baber/WOPTO huggingface dataset:
Patent GB-1454330-A (GB)
Title: Speed governor for an internal combustion engine
IPC: F02D41/32
Filed: 1974-06-27
Abstract: 1454330 Automatic control of speed BENDIX CORP 27 June 1974 [2 July 1973] 28568/74 Heading G3R A speed governor arrangement for an I.C. engine having an electronic fuel injection system, includes an hydraulic actuator arrangement for operating the throttle to maintain the engine speed constant which actuator uses a regulated supply of highpressure fuel to provide a force. In the embodiment shown an engine speed signal, preferably derived from a pick-up 12 associated with the engine ignition distributer, is used both in an electronic fuel injection system control 10 and after conversion to a D.C. signal is compared with a reference speed signal in comparator 84 to produce a speed error signal. The error signal is modified in function generator 86 and applied to a solenoid 90 which actuates a flow modulator 92 to regulate the flow of pressurized fuel to the actuator 45 to operate the throttle plates and control the air-flow into the engine. The throttle pedal of the vehicle is provided with a lost motion device so that the automatic control can function without moving the pedal. In a modification, Fig. 4 (not shown) the timing pulses are compared in a frequency comparator with a pulse reference signal and the fluid-flow is modulated by an on-off valve.
Patent GB-841575-A (GB)
Title: Improvements in or relating to single phase motors
IPC: H02K17/06
Filed: 1956-09-19
Abstract: 841,575. Control of A.C. motors. SCANIAVERKTYG A.B. Sept. 19, 1956 [Aug. 23, 1956], No. 28570/56. Class 38 (3). [Also in Group XXXV] A two-speed single-phase motor has main and auxiliary stator windings each consisting of two equal parts a, b and c, d respectively arranged for changing the number of poles in the relation 1 : 2 and interconnected by at least two condensers e 1 , e 3  ; at the lower pole number, the main winding parts a, b are connected mutually in parallel to serve as a working winding while the auxiliary winding parts c, d are similarly connected but are arranged in quadrature to the main winding to serve as a starting winding; at the higher pole number each winding has its two parts connected mutually in series and the two windings are connected in parallel to the line h to serve as common working windings. The change of connections is effected by a three-pole switch g and the connections f, k between the winding parts may be interconnected by a further condenser e 2  which may be short-circuited by a switch r when the motor is operating at the high pole number. In a modification the connections of condensers e 1 , e 3  are interchanged. Specification 747,237 is referred to.
Patent GB-1478315-A (GB)
Title: Pressure transducers
IPC: G01L9/00
Filed: 1974-06-14
Abstract: 1478315 Pressure transducers EMI Ltd 14 June 1974 [16 June 1973] 28733/73 Heading H1K A pressure transducer comprises an edge supported diaphragm 1, and a beam 8 secured at one end to the support of the diaphragm, movements of the diaphragm being communicated to the beam which includes or carries strain gauges, by a coupling 3 attached to it and the diaphragm. The arrangement is such that on deflection of the diaphragm the beam flexes in opposite senses at two different points. In the embodiment the diaphragm, support and coupling together constitute a unitary member turned from beryllium copper, phosphor bronze, or stainless steel. For temperature compensation beam 8, centrally stiffened by flaps 9 is attached to a ring 7 which is in turn fixed to diametrically opposed flaps 5, 6 extending upward from diaphragm supporting ring 2, this ring and the beam having the same thermal expansion coefficient as adhesively attached silicon beam 11 which has a pair of PN isolated borondiffused strain gauges, located at its upper face between flaps 9 and each end of the beam and connected to form a bridge network. In an alternative form wire gauges may be used mounted on a metal beam directly attached to ring 2 and coupling 3 to which its expansion coefficient is matched.
