baber/WOPTO huggingface dataset:
Patent GB-1459720-A (GB)
Title: Fuel control for a gas turbine engine having auxiliary air bleed
IPC: F02C9/32
Filed: 1975-02-24
Abstract: 1459720 Gas turbine engine fuel control WOODWARD GOVERNOR CO 24 Feb 1975 [16 May 1974] 7629/75 Heading F1G The invention relates to a gas turbine engine of the kind in which air may be bled off at the compressor discharge and in which means are provided to control fuel flow to the burners in dependence on the compressor discharge pressure and the bleed air-pressure. The engine shown comprises a compressor 15, combustion equipment 19 and turbine 20 which drives the compressor. Air may be bled from the compressor discharge section 37 through line 50 having a restriction 51 under control of valve 53, the bleed air-pressure PB in line 54 varying in dependence on the opening of the valve 53. Fuel supply to the burners 13 through line 11 is controlled by the control unit 10 which comprises a spool valve 25 axially movable within a housing 23 whereby the area of opening of the port 26 in the valve with respect to the fuel outlet port 29 is variable. The position of the spool valve is controlled by a bellows assembly 30; a member 40 is slowed by rod 43 to the spool valve, the member 40 having attached at its upper side a bellows 31 which defines a chamber 34 to which air at compressor discharge pressure P3 is supplied and through inlet 35, the air-pressure acting on area A 1  of the member 40. A bellows 45 is secured at the lower side of the member 40 the internal chamber being evacuated, the vacuum pressure being effective on area A2 of the member 40. The member 40 is acted on at its lower face by spring 46. The chamber 33 in which the bellows assembly is disposed is connected by line 54 to the bleed air line 50 so that the bleed air-pressure PB is communicated thereto, this pressure being effective on the annular area A 1 -A 2  of the member 40. The arrangement is such that the flow of bleed air is increased, the pressure PB is reduced and the member 40 moves downwardly; thus also the valve spool 25 moves downwardly so the fuel supply to the burners is increased.
Patent GB-1217453-A (GB)
Title: Colour television camera
Inventor: SCHNEIDER HANS-DIETER
IPC: H04N9/09
Filed: 1969-02-12
Abstract: 1,217,453. Colour television. FERNSEH G.m.b.H. 12 Feb., 1969 [14 Feb., 1968], No. 7646/69. Heading H4F. In a four camera tube colour television camera the greater sensitivity of the green tube 9, Fig. 3, is counteracted by (a) forming a green reflective strip 8a, Fig. 2a, on the otherwise neutral beam splitter 8, whereby the luminance signal L is green enhanced and the green signal G is reduced, or (b) forming strips 8b and 8c, Fig. 2b, on the beam splitter 8<SP>1</SP> which respectively reflect red/pass blue and green and reflect blue/pass green and red, whereby the luminance signal L is red and blue deprived and the red and green signals R and B are increased relative to the green signal G. Having thus produced more equal outputs from the three colour cameras, the luminance signal must be corrected for its relative green enhancement. In the embodiment of Fig. 3, using the filter system of Fig. 2a, this is done by subtracting a fraction of the green signal G from the luminance signal by means of differential amplifier 17 and 18. If the luminance channel is of higher definition (bandwidth) than the chrominance signals, said subtraction process will result in a further increase in the definition of the luminance channel.
Patent GB-1480129-A (GB)
Title: Method of obtaining high temperature resistant assemblies comprising isolated silicon islands bonded to a substrate
IPC: H01L21/762
Filed: 1975-02-24
Abstract: 1480129 Semi-conductor devices COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE 24 Feb 1975 [26 Feb 1974] 7689/75 Heading H1K In high temperature-resistant semi-conductor devices, isolated silicon islands 4, Fig. 4, bonded to a substrate 7 are made by preparing an initial wafer comprising silicon layers 1, 2, Fig. 8, having unisolated silicon islands 4 within a silicon oxide layer 3, and a further layer 9 of poly-Si, all or a surface region 11 of which is oxidized, preparing a substrate 13 having a silicon oxide-coated surface, uniting the wafer and the substrate 13 by fusing a phosphosilicate glass 12, 14 between the two oxide surfaces, and removing the silicon layers 1, 2 of the initial wafer to the level 8 of the base of the islands 4. The removal may include chemical etching to an interface 16 between an epitaxial silicon layer 2 and a bulk silicon layer 1, followed by electrolytic etching. The glass 12, 14 may be deposited as two separate layers respectively on the wafer and the substrate 13, or it may be provided separately between them and fused thereto.
