baber/WOPTO huggingface dataset:
Patent GB-2206235-A (GB)
Title: Semiconductor device
Inventor: LANE ANTHONY ALAN
IPC: H01P1/185
Filed: 1988-06-06
Abstract: A semiconductor switching element including a FET and transmission line (11, 13) whereby the transmission line is mounted around the active channel (15) of the FET with a gate electrode stripe (17) therebetween. The transmission line (11, 13) is thus capable of being short-circuited to earth by application of a suitable electrical potential to the gate electrode. This allows construction of a microwave phase shift circuit which makes maximum use of the available area of semiconductor material.
Patent GB-2214688-A (GB)
Title: Indicating devices
Inventor: ORDONEZ GABRIEL
IPC: G09F13/04
Filed: 1988-10-24
Abstract: In a vehicle registration plate 20, at least part of the plate comprises an electronically alterable display. The display may be an LCD device of the type requiring no power to maintain the display. An electronic memory and control circuitry 22 built into the plate sets the registration number for normal display. Messages, e.g. those seeking assistance, may be displayed instead or in addition by an occupant of the vehicle operating a switch or control panel 30 to actuate circuitry 22 via a control box 26. An infra-red or microwave detector facilitates display of information regarding the vehicle stored at 22 and required by outsiders such as police. Vehicle theft may be indicated if an appropriate code is not used at starting. <IMAGE>
Patent GB-2213192-A (GB)
Title: Vehicle door locking device
Inventor: KLEEFELDT FRANK
IPC: E05B85/04
Filed: 1988-11-16
Abstract: A vehicle door locking device having a lockplate (1) and a lock (2), in which the lock has a latch (4) actuated by the lockplate, and the latch, which incorporates a journal area (5), can rotate about a pivot pin (6) and in which the latch carries a noise-reducing envelope (7) of rubber or synthetic material, the envelope (7) also surrounding the journal area (5). <IMAGE>
Patent GB-2225752-A (GB)
Title: Perspective drawing apparatus
Inventor: KENNARD FRANK
IPC: B43L13/14
Filed: 1988-12-08
Abstract: Apparatus for drawing lines converging towards a remote vanishing point, comprises a pair of straightedges or rules (26) pivoted to respective legs (12) which are connected together about an adjustable hinge. A pin (18) constitutes the hinge axis, and a pair of arms (40) are hinged at one end about an extension (34, Fig. 3) of the pin and at the other end pivoted to the legs (12). <IMAGE>
Patent GB-2229967-A (GB)
Title: Safety pen cap
Inventor: WHITE ROBERT
IPC: B43K23/12
Filed: 1989-03-30
Abstract: A pen cap adapted to provide an air passage in the event of the cap being accidentally inhaled by a child comprises a body 1, and a liner 2 held in the body by an end plug 3 which has an air duct 7. The liner has a cup-shaped portion 10 which defines a sealed enclosure around the writing tip N and is provided with air holes 18 between the cup portion and an outer end portion 12 which engages the body, so that a free air passage is defined through the cap when it is detached from the pen. <IMAGE>
Patent GB-2222927-A (GB)
Title: Stakes
Inventor: HURLSTONE GRAHAM FRANK
IPC: A01G13/02
Filed: 1989-07-11
Abstract: A hollow stake 14 for supporting a tree shelter 10 is formed of UV-degradable, glass fibre-filled nylon and has a tubular cross section to facilitate compact packing for storage and transport. At its upper end the stake 14 is provided with a series of notches 30 for receiving an upper tie 20, and at its lower end with drainage holes (not shown). <IMAGE>
Patent GB-2225477-A (GB)
Title: Liquid metal cooled nuclear reactors
Inventor: THOMASSON RICHARD KEITH
IPC: G21C15/18
Filed: 1989-11-22
Abstract: In a liquid metal cooled reactor having a circuit for secondary liquid metal coolant including a steam generator unit (10), an auxiliary heat exchanger or cooler (18) for the dissipation of decay heat on shut down of the reactor is included in the circuit upstream of the steam generator unit. Due to its situation at or above the level of entry of the secondary coolant into the steam generator unit, the cooler is effective at a high point in the circuit to promote natural convection circulation. <IMAGE>
Patent GB-2249213-A (GB)
Title: A battery
Inventor: GILMOUR ALEXANDER
IPC: H01M6/16
Filed: 1990-03-06
Abstract: A battery comprising at least one electrochemical cell in which the, or each of the, electrochemical cells includes a bipolar multilayer composite electrode member (5), which member has a layered structure comprising: - a positive electrode material (6) deposited on an electrically @ conducting foil member (7); - an electrically insulating layer (8); - an electrically conducting layer (9); and - a negative electrode (10); wherein the bipolar multilayer electrode member is formed as a single unit (5). <IMAGE>
Patent GB-2250334-A (GB)
Title: Waterheating apparatus
Inventor: GRIFFITHS RICHARD MARTYN
IPC: F24D11/00
Filed: 1990-11-21
