baber/WOPTO huggingface dataset:
Patent GB-2450010-A (GB)
Title: Piezoelectric transducer structure with sectored, annular concentric electrodes
Inventor: FAZZIO RONALD S
IPC: B06B1/06
Filed: 2007-11-27
Abstract: The transducer structure 501 for a electronic device, e.g. a microphone, comprises both an upper and a lower outer annular electrode sandwiching a layer of piezoelectric material 505. These outer annular electrodes are subdivided into sections 506, 507, 508, 509 by section gaps 510. A concentric inner electrode 503 may also be so sectioned (fig 5D). The inner and outer electrodes are separated by a gap 504 that lies in the region of an inflection point of the structure (fig 1A).
Patent GB-2465001-A (GB)
Title: Device for enriching i.c. engine intake air and an intake air filter
Inventor: HEELEY GEORGE LINDSAY
IPC: B01D46/00
Filed: 2008-10-03
Abstract: A device which can be retrofitted to petrol engines, or fitted to new engines during production, enriches the air used in the combustion cycle leading to improved fuel efficiency and a reduction in the vehicle emissions. Filtered air is drawn through a chamber 2 containing an oil based liquid A, eg upper cylinder lubricant, and is then delivered to the air intake X. The chamber 2 contains a liquid in a lower section 2B which is separated from an upper section 2A by a baffle 4 having apertures 4A. Air enters intake port 5 via a venturi 8 and passes down a tube 6 and bubbles through the liquid A. The air is withdrawn from the upper section 2A via outlet port 9. Crankcase gases may also be supplied to the engine via a pipe 14. The air filter which provides filtered air directly to the engine and to the enrichment chamber 2 comprises three boxes 7A-7C containing knitted copper mesh of decreasing mesh size.
Patent GB-2452442-A (GB)
Title: Trap for respiratory apparatus
Inventor: PAYNE SIMON ROBERT
IPC: A61M16/10
Filed: 2005-06-02
Abstract: A component (216) of a medical respiratory apparatus, said component (216) comprising a fluid conduit through which respiratory gases flow, in use, and a partition (218) within the fluid conduit, the partition (218) having a plurality of openings formed therein and being shaped so as to define a trap for collecting foreign objects that are unable to pass through the openings.
Patent GB-2459422-A (GB)
Title: Epitaxial substrate for field effect transistor
Inventor: HATA MASAHIKO
IPC: H01L21/335
Filed: 2008-02-12
Abstract: Provided is an epitaxial substrate for a field effect transistor. In the epitaxial substrate, a nitride-based group 3-5 semiconductor epitaxial crystal, containing Ga, is arranged between a base substrate and an operation layer, and the nitride-based group 3-5 semiconductor epitaxial crystal contains the following layers (i, ii, iii); (i) a first buffer layer which contains Ga or Al and a high resistance crystal layer added with a compensating impurity element of the same period as Ga on the periodic table and has a small atomic number, (ii) a second buffer layer, which is stacked on the operation layer side of the first buffer layer and contains Ga or Al, and (iii) a high-purity epitaxial crystal layer, which is arranged between the high resistance crystal layer and the operation layer, and has no additive or contains an acceptor impurity of such a small quantity as to maintain the depletion state.
Patent GB-2459426-A (GB)
Title: Location dependent calibration for distributed temperature sensor measurements
Inventor: CHILDERS BROOKS A
IPC: G01K11/32
Filed: 2008-03-20
Abstract: A method for calibrating distributed temperature sensing (DTS) systems is disclosed. The method includes: receiving temperature data associated with one or more locations along a length of an optical fiber; calculating a set of unique calibration coefficients specific to each of the one or more locations along the fiber length; and applying the set of calibration coefficients specific to each of the one or more locations along the fiber length to the temperature data for calibrated correction thereof. Also disclosed is a system for calibrating DTS data and a wellbore for providing calibrated DTS data.
