiconductor material open at  least at one end
IPC: C01B33/02
Filed: 1972-10-31
Abstract: 1370992 Silicon SIEMENS AG 31 Oct 1972 [7 Dec 1971] 50035/72 Heading C1A In a process for the production of a hollow body of silicon open at least at one end by vapour deposition upon the surface of a heated carrier body of graphite or other carbon, the carrier being removed after sufficient silicon has been deposited thereon, the carrier, prior to reuse, is heated in air in order to burn off a surface layer. The carrier is heated to at least 800‹ C., and preferably slowly to 800‹ C., brought to 1300‹ C. for five minutes and rapidly cooled to 800‹ C. Carriers of glass carbon, spectral carbon and pyrographite may also be similarly treated.
Patent GB-1488157-A (GB)
Title: Varistors
IPC: H01C7/10
Filed: 1974-11-19
Abstract: 1488157 Varistors GENERAL ELECTRIC CO 19 Nov 1974 [19 Nov 1973] 50085/74 Heading ClJ [Also in Division HI] The sintered body 11A of a varistor 10A comprises a metal oxide mixed with at least one additive to form a medium 18A or 18B in which discrete metallic bodies 17A or 17B are distributed. The metallic bodies may be particles 17A as shown in Fig. 3, or they may comprise planar layers 17B, Fig. 4, laminated with the metal oxide medium 18B. The particles 17A may be sifted through meshes to obtain uniformity of size. The medium 18A or 18B if of ZnO with additives chosen from the oxides of Bi, Mn, Co, Sb, Ba, Ti, Li, Cr, Ge, Sn, Ni or Si. The metallic bodies may be of Bi, Sb, Ba, B, Ge, Si, Be, Sn, Cu, Gd, In, Se, Sr, Ta, Th, W, or the precious and transition metals. Sintering is at 800-1350‹ C.
Patent GB-1443211-A (GB)
Title: Bottle carrier
IPC: B65D71/58
Filed: 1973-10-29
Abstract: 1443211 Cartons FEDERAL PAPER BOARD CO Inc 29 Oct 1973 [6 Dec 1972] 50155/73 Heading B8P The blank of Fig. 4 is erected to form a carton, Fig. 1, having a multi-panel, longitudinal handle and partition structure which is connected to the end walls 17 and 15, 20, portions of this structure being cut and folded to form transverse partitions 37, 42, 37<SP>1</SP>, 42<SP>1</SP> which are secured to the side walls 16, 18. The structure is formed from two similar portions 26, 27 of the blank. Each portion 26, 27 is connected to the main part of the blank solely by a panel 31, 311. The handle portion of the structure is formed of three plies by means of two half panels 56, 56<SP>1</SP> which are folded over and glued to the main panels 54, 54<SP>1</SP>. The portions 26, 27 are then folded over and the shaded panels 31, 31<SP>1</SP>, 44, 44<SP>1</SP> are glued to the carton end and side walls. When the blank is folded about score line 12, the two halves of the longitudinal structure may be glued together. After securing the end wall portions 15, 20, the carton may be erected from its collapsed condition. The base of the carton is formed by two interlocking panels 60, 61. In a modification, each portion 26, 27 is connected to the main part of the blank by a handle reinforcing panel (146, 146<SP>1</SP>), the connection between this panel and an end wall of the blank being a short, transverse score line (124, 125). The base forming panels may be provided with flaps which form upstanding partitions.
