baber/WOPTO huggingface dataset:
Patent GB-2173660-A (GB)
Title: Paging receiver
Inventor: POLIAKOFF ALEXANDER
IPC: H04B1/26
Filed: 1985-03-28
Abstract: A paging receiver includes a superheterodyne circuit with a mixer 12 for mixing a first frequency received signal (from an antenna 10) with a signal from a local oscillator 13. An intermediate frequency signal appears at the output of the mixer 12 and either this signal, or a second received signal (from an antenna 21) at the same frequency as the intermediate frequency signal, is further amplified and decoded, depending on the setting of a switch 15. The further amplification can include a second superheterodyne stage including a second local oscillator 16 and a second mixer 17. Such receiver can operate at two different frequencies, and can therefore be made suitable for both area wide and on-site use. <IMAGE>
Patent GB-2162928-A (GB)
Title: Airgun pellet dispenser
Inventor: VERTANNESS J A
IPC: F42B39/00
Filed: 1985-06-04
Abstract: The pellet dispenser has a pellet storage disc 2, with radial pockets, which can be hand revolved abort a shaft 1. A cap 3 covers the pockets in the storage disc and can also be hand rotated about the shaft 1. The whole apparatus can be attached to a rifle by bonding the block 5 to the rifle stock. The storage disc is loaded with pellets, one at a time, by dropping them in through an opening 4 in the cap (in its upside position) and the pellets are dispensed, one at a time by rotating the disc till they fall out through the opening in the cap (in its downside position) into one's hand. The rotational resistances of the disc 2 and cap 3 are adjustable by screws 6, 7. <IMAGE>
Patent GB-2160884-A (GB)
Title: Luminescent material
Inventor: MARKKU LESKELA
IPC: C09K11/08
Filed: 1985-06-28
Abstract: A luminescent borate matrix has the general formula La, Y Eu<3+> (Mg, ZN)B5O10, wherein the lanthanum may be replaced in part or completely by yttrium and wherein the Eu<3+>, La/Y ions and Mg/ZN ions form linear arrays, the borate ions between then forming two-dimensional lattices in which La/Y ions and Eu<3+> ions are coordinated with 10 oxygen atoms, the Mg/Zn ions being located in an octahedron formed by 6 oxygen atoms, the matrix being activated by M<3+> activators in the place of La/Y ions and M<2+> activators in the place of Mg/Zn ions, M<3+> being Tb<3+> and possibly Gd<3+>, Ce<3+> and/or Bi<3+>, and M<2+> being Mn<2+> or Eu<2+>. Since mutual interaction and disturbance of the luminescent ions is minimal, it is possible to obtain several emission colours (e.g. blue, green and red using Eu<2+>, Tb<3+>, Eu<3+> and/or Mn<2+>). The material is therefore useful in low-pressure mercury lamps.
Patent GB-2177073-A (GB)
Title: Laying paving blocks
Inventor: SCAGNELLI JOHN EDGAR
IPC: E01C19/52
Filed: 1985-06-28
Abstract: An array of blocks arranged in a herringbone pattern is produced by apparatus (Figure 4) comprising two sets of rams (13, 17) arranged at right angles to each other. The sets of rams operate alternately to push blocks (15, 19) into position, in herringbone pattern, on a table (8) and the arrays of blocks are then stacked to form pallets. A machine (Figure 8) for paving a surface has a chute (44) onto which arrays of blocks are fed in succession from pallets (68) on a platform (42). The blocks form a continuous strip on the chute (44) and slide down onto the surface to be paved as the machine moves over the latter. The machine moves in steps, each corresponding in length to the length of an array of blocks, and can also be used to deposit a layer of sand prior to the blocks and, subsequently, to embed the deposited blocks.