Patent GB-1176577-A (GB)
Title: Locking Means for Containers, especially Reel Containers
Inventor: GEIER BEVERLY WAYNE
IPC: G03B21/32
Filed: 1967-06-22
Abstract: 1,176,577. Containers for reels. COMDATA CORP. 22 June, 1967 [7 July, 1966], No. 28833/67. Heading B8P. [Also in Divisions E2 and G5] A container for reels 61 of, e.g. computer tape, comprises two sections 13, 15 and means for locking them together. The locking means comprises two inwardly-protruding portions, one of which has captive detents and the other a corresponding locking surface, and an actuator movable to a position wherein the detents are urged against the locking surface. As described, the central aperture of the reel 61 is held by resilient washers 39 described in Specification 1,126,864. The protruding portions comprise bosses defined by walls 55, 57, 73 and 41, 43, the wall 43 terminating in a looking surface 49 (see also Fig. 4). The flange 73 has apertures 75, Fig. 4, carrying detent balls 93. A ring-shaped cam 85 prevents the balls 93 from moving radially inwardly when the container is locked, and thus the balls prevent axial separation of the container sections. To open the container, a handle 81 is rotated, causing the cam 85 to turn until flat portions 97 of the cam surface coincide with apertures 75, thus allowing the balls to move inward radially, Fig. 4. A pin and slot device 101, 99 limits the rotation of cam 85. A window (83) (see Fig. 1, not shown) in the handle unit 79 permits markings on wall 57 to be viewed. These indicate that the container is locked or unlocked. A resilient seal 31 keeps the container space 17 dust-free. A cover 51 closes the depression formed by the lower boss. Circumferential ribs 35, 37 facilitate stacking of the containers.
Patent GB-1121892-A (GB)
Title: Fuel or breeding element for a nuclear reactor
IPC: G21C3/32
Filed: 1966-06-28
Abstract: 1,121,892. Fuel elements. KERNFORSCHUNGSANLAGE JULICH DES LANDES NORDRHEIN-WESTFALEN e.v. 28 June, 1966 [29 June, 1965], No. 28890/66. Heading G6C. A fuel element comprises a can containing a loose filling of particles of fuel material, which particles are each coated with a manysided substantially spherical layer of pyrolytic carbon and/or a carbide or oxide, the can being closed in a vacuum-tight manner. The particles may be of VC 2 . The thermal conductivity of the particle bed is substantially increased by the particles having many-sided coatings as opposed to spherical coatings, and may be further increased by filling the interstices set up in the loose bed with helium under atmospheric or elevated pressure. In the embodiment described, the particles are contained within a hollow casing of annular cross-section.
Patent GB-427632-A (GB)
Title: Process for the stabilisation of liquid hydrocarbons especially motor fuels
IPC: C10G45/32
Filed: 1933-10-19
Abstract: Relates to the gum stabilization of hydrocarbon products, particularly motor fuels, without substantial reduction of their octane number; and consists in treating such hydrocarbon products in the vapour phase with gases consisting of or containing free hydrogen, while in contact with hydrogenating catalysts resistant to poisoning by sulphur, at elevated temperature and with a partial pressure of oil vapour between 40 and 80 per cent, the time of contact being not more than 50 seconds.  The partial pressure of free hydrogen is, preferably, at least 20 per cent. With strongly hydrogenating catalysts pressures below 30, e.g. 10 atmospheres may be employed, with less active catalysts, pressures of 50, 100, 200 atmospheres or more may be used.  Temperatures of at least 275 DEG C., e.g. 300--400 DEG  C., are employed; but for initial materials consisting substantially of aliphatic hydrocarbons lower temperatures, e.g. 200--275 DEG  C., may be desirable.  The materials may be pretreated with adsorbents, e.g. bleaching or Fuller's earth, diatomaceous earth, silica gel, active carbon or coke.  Suitable catalysts are heavy metals of the sixth group of the periodic system, especially molybdenum and tungsten; but chromium and uranium and their compounds or sulphur-immune compounds of tin, titanium, vanadium, rhenium, manganese, zinc, cadmium, aluminium, iron, nickel or cobalt, e.g. sulphides may be employed.  The catalysts may be deposited on carriers.  Gases containing free hydrogen may comprise mixtures of hydrogen with nitrogen, carbon dioxide, hydrogen sulphide, water vapour, methane &c., or water gas.  As initial materials, benzines derived from cracking, low temperature carbonization or destructive hydrogenation operations may be employed; also benzol, toluol, kerosene and neutral portions of coal tar oils having a boiling range of benzines, or of safety aviation or marine fuels. Examples are given of the treatment of gasoline and benzines using tungsten disulphide or molybdenum sulphide as catalyst. Specifications 22147/14, 300,900, [both in Class 91], and 379,335 are referred to.