Patent GB-1324801-A (GB)
Title: Clutches
IPC: B23F15/06
Filed: 1970-10-22
Abstract: 1324801 Cutting Clutch teeth LIBERECKE AUTOMOBILOVE ZAVODYNARODNI PODNIK 22 Oct 1970 [23 Oct 1969] 50289/70 Heading B3K [Also in Division F2] In the manufacture on a bevel-gear cutting machine, of a face clutch having teeth 14 and 15 Fig. 5 which are tapered in both axial and radial directions with the same taper, the teeth 14 on part 12 of the clutch are machined by cutters carried on rotating heads 42, 43, Figs. 12, 14 with the axis of the indexable workpiece lying parallel to the axis of the drum 57 carrying the cutter head, and the teeth 15 on part 13 are machined by the same cutters, Fig. 13, with the axis of the indexable workpiece being arranged normal to the axis of the drum. The right and left handed cutter 52, 54, Fig. 11 are intermeshed in comblike manner, and the cutter heads 42, 43 rotate about axes 42, 48, Figs. 11, 14.
Patent GB-1299140-A (GB)
Title: Electronically controlled gas pressure meter
Inventor: SMYTHE GEORGE EDWARD
IPC: A61M16/00
Filed: 1971-11-02
Abstract: 1299140 Measuring pressure electrically PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Nov 1971 50799/71 Heading G1N A variable gas pressure, as in a respirator, is measured by a bellows forming the movable electrode of a variable capacitor 21 (Fig. 2) in the tuning circuit of an oscillator 22, whose output is mixed with that of a fixed frequency oscillator 23 and the difference indicated on a meter 32, the mean gas pressure being indicated on a meter 36 and compared at 40, 41 with pre-set high and low values to operate an alarm if the mean value is outside these limits.
Patent GB-1408329-A (GB)
Title: Treatment of sewers
IPC: A01N25/16
Filed: 1973-04-25
Abstract: 1408329 Dithiocarbamate/surfactant compositions AIRRIGATION ENG CO LTD 25 April 1973 50809/74 Divided out of 1408328 Heading A5E A composition suitable for treating plant roots and other plant material, slimes and microbiological material growing inside a sewer or conduit comprises two to three parts by weight of an alkali metal acyclic alkyl dithiocarbamate to one part of a nonionic surfactant such as alkyl aryl polyether alcohol or an ester, ether, or salt thereof. The composition may be aqueous and may contain plant growth regulators (4-methylsulphonyl-2, 6-dinitro-N, N-dipropylaniline, trifluralin, dichlobenil, the diisopropyl phosphorodithioate of mercaptomethyl benzene sulphonamide) and insecticides (chlordane, DDT, diazinon). Apparatus and methods for applying the compositions in sewers are described.
Patent GB-1053388-A (GB)
Title: Laundering compositions
IPC: C11D3/395
Filed: 1963-12-24
Abstract: 1,053,388. Cleansing compositions. COLGATE-PALMOLIVE CO. Dec. 24, 1963 [May 28, 1963], No. 50859/63. Heading C5D. [Also in Division Dl] A composition suitable for softening textiles which may either be added with the detergent in laundering or to the rinse water comprises (a) a quaternary ammonium salt having a single nitrogen atom to which are attached two alkyl groups each of at least 12 carbon atoms and normally tending to soften textile materials and (b) a compound selected from (b 1 ) an alkali metal carboxy methyl cellulose, e.g. sodium carboxymethyl cellulose having 0À5-0À8 carboxy methyl groups per cellulose unit, (b 2 ) a copolymer of methylvinyl ether and maleie anhydride which may have a specific viscosity of 1-1À6, (b 3 ) a blueing agent stable to the action of light, alkali and bleach, e.g. ultramarine blue, and (b 4 ) a mixture of any two or all of (b 1 ), (b 2 ) and (b 3 ). The weight ratio of (a)/(b 1 ) is preferably from <SP>1À5</SP>/ 1  to <SP>4</SP>/ 1 , (a)/(b 2 ) from <SP>0À5</SP>/ 1  to <SP>1À5</SP>/ 1  and (a)/(b 3 ) from <SP>10</SP>/ 1  to <SP>100</SP>/ 1 . The quaternary ammonium salt may have the