Patent GB-2470970-A (GB)
Title: Control of concurrency in real time systems by claiming and testing semaphores
Inventor: YOUNG ARTHUR PHILIP
IPC: G06F9/38
Filed: 2009-10-14
Abstract: The invention concerns concurrent operations and providing methods of detecting when all are complete. The invention provides symmetrical methods of detecting completion, avoiding the need for one thread to await the completion of another. Operations may proceed concurrently generating information — a semaphore —which, when tested, indicates whether all operations within the set of run to completion at that time. The invention extends to equipment to perform a set of operations, an operation within said set to claim and to test a semaphore to determine whether said operation is the last to claim said semaphore, the outcome of the test applied within said operation to select the subsequent course of said operation. The semaphore may contain a count of the number of operations which remain incomplete. A semaphore may be held in memory accessible to all operations, each set of operations employing its own semaphore to test completion. Conditional execution of programs, within a concurrent set, is supported, completion identified only when initiation of programs is complete. One set of concurrent programs may also be used as a program within another set. The invention is based on a theoretical model descriptive of knowledge generation in physical systems.
Patent GB-348801-A (GB)
Title: Improvements in devices for punching holes in metal and like plates
IPC: B21D28/34
Filed: 1930-03-28
Abstract: 348,801. Punching. NISCHAN, J. C., 1437, Arkansas Street, Hammond, Indiana, U.S.A. March 28, 1930, No. 10008. [Class 83 (iv).] Punches.-In a device for enlarging a hole in a sheet, a punch 4 threaded upon a drawrod 11 is rotatably mounted by a thrust bearing 15 in a die member 8. A head 14 is actuated by a wrench to pull the punch into the die to remove the punching P. The punch may be shaped as shown in the Figure. '
Patent GB-145909-A (GB)
Title: Improvements in or relating to commutators for dynamo electric machines
IPC: H02K9/28
Filed: 1919-04-22
Abstract: 145,909. Chitty, H. April 22, 1919. Commutators of the radial type are composed of radial segments a, each of which has, a foot of dovetail form whereby it is secured between clamps c, d, the face a<2> of the commutator being the brush-contact surface, and the surface a<3> being provided with projections for connexion to the armature conductors b. and spaces are left between the segments, as described in Specification 121,320, for the passage of cooling-air.
Patent GB-526993-A (GB)
Title: Umbrella carrying device for bicycles
IPC: B62J11/00
Filed: 1939-03-31
Abstract: 526,993. Umbrellas. AMARU, E. March 31, 1939, No. 10054. Convention date, April 28, 1938. [Class 134] [Also in Group XXXI] A device for carrying an umbrella (open or closed) on a bicycle comprises a tubular member 6 slidably and rotatably adjustable in a sleeve 4 secured by a clip 1 to the handle-bar, the member 6 being pivoted at 11 to a quadrant 9, which carries two spring clips for gripping the handle of the umbrella and is provided with an arcuate slot 10 co-acting with a screw-pin 12 and wing- nut 13 on the member 6 to permit of angular adjustment. Each clip for holding the umbrella handle comprises a fixed jaw 8 and a movable jaw 7 mounted on a hinge joint 14 and acted on by projecting arms 16 of a helical spring, the two springs being enclosed in hinge sleeves 15 which are interlocked to enable the clips to be opened simultaneously by means of a projecting arm 7<SP>1</SP> on the upper one. When closed, the umbrella is placed in the clips with the point downwards, and is swung down parallel to the tube 6 by angular movement of the quadrant 9.
Patent GB-367614-A (GB)
Title: Improvements in processes for the manufacture of tubes or rods made of a vitreous material capable of being drawn out such as glass
IPC: C03B17/04
Filed: 1931-04-02
Abstract: 367,614. Making glass tubes or rods. MONPEURT, G., 26, Chemin Lateral, and GLARDON, A., 13 bis, Rue du Parc, both in Alfortville, Seine, France. April 2, 1931, No. 10085. Convention date, April 4, 1930. [Class 56.] A method of making tubes or rods of vitreous material, such as glass, consists in allowing molten glass to flow out of an orifice at the lower end of a funnel d, and in constantly feeding glass over the edge of the funnel by a scraper j which is moved along the edge. The funnel is mounted on a wall e in the interior of a container a into which molten glass flows through inlets b, and burners c are provided for maintaining the temperature of the glass. The level of the surface of the glass in the container is kept slightly below the level of the edge of the funnel, either by regulating the rate at which fresh glass is admitted, or by surrounding the funnel with a wall g having openings h controlled by gates i. The scraper j is attached to a screwed rod r depending from a plate k which rests on rollers l on the cover m of the container a, and the plate is rotated by a motor about an axis coinciding with the axis of the funnel. The scraper j is so shaped that it creates a wave of molten glass which flows over the edge and down the interior of the funnel. When tubing is being made, a mandrel f is supported by the plate k coaxial with the funnel d.