Abstract: Waterheating apparatus of the thermal storage type comprises a vessel 1 containing a mass of stored primary hot water 2 which is pumped to and from a boiler 3 by a pump 4. Immersed in the primary hot water 2 is a high efficiency heat exchanger 8 and an auxiliary heat exchanger 7 through both of which mains cold water passes to be instantaneously heated to provide domestic hot water on demand. If such demand is relatively large, the pump 4 is activated by a flow switch 19 or 19', located in the secondary pipework and having a pre-determined flow rate actuation threshold, so as to maintain a sufficiently high flow of primary hot water 2 through the heat exchanger 8. When demand is below the threshold of the flow switch 19 or 19', however, the pump 4 is not activated and the mains cold water is heated primarily during its passage through the auxiliary heat exchanger 7. The arrangement results in lower overall heat losses and reduced pump wear compared to prior proposals. <IMAGE>
Patent GB-2250798-A (GB)
Title: Vibrator
Inventor: LIGGETT HARRY
IPC: B06B1/16
Filed: 1990-12-14
Abstract: A vibrator is switched between vibration and non-vibration modes by moving an out of balance weight 2 on rotating shaft 4 to a balanced position by turning the weight 90 DEG  on axis 5 at 90 DEG  to the axis of the shaft 4, thereby enabling the shaft to run continuously. The weight 2 is turned about axis 5 by the action of a push member 3. Mass elements 7 can be added to or subtracted from the weight 2 as desired. <IMAGE>
Patent GB-2239197-A (GB)
Title: Separating a material of interest from a mixture
Inventor: RAMANATHAN RAJEEV
IPC: G01N1/28
Filed: 1990-12-21
Abstract: The method comprises binding the material of interest to a bead (MI-bead) in a liquid medium. The MI-bead has a density greater than the aqueous medium. The density of the aqueous medium, or of a second liquid medium in contact with the aqueous medium, is greater than that of insoluble components in the medium. Next, the medium is subjected to a centrifugal force sufficient to separate the MI-bead from the other components. In one embodiment, the aqueous medium is layered with a medium of at least equal density as, and higher viscosity than, the aqueous medium prior to subjecting to a centrifugal force. The material of interest may be particulate or non-particulate.
Patent GB-2240185-A (GB)
Title: Measuring device for determining an angle of rotation
Inventor: DOBLER KLAUS
IPC: G01B7/30
Filed: 1991-01-09
Abstract: A measuring device (10) for determining an angle of rotation uses a coil former (11) which consists of two cross-sectionally approximately semicircular cores (12. 13) which are offset with respect to one another in the axial direction and also offset by 180 DEG  with respect to one another in the circumferential direction so that the two flat faces of the cores (12, 13) face one another. Onto these cores (12, 13) are wound respective coils (14, 15), which cooperate with a relatively rotatable sensing part (17) of electrically conductive and/or ferromagnetic material. As shown the sensing part (17) is constructed as a sleeve segment and covers half the circumference of the coil former (11); however, it can also be constructed as discs which are arranged at the two end faces of the cores. Measurement errors can be largely eliminated by the interconnection and arrangement of the coils (14, 15) with respect to one another. Furthermore, the winding of the coils and the assembly of the measuring device is very simple and meets production requirements. <IMAGE>
Patent GB-2242308-A (GB)
Title: Magnetrons
Inventor: ROBERTSON MARK ANDREW
IPC: H01J23/213
Filed: 1991-01-23
Abstract: A magnetron having a rising sun anode 2 with a plurality of larger and smaller anode cavities 5, 6, includes a slot 8 which is extensive in a plane transverse to the axis X-X and in which a tuning member 9 is located so that it may be moved inwardly and outwardly to control the frequency of the magnetron output radiation, the member 9 being arranged such that it can intercept one or more of only the larger anode cavities 5 by a variable amount to change their resonant characteristics. The tuning member 9 may be formed of metal or dielectric, and its leading edge may be concave, Fig. 4 (not shown). The radial lengths of the anode cavities may depend on their positions relative to the slot, Fig. 6 (not shown). A plurality of co-planar slots may be provided in the anode, Fig. 5 (not shown), each with its respective tuning member that can be synchronously or independently moved. The slot may be located mid-way along the length of the anode, Fig. 3 (not shown). <IMAGE>
Patent GB-2255624-A (GB)
Title: Lamp container
Inventor: ARCHER DAVID ROSS
IPC: F21V15/02
Filed: 1991-05-08
Abstract: A container (10) for mounting a lamp (27) relative to a lifting shaft (25) of a transportable refuse collection receptacle (24) comprises a pivotable lid (17) having a formation which cooperates with a corresponding formation at a rear of the body (11) of the container (10) so as to clamp the container (10) on the shaft (25) when the lid (17) is secured in a condition closing the container (10). <IMAGE>
