baber/WOPTO huggingface dataset:
Patent GB-1083559-A (GB)
Title: Radio guide path beacon
Inventor: FERNAU FRANCIS GEORGE GUY
IPC: G01S1/02
Filed: 1964-11-12
Abstract: 1,083,559. Aerials; radio navigation. STANDARD TELEPHONES & CABLES Ltd. Nov. 12, 1964, No. 46121/64. Headings H4A and H4D. Relates to radio beacons in which a guidance path is defined by " main " signals, radiated in a highly directional radiation pattern, the beacon also radiating " clearance " signals in a less directional radiation pattern. According to the invention, the beacon comprises an aerial radiating two main signals to define a guidance path and an aerial radiating clearance signals, the radiation pattern of the latter aerial having a null along the guidance path. A prior art azimuth guidance beacon is described, Figs. 1, 2 (neither shown), in which the clearance signal is composed from carrier-plussidebands (CSB) and sidebands-only (SBO) radiations. The embodiment of the invention may be used for azimuth or glide path guidance and reduces " bending " of the guidance path arising from clearance signal reflexion, e.g. from another aircraft; it is stated that such bending is greater the stronger the clearance CSB radiation along the guidance path. Fig. 4 shows-the clearance signal radiation pattern in the embodiment; curves 10 and 20 represent the clearance SBO and CSB radiation patterns respectively. The respective phases of 90 c/s. and 150 c/s. sidebands are reversed as between the two lobes of curve 10 but are not reversed for curve 20. The clearance signal aerial comprises a horizontallinear array of horizontal dipoles 11 to 18, Fig. 3, symmetrically arranged about the course line, the dipole spacing being 3#/4 and the array being spaced from a reflecting screen 19 by #/4. All the dipoles are connected to the source of clearance CSB signals, the figures immediately below them representing relative voltages and phases. Dipoles 13 to 16 are connected also to the source of clearance SBO signals and receive relative voltages and phases as shown in parentheses.
Patent GB-964813-A (GB)
Title: Improvements relating to counter-balanced vertically sliding windows and other panels
IPC: E05F11/42
Filed: 1961-12-16
Abstract: 964,813. Counterbalanced sliding windows. AUSTER Ltd., and W. W. SMALL. Dec. 17, 1962 [Dec. 16, 1961], No. 45146/61. Heading E1J. [Also in Division F2] A vertically sliding vehicle window pane 1 is supported on a lazy-tongs linkage 6 whose bottom links 8 slide in slots 20 in the bottom links 18 of a second lazy-tongs linkage 13 supporting a vertically sliding balance weight 16. The links 8 are centrally pivoted at 11 to a bracket 12, to which the links 18 are also pivotally attached at their ends. Specification 956,998 is referred to.
Patent GB-1299159-A (GB)
Title: Disc brake
IPC: F16D65/14
Filed: 1970-09-24
Abstract: 1299159 Disc brakes; preventing squeal TOYOTA CHUO KENKYUSHO KK and TOYOTA JIDOSHA KOGYO KK 24 Sept 1970 [29 Sept 1969] 45426/70 Heading F2E In a disc brake including a rotatable disc 10, a caliper 30 straddling a portion of the periphery of the disc, a pad 50 of friction material associated with the caliper and opposed to the disc, and an hydraulic pressure-fluid-actuated piston 70 axially movable in the caliper to force the pad into frictional engagement with the disc for braking action, the piston has an axial, cylindrical, hollow portion opening into the side of the piston adjacent the pad and disposed therein is an intermediate, cylindrical member 60. The hollow portion of the piston has a bottom surface 76 extending substantially parallel to the rotating plane of the disc and the member 60 is disposed so that the inner end surface 61 thereof is adjacent to and in slidable relation with the surface 76, and the outer end surface 62 of the member is, when the brake is applied, in frictional engagement with the pad whereby vibration transmission between the piston and pad is prevented by cutting off the vibratory integration between them. As shown, the member 60 has a bore 67 containing felt 69 impregnated with grease and a port 65, normally closed by a screw 66, through which excess grease is exuded when the piston and member are assembled; a sealing ring 64 is contained in an annular groove in the member. The pads 50 are suspended on rods 33 and are biased away from the disc 10 by a W-shaped spring 34. In modifications, (a) a resilient bellows is engaged over the port 65 and an iron disc is interposed between the member 60 and piston surface 76, oil being injected into the space defined by the bellows, member 60 and hollow part of the piston, (b) there is disposed between the member 60 and surface 76 a sintered iron member impregnated with lubricant, a plurality of balls 94, Fig. 8, supported by plates 941, or five circular plates of metal or of polytetrafluoroethylene, nylon or polyethylene alternating with plates of metal. The lubricant material may be grease, oil, or molybdenum disulphide, molybdenum disulphide or graphite, nylon or polytetrafluoroethylene powder or talc, or a combination thereof.