Patent GB-1035797-A (GB)
Title: A method of manufacturing a whitish granular aggregate for building purposes from a crystallisable, vitreous material
IPC: C03B5/14
Filed: 1965-02-23
Abstract: In the manufacture of granular aggregate for building or roads, a mixture of a crystallizable vitreous material and quartz sand in a ratio down to 1: 5 is heated in a rotary kiln to melt the vitreous material so as to embed the sand, the material being subsequently crystallized. The sand and vitreous material may be mixed before being fed to the kiln or the sand may be injected into the kiln at a position just before the highest temperature is reached, this causing stoppage of growth of the nodules formed in the kiln.  The crystals may be formed by slow cooling in the same kiln, or preferably, by withdrawing the mixture as by quenching in water followed by re-heating in a further kiln to effect crystallization.  The mixture may contain small amounts of fluxing or nodulizing agents such as clay, soda or water-glass.  The vitreous material is preferably at least 60% SiO2, at least 20% CaO, remainder other metal oxides. Glass given is SiO2 67; CaO 25; MgO 3; Al2O3 3; Fe2O3 1; Na2O + K2O 1, all percentages by weight.
Patent GB-1183714-A (GB)
Title: Improvements in or relating to Boundary Layer Control Systems.
Inventor: WIMPENNY JOHN CECIL
IPC: B64C23/00
Filed: 1966-02-22
Abstract: 1,183,714. Boundary layer control. HAWKER SIDDELEY AVIATION Ltd. 20 Feb., 1967 [22 Feb., 1966], No. 7788/66. Heading F2R. The boundary layer of a flow of air past a surface 11 (e.g. of an aerofoil or a gas turbine air intake) is controlled by a stream of air injected from a duct 14, the air stream being made to swirl, e.g. by a fin 16 which lies in a helical plane with respect to the duct 14. There may be a series of ducts 14 across the surface each fed by pressurized air from a common channel 13, the air stream from each duct swirling in the opposite direction to the next adjacent stream. The swirling airstream is a vortex which is stated to impart energy from the main airflow to the boundary layer, thereby reducing a thickening of the boundary layer and reducing the tendency for the flow to break away from the surface.
Patent GB-1434326-A (GB)
Title: Process and apparatus for densifying powder metal compacts
IPC: B21J5/00
Filed: 1974-02-21
Abstract: 1434326 Forging GLEASON WORKS 21 Feb 1974 [20 April 1973] 7944/74 Heading B3H A powder metal compact is hot forged in a die cavity by sequential application of axial force to an end face 20 to densify a hub portion 12 followed by separate application of a further axial force to a face 22 to densify the body portion 10 of the compact. The die 30, Fig. 4, has a tooth formation 56 and a splined core rod 32 to form splines on the bore 14 of the compact during the first force application. The axial forces are applied by a punch 36 composed of a pair of coaxial punch elements 38, 40. The inner punch element 38 engages the end face 20 of the compact and the outer punch element 40 is slidable on the inner punch element under spring-bias 48. The outer punch element 40 only applies axial force to the compact after full densification of the hub portion by the inner punch element. The densified compact may be a pinion for a car differential.
Patent GB-1139403-A (GB)
Title: Improvements in or relating to dynodes
Inventor: VAUMORON JEAN ARMAND
IPC: H01J1/32
Filed: 1966-02-23
Abstract: 1,139,403. Polymerizing silicones. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. 22 Feb., 1967 [23 Feb., 1966], No. 7965/66. Heading C3T. [Also in Division H1] A coating of a polymer is formed on a substrate by bombarding the substrate with electrons in the presence of a contaminant, the nature of the contaminant being the same as that of the polymer coating to be formed. For example, if the substrate is placed in a vacuum system in which the contaminant is a silicone oil, e.g. from the diffusion pump oil, and is present merely in the atmosphere or as a layer on the substrate, then a layer of a silicone polymer may be formed on the substrate, which may be Al, Ti, Cu, Zr or Cu-Be alloy, by electron bombardment. In another example the substrate is an insulator and the polymer formed is made conductive either by using a conductive polymer, such as a magnesium organo-compound, or by evaporating a metal such as Al on to the substrate in the presence of the contaminant and simultaneously bombarding with electrons. The polymerizing electron current at a potential of 1000 volts is 7 micro amps. per sq. cm. and a deposition rate of 300 Š per hour is preferred. A coating of the polymer not less than 2000 Š thick may be used as a secondary electron emissive dynode.