Patent GB-2260564-A (GB)
Title: A restricting device
Inventor: EMERSON BEN JOHN
IPC: E05C17/36
Filed: 1991-10-17
Abstract: A restricting device for a closure including a vent 1 hingedly connected to a frame 3, the restricting device comprising a retractable latch 5 of predetermined length for mounting on one of the vent 1 and the frame 3 and a releasable receiving means 9 for mounting on the other of the vent 1 and the frame 3, the releasable receiving means 9 being adapted to accept and hold an end 13 of the retractable latch 5, wherein the closure is closed, the releasable receiving means 9 automatically accepts and hold the end 13 of the retractable latch 5, such that the closure can only be opened a predetermined distance, and wherein when the retractable latch 5 is released from the releasable receiving means 9, the latch 5 is retracted into a stored position and the closure is free to open fully. Such a device is particularly neat and compact when in its stored position, but provides an effective restricting facility and is automatically re-setting. <IMAGE>
Patent GB-2264239-A (GB)
Title: Pack of game cards bearing numbers
Inventor: HATA HIDEFUMI
IPC: G09B19/22
Filed: 1992-02-21
Abstract: A pack of game cards includes a plurality of first cards respectively indicating each number from 1 to 9, and a plurality of second cards each indicating a figure generated by multiplying together two figures, respectively indicated on arbitrary first cards. Thus, the game cards help players learn multiplication tables when they are used. In a modification, the first cards indicate each number from 1 to 12.   <IMAGE>
Patent GB-2265144-A (GB)
Title: Preformed cellular composite wall
Inventor: YEN HUI-SHAN
IPC: B28B19/00
Filed: 1992-03-11
Abstract: A preformed cellular composite wall (10) includes a molded foam body (3) made of a composition which contains water, cement, foamed and calcined clay pellets (31) and a foaming agent to decrease the density of the molded foam body (3). The pellets (31) are of an irregular shape and have uneven engagement surfaces to enhance their bonding within the molded foam body (3). A form (400) for producing the wall comprises a pair of panels (4), each comprising stacked units including a tubular member (40) with inner projections (41) and outer projections (41a). The panels (4) define with a second pair of panels (5) a space (D). Panels (5) have forked ends (50) and an interconnecting portion with inner side (51a) and outer side (51b). Asbestos boards (2) are attached to panels (4) prior to pouring of the composition for the body (3) into the space (D). <IMAGE>
Patent GB-2268351-A (GB)
Title: Motion analysis of moving images
Inventor: SAUNDERS NICHOLAS IAN
IPC: H04N7/01
Filed: 1992-06-10
Abstract: A motion analysis system is described that determines and utilises the second differential d2(CS)1dx2 of a correlation surface in identifying correlation maxima 16 that are sufficiently sharp (i.e. second differential exceeds a threshold Ths) to be valid. In a surface with more than one correlation maximum 14, 16 the system scans a complete correlation surface and determines the best (CSb) and next best (CSnb) correlation maxima in that surface. The correlation surface is rejected unless the difference between these two maxima exceeds a predetermined threshold THA and the best maximum is also the point of maximum correlation included the correlation surface. <IMAGE>
Patent GB-2268463-A (GB)
Title: Stone crate
Inventor: DOUGLASS JAMES EDWARD
IPC: B65D19/12
Filed: 1992-07-09
Abstract: This invention provides a container 1, for stone or the like, the container comprising a plurality of frame sections 2 connected together to define a restraining enclosure for the stone and which, when the container is empty, may be disassembled or folded for transport or storage. A curved container (Fig 4 not shown) is also disclosed, comprising two frame sections (5). The container is intended for use on a pallet 4. <IMAGE>
Patent GB-2260029-A (GB)
Title: Electrical switch
Inventor: GARNER JOHN PERCY
IPC: H01H19/11
Filed: 1992-09-29
Abstract: An electrical switch which may be used as an energy regulator to control the heating current to electrical heating devices such as hot plates, comprises a body (12), a cam (16) which is rotatable about a cam axis (52) extending in the front-to-roar direction of the body, and a cam follower arm (34) which extends from the cam in the front-to-rear direction. The cam follower arm is fast with a bimetal element (36) which has a heating element (40) thereon. The assembly of arm (34) and bimetal element (36) is pivotally displaceable about a pivot axis (22) rearwardly of the cam (16) whereby the cam follower arm (34) can control operation of a pair of switch contacts (24.1, 24.2) according to the rotational position of the cam (16). This configuration makes a very slim construction possible. <IMAGE>
Patent GB-2272140-A (GB)
Title: Hydroponic cultivation of plants.