Patent GB-1437693-A (GB)
IPC: F02M17/09
Filed: 1974-03-07
Abstract: 1437693 Spray carburetters GENERAL MOTORS CORP 7 March 1974 [21 March 1973] 10259/74 Heading FIB The float chamber 22 of a carburetter with an air-valve 22 which is controlled to maintain a substantially constant pressure in the induction passage 12 downstream thereof has a vent passage 110 which communicates with a fuel vapour storage container 132 or the induction passage under the control of a valve arrangement 120, 150, 140, 146. The valve-operating diaphragm 140 is subject to the suction in the passage 12 through passage 134 and port 136 and when the engine is operative moves the valve disc 150 on to the seat 120 and moves from the seat 146 to vent vapour via openings 159 and the air cleaner (not shown) to the inlet 14 of the passage 12. A passage 162, 164, 170 leading to a port 172 in the passage 12 communicates with the container 132 with the valve disc 150 abutting seat 120 and causes air to be drawn through the container to purge the stored vapour. When the valve 22 is closed the port 172 is upstream of the valve and no vapour may be purged. As valve 22 is opened the suction acting on the port 172 increases until the port is completely downstream of the valve. The valve 22 is connected by a linkage (60, 64, 70), Fig. 1 (not shown), to a fuel metering rod (80) controlling a metering orifice (98). The rod (80) has opposed flats (100), Fig. 3 (not shown), which provide an increasing rod cross-sectional area towards the free end of the rod.
Patent GB-1037113-A (GB)
Title: Improvements in or relating to motion picture apparatus
IPC: G03B21/43
Filed: 1964-03-11
Abstract: 1,037,113. Cine projection apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES. March 11, 1964 [March 14,1963], No. 10287/64. Heading G2E. The Supply reel 3 of a cine projection is braked to prevent over-run by the band 2 which is actuated by electromagnet 5 energized when the motion driving the take-up reel is switched off. A similar brake operates on the feed reel when the re-winding motor is switched off, both brakes and motors being controlled by a single lever whose operation simultaneously switches from one motor to the other and releases an adjustable spring-urged disc brake during rewind.
Patent GB-1459263-A (GB)
Title: Loader vehicle in combination with a steering unit
IPC: E02F9/08
Filed: 1974-03-07
Abstract: 1459263 Shovelling machines BARKO HYDRAULICS INC 7 March 1974 [28 Nov 1973] 10301/74 Heading E1F [Also in Division B7] An articulated vehicle having a loading device, such as a knuckle boom loader 26, comprises a main frame 10 having non-steerable hydraulically driven wheels 12, 14 and a single power source E in combination with a non-powered steering unit 42 detachably pivoted to the main frame, the power source E driving wheels 12, 14, powering the loader, actuating the steering unit and operating outriggers 34, 36 on the main frame 10. The steering unit is connected to the main frame by vertical pivots 70, 74 and is moved for steering by hydraulic rams 86, 94 flanking the pivots. The steering unit wheels are mounted on an axle 112 which is pivoted about a horizontal axis to allow oscillation. The outriggers 34, 36 support the main frame when the steering unit is removed, possibly for use with a similar non-steered loader unit, and the cab C and knuckle loader are rotatably mounted on the main frame 10.
Patent GB-610272-A (GB)
Title: Improvements in ovens for baking, roasting and drying purposes
IPC: A21B1/14
Filed: 1946-04-03
Abstract: 610,272. Bakers' ovens. STYLES, W. ELLERD-. April 3, 1946, No. 10307. [Class 51(ii)] A baking oven comprises a series of superposed chambers 2 heated by sets of sealed tubes 8, 9 and 10 extending through the back wall into a common uptake 12 and terminating in combustion chambers provided with gas burners 5, 6 and 7, which may be inserted from the back or side of the oven. In the former case, the burners are set in air intakes in the form of fishtail tunnels, Fig. 2 (not shown), which are provided with slots directing the air past the burners, whereas in the latter case, the burners are housed in long rectangular tunnels, Fig. 6 (not shown), having apertures registering with the mouth of fishtail air tunnels. In either case, the whole burner assembly may be withdrawn for servicing purposes and the burner controls are linked with dampers on the air tunnels.
