baber/WOPTO huggingface dataset:
Patent GB-2090960-A (GB)
Title: Improvements in or relating to combustion apparatus
IPC: F23R3/02
Filed: 1981-01-10
Abstract: A method of reducing NOx emissions in an industrial gas turbine engine combustion chamber (18) Fig. 1 (not shown) comprises reducing the cross-sectional area of the primary zone (24) as compared to the secondary zone (26) thereby increasing the gas velocity and reducing the residence time of the burning fuel droplets. The combustion process is rapidly quenched by air flowing in through apertures (30, 32) to a temperature below 2000 DEG K, followed by a rapid expansion in the secondary zone (26) which increases the residence time allowing the burn- out of carbon monoxide and any unburnt hydrocarbons to take place. <IMAGE>
Patent GB-2075677-A (GB)
Title: Liquid slug projector apparatus
IPC: G01V1/02
Filed: 1981-03-26
Abstract: The liquid slug projector apparatus (9) for seismic exploration a comprises a generator (10) having a main housing (13) whose main port (17b) fluidly communicates with a liquid body (12). A first shuttle (26) and a second shuttle (61a) are slidably mounted inside the main housing. The first shuttle forms with the main housing a slug chamber (23) for confining therein a liquid slug (22). Force-producing means (8) cyclically cause the shuttles (26, 61a) to move relative to or in locked condition with each other, thereby applying during each cycle of operation an abrupt propulsion force to the confined liquid slug which becomes expelled as a very high-velocity liquid jet through the main port. <IMAGE>
Patent GB-2073810-A (GB)
Title: Improvements in or relating to a buckle
IPC: A44B11/25
Filed: 1981-04-14
Abstract: In a buckle, for a seat belt, a catch plate 10 having teeth 20, 21 adapted to engage abutment faces 18, 19 on a tongue 15 is pivotally mounted in a channel member 2. A spring biassed ejector 28 moves rearwardly when the tongue 15 is inserted in the buckle, and when the tongue has been moved by such a distance that the abutment faces 18 and 19 are located behind the teeth 20, 21, then a catch stop 36 which retains the catch in an elevated position is engaged by the ejector and moved rearwardly thus permitting the catch plate to drop, under the bias of the spring 9 to the latching position. Thus there is no possibility of the teeth 20 of the latch plate engaging only a small portion of the abutment faces 18, 19. Release is effected by pushing slider 26 causing the rotation of pivoted hooks 22, 23 with the consequent lifting of catch plate 10. <IMAGE>
Patent GB-2080236-A (GB)
Title: Belt pulley draw-off apparatus for flexible elongate material
IPC: B65H54/80
Filed: 1964-05-22
Abstract: Endless belt pulley draw-off apparatuses for drawing off flexible elongate material such as stranded cables or wires 13 from a machine disposed upstream thereof, and for placing the material into a container must be of such a configuration, due to the possibility of the elongate flexible material buckling upstream of an entry portion 10 to the container, that the point of trouble is made accessible. An embodiment of the invention solves this problem by having one of the rollers 4 for the belt 2, which is towards the entry portion, capable of being pivoted over an arc which compensates for the slack formed in the belt 2 as it is disengaged from the draw off pulley 1 by the roller 4 moving between limit positions thereof. For this purpose, the guide roller 4 is arranged on a lever arm 5, the pivot 7 of which is disposed at a laterally displaced position outside of the plane containing the axes of the two belt guide rollers 3 and 4. A further embodiment solves this problem which engages the belt 2 on the outside thereof. <IMAGE>
Patent GB-2077376-A (GB)
Title: Improvements relating to servomotor casings
IPC: B60T13/567
Filed: 1981-06-02
Abstract: A casing for a fluid pressure servomotor (11) has a radial wall (13, 23) stiffened by being made of annular box-section. <IMAGE>
Patent GB-2102471-A (GB)
Title: Mineral cutting device
Inventor: SCOTT ALEXANDER BRUCE
IPC: E21C35/187
Filed: 1981-06-10
Abstract: The device has water passages 22 leading to the exterior for jetting water for dust suppression. Each passage terminates in a frusto-conical socket 20 in which is force-fitted a jet 25. The jet has a complementary insert portion 27 encircled by a complementary malleable sleeve 40. The jet has a head 26 provided with a grippable flange 31 for turning the jet to loosen it. An axial passage in the insert portion 27 leads to an obliquely extending passage in the head 26, the passage exiting at an orifice 37 arranged to jet water at the tip 15 of a pick 14. <IMAGE>
Patent GB-2079223-A (GB)
Title: Postal Franking Meter
IPC: G07B17/00