Patent GB-1419233-A (GB)
Title: Apparatus for open end spinning of fibre
IPC: D01H4/40
Filed: 1974-02-21
Abstract: 1419233 Open end spinning KOSTROMSKOE SPETSIALNOE KONSTRUKTORSKOE BJURO TEXTILNYKH MASHIN 21 Feb 1974 7989/74 Heading D1D An open end spinning apparatus comprises a cover for the rotor which carries plates 11 intersecting the plane of the trough 6 of the rotor, and a curved yarn delivery tube 9 which has internal projections 15 on the curved portion engaging the yarn being formed. The plates 11 may form one or more spirals on the cover The projections 15 may be a spring fixed within the tube 9.
Patent GB-954754-A (GB)
Title: Improvements in and relating to hand shears and like cutting implements in combination with a collecting box
IPC: A01G3/02
Filed: 1963-02-28
Abstract: 954,754. Pruning &c. shears. N. BROOKE. Feb. 28, 1963, No. 8025/63. Heading B4B. Pruning &c. shears are combined with an open-topped box 22 for clippings severed by the shear blades 1, 1a, the base 23 and three upwardly-extending walls 24 of the box being carried by the blade 1a and the remaining upwardly extending wall 25 of the box being carried by the blade 1. The shears are otherwise similar to the shears described in Specification 832,644 except that (a) the inner extensions of both blades are of channel formation and (b) a stop 26 is provided on the support 2a of the blade 1a for limiting the cutting stroke of the blades. Reference has been directed by the Comptroller to Specification 832,644.
Patent GB-1219284-A (GB)
Title: Improvements in or relating to heat-treatment of steels
Inventor: GARBER SIDNEY
IPC: C21D9/46
Filed: 1967-02-21
Abstract: 1,219,284. Heat-treating mild steel. NATIONAL RESEARCH DEVELOPMENT CORP. Feb.14, 1968 [Feb.21, 1967], No.8088/67. Heading C7A. Wrought mild steel having not more than 0À1% carbon is austenitized, preferably at 1000 C., and is then quenched to below the transformation range at 100 C. to 500C. per second. Cooling may be effected by quenching in oil, or by gas jets, liquid sprays, concentrations of gas in liquid, or slurries. The process is particularly applied to steel containing up to 0À5% manganese, up to 0À05% phosphorus, up to 0À05% sulphur, up to 0À05% nitrogen, and up to 0À1% aluminium, and the product may be used in the production of tin plate.
Patent GB-213114-A (GB)
Title: Improvements in, and relating to stoves for frying
IPC: A47J39/00
Filed: 1923-03-22
Abstract: 213,114. White, A. F. March 22, 1923. Gas cooking-stoves; casings; ovens. - A stove for frying comprises a chamber for enclosing a gas burner G and the cooking-pan H to prevent the escape of fatty matter, the chamber having a base B formed of non-heatconducting material to avoid damage by heat to the table or stand upon which it is used. The doors A, A<1> are provided with openings J, J<1> to allow the handle of the pan to project through them and with inspection openings K, K<1> covered with transparent material. Shelves D, D<1> may be supported on guides E, the shelves and guides having registering slots for the passage of the gases, which may be baffled by inclined plates F above and below the slots. A hole may be provided in the base of the apparatus to allow it to be used over a gas ring or other suitable source of heat.
Patent GB-703218-A (GB)
Title: Improvements in apparatus for delivering measured quantities of substances
IPC: G01F11/04
Filed: 1952-03-31
Abstract: 703,218. Delivering measured quantities of liquids. BECKER, F. W. April 2, 1953 [March 31, 1952], No. 8186/52. Class 106(5) In a measuring apparatus for liquids or pastes, of the type having a free piston oscillated in a cylinder by the pressure of the liquid to be measured, the piston is constructed in two parts or heads 20, 21 which are axially adjustable relative to each other in order to vary the quantity of liquid measured and a pair of slide valves 6, one at each end of the cylinder 1, are moved by a double-ended lever or by a handle 15, linkage 16 and a connecting rod 14 so that, in one valve, a bore 12 and port 13 connect a supply connection 9 to the cylinder through a port 4 while a transverse passage 11 in the other valve connects a port 4 to a discharge connection 10. The piston heads 20, 21, which have sealing means 22 and are shaped at 20a, 21a to engage and close the ports. 4, are adjustably connected by means such as a screwthreaded sleeve 24 and rod 23 and a resilient prong 27 locks the heads in the adjusted position; screwdriver slots 25 are provided in each head. Removable distance pieces or other connecting elements may alternatively be fitted between the heads to vary their axial spacing. The cylinder ends 2 may be screwed on the cylinder and may be connected together by external rods.