formula in which R 1  and R 2  are alkyl groups containing 1-3 carbon atoms, R 3  and R, are aliphatic groups containing 12-22 carbon atoms and X is halogen or methyl sulphate. Softenerdetergent compositions may contain the compounds (a) and (b) together with a non-ionic detergent, e.g. the reaction products of 1 mol of a fatty acid, alcohol, phenol, mercaptan, thio phenol, amine or amide with at least 5 mols of an alkylene oxide. The compositions may also contain inorganic builders, e.g. trisodium phosphate, tetrasodium pyrophosphate, sodium acid pyrophosphate, sodium tripolyphosphate, sodium monobasic phosphate, sodium dibasic phosphate, sodium meta silicate, sodium silicates of Na 2 O/SiO 2  of <SP>1À6</SP>/ 1  to <SP>3À2</SP>/ 1  sodium carbonate, sodium sulphate and borax, brightening agents, e.g. sulphonated substituted triazinyl stilbenes, sulphonated naptho triazole stilbenes and benzidine sulphones, colouring agents, perfumes, water and bleaching agents, e.g. sodium hypochlorite, potassium dichloro isocyanurate, trichloro isocyanuric acid, sodium or potassium perborate or potassium monopersulphate. The compositions may be in solid form as powders or granules including grains, chips and flakes, or tablets. In compositions containing a bleaching agent, the bleaching agent may be coated with a fatty alcohol, e.g. stearyl alcohol, or sealed in a water soluble polyvinyl alcohol packet. Speckled softenerdetergent compositions may be produced by mixing together softener granules and detergent granules differing in colour. The compositions are suitable for use in the laundering of wool, silk, cotton, linen, glass, cellulose acetate, viscose rayon, nylon, " Orlon " (Trade Mark) and " Dacron " (Trade Mark).
Patent GB-1159050-A (GB)
Title: Water Soluble Monoazodyes
IPC: C09B62/473
Filed: 1967-11-13
Abstract: 1,159,050. Monoazo dyes. SUMITOMO CHEMICAL CO. Ltd. 13 Nov., 1967 [14 Nov., 1966; 28 June, 1967; 5 Aug., 1967(4)], No. 51485/67. Heading C4P. The invention comprises monazo dyes having the general formula wherein R 1  and R 2  are H, halogen, alkyl or cycloalkyl and R 3  and R 4  are H 1  halogen or methyl. They are prepared by diazotization and coupling of an appropriate 2-aminodiphenyl ether and naphthol disulphonic acid in acid medium. The dyes dye wool and polyamides e.g. nylon in red and bluish red shades.
Patent GB-1139228-A (GB)
Title: Improvements in or relating to the making of magnesium die castings
IPC: B22D17/06
Filed: 1966-11-18
Abstract: 1,139,228. Die casting-machines. PLASCO Ltd. 18 Nov., 1966 [22 Dec., 1965], No. 51826/66. Heading B3F. In a magnesium die casting machine in which molten magnesium is pressure fed from a hot chamber 14 of a holding ladle 10 through a gooseneck 13 and a heated nozzle 15 into a cavity 20 of a die 18, the holding ladle 10 is pivotally mounted on a shaft 30 and swung into and out of engagement with the die 18 about the shaft 30 by a lever having arms 32, 34 and actuated by a cam 39. A further cam 46 reciprocates a link 47 and operates valves 55<SP>1</SP> and 59<SP>1</SP> to pressurize the chamber 14 with an inert gas, e.g. nitrogen, to force a shot of molten magnesium into the die 18, and then to exhaust the chamber. The rotation of the cam shaft 37 cyclically engages the nozzle 15 with a die 18, injects molten magnesium into the die, exhausts pressure from the chamber 14 and withdraws the nozzle 15. Heaters 17 and 24 are provided for the chamber 14 and nozzle 15, and detachable connections are provided to a pyrometer 22 and the gas supply 56 to enable a ladle to be removed, with or without the cover unit 41, for re-charging with molten magnesium. In a modification the shot of molten magnesium is produced by forcing down a floating piston into the chamber 14 by mechanical, hydraulic or air actuated means.