Patent GB-798434-A (GB)
Title: Fuel elements for nuclear reactors
Inventor: BLAINEY ALAN
IPC: B22F7/08
Filed: 1950-11-27
Abstract: 798,434. Powder metallurgy. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 27, 1951 [Nov. 27, 1950], No. 28911/50. Class 82(1) [Also in Group XL(a)] A method of producing a tubular body 2 of fissile material completely sheathed in a protective substance 1 of low thermal neutron absorption cross-section, comprises compacting layers of the protective substance in powder form over the outer and end faces and in the space between the inner face of the tubular body and a core member conforming to the inner face, while the whole is heated to a sintering temperature of the protective substance, the core being of a nature such that under the conditions of compaction it has the quality of deforming and/or flowing to transmit isotropic pressure. In a preferred method, a uniform layer of beryllium powder is laid on the bottom of a cylindrical die and a tube of uranium is introduced and disposed between the die and a core member, which may be of lead surrounded by a sheet of steel or nickel, or may be of copper. The uranium tube may be slit along its length in one or more places, and powdered beryllium is added to fill up the slits, to fill the spaces between the uranium and the walls of the die and the core, and to provide a layer over the uranium equal to that placed at the bottom of the die. Tamping of the powder may be found desirable to reduce the contraction on compaction, or it may be desirable to pre-form the inner and outer walls of the sheath and possibly the end caps by cold compaction of the beryllium powder mixed with a polythene wax. The upper compression member of the die is brought into position and the charge subjected to a pressure of 10 tons per square inch while the die and contents are heated to 800‹C., e.g. electrically. To avoid oxidation of the beryllium and manium, the beryllium may be coated with a hydrocarbon oil, or an atmosphere of argon may be maintained during the heating; if preforms containing polythene wax are used, the necessary protective atmosphere will be supplied by the wax. When lead is employed as the core the plungers of the die are preferably water cooled to prevent molten core metal being forced out of the die. After the die has cooled the sintered product is removed and, where lead is used for the core, is heated to the melting point of lead so that the core will flow out; the steel sheet surrounding the lead may be removed by machining or by dissolving it in nitric acid. Where copper is used for the core it may be removed by machining and dissolving the residue in nitric acid. Instead of beryllium, zirconium niobium or nickel may be used as the coating for the fissile material. Specification 790,991 is referred to.
Patent GB-1285330-A (GB)
Title: Centrifugal casting mould and method for producing same
IPC: B22D13/10
Filed: 1971-06-21
Abstract: 1285330 Mould; making casting moulds FRIED KRUPP HUTTENWERKE AG 21 June 1971 [20 June 1970] 28949/71 Headings B3A and B3F [Also in Division C7] A centrifugal casting mould has inner and outer metallic tubes 2 and 1, and an intermediate tube 4 of granulated metallic material. The intermediate tube 4 may also contain one or more bars in the form of a framework or lattice, or one or more helically wound strips. The thickness of the inner tube 2 is preferably within the range 3 to 10 mm., that of the intermediate tube between 5 and 15 mm., and that of the outer tube 1 between 15 and 40 mm. The mould may be made by first forming the intermediate tube 4 by introducing granulated metallic material into an auxiliary tube and passing through a stripper to define the layer thickness of granulated material and then effecting a partial melting down of the material by the action of a welding head, forming a tube 2 of metallic material on the internal surface of the tube 4 by build-up welding and then forming the outer tube 1 by build-up welding. Alternatively the outer tube 1 may be formed first and the material for the intermediate tube 4 introduced thereinto. The latter is then partly melted and the inner tube 2 formed by build-up welding. All the tubes are formed of steel but each has a different composition from the others.
Patent GB-1164991-A (GB)
Title: Riot-Control Apparatus.
Inventor: BRYANT PETER JAMES ROBERT
IPC: C06D7/00
Filed: 1965-07-08
Abstract: 1,164,991. Tear-gas bombs. DEFENCE SECRETARY OF. 24 Aug., 1966 [8 July, 1965], No. 29015/65. Headings F3A and F3C. [Also in Division C1] The riot-control apparatus of Specification 967,660 is modified in that the complete charge consists of o-fluoro-, o-chloro-, o-bromo-, onitro, o-cyano-, or o-hydroxybenzol-malononitrile as before, but admixed with a self-combustible composition which comprises a polyester resin and an oxidizing agent. Preferably a proportion of combustible organic fuel such as lactose, sucrose, or wheat starch is added. The ortho-substituted benzal malononitrile is entrained in the gas evolved by the admixed composition, leaving sufficient of it undecomposed to be effective. Proportions are given in examples.