Patent GB-2189005-A (GB)
Title: Engines
Inventor: PARKER DAVID ALEC
IPC: F02F3/00
Filed: 1986-04-08
Abstract: An engine includes a ceramic piston 10 reciprocating within a ceramic cylinder 11. Since ceramic materials have much lower coefficients of thermal expansion than the metals of which pistons and cylinders are customarily made, the clearance between the ceramic piston and the ceramic cylinder is small, possibly 25 microns. Upper and lower piston rings 18, 20 are provided which, together with the piston skirt 15, and auxiliary seals define enclosed regions or cavities 24 on both the thrust and non-thrust faces of the piston. A passage 23 is provided for the supply of a pressurised gas, such as air, to the cavity to provide supporting gas film for the motion, as the air leaks past the upper and lower piston rings. The gas can be supplied from the combustion chamber or from a separate source. <IMAGE>
Patent GB-2195227-A (GB)
Title: Multi-crop seed decorticator
Inventor: TAINSH JOHN ARCHIBALD RAMSAY
IPC: A23N5/00
Filed: 1986-09-17
Abstract: The decorticator is for harvested and cleaned seeds ranging from coffee cherry, and tree nuts to small cereal and legume seeds in their hulls. The decorticating action takes place between pairs of flat-treaded pneumatic rollers 13A, 13B kept apart only during operation by the downward flow of seeds, which force and maintain a flexible gap to suit the species of seeds being decorticated. The rollers are mounted on driven axles 12A, 12B at different speeds but their peripheral movements are downward at the flexible gap. The axles are mounted on cross member 11 in a rigid frame 10, so forming a module which can be stacked above another module when necessary. Preferably axle 12B can be moved laterally to obtain the desired pressure between the rollers. The seeds are fed from hopper 14 at a rate controlled by valve 15 and spread out in channel 16 by vibrator 17. <IMAGE>
Patent GB-2180799-A (GB)
Title: Ruler
Inventor: SYED AHMAD TUN SYED NASIR
IPC: B43L7/00
Filed: 1986-09-23
Abstract: A ruler has an elongate roller 56 attached to it with its axis of rotation parallel to the straight edge and its periphery close to the plane of the underside of the ruler. The periphery of the roller at its upper side is accessible over at least most of its length to allow manual pressure on it during rolling. The roller carries marker lines 60 and edge markings 61 which can be aligned with fixed marks 51 to facilitate production of hatching lines, whilst a diametral hole 60 is located at the centre of the protractor markings. The ruler body may be provided with inclined slots for cross-hatching, and also with stencil apertures. <IMAGE>
Patent GB-2189857-A (GB)
Title: Sealing leaks in pipes and pipe joints
Inventor: RICHARDSON ARTHUR WILLIAM
IPC: F16L55/16
Filed: 1987-02-05
Abstract: This invention concerns packing seals for leak sealing clamps suitable for on line leak sealing. The packing seals (26) are suitable for use between a sealing clamp (18) and a flange (16) or pipe being sealed, and fit by compression as well as by bonding to surfaces. The packing seals preferably comprise woven mineral or synthetic fibres impregnated with a thermosetting resin, particularly one that sets at a high temperature. The seals 26 are heated after assembly of the clamp 18 by, for example, the heat of the pipeline. The sealing clamps 18 comprise two halves bolted together and having grooves 24 for the seals 26. <IMAGE>
Patent GB-2189136-A (GB)
Title: Dishwashing machine door
Inventor: MENZEL WALTER
IPC: A47L15/42
Filed: 1987-02-19
Abstract: A door for a domestic appliance e.g. a dishwashing machine comprises an outer door member 5 and an inner door member 6 interconnected by means of projections 13 on the outer door member, which are engageable in recesses 14 in the inner door member, the arrangement being such that after inter- engagement of projection in recess fastening is effected by relative sliding movement of the members. <IMAGE>
Patent GB-2186967-A (GB)
Title: Oven door
Inventor: WILKINSON THOMAS S
IPC: F24C15/02
Filed: 1987-02-23
Abstract: An oven door comprises spaced front and rear panels defining an air inlet at the bottom of the door (arrow A). The door additionally has a top member 6 (e.g. provided by the door handle 19) and side members 4 together with hinges 7a. Each of the side members 4 has an air outlet aperture 5 communicating with the interior of the door so that, when the door becomes heated, air passes by natural convection through the air inlet at the bottom of the door to cool the interior of the door and then out through the sides of the door. <IMAGE>
Patent GB-2286045-A (GB)
Title: Helicopter recognition
Inventor: GREENWOOD MICHAEL JOHN
IPC: G01H3/08
Filed: 1987-03-21