Filed: 1981-07-08
Abstract: A postal franking meter comprises an accounting system including one, and preferably two, printed circuit boards, one 70 extending along the top of the meter and the other along one side. Print wheels are set, and, simultaneously, their values are entered by encoding switches each having stationary contacts integral with board 70 and a rotary part 46 to be set by an associated thumb wheel 1 through a rack 4 and gear 5. The accounting system includes a microcomputer and an alphanumeric display. When an item of mail is to be franked the microcomputer initiates a printing cycle, adjusts credit and tote registers and checks availability of credit and freedom from any fault condition for the next printing cycle. A door, normally sealed by the Post Office, when opened actuates a switch to allow re-funding etc. of the credit register. <IMAGE>
Patent GB-2103419-A (GB)
Title: Field effect transistor with metal source
Inventor: HOLLINGER THEODORE G
IPC: H01L29/423
Filed: 1981-08-25
Abstract: The metal source region 17 of a field effect transistor ohmically contacts the semiconductor region 13 within which the channel is induced in operation. A highly doped region may be diffused directly beneath the source electrode to improve the ohmic contact between source and semiconductor. The drain region 11, 12 forms a PN junction 14 with the region 13, and an insulated gate electrode 18, 19 overlies the surface of a V-groove and extends between the source electrode 17 and junction 14. In another embodiment an overall metal layer may be divided so that only part forms the gate electrode while the remainder forms the source electrode and extends, to form a field plate, over the outside edge of the mesa. In a further embodiment the metal source forms an ohmic contact with an underlying p-type diffused region in a flat n-type semiconductor body. A metal gate on an insulating layer overlies the channel region and the metal source.   <IMAGE>
Patent GB-2105856-A (GB)
Title: Apparatus for determining the stiffness of timber and method of grading timber
Inventor: BROOKS NORMAN
IPC: G01N33/46
Filed: 1981-09-07
Abstract: In order to measure the stiffness of timber L a known deflection 15 imparted to it by means of an adjustably positionable roller 9 disposed between two pairs of rollers 1, 2 and 3, 4 and the load necessary to produce this deflection is detected by means of a load cell 12. The rollers 1, 3 have their axes fixed and act as datum rollers while the other rollers 2, 4 are mounted at the outer ends of two pivotally mounted arms 5 and 7 whose inner ends are engaged by common adjustable stop 11. The movable rollers 2, 4 are driven rollers so that even if the timber L is too stiff to be given the full deflection by the roller 9, it will still be passed through the machine. A device 22 is provided for marking the timber in dependence upon the detected load. The drive to rollers 2, 4 is reversible so that two-pass operation can be achieved by turning the timber 180 DEG around its axes after the first pass and feeding it back into the machine. <IMAGE>
Patent GB-2089037-A (GB)
Title: Vehicle travel path indicating apparatus
IPC: G08G1/0969
Filed: 1981-10-22
Abstract: A locational data storage system is used in a travel path indicating apparatus wherein the position of a vehicle in two-dimension coordinates is obtained from the outputs from a distance travelled detecting unit and a bearing detecting unit, a continuous travel path being indicated on a screen, while locational data is stored sequentially, the storage system comprising means to calculate the location of the vehicle by adding distances taken at a given smaller unit distance, and to store the location data at the moment that the running distance comes in excess of a larger distance. By the use of this storage system the memory capacity required by the apparatus is minimised and yet there is provided a relatively high precision in approximating locational information. <IMAGE>
Patent GB-2112019-A (GB)
Title: Reduction of agglomerated iron ore
Inventor: SMITH BRIAN RICHARD
IPC: C21B13/14
Filed: 1981-12-18
Abstract: The invention provides an arrangement for the reduction of agglomerated iron ore to iron comprising the steps of charging the ore into a reaction vessel; subjecting the ore to a reduction reaction by means of a flow of hydrogen gas at a temperature in the range 500 DEG C to 600 DEG C; sintering the iron so reduced by means of a flow of hydrogen gas at a temperature in the range 750 DEG C to 850 DEG C; and discharging the sintered reduced iron from the reaction vessel. The sintered product may be cooled with hydrogen before discharge, and may also be passivated by passage of an inert gas containing less than 5% of oxygen.