Patent GB-1490409-A (GB)
Title: Liquid valve
IPC: F16K5/20
Filed: 1975-07-10
Abstract: 1490409 Valves MASCO CORP 10 July 1975 [29 Nov 1974] 29019/75 Heading F2V In a water tap a spherical valve member 32, having a slot 34 in its surface, is rotated by a handle 48 to control flow between an inlet 14 and an outlet 30. A rubber seal 18 in the inlet is held in contact with the valve member by fluid pressure, an elongate slot 20 therein running parallel to the axis of rotation of the valve member. A rib 40 on the valve member 32 prevents displacement of the seal. An elongate opening 54 in a template 52 for a sealing gasket 50 defines the plane of movement of the handle 48. In an alternative embodiment, Fig. 5 (not shown), there is a circular opening (66) in the seal 18 instead of the elongate slot.
Patent GB-976936-A (GB)
Title: Improvements in and relating to fluorescent tube fittings
Inventor: STEVENS RICHARD WILLIAM
IPC: F21V7/00
Filed: 1961-08-11
Abstract: 976,936. Fluorescent discharge lamp fittings. THORN ELECTRICAL INDUSTRIES Ltd. Nov. 9, 1962 [Aug. 11, 1961], No. 29028/61. Heading F4R. [Also in Division H2] A fitting for fluorescent discharge tubes comprises means for supporting and making electrical connection to the tube and a curved specular reflector extending the full length of the tube and having an opening along the whole length of and above the tube, the width of which is a substantial fraction of the tube diameter, the shape of the reflector being such that emission of light in directions more than 60 degrees to the vertical is much less than that in direction less than 30 degrees to the vertical, substantially no light being specularly reflected back to the lamp, and the fitting being characterized in that the reflector is formed of one or more plastics mouldings having a silvered inner surface. Preferably, at least these parts of the reflector above a horizontal plane through the tube axis are given the shape of an involute. In a fitting for two tubes 10, each tube is supported by lampholders 11 provided with slots 13 so that the tubes can be inserted by dropping them into the holders with their contact pins passing through the slots. The reflectors 17 are formed by a number of plastics mouldings silvered on the inner surface and cemented together, the mouldings having openings 16 at the top of approximately the diameter of the tubes. The reflector may be made up of separate components having a total length equal to that of the tube. At each end of each of the component parts of the reflector, a panel 18 having horizontal serrations or flutings is provided. The serrations may be in the form of horizontal portions and portions inclined at about 20 degrees to the vertical. The control gear for the tube may be mounted above the reflector.
Patent GB-445567-A (GB)
Title: Diaphragm valves
IPC: F16K7/12
Filed: 1934-10-11
Abstract: 445,567. Diaphragm valves. SAUNDERS INVENTIONS, Ltd., Beresford House, Main Street, Johannesburg, South Africa, and SAUNDERS, P. K., 5, Tettenhall Road, Wolverhampton. Oct. 11, 1934, No. 29122. [Class 135] A " streamline " diaphragm valve of the type described in Specifications 321,892, [Class 135], 362,084 and 434,664 is actuated by a cam mechanism so that it can be quickly moved from the fully-open to the fullyclosed position by turning an actuating member through less than one revolution. A cam 28 with an actuating handle 35 is rotatably mounted on a transversely arranged pivot 29 on the valve casing and bears upon a tappet 31 screwed on a rod 33 which is attached to a diaphragm supporting member 17 for the diaphragm 12. A spring 26 together with the pressure of fluid tends to keep the tappet 31 in contact with the cam surface and the valve open. Anticlockwise rotation of the handle 35 closes the valve, the last portion of the cam surface 36 being concentric so that the valve is positively held in the closed position. Specifications 14498/85, 13034/93, 22753/12, [all in Class 135], 376,702 and 443,226 also are referred to.