Abstract: Acoustic helicopter recognition comprises producing by FFT from an acoustic signal received over a time interval a difference function D(f) which includes signals in bands of frequencies ft and fm known to include respectively a helicopter tail rotor the main rotor and at least some harmonics of it. D(f) is defined from a source function S(f) produced by the FFT and a background function derived from S(f) by averaging function levels at surrounding frequencies for each frequency. For the bands of frequencies fm and ft main and tail rotor functions are formed most simply from the values of D(f). For each frequency for which a rotor function value exceeds a threshold a candidate ratio is formed with each threshold-exceeding frequency of the other rotor and compared with a stored ratio for known helicopter types to effect detection and type identification independently of variations in absolute rotor frequencies. Preferably at least the main rotor function is defined as the mean of the value of D(f) at the fundamental frequency and harmonics thereof to eliminate non-harmonic sources and the main rotor function is defined for higher frequency resolution than D(f). <IMAGE>
Patent GB-2204288-A (GB)
Title: Means for immobilising road vehicles
Inventor: MCGOUGH PHILLIP
IPC: B60R25/09
Filed: 1987-05-02
Abstract: The wheel restraint comprises a base to lie on the road surface adjacent a road wheel 10 of the vehicle; first restraint means 17, 18 operatively connected to the base to prevent, when in an operative disposition, substantial forward and rearward rolling motion of the wheel on the ground: lateral restraint means (23, 24, 26, 27, Fig. 3) operatively connected to the base to prevent, when in an operative disposition, the restraint being withdrawn laterally away from the wheel; and lock means (not shown) to prevent dis-assembly of the wheel restraint from its operative disposition. <IMAGE>
Patent GB-2193843-A (GB)
Title: Medium voltage switches
Inventor: AUTON GEOFFREY
IPC: H01H33/64
Filed: 1987-07-24
Abstract: A single, earthed, axially immovable shaft 12 carries at least one switching blade 10 fast thereon. The switching blade has two identical arms which are spaced angularly apart from one another, the arms extending radially from the shaft. For each switching blade on the shaft, there are at least three terminal contacts 14, 16, 18 spaced angularly apart from one another and lying on a circle 22 centred on the shaft axis. Rotation of the shaft results in a simultaneous double make or double break between the arms and the relevant terminal contacts. A ring main unit having a number of such switching arrangements is also described, with three parallel shafts each bearing three blades and positioned in a SF6- filled housing. <IMAGE>
Patent GB-2291541-A (GB)
Title: Radar beam-steering apparatus
Inventor: LAWRENCE RICHARD VINCENT
IPC: H01Q3/26
Filed: 1987-10-01
Abstract: The apparatus processes the outputs of a strapdown radar phased array mounted in the nose of a homing missile and generates missile-to-target look-angle rotation-sensitive measurement residuals for a missile-to-target sightline spin-rate estimator, the outputs of which are used to guide the missile. The array steer direction is updated by transverse projection corrections ¦y - @¦,¦z - @¦, for the deviation between the target sightline (R Fig. 1) and the current array look direction (L Fig. 1), the corrections being formed using sum, and azimuth and elevation difference signals derived from the signals incident onto the array. A further embodiment (Fig 3) comprises a discrete phase shifter and electronic angle tracker and includes means for removing bias terms caused by the phase quantisation. Thus, smooth tracking between discrete beam positions can be achieved. <IMAGE>
Patent GB-2201552-A (GB)
Title: Adapter card mounting in a low profile microcomputer
Inventor: ANSELL DANIEL FREDERICK
IPC: G06F13/40
Filed: 1987-10-27
Abstract: In a low profile microcomputer, adapter cards are mounted horizontally in order to be able to use adapter cards designed for earlier, higher, machines. The cards are coupled to the microcomputer planar board by an extender card which extends vertically from the planar and has sockets extending horizontally when the card is in position. The adapter cards have edge connections which couple to these sockets. A removable bridge device is coupled between the top of the extender card and a vertical wall of the microcomputer to minimize horizontal movement of the extender card. For adapter cards which do not extend fully between the front and rear walls of the microcomputer, a channelled support arm, which fits over an end of a card, and is removably mounted on a vertical wall of the computer for slidable engagement with the card.