Patent GB-1101425-A (GB)
Title: New pyrimidine derivatives
Inventor: REGNIER GILBERT
IPC: C07D239/42
Filed: 1963-11-19
Abstract: The invention comprises compounds of the Formula I <FORM:1101425/C2/1> and the acid addition salts thereof, wherein R represents a C1- 5 alkoxy- or trifluoromethyl-substituted phenyl group, or a benzyl radical of the Formula II <FORM:1101425/C2/2> where R1- 3 each represent H, hydroxyl, a C1- 5 alkoxy or an acetoxy group or any two of R1- 3 together represent a C1- 2 alkylene-dioxy radical and R4 represents H, a C1- 5 alkyl group or a phenyl group optionally substituted by one or more of R1- 3, provided that R1- 4 are not all hydrogen; R1 represents H or a methyl group; and X and Y represent H, C1- 5 alkyl, C1- 5\t alkoxy, hydroxy or an amino group -NR11R111 in which R11 and R111 are H, C1- 5 alkyl o hydroxyethyl groups. The compounds are prepared by condensing a pyrimidine of the formula <FORM:1101425/C2/3> where Z is Cl or Br, with a piperazine of the formula <FORM:1101425/C2/4> Compounds in which R is a benzyl radical of the Formula II can be made by condensing a pyrimidine of the Formula V <FORM:1101425/C2/5> with a compound R-Z in which Z is Cl or Br. It is preferred to effect both condensations in the presence of a solvent and a hydrogen halide acceptor at 110-140 DEG C.  When products in which X and Y or one of R1- 3 are hydroxy groups are required, it is preferred to convert the hydroxy groups in the starting materials to benzyloxy or acetoxy groups and subject the final product to hydrogenation or hydrolysis. Compounds in which R is a benzyl group of the Formula II in which at least one of R1- 3 is a hydroxy group can also be prepared by reacting a benzaldehyde of the formula <FORM:1101425/C2/6> with a pyrimidine of the above Formula V and subjecting the resulting compound to catalytic hydrogenation. Therapeutic compositions having peripherical vasodilatory, analgesic and anti-inflammatory properties and which can be administered orally, rectally or parenterally, comprise as active component, pyrimidines of the Formula I or the physiologically acceptable acid addition salts thereof.
Patent GB-1247034-A (GB)
Title: Methods of electrically charging photoconductors
IPC: G03G13/02
Filed: 1968-09-26
Abstract: 1,247,034. Electrophotographic element. RANK XEROX Ltd. 26 Sept., 1968 [2 Oct., 1967], No. 45825/68. Heading H1K. [Also in Divisions G2-G3] An electrophotographic material is doped with a hole-trapping or electron-trapping impurity throughout the layer or on the surface of the layer so that when charged a surface of the layer is insensitive to radiation. Preferred materials are selenium doped with thallium to produce positive charging and selenium doped with chlorine to produce negative charging. Many other inorganic and organic photoconductors are also listed.