Patent GB-2116501-A (GB)
Title: Retractable support device for a vehicle trailer
Inventor: BUSBY PHILIP VICTOR
IPC: B60S9/08
Filed: 1982-03-16
Abstract: A vehicle trailer retractable support device includes a telescopic support leg (1) having a hollow elongated first part pivotably securable, at or adjacent one end (1a), to a vehicle trailer (3) with an open end (16) thereof lowermost and with a second elongated leg part (8); having a foot 25, slidably mounted in the first leg part to project from the open end (16) thereof, drive means for extending the second leg part (8) into a support position or retracting it into a non-support position relative to the first leg part, at least one elongated steadying stay means (30) pivotally connected at one end (30a) to the first leg part intermediate the ends thereof or at the open end (16) and a removable and replaceable shear pin (31) for connecting the other end (30b) of the stay means to the vehicle trailer (3) in a manner such that, with the device operatively secured to a vehicle trailer in the retracted non- support position, severe impact on the foot means (25) in the general direction from front to rear of the trailer would cause the pin (31) to shear and the support leg (1) to pivot rearwardly and upwardly from the impact with respect of the vehicle trailer undersurface to minimize damage of the support leg (1) and foot mean (25). <IMAGE>
Patent GB-2096500-A (GB)
Title: Faceting machine
IPC: B24B9/16
Filed: 1982-04-01
Abstract: A faceting machine includes two motors (17, 8) of the "step by step" type, on whose shafts there are respectively mounted a workpiece holder (18) and a tool holder (7), both having a facility for universal adjustment. This makes it possible to effect a wider range of settings and to vary at will the ratio between the speed of rotation of the tool holder and that of the workpiece holder. <IMAGE>
Patent GB-2097181-A (GB)
Title: Cathodoluminescent lamps
IPC: H01J63/06
Filed: 1982-04-08
Abstract: In a cathodoluminescent lamp of the form described in Application No. 8102935, which includes (Fig. 1) a conductive anode coating 5 on the interior of the bulb wall 1, a phosphor coating 6 overlying the anode coating, a dome shaped grid 8, preferably of metal wire mesh supported on a hollow metal cylinder 9 disposed coaxially within the envelope neck, and a cathode 10 located within the grid/cylinder assembly, the cathode 10 consists (Fig. 2) of a directly heated body of metal mesh or perforated metal foil, located coaxially within the grid- supporting cylinder, supported on wires constituting the cathode leads, and having a coating 11 of electron emissive material on a surface 12 of the mesh or foil facing towards the grid. Preferably the mesh or foil is in the form of a U- shaped strip, mounted with the base of the U, which carries the emissive coating, spaced one or two millimeters from the base of the grid. The phosphor coating 6 may be covered with a reflecting layer 7 of metal or white particulate material. <IMAGE>
Patent GB-2097358-A (GB)
Title: Flow line for use in the trasnfer of fluid to or from under-water sites
IPC: E21B17/01
Filed: 1982-04-20
Abstract: A flow line system for use in the transfer of fluid to or from an underwater site comprises a first flow line arrangement (7) installed so as to extend from the water bed to near, but below, the surface, this arrangement (7) being carried by a buoyant support column that is connected to the water bed at an articulated connection (5) and that consists of rigid sections (6) that are connected in series at articulated connections (5A) so that the first flow line arrangement (7) is rigidly supported by each section (6) but can articulate at the base of the column and at the connections (5A) between the rigid sections (6); and a second, flexible, flow line arrangement (10) releasably connected to the first arrangement (7), where the first arrangement terminates near the surface, so as to extend the first arrangement. <IMAGE>
Patent GB-2101601-A (GB)
Title: Bisphosphine synthesis
Inventor: DYER DR GEOFFREY
IPC: C07F9/53
Filed: 1982-05-28
Abstract: A process for the synthesis of a bisphosphine comprises:     (i) preparation of a bisphosphonium salt, (ii) hydrolysis of the bisphosphonium salt to yield a bisphosphine oxide and   (iii) reduction of the bisphosphine oxide to yield a bisphosphine.   Some of the bisphosphines so produced are stated to be novel as are intermediate bisphosphonium salts, bisphosphine oxides and mixed phosphine-phosphine oxides, phosphonium salt-phosphine oxides and phosphine-phosphonium salts. The bisphosphines are suitable inter alia as liquids.