Patent GB-2213447-A (GB)
Title: An oscillatory fin propulsion system for ships or boats
Inventor: CAMPION HENRY JAMES
IPC: B63H1/36
Filed: 1987-12-11
Abstract: An oscillatory fin propulsion system for a vessel comprises a flexible fin 15 coupled, through a ball and socket coupling (21) (Fig 4 not shown) mounted within a housing 16, to one end of a tail shaft 12. The other end of its tail shaft 12 is pivotably connected to a shaft 13, which in turn is coupled to a vertically movable drive shaft 14. In use a claw 17 may be withdrawn to release the housing 16 and a lock pin 22 withdrawn to release the shafts 12, 13, whereby the shafts may be pivoted relative to one another to withdraw the fin 15 within the hull 23 (Fig 2 not shown). <IMAGE>
Patent GB-2214578-A (GB)
Title: A differential mechanism
Inventor: PARSONS DAVID
IPC: F16H48/14
Filed: 1988-01-22
Abstract: The differential comprises a drive input element 40 two outputs cam members 16, 17 rotatable about an axis A, each said member having a single annular cam surfaces 22, 23 thereon of undulating form arranged such that the cam surfaces on the cam members converge towards each other, and a plurality of cam followers 28. The followers have cam engaging end surfaces 29, 30, 32, 33 for imparting drive from the input element 40 to said output cam members. Relative contra rotation of said output cam members causes the cam followers to slide axially. The cam followers 28 are elongate in the direction of axis A and are slidably supported throughout virtually their entire length by the drive input element 40. The followers 28 may be arranged closely adjacent each other to provide a degree of mutual support. The angle P of the line cam faces may be different to provide different torque outputs. The cam may consist of a pattern which repeats around the cams periphery. <IMAGE>
Patent GB-2201846-A (GB)
Title: Connector for distribution boards of telecommunication exchange
Inventor: STEINER EWALD
IPC: H01R11/00
Filed: 1988-02-02
Abstract: The connector (1, 4) is a small elongate printed circuit board, having at one end plug-in tongues (5) which can be inserted between contact springs (10) of a distribution board. insulation piercing connecting devices (4) are soldered to the circuit board (1) to lie flat for the connection of electrical lines to contact pads (3) formed on tongues (5) via conductor tracks (2) on the circuit board (1). The connection and disconnection of the lines to and from the insulation piercing connecting devices (4) is so simple that the connector can be used for change-over operations in the exchange. <IMAGE>
Patent GB-2204834-A (GB)
Title: Improvements in or relating to thermal label printers
Inventor: EAGLE CHRISTOPHER RAYMOND
IPC: B41J25/304
Filed: 1988-05-16
Abstract: In a thermal printer the printing element array (23) is supported on a carrier 22 which is accepted in a holder 20 and retained therein by axial insertion of a pin 26. When so mounted the carrier is able to pivot through a limited angular range about the pin, and is biassed by a pneumatic arrangement (28)(30) towards the substrate to be printed upon. The whole printhead assembly (20, 22, 23,) is axially slidable along rods (19) from the head changing position (shown in Fig 4) to the operating position. <IMAGE>
Patent GB-2222061-A (GB)
Title: Coil apparatus
Inventor: BRADLEY JOHN
IPC: A01B29/04
Filed: 1988-08-10
Abstract: An earth working apparatus has a flexible helical coil (12) mounted on a frame (11) for rotation about its longitudinal axis. In operation the coil rotates about a substantially horizontal axis by the effect of contact of the earth with the coil as it is dragged across the ground, for example by a tractor. A means for cleaning the coil (12) comprises a plurality of cleaning and camming bodies (22, 22a, 27, 27a) supported on a shaft (18) which extends substantially parallel to the longitudinal axis of the coil and is mounted on the frame (11) to be reciprocable generally towards and away from said coil. The cleaning and camming bodies (22, 22a, 27, 27a) protrude into, and engage, the coil and are arranged to produce a camming action between said bodies and the coil to move the shaft (18) away from the coil (12) against the action of biassing means (24). The reciprocation of the shaft enables the cleaning and camming bodies (22, 22a, 27, 27a) which protrude into the coil for cleaning, to be moved out of any potential jamming position.
Patent GB-2217218-A (GB)
Title: Transformable block toys
Inventor: NIKAIDO TERUO
IPC: A63H33/06
Filed: 1988-09-27
Abstract: A transformable block toy includes a main body segment and at least one movable segment movable between retracted and extended positions with respect to the main body segment. With the movable segment(s) retracted, the toy forms a building block, e.g. a disc, a triangular prism or a rectangular parallelepiped. With the movable segment(s) extended, the toy simulates a vehicle, e.g. a train, a car, a helicopter, a truck or a plane.
Patent GB-2228090-A (GB)
Title: Magnetic resonance method
Inventor: YOUNG IAN ROBERT
IPC: G01R33/561
Filed: 1989-02-01
Abstract: This invention relates to a known magnetic resonance method wherein, after excitation of magnetic resonance in nuclei in a cross-sectional slice of a body to be examined, a first gradient magnetic field Gy having a periodically reversing gradient in a first direction across the slice is applied in conjunction with a series of pulses of a second gradient magnetic field Gx in a second direction across the slice orthogonal to the first direction. 
<??>The free induction decay signals 3 and rephasing signals 5 emitted by the nuclei as the first and second gradients are applied are sensed, the rephasing signal reversed to form, in effect, further free induction decay signals 7, and the first and further free induction decay signals arranged in a two dimensional array to give free induction decays for two orthogonal directions. Data relating to the planar region are then acquired by subjecting the signal array to a two-dimensional Fourier Transform process. 