Patent GB-483917-A (GB)
Title: Improvements in or relating to roof-supporting means for use in mines and other underground workings
IPC: E21D15/38
Filed: 1936-10-27
Abstract: 483,917. Mine - roof supports. FISHER, 0., and SMITHSON, H. F. Oct. 27, 1936, No. 29143. [Class 20 (ii)] A mine-roof support comprises an upper bearing beam a with I-section depending portions b which are adapted to slide under pressure between stilt-portions d and parallelly disposed T-bars h. The stilt and T-bars are clamped together at their upper ends by clamping-plates f and bolts g, one of the plates of each pair being provided with a lip k to engage the upper end of the stilt-bar by which it is supported, while the other plate of each pair engages the upper end of the cut-away web of the T-bar. Wooden packing or a wedge e is used between the T-section bar band stilt-bar d on each side. The stilt-bars d mav be connected by a lower cross-bar c, or may be fixed to independent base-plates. Specification 460,844 is referred to.
Patent GB-1041253-A (GB)
Title: Improvements relating to the preparation of chromium compounds
Inventor: VESSEY CLIFFORD ALFRED
IPC: C01G37/00
Filed: 1963-07-23
Abstract: <PICT:1041253/C1/1> Chromium compounds are produced from a chromium-bearing ore by roasting the ore with an oxide, hydroxide or carbonate of an alkaline earth metal, for example calcium or barium, or of magnesium (or with more than one of these compounds) to yield a roasted mix in an atmosphere in which the partial pressure of oxygen is at least 30% greater than the partial pressure of oxygen in air at atmospheric pressure. The alkaline earth metal or magnesium compound is in excess, preferably 30% to 100% in excess, of the amount required to form chromate with the chromium present in the ore. At least the latter part of the roasting may be carried out in an atmosphere of substantially pure oxygen; preferably, the material that is roasted is preheated and partially oxidized by a mixture of combustion gases and oxygen, and the oxidation is completed with substantially pure oxygen. Preferably, the roasted mix is cooled or partly cooled in an atmosphere in which the partial pressure of oxygen is appreciably greater than the partial pressure of oxygen in air at atmospheric pressure.  When the ore is roasted with lime, optionally with a minor proportion of an oxidation promoter, for example soda ash, the roasted mix may be leached with an aqueous solution (1) of sodium chromate, which may have been obtained by leaching with water the roasted mix obtained by conventionally roasting chromium-containing ore with soda ash alone, in the presence of carbon dioxide to yield an aqueous solution of sodium dichromate; (2) of chromic acid, or chromic and sulphuric acids, to yield an aqueous solution of calcium dichromate; or (3) containing dissolved ammonia and dissolved carbon dioxide to yield an aqueous solution of ammonium chromate which is saturated with lime to form an aqueous solution of calcium chromate.  Roasting may take place in a furnace, Fig. 1, comprising two concentric vertical shafts 1 and 2, refractory bricks 4 sealing the top of the annular space 3 between the shafts. The furnace is lagged with asbestos wool 5.  At the top of the inner shaft is a flue 6, in the side of which is a hinged door 7 through which the roasting mix, preferably in pellet form, is charged.  At the bottom of the annular space are gas burners 8. The bottom of the inner shaft, into which oxygen is introduced through pipes 11, is closed by a table 9 mounted on a vertical screw 10 to allow discharge of the roasted mix.  Openings 12 in the wall of the inner shaft allow the products of the combustion in the lower part of the annular space to enter and flow through the upper part of the inner shaft.  The roasting mix essentially undergoes a two-stage reaction, being first preheated and partially roasted in an atmosphere enriched in oxygen in chamber A, and then roasted in an atmosphere of substantially pure oxygen in chamber B.
Patent GB-399026-A (GB)
Title: Improvements in or relating to containers for tobacco ash and other small refuse
IPC: A24F19/00
Filed: 1932-10-19
Abstract: 399,026. Ash-trays. WISEMAN, S., 75, Paul Street, Finsbury, and BAGGETT, C. R., 106, Beresford Road, Walthamstow, both in London. Oct. 19, 1932, No. 29262. [Class 130.] Relative rotary movement between the receptacle 3 and the tray 2 forming a lid uncovers an opening 2a. The opening is normally closed by a cone or dome 4. Projecting rods or grooves 6, constituting cigarette rests, m a y be moved along the undulating upper edge of the receptacle, or in inclined slots in its wall. The tray may be either raised or lowered to uncover the opening.