Patent GB-2202105-A (GB)
Title: Thermal imaging system
Inventor: OLIVER CHARLES VICTOR
IPC: H04N5/33
Filed: 1982-06-17
Abstract: A thermal imaging system, especially for missile guidance, comprises electronic video line processing means 7 for combining signals in pairs from respective elements of an IR detector device 6 in different ways to produce selectability of the displayed field-of-view without modifying the magnification of an optical system 1-4 used for receiving radiation from the scene. The scene may be scanned, in each of a series of successive frame periods, by a series of successive swathes of simultaneously executed scan lines. In one mode of operation sensor signals associated with adjacent scan lines in the same swathe are combined; in another mode the swathes of scan lines in each frame overlap and sensor signals associated with scan lines in successive swathes are combined. <IMAGE>
Patent GB-2124116-A (GB)
Title: A coating on a foundry core or mould
Inventor: HIGGINBOTHAM GORDON JOHN SPENC
IPC: C30B11/00
Filed: 1982-07-09
Abstract: An alumina rich coating on a silica core or mould used for casting single crystal, or directionally solidified castings in nickel based super alloy.
Patent GB-2124849-A (GB)
Title: Direction finding systems
Inventor: TONG DAVID ARTHUR
IPC: G01S3/54
Filed: 1982-07-29
Abstract: A radio direction finding system has an array of aerial elements (A1 to A4) linked via a variable coupling circuit (M1 to M4) to a radio receiver (4). The coupling circuit is operated, by a control circuit (1 to 3), to simulate movement of the aerial elements and the outputs of such elements are processed to give an indication of the bearing of a received signal utilising the Doppler effect. With the aim of compensating for phase shifts occurring in the receiver circuitry, in one embodiment the simulated movement occurs along different paths at different movement frequencies, or, in a further embodiment,a single movement frequency is used and the simulated movement changes alternately between different paths with smooth, continuous transitions. The aerial array may comprise four aerial elements arranged at the corners of a square and the simulated movement may occur along two orthogonal paths intersecting at the geometric centre point. <IMAGE>
Patent GB-2128806-A (GB)
Title: Pressure transducer
Inventor: GREENWOOD JOHN CHRISTOPHER
IPC: G01L9/00
Filed: 1982-09-29
Abstract: In a silicon pressure transducer the edge support 23a of the silicon diaphragm 2 is made less rigid by etching grooves 23 from the front face, and this results in a transducer with a more linear response. <IMAGE>
Patent GB-2110334-A (GB)
Title: A device for measuring wear on clutch linings
Inventor: STEINMULLER HANS-JOACHEM
IPC: B60K23/02
Filed: 1982-11-26
Abstract: This invention relates to a device for measuring the wear on clutch linings and it consists of a pin 7 which bears at one end against a piston 2 inside a slave cylinder 5, which piston 2 operates a clutch withdrawal fork 1 by way of a pressure rod 3. The said pin 7 projects out of the cylinder 5 at the other end and as the clutch lining wears the pin is pushed progressively further out of the cylinder 5. After the initial assembly or after renewal of the clutch lining, the starting position of the pin can be fixed by a ring 8 frictionally mounted on that end of the pin 7 which projects out of the cylinder 5. With progressive wear of the lining, the ring 8 and the pin 7 shift from their originally fixed positions. The distance between the two positions of the ring can be measured to indicate the amount of clutch wear. <IMAGE>
Patent GB-2137258-A (GB)
Title: Drawworks and blowout preventer control apparatus
Inventor: BRADFORD JACK
IPC: E21B34/16
Filed: 1983-03-31
Abstract: Control apparatus for preventing inadvertent operation of the drawworks of a drilling rig upon closure of an associated blowout preventer, the drawworks being at least partially operated by air from an air source connected thereto by an air conduit 10 includes control components 11, 70 for connection to the air conduit 10 and movable from a first mode, in which air is permitted to communicate with the drawworks through the air conduit, and a second mode, in which air is prevented from communicating with the drawworks. Also included are monitor components 40 for connection to the blowout preventer and the control components for sensing whether the blowout preventer is in opened or closed positions and initiating movement of the control components to the second mode upon movement of the blowout preventer to the closed position. <IMAGE>
Patent GB-2139443-A (GB)
Title: Optical packet switching system
Inventor: SCARR ROBERT WALTER ALISTER
IPC: H04L12/54
Filed: 1983-05-07
Abstract: In a packet switching system, the data bits are modulated on to a light beam, using one of several possible known techniques. Switching is accomplished in the optical switch using a SAW transducer working in the Bragg regime to direct the incoming signals to a desired trunk, or via local links. The switch may comprise a film of lithium niobate which may be piezo electrically excited to produce acoustic signals having a wavelength of the same order as the light. The light is thereby deflected, the angle of deflection depending upon the relationship between the acoustic and optical wavelengths. <IMAGE>
Patent GB-2123023-A (GB)
Title: Metal-based detergent-dispersant additives for lubricating oils
Inventor: LE COENT JEAN-LOUIS
IPC: C10M135/10
Filed: 1983-06-23
Abstract: High alkalinity metallic lubricating oil additives and a method of making them are disclosed. A magnesium alkylbenzenesulfonate and a sulfurized calcium alkylphenate are carbonated in the presence of an oil, magnesium oxide, a glycol, and an amine. The glycol, water, and sediment are then removed from the resulting medium.