Patent GB-901320-A (GB)
Title: Improvements relating to thermostatic control valves
Inventor: COOPER JAMES EDWARD
IPC: G05D23/02
Filed: 1960-03-08
Abstract: 901,320. Temperature-responsive actuating- elements. GAS COUNCIL. Feb. 17, 1961 [March 8, 1960], No. 8186/60. Class 64 (2). [Also in Group XXIX] A rod 8 of the material known by the (Registered Trade Mark) " Invar " is joined to a brass tube 10 and abuts a member 14 in screwthreaded engagement with a valve 5 (see Group XXIX) throttling the gas supply to an oven to keep the temperature constant. The controlled temperature may be altered by turning a knob on a spigot 11 keyed to the member 14, the valve 5 having webs 15 which engage slots 21 to hold it against rotation during adjustment.
Patent GB-1078612-A (GB)
Title: Improvements in or relating to filter elements
IPC: B01D29/11
Filed: 1965-02-25
Abstract: A yarn, preferably of cotton or synthetic fibres, is wound criss-cross fashion in successive layers on a removable mandrel on a rotating shaft (17), Fig. 4 (not shown), by being fed thereto over a guide (11) which is reciprocated longitudinally of the mandrel during winding.  During its passage the yarn is napped to bring up fine fibres on its surface.  Next, the assembly (element with mandrel) is immersed in a solution of a thermosetting bonding agent (preferably phenol-formaldehyde resin, ureaformaldehyde resin or melamine resin). Preferably the assembly is then spun, e.g. at several thousand r.p.m. to remove excess solution.  Then the assembly is supported in an oven where the bonding agent is set and cured.  Finally the mandrel is collapsed inside of, and removed from, the finished element.  The assembly may be passed through a tube after the "spinning" step to smooth down any misplaced fibres.  Reference has been directed by the Comptroller to Specification 1,037,593.
Patent GB-286476-A (GB)
Title: Improvements in and relating to therapeutic lamps or radiators
IPC: A61N5/00
Filed: 1927-03-25
Abstract: 286,476. Angus, T. C. March 25, 1927. Light, treating diseases with. - A line D or other flexible or rigid measuring device is connected by a ring E with a U-shaped wire or the like W pivoted to the supports L of a therapeutic lamp C. The curved portion of the wire W is an arc having the lamp at its centre. The line D is provided with heads, discs, tabs or other graduating devices D1 - - D5 indicating the relative intensity of radiation at various distances from the lamp, for example intensities of two, three, four and five times that, at position D1 may be indicated. When not in use the wire W falls down against stops S. In a modification a semicircular wire or two such wires on opposite sides of the lamp may be employed.
Patent GB-197919-A (GB)
Title: Suspension device for vehicles
IPC: A43B1/10
Filed: 1923-03-22
Abstract: 197,919. Soc. des Moteurs Salmson (SystÞme Canton-UnnÚ). May 20, 1922, [Convention date]. Laminar springs.-In a spring suspension particularly for a motor vehicle comprising a pair of half springs a, b having their thick ends anchored on the chassis c and their thin ends pivoted to the axle d, the stronger spring a is given a greater downward initial curvature than the weaker spring b, so that the normal static load is solely supported by the spring a, while the spring b acts as a damping spring and is subjected only to variations in the load. The connections between the springs and the axle may comprise simple pivotal connections, shackles, or, as shown, the pivoted sliding connection. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a similar suspension in which the springs are of the same strength and curvature. This subject-matter does not appear in the Specification as accepted.