Patent GB-1314540-A (GB)
Title: Barrel lock suitable for a motor car door
IPC: E05B27/00
Filed: 1970-09-29
Abstract: 1314540 Locks SOC D'EXPLOITATION DES BREVETS NEIMAN SA 29 Sept 1970 [30 Sept 1969] 46303/70 Heading E2A A lock has a housing 2, Fig. 1, with a rotor 3 mounted therein. Pin tumblers 5, 6 are received in radial bores which extend through the housing and the rotor to a key-hole, and are urged radially-inwardly by means of an elastic sleeve 15. The latter is received in a recess 17, Fig. 3, formed in the housing 2 and may be slotted at 16, Fig. 2, so as to provide portions 18, Fig. 3, each of which independently displaces its respective pair of tumblers. When a key 4 is inserted, the tumblers are moved to the position shown in Fig. 3 and allow the key to be rotated.
Patent GB-952924-A (GB)
Title: Improvements in the control of electrical converters
IPC: H02M7/15
Filed: 1961-12-28
Abstract: 952,924. Rectifying. ALLMANNA SVENSKA ELEKTRISKA A.B. Dec. 28, 1961 [Dec. 31, 1960], No. 46379/61. Heading H2F. [Also in Division G3] A rectifier comprising controllable rectifying elements (as shown S.C.R.E.) fed from an A.C. supply is controlled by an oscillator (shown dotted), and the relative frequency of supply and oscillator is varied in accordance with the output in order to maintain this output constant. As shown, the rectifier feeds a motor 6 and the output voltage is compared with a reference voltage 12, the error signal being amplified at 15 and fed to a winding 91 on the output transformer 9 of the oscillator which as shown also includes transistors 7, 8. Variation in the error voltage varies the frequency of the oscillator such that the output voltage is kept constant. In alternative arrangements (a) the error signal may be derived across a bridge of linear and non-linear impedances across the output (Fig. 2, not shown); (b) the speed of the motor 6 may be regulated by deriving the error signal from a tachometer generator coupled to the motor 6 (Fig. 3, not shown); (c) the error signal may be applied not to the winding 91 but as the input D.C. supply to the oscillator (Fig. 4, not shown). Polyphase converters are envisaged and the oscillator may comprise thermionic valves. The controllable rectifying elements may be valves or thyratrons. The A.C. supply may be derived from an oscillator and in an alternative arrangement the frequency of this may be varied.
Patent GB-1024506-A (GB)
Title: Improvements relating to a bearing
IPC: F16C27/02
Filed: 1962-12-10
Abstract: 1,024,506. Bearings. E. BENZ. Dec. 10, 962 [Dec. 9, 1961; Nov. 19, 1962], No- 6583/62. Heading F2A. A plain bearing is made of low friction synthetic plastics material, nas an annular recess xtending inwardly from at least one end of the earing and has resilient means within the ecess which compresses the inner wall of the ecess towards the axis of the bore. In an nbodiment, a bearing has stepped recesses 9, ig. 1 (not shown), one of which receives a silient ring 12 therein. In other embodiments, 1 annular recess 16, Fig. 2 (not shown), minishes inwardly in cross-sectional area @d has a spring 17 therein; an annular @cess diminishes inwardly in cross-sectional area and has a resilient material 22, Fig. 3 (not shown), compressed therein by a screwthreaded ring 23; and the bearing has a hemispherical-sliding surface. In a further embodiment, upper and lower bearings 40a, 40b, Fig. 6 (not shown), are mounted in seats 41a, 41b; are retained axially by collars 43a, 43b, which are pinned to a hollow spindle passing through the bearings; and are connected by a tube 42. Springs 44a, 44b are positioned between the respective collars and bearings and allow the bearings to serve as valves when pressurized gas is received in the tube 42 from a hole 46 in the spindle. In additional embodiments, the bearings are urged towards their seats by a single spring 47, Fig. 6 (not shown); the curved surfaces of both bearings face the same direction; a resilient ring 12a, Fig. 8 (not shown), projects out of a recess 12 and engages the spindle; a resilient ring also acts as a seal; and a spring 54, Fig. 10 (not shown), forces resilient material against the spindle.