Patent GB-2139199-A (GB)
Title: Apparatus for delivering bulk material, e.g. coal, from a conveyor belt
Inventor: WIRTZ MAXIMILIAN
IPC: B65G47/44
Filed: 1983-08-26
Abstract: Conveyor belt delivery apparatus includes a main chute (9) with a short section (27) at its lower end and angled thereto, the outlet (30) thereof being provided with an adjustable chute (38). The main chute (9) is rotatably adjustable about the centre of its upper opening (8) and is provided with an internal, elongate guide element, (not shown). The main chute is of tapering circular cross-section, and the plane of the upper opening thereof is at an angle relative to the plane of its lower end, as is the plane of the upper opening of the discharge section relative to the plane of the lower opening thereof. <IMAGE>
Patent GB-2126583-A (GB)
Title: Improvements in or relating to novel bridged hexahydrobenz(f)isoquinolines
Inventor: ZIMMERMAN DENNIS MICHAEL
IPC: C07D409/06
Filed: 1983-09-05
Abstract: It has been found that novel bridged hexahydrobenz[f] isoquinoline derivatives, or a pharmaceutically- acceptable salt thereof, are useful analgesic agents, having both narcotic agonist and antagonist properties, as well as psychotropic characteristics.
Patent GB-2133660-A (GB)
Title: Transponder detection systems
Inventor: O'FARRELL KEVIN
IPC: G08B13/24
Filed: 1983-11-09
Abstract: An a.c. signal from a relatively moving transponder travelling along path P is detected by an elongated receive aerial 10 which comprises two parallel loops 12, 13 connected in a figure-of-eight configuration, the path P passing along the length of loop 12. A transmit aerial (20, Figure 2 not shown) may also be provided which is of similar size and shape as the receive aerial 10 and is arranged symmetrically relative thereto. <IMAGE>
Patent GB-2132556-A (GB)
Title: Sound absorbing board structure
Inventor: HAINES CHARLES
IPC: B32B3/24
Filed: 1983-12-20
Abstract: A base board 4 of a fibrous material has on one face 8 thereof a plurality of acoustical perforations 10. Positioned over this perforated face is a vinyl layer 6 having a plurality of apertures therein, the number of apertures of the vinyl being much greater than the number of perforations in the base structure. The apertures in the vinyl sheet 6 are not all in alignment with the perforations 10 of the base board 4, but a substantial number of the perforations of the base structure are in alignment with the apertures in the vinyl sheet whereby an acoustical sound absorbing structure 2 is formed. <IMAGE>
Patent GB-2152998-A (GB)
Title: Pegs
Inventor: MORRIS BRIAN
IPC: D06F55/00
Filed: 1984-01-23
Abstract: A clothes or the like peg 1 is in one piece and comprises inner and outer jaws 5 and 6 respectively and a handle member 7 of which a part 5a forms the inner jaw 5 and which is offset to one side of the jaw gap 8, the outer jaw 6 being joined to the handle member 7 adjacent the inner jaw 5 and at the closed end of the jaw gap 8. The peg may be of resilient or rigid material, and a "nip" 9,17 may be provided for fine materials. The pegs may be formed with projections (e.g. spigots 10) and recesses to enable them to be stacked. <IMAGE>
Patent GB-2135439-A (GB)
Title: Heat exchange pipes
Inventor: BAKAY DR ARPAD
IPC: F28F13/12
Filed: 1984-01-27
Abstract: In order to improve the heat transfer coefficient of viscous liquids lubricating oils for transformers or bearings with inferior heat conductivity, flowing in the pipes 1 of heat-exchangers, the pipes are sub-divided into sections by internal baffle elements 2 lying perpendicularly to the longitudinal axis of the pipe 1. The baffle elements 2 are shaped so that they are able to exchange the laminar boundary layer flowing along the pipewall with the stream flowing in the middle of the pipe 1. In a preferred embodiment of the invention the baffle elements are performing a reciprocating motion parallel with the longitudinal axis of the pipe. <IMAGE>