<??>The invention provides an improvement to such a method comprising varying the time between successive pulses of the second gradient Gx, thereby effectively to apply a spatial filter to the data for a given rate of data acquisition. 
<IMAGE>
Patent GB-2218140-A (GB)
Title: Device for stopping vehicles
Inventor: LOWNDES ROY BASIL WALTER
IPC: E01F13/12
Filed: 1989-05-05
Abstract: A hollow elongate body 10 is mounted with an upper surface flush with the road surface. Two sets of spikes 38 are detachably mounted in sockets carried by respective shafts 32 and 34 pivotally mounted in the body 10. The shafts are selectively pivotable to move the spikes between an inoperative position in which they lie wholly within the body 10 and an operative position in which they project through an opening in the upper surface of the body 10. In the operative position, the spikes can lodge in the tyre of a vehicle passing over the body 10 and are disengaged from the latter to cause tyre deflation. To assist in deflation, each spike may be barbed, hollow, open at its socket-adjacent end and have a passage opening adjacent its tip. In an alternative embodiment, the device is mounted in or deployed across the road and the spikes are pivotally mounted on a spring biassed shaft so as to be pivotable into the inoperative position by vehicles travelling in one direction over the body, but to cause tyre deflation in the case of vehicles passing in the opposite direction over the body. <IMAGE>
Patent GB-2245300-A (GB)
Title: Architectural units eg for glazing
Inventor: JONES DAVID WILLIAM
IPC: E06B3/267
Filed: 1990-06-22
Abstract: This invention relates to architectural panels. and in particular edge encapsulated panels. To protect the encapsulating material (12) used, especially from ultra violet radiation, and strengthen the periphery of the panel, a frame comprising a plurality of rigid frame elements (14, 16), which, in the finished product, cover the major portion of the exterior surface of the edge encapsulation, is used as a mould for formation of the edge encapsulation and is secured to the edge encapsulation. The invention is especially applicable to encapsulated double glazing units (4). <IMAGE>
Patent GB-2246523-A (GB)
Title: Carbonation apparatus
Inventor: COOK CHRISTOPHER MICHAEL
IPC: B01F3/04
Filed: 1990-08-02
Abstract: Carbonation apparatus using a regenerative pump 49 and a pre-mix chamber 47 to inhibit large carbonation gas bubble size. The regenerative pump including a grooved impeller member (25) arranged to rotate in a steam of water and carbonation gas to enhance association and absorption to produce carbonated water. A proportion of the carbonated water output from the pump may be re-circulated back to the pre-mix chamber. The carbonation gas is introduced to the water stream in the pre-mix chamber using a simple feeder tube (33) with holes or perforations (35) or using a negative pressure technique such as Venturi spout or carburettor. <IMAGE>
Patent GB-2236954-A (GB)
Title: Improvements in golf putting clubs
Inventor: TOOVEY HARRY
IPC: A63B53/04
Filed: 1990-09-17
Abstract: A golf putting club has a head in the form of a rectangular faced block with a front or striking face 11, a rear face 12, top face 13 and bottom face 14. A bore 23 extends vertically into the head from top face 13 to a chamber 22 which contains a marker in the form of a faceted zircon chip 21 behind the sweet spot 18 of the striking face 11. The chamber 22 is open to the rear via a glazed window 24 to admit light. The chip 21 reflects light which is visible down bore 23 when a user's head is correctly positioned above. Alternatively, the marker could be an electric bulb or light omitting diode, powered by a solar cell or a miniature mercury cell battery. <IMAGE>
Patent GB-2236706-A (GB)
Title: Wrapping and sealing machine
Inventor: BORIANI SILVANO
IPC: B29C65/18
Filed: 1990-09-28
Abstract: The machine (1) is designed to enfold substantially parallelepiped packs (2) in single transparent wrappers (3), and comprises an indexing wheel (5) provided with radial pockets (6) each designed to accommodate one pack together with its wrapper, which is folded to the point where the pack becomes completely enveloped save for an area of each end face (34) lying perpendicular to the axis of the wheel (4). The pockets (6) are enclosed laterally by corresponding pairs of tongues (14) disposed normal to the axis of rotation, and indexed through a station (26) at which one longitudinal flank of the part-enveloped pack is engaged by a heat-seal device (27); the ends of the tongues (14) farthest from the wheel axis carry reaction pads (15) that operate in conjunction with the heated plate (38) of the device, of which the length is substantially equal to the full width of the wrapper (3), both measured parallel with the axis of rotation of the wheel (5). <IMAGE>