Patent GB-1533124-A (GB)
Title: Process for producing ring-opening polymerisation products of chloro-norbornene derivatives
IPC: C08G61/00
Filed: 1975-11-12
Abstract: 1533124 Polymerizing chlorinated norbornene derivatives SHOWA DENKO KK 12 Nov 1975 [12 Nov 1974] 46665/75 Heading C3P A chlorinated norbornene derivative containing at least one chlorine atom or a hydrocarbon group substituted with one or more chlorine atoms and optionally up to 50 mole per cent of one or more other polymerizable unsaturated cyclic compounds is polymerized in the presence of a ring opening catalyst comprising (A) an organometallic compound of a Group IA, IIA, IIB, IIIB, IVA or IVB of the Periodic table; (B) a transition metal compound of at least one of tungsten, molybdenum, rhenium, tantalum, and niobium and (C) water, an epoxide, acetal, orthocarboxylic acid ester, carboxylic anhydride, carboxylic acid ester, carbonic acid ester, ether, aromatic nitrogen-containing heterocyclic compound, acid amide, a compound having an N-O bond, an amine, or a phosphorus containing compound, the molar ratio of A : B : C being 0À3 to 0À0 : 1 : 0À02 to 10, preferably under an inert atmosphere of nitrogen, helium or argon at -100‹ to 200‹ C.
Patent GB-1163893-A (GB)
Title: Improvements relating to the production of Hydrocarbon Gases
Inventor: PETTIT CECIL GEORGE
IPC: C01B3/22
Filed: 1965-11-03
Abstract: 1,163,893. Making combustible gas; olefins. WELLMAN INCANDESCENT FURNACE CO. Ltd. 3 Nov., 1966 [3 Nov., 1965], No. 46670/65. Heading C5E. A reactor for gasifying a liquid hydrocarbon with steam to make hydrocarbon gases comprises at least one closed loop 11 about which the reactants circulate more than once, an inlet 12 and an outlet 13, and a source of external heat (not shown). The loop may comprise a tube 11, as shown, or two loops having a common arm, or may comprise concentric cylinders, the inner one forming one arm and the annular space the other. Reaction temperatures of 625 to 900 C. are employed, and the steam and/or the hydrocarbon may be preheated. Residence times of 0À5 to 1À1 seconds are mentioned. The outlet 13 preferably leads to a waste heat boiler (26), see Fig. 2 (not shown). Feedstocks mentioned include steam cracker tar and gas oil. Catalysts may be employed. Some examples yield considerable quantities of ethylene, with lesser amounts of propylene and butenes.
Patent GB-1066197-A (GB)
Title: Improvements relating to the electrolytic machining of metals
Inventor: WILSON JOHN FRANCIS
IPC: B23H9/10
Filed: 1962-12-13
Abstract: A workpiece surface is shaped by electrolytic machining by using in a second stage a tool which opposes a workpiece across an electrode gap,  <PICT:1066197/C6-C7/1> the tool itself having been shaped in a first stage by electrolytic machining using a model which opposes the tool across an electrode gap, the model being an accurate representation of the surface to be produced in the workpiece, and an electrolyte being forced through said latter electrode gap between the model and tool at a constant rate of mass flow of the electrolyte and the size of the electrode gap being the same in each of the two stages of the process.  Fig.7 illustrates the making of a two part tool for manufacturing turbine blades.  A model 31 of the blade with electrically conducting surfaces 32, 33 and two electrically conducting shims 34, 35, either attached to the model or supported in close proximity to it, are used to electrolytically shape parts 38, 39.  The shims serve to machine away portions of the parts 38, 39 which would not be machined by the model 31 in order to ensure that the shaped parts 38, 39 extend fully around the model.  The shaped parts 38, 39 are then used to electrolytically shape a workpiece (41) Fig.8 (not shown).