Patent GB-915583-A (GB)
Title: Improvements in or relating to radiators, fluid heaters or coolers, or the like
Inventor: DELANEY ERIC DENYS
IPC: F28D1/053
Filed: 1960-03-23
Abstract: 915,583. Radiators. GALLAY Ltd. March 20, 1961 [March 23, 1960], No. 10320/60. Class 64 (3). A radiator comprises a matrix 12 formed of fluid flow tubes 13 and gill plates 16, said fluid flow tubes being heated or cooled by gas forced by a fan 19 through the matrix, the depth of which at marginal portions is gradually reduced from the gas flow inlet face 17 to the outlet face 18, the marginal portions being provided with curved shields 24 which lead some of the gas through the marginal portions of the matrix and direct this gas back into the matrix from the outlet face 18. Fig. 2 is a plan of a radiator with a rectangular matrix positioned in a motor vehicle so that there is no ram effect of air through the radiator due to the motion of the vehicle. Air is drawn in by a fan 28 through ducts 20, passes through to matrix 12 to cool water in the vertical tubes 13 and leaves via ducts 21. The vertical edges of the matrix are chamfered as at 22 so that the smallest matrix depth is at the outer edges 23. Dust in the air supply is forced by centrifugal action on to shields 24 and carried by the air flow through the reduced depth portions of the matrix into vertical channels 27. Curved portions 26 of the shields divert the air flow back into the matrix, the dust remaining in the channels 27 from whence it may be removed at intervals. The air diverted back into the matrix is forced by incoming air to the region shielded by the fan hub 28, thus helping to give equalized air flow over the matrix. In a modification, Fig. 3 (not shown), the marginal portions of the matrix are stepped to give the reduction in depth.
Patent GB-527231-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D23/08
Filed: 1939-04-04
Abstract: 527,231. Refrigerators. BRITISH THOMSONHOUSTON CO., Ltd. April 4, 1939, No. 10504. Convention date, April 6, 1938. [Class 29] A refrigerator cabinet comprises inner and outer metallic shells 14. 15 with insulating material therebetween, a breaker strip 13 of relatively flexible material between adjacent edges of the shells, and a reinforcing member 17 of stiff material inserted in a channel in the surface of the breaker strip. The door 11 is of the full-width type and the breaker strip of extruded rubber has opposite longitudinal grooves adapted to engage flanges 18, 20 on the cabinet walls 14, 15 and outstanding opposed ribs 23, 24 forming the channel to receive the reinforcing strip 17 which is of non-metallic, non-hygroscopic material, e.g., synthetic' resin: Laterally offset from the strip 13 is an integral door sealing gasket 16 seating upon a U-shaped part 19 of the flange 20. The inner and outer shells of the cabinet and the door are supported in spaced relationship by non-metallic bridge pieces 21 bolted to the shells and to brackets 22 welded to the outer shell of the cabinet. The breaker strip may be applied to the door, or the door may be provided with a rigid breaker strip 29.
Patent GB-590973-A (GB)
Title: Mineral lubricating oil compositions and the production of stabilising agents therefor
IPC: C10M137/10
Filed: 1945-04-26
Abstract: Bearing corrosion, sludge deposition and piston ring sticking are inhibited in internal combustion engines by employing a mineral oil lubricant containing a minor proportion of a product obtained by reacting phosphorus pentasulphide with oleyl alcohol or ocenol in the approximate molar proportions of 1:4 at about 125-150 DEG C. for a time insufficient to produce any substantial cloudiness in the reaction product.  The product is apparently a dioleyl dithiophosphoric acid and may be used in mineral oils which contain additives that have been added for other purposes, such as detergents, pour point depressants and viscosity index improvers.ALSO:By reacting phosphorus pentasulphide with oleyl alcohol or ocenol in the approximate molar proportions of 1 : 4 at about 125-150 DEG  C. for a time insufficient to produce any substantial cloudiness in the reaction product, a dioleyl dithiophosphoric acid useful as an additive for mineral oil lubricants is obtained.