Patent GB-1194371-A (GB)
Title: A Deep Water Floating Moored Terminal (Oil) Platform with Power Operated Slewing
Inventor: PALMER JOHN ELLIOTT GEORGE
IPC: B63B22/02
Filed: 1967-02-21
Abstract: 1,194,371. Mooring floating structures. J. E. G. PALMER. 21 Feb., 1968 [21 Feb., 1967], No. 8312/67. Heading B7S. A floating platform 20 roughly ship shape in plan view has a bow and a stern and built-in means whereby it may be both anchored to the sea-bed and slewed so that the heading of the platform may be varied with changing wind, wave or current. The means for anchoring the platform comprises one or more connection points C1, C3 located below the water-line from which mooring chains M1, M3 extend radially from axis 28 inboard of the platform. The means for slewing the platform is poweroperated and comprises at least two reception points H1, H3 located below the water-line adjacent the bow and the stern respectively from which slewing cables 51, 53 may extend to port and starboard of the platform. The embodiment described has four mooring chains M1-M4 loaded with weights W at intervals along their lengths and has four slewing cables S1-S4.
Patent GB-287463-A (GB)
Title: Improvements in or relating to thermionic valve arrangements
IPC: H01J19/36
Filed: 1928-03-19
Abstract: 287,463. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Hallborg, H. E.). March 17, 1927, [Convention date]. Vacuum tubes.-In a cooling system for one or more valves, the cooling fluid passes to the anode or anodes through one or more inductance coils arranged as conduits which are unifilar as regards electric current and bifilar as regards fluid flow, the fluid entering and leaving the couduits at a point at zero potential. As shown, the cooling jackets 30, 32 for the anodes are connected by inductance coils 38, 40 forming conduits for fluid which enters the coils at the point M through feeder tubes 42, 44, which are connected at a distance of at least one diameter of the coil with a source 18 of energy. The valves may be used in a push-pull transmitting arrangement. In a modification each valve jacket is connected by a double coil with the supply of fluid and the coils are connected by a conductor. The valves and coils mav be combined with a variable condenser. Specification 287,462, [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-1118034-A (GB)
Title: Independent suspension for the steered wheels of motor vehicles
IPC: B60G15/07
Filed: 1967-02-22
Abstract: 1,118,034. Strut-type suspensions. BAYERISCHE MOTOREN WERKE A.G. 22 Feb., 1967 [23 Feb., 1966], No. 8487/67. Heading B7D. In an independent wheel suspension assembly comprising a spring strut element 4 mounted at its upper end on a vehicle superstructure and at its lower end fixed to a wheel carrier 2, and secured to a lateral suspension arm 5, the steering axis 7 intersects the central vertical transverse plane of the wheel between the ground contact point 11 and the wheel axis 9, and the strut axis 8 passes through the wheel axis 9 and is inclined rearwardly at a greater angle than is the steering axis 7. The axes 7 and 8 are in a common inclined longitudinal plane of the vehicle. The large inclination from the vertical of the strut axis reduces vehicle nose-dive on braking.
Patent GB-257571-A (GB)
IPC: B23K5/213
Filed: 1926-03-29
Abstract: 257,571. Metals Production Corporation, (Assignees of Humphries, C. H.). Aug. 31, 1925, [Convention date]. Fluxes.-In the welding of iron or sheet articles the surface of the article is treated, before welding, with a solution of chromic acid. The solution is applied by dipping or with a brush or a sprayer and the surfaces are allowed to dry before welding. In an example the solution comprises 64 parts by weight of commercial chromic acid, 1 part of sulphuric acid and 267 parts of water.
Patent GB-307935-A (GB)
Title: Process for refining benzene
IPC: C07C7/171
Filed: 1929-03-15
Abstract: 307,935. Soc. du Gaz de Paris. March 17, 1928, [Convention date]. Purifying benzol.-Crude benzol is refined by passing the vapours evolved at any temperature between 75-180‹ C. through porous masses such as refractory brick or rings of pottery or porcelain impregnated with sulphuric acid. The process may be continuous or intermittent. 1-2 per cent of 66‹ BÚ. acid diluted or not by a third or a halt is suitable. After condensation, the benzol is washed with water, soda lye, and water.
Patent GB-1354863-A (GB)
Title: Densitometer
IPC: G01N9/00
Filed: 1972-02-24
Abstract: 1354863 Measuring density electrically ITT INDUSTRIES Inc 24 Feb 1972 [11 March 1971] 8542/72 Addition to 1328888 Heading G1N In a vibration densitometer of the type described and claimed in Specification 1328888, the vibrating vane 79 Fig. 8 is welded to an inner cylinder 77 which is made in one piece instead of two halves. In order to limit the effects of temperatue variations, the vane 79 and external cylinder 81 are made of a material having a smaller thermal co-efficient of expansion than inner cylinder 77.