Patent GB-1363246-A (GB)
Title: Scintillation cameras
IPC: G01T1/164
Filed: 1971-10-11
Abstract: 1363246 Scintillation camera NUCLEARCHICAGO CORP 11 Oct 1971 [12 Oct 1970] 47175/71- Heading H4F An Anger-type scintillation camera having a scintillating crystal and a bank of photomultiplier tubes viewing overlapping areas of the crystal with co-ordinate computing circuitry coupled to the photomultipliers, wherein to improve the overall spatial resolution of the resulting display of the scintillations produced by impinging γ-rays non-linear preamplifiers are disposed between the photomultipliers and the computing circuitry which amplify large signals therefrom a greater amount than small signals. Specifically the input-output characteristic of each preamplifier is such that inputs signals smaller than 5% of the maximum input signal (i.e. the output signal from a photomultiplier positioned directly above a scintillation in the crystal) produce substantially no output signals and larger input signals produce amplified output signals which are proportional to the magnitude of the input signal above the 5% threshold magnitude. Each preamplifier comprises a wide band amplifier stage, a threshold amplifier stage having a preselected threshold magnitude, an integration circuit stage, and an output amplifier stage. The scintillating crystal comprises a disc of at least 15À2 cm. diameter (preferably at least 25À4 cm.) and the bank of photomultiplier tubes includes at least seven tubes (preferably at least nineteen tubes) arranged in a hexagonal array. To further improve the spatial resolution the integration time constant in the preamplifier and the delay magnitude of the delay line in each summing amplifier in the co-ordinate computing circuitry may be increased.
Patent GB-1129892-A (GB)
Title: Improvements relating to the construction of floors or roofs
Inventor: FELTHAM ARTHUR LESLIE
IPC: E04C1/40
Filed: 1965-11-08
Abstract: 1,129,892. Cast concrete floors or roofs. ATLAS STONE CO. Ltd. 11 Aug., 1966 [8 Nov., 1965], No. 47256/65. Heading E1W. A former for use in cast-in-situ floors or roofs comprises an asbestos cement channel having sides 1 diverging from the base 2 and also having transverse corrugations 3 extending from one free longitudinal edge to the other. In the sides 1, the corrugations may taper towards the free edges. Stop-ends 4, Fig. 4 (not shown) may be secured at the ends of the channels by Z-shaped clips. In use, the formers are arranged between parallel beams with their ends abutting or overlapping, the concrete slab being cast on top of the formers and beams.
Patent GB-1036770-A (GB)
Title: Improvements relating to the continuous introduction of liquid into a staple fibre band or sliver
IPC: D02G3/40
Filed: 1963-12-03
Abstract: 1,036,770. Liquid treating fibrous bands or slivers. PAVENA AG. Dec. 3, 1963 [Dec. 7,1962], No. 47738/63. Heading D1L. Apparatus for continuously liquid treating a band or sliver of staple fire comprises a guide or support for the band or sliver and means for forcing the liquid through the fibres. As shown a flat web 11 coming from a drafting arrangement passes to a guide 10 whereby it is guided into tubular form (see Fig. 4, not shown), a tube 12 carrying the treatment liquid under pressure being arranged to lie in the centre of the tube of fibres. The tubular web passes via a nozzle 14 to a tapering wire spiral 15 between the turns of which liquid may be expelled from the centre of the web. The web next passes between calender rolls 5 having side confirming plates 19 to have excess liquid expelled therefrom and to be smoothed. The expelled liquid may be collected and pumped to the pressure vessel which feeds tube 12. The spiral 15 which is surrounded by a spray guard 16 is preferably coated with an antifriction material. Alternative guides to replace the spiral 15 comprise an internally threaded tube of tapering internal diameter or a stack of discs having progressively smaller holes therein, liquid outlet channels being formed in the surfaces of the discs. In an alternative arrangement the web passed directly from the drafting roller to a wire spiral guide having an oval cross-section at its upper end the largest diameter of the oval tapering so that the cross section becomes circular at the lower end. A hood to which pressurized liquid is led covers one side of this spiral and liquid is thus forced through the fibres contained therein.