Patent GB-294188-A (GB)
Title: Improvements in or relating to methods of and means for making and securing closuresto the mouths of jars and other containers
IPC: B67B3/04
Filed: 1927-04-20
Abstract: 294,188. Thornhill, G. A., and Lethaby, W. April 20, 1927. Capsules and the like, applying.- Relates to machines for capsuling jars &c. of the type in which the covers are cut from a strip of material fed from a roll and applied to the jar with or without an additional lining. According to the invention the cutting and sealing mechanism is carried on a refracting table 10 which is shown at the top of its stroke in Fig. 1 in contact with a buffer 7 whereat the cutting operation takes place, while the sealing operation is effected at the other end of the stroke. Paper strip 12 is fed from a roll and adhesive is applied on the underside thereof by a brush 15 from a tank 14. Discs 12* of stiffer material are caused to adhere to the strip by a presser plate 16 and the complete cover is cut out of a circular knife 20. Jars to be sealed are placed on the base of the machine and are centred by spring-pressed balls 32 as the table 10 descends. When the table 10 is inverted the presser mechanism continues to descend and the cut out cover is carried by the mouth of the jar into a rubber ring 23 which is carried in sector shaped sockets on pivotal arms 24<x>. During this operation the cover is located on the jar by a resiliently supported presser disc 25. The waste presser ring 23 fastens the cover to the jar by virtue of the adhesive on the underside margin thereof and effectively seals the jar. The discs 12* are fed in from a cylindrical pile by a slide operating at right angles to the direction of motion of the strip 12, and the strip has a step-by-step motion synchronising with the reciprocatory movement of the table 10.
Patent GB-912822-A (GB)
Title: Improvements in or relating to the production of hexenes
IPC: C07C2/08
Filed: 1960-03-23
Abstract: A catalyst consisting of or containing a lamellar complex of sodium and carbon and having the formula NaC64 is used to convert propylene to methylpentene-2 at temperatures of at least 140 DEG C.  Preferably the lamellar complex is used together with metallic sodium.  Traces of aluminium, silica and iron may also be present.  Provisional Specification 912,821 refers to the use of lamellar complexes of other alkali metals as catalytic constituents, e.g. complexes of lithium, potassium, subidium and caesium, especially KC8, KC16, KC24, KC36, KC48 and KC60 or mixtures thereof.  Propylene feedstock may be pretreated with nickel on sepiolite for the removal of impurities. The catalyst may be used as a fluidized or fixed bed.  Specifications 824,917, 825,902 and 912,826 also are referred to.ALSO:In a process for the production of a methylpentene-2 propylene is contacted with a catalyst consisting of or containing a lamellar complex of sodium and carbon of formula NaC64 at a temperature of at least 140 DEG C.  When 4-methylpentene-2 is desired the reaction should be effected at 140-160 DEG C., whereas when 2-methylpenten-2 is desired the reaction temperature should be above 160 DEG C.  The reaction pressure may be superatmospheric e.g. 50-4000 lbs./sq. inch gauge.  The propylene feedstock should be free of impurities such as water, oxygen, allene and methylacetylene.  It may however be diluted with inert gases such as nitrogen, methane, ethane or propane.  The reaction may be carried out batchwise or continuously.  Other prepared specified olefines are 4-methylpentene-1 and 2-methylpentene-1.  Comparative examples are given.  Specifications 824,917, 825,902 and 912,826 also are referred to.
Patent GB-820908-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25D21/08
Filed: 1957-04-02
Abstract: 820,908. Refrigerating. HERON, A. G. March 27, 1958 [April 2, 1957; Nov. 25, 1957], Nos. 10651/57 and 36596/57. Class 29 In a sinuous evaporator coil 12 bridged by fins 13, defrosting is effected by passing a low voltage current through the coil and the fins are electrically but not thermally insulated from the coil as by a hard flexible film of a synthetic resin which may be applied by dipping or spraying the coil. As shown, the current is supplied by transformer 14 having two secondary windings connected at one end, this connection being joined to an intermediate point of the evaporator coil and the other ends of the secondaries being joined to the ends of the evaporators. In a modified form, one end of a single secondary is joined to an intermediate point of the evaporator and' the other is joined to both ends of the coil. To give differential heating, several lengths of the evaporator may be electrically connected in parallel, the intermediate point of the evaporator coil can be nearer one end than the other or different parts of the coil can be made thicker than others or of different metals. Defrosting can be terminated by a switch actuated in accordance with the temperature of the transformer.