Patent GB-1346707-A (GB)
Title: Illuminated diagnostic instruments
IPC: A61B1/227
Filed: 1972-10-19
Abstract: 1346707 Lamps WELCH ALLYN Inc 19 Oct 1972 [8 May 1972] 48254/72 Heading F4R [Also in Division A5] An instrument assembly includes a battery case 16 and covers 17, acting as a handle for two electrically illuminable heads 18, 19, secured pivotally to the case so that they may be folded from a position within the case (Fig. 2) to an operable position (Fig. 1). The heads may form an ophthalmoscope 18 and an otoscope 19, each containing a lamp bulb connected via a printed circuit board to a battery 26. Each head is pivotable about trunnions, attached to a slip ring 29, located in pillow blocks 28, the head having a member 45 engaging a hexagonal hole 27 in the case and cover in the operational position. One contact 60 in the connection between the battery and bulb may be made to the end cap 41 only in the operational position, the contact otherwise contacting an insulating portion of the head. The other contact to the bulb is made via a trunnion and slip ring contacting a conductive member of the head. The bulb may be replaced by removing the end cap 41. In an alternative arrangement one of the heads may comprise a miniature flashlight.
Patent GB-1309578-A (GB)
Title: Process for purifying phosphoric acid
IPC: C01B25/238
Filed: 1970-10-14
Abstract: 1309578 Purification of phosphoric acid ALLIED CHEMICAL CORP 14 Oct 1970 [15 Oct 1969] 48854/70 Heading C1A Soluble magnesium impurities are removed from wet-process phosphoric acid containing dissolved magnesium, silicon and fluoride ions by (i) increasing, by evaporation, the phosphoric acid concentration to give an acid with a silicon content (as SiO 2 ) of <0À2% by weight based on the concentrated acid, the latter having a soluble aluminium content (as Al 2 O 3 ) and a fluoride ion content (if necessary after the addition of aluminium and/or fluoride ions) such as to provide an Al 2 O3/MgO weight ratio of at least 1À4 : 1 and a F/MgO weight ratio of at least 2À2 : 1 ; (ii) maintaining the concentrated acid so obtained at 50‹ to 100‹ C. for at least 15 hours to precipitate a magnesium-aluminium fluoride-phosphate complex, and (iii) separating the precipitate from the concentrated acid. The wet-process phosphoric acid starting material preferably has a concentration of 25-36% by weight P 2 O 5 , contains dissolved Mg, Si, Ca, Fe, Al, SO 4 <SP>2-</SP> and F- ions and is obtained by treating phosphate rock with sulphuric acid. The evaporation step (i) may be effected at 85‹ to 100‹ C. under subatmospheric pressure to produce an acid with a concentration of 45 to 54% by weight P 2 O 5 . The weight ratios of Al 2 O 3 / MgO and F/MgO are preferably from 3 : 1 to 12 : 1 and the concentrated acid preferably has a F/SiO 2  weight ratio of 10 : 1 to 20 : 1. The phosphoric aicd may be seeded before or during steps (i) and (ii) with 1-4% by weight of Mg-A1-F-PO 4  complex separated in step (iii) of a previous operation. The purified phosphoric acid may be used to prepare stable ammonium polyphosphate fertilizer solutions, e.g. by evaporating the purified acid to form superphosphoric acid, which is then diluted with water and ammoniated to pH 5-8.
Patent GB-1131316-A (GB)
Title: Stainless steel alloy
IPC: C22C38/36
Filed: 1966-11-01
Abstract: 1,131,316. Stainless steels. CATERPILLAR TRACTOR CO. Nov.1, 1966 [June 6, 1966], No.. 48974/66. Addition to 1, 052, 563. Heading C7A. A stainless steel contains 1À5%-3%C, 2À5-4%B, 15-35% Cr and balance Fe, the total amount of C and B being between 5.5 and 7%.