Inventor: PICKFORD ROBERT JOHN JOSEPH
IPC: A01G31/02
Filed: 1992-11-05
Abstract: Plant cultivation apparatus comprises a reservoir 2 for a nutrient solution 4, a platform 6 above the reservoir, for supporting the root structure of one or more plants, and a pump 16 which lifts nutrient solution by the direct action of rising air, from the reservoir to one end of the platform. Aerated nutrient solution is thus delivered to the platform. Surplus nutrient solution drains from the platform, into the reservoir. <IMAGE>
Patent GB-2265559-A (GB)
Title: Primer applying and surface wiping apparatus
Inventor: KURIBAYASHI MASAO
IPC: B05C9/10
Filed: 1992-11-16
Abstract: A primer applying apparatus includes a primer applicator (3) which is movable along a surface of a workpiece (W) (such as an automobile window glass panel) and has a rotatable primer coating roller (13, figure 3) having an outer circumferential layer of soft resin. A robot arm (2) may be employed to support the primer applicator (3) and to move the primer applicator (3) along the surface of the workpiece (W) in rolling contact therewith to apply a primer to the surface of the workpiece (W). The primer is supplied by a supply device (6) to the outer circumferential layer of the primer coating roller when the primer coating roller rolls on the surface of the workpiece (W). A surface wiping apparatus comprises a wiper with means for handling a coiled elongate web of wiping material. Moving means are provided for moving the wiper along the surface of the workpiece with the wiping material held in pressing contact therewith via a pressing roller (93, see figure 11). Fresh wiping material is made available when the pulling device (9, see figure 11) pulls the material from the clamp (69, see figure 11), the excess used material thus pulled being removed by cutting. <IMAGE>
Patent GB-2276535-A (GB)
Title: Ultrasonic cleaning of footwear
Inventor: GETHIN VICTOR YORK
IPC: A47L23/02
Filed: 1993-03-31
Abstract: Apparatus for ultrasonic cleaning of footwear e.g. boots, while on the feet of the wearer comprises a container 6 for a cleaning liquid, a foot support 8, and at least one ultrasonic transducer 10 which may be adapted to cause cavitation within the cleaning liquid. The cleaning container of the footwear cleaning device may be integrally formed with, or attached to, a hand basin 4 so as to form a combined footwear and hand cleaning unit in which the footwear cleaning device and hand basin are arranged so that the user can wash his or her hands whilst standing in the cleaning container. The apparatus may be used in a food factory. <IMAGE>
Patent GB-2277008-A (GB)
Title: Panels for improving acoustic performance of an enclosure
Inventor: MASON MICHAEL STUART
IPC: H04R1/28
Filed: 1993-04-06
Abstract: A panel 30 for improving acoustic performance of an enclosure e.g. a loudspeaker, the panel being used to line or to form at least part of at least one wall of the enclosure, presents a series of faces 38 each being other than parallel to a major plane of the panel. The angled faces reduce the occurence of standing waves within the enclosure. <IMAGE>
Patent GB-2270114-A (GB)
Title: Internal combustion engines
Inventor: SMITH LEONARD JAMES
IPC: F01L9/10
Filed: 1991-11-18
Abstract: The inlet and exhaust valves (28, 30) of an internal combustion engine are each mounted in a recess (50, 40) in one side of the corresponding port (18, 20) and slide between a valve closed position in which the valve head (32) extends across the port, and a valve open position in which the valve head is withdrawn into the recess and leaves the port unobstructed. Each valve head is tapered between a flat face (36) on its combustion chamber (11) side, which makes gas sealing contact with a ramp (44) in the recess around the port when in the valve closed position, and a convex face (38) on its opposite side, which abuts projections (54) under the cylinder head (16). Shoulders (48) in the recess co-operate with flanges (46) on the sides of the valve head to guide the valve head. The valve head is on a valve stem (34) perpendicular to the port axis and operated by a solenoid (72) or by a fluid actuator (70) using engine lubricating oil. The valve timing is controlled by solenoids (72, 150) responsive to an electronic control unit (160) which monitors engine speed sensors (108, 116), an accelerator demand sensor (92), a temperature sensor (96) and an oil pressure sensor (98).
Patent GB-2268976-A (GB)
Title: Flow accelerating device for a pipe duct.
Inventor: SCHULZE ERWIN
IPC: B65G53/52
Filed: 1993-07-02
Abstract: A device for the acceleration of the flow of particulate material, for example flue or coal dust, conveyed in a pipe duct (5) by a gaseous medium comprises a cylindrical body (2), which incorporates an injector (6) for the blowing-in of an auxiliary fluid medium in flow direction (arrow x). The injector (6) consists of a tube which extends through the wall of the body and then in the flow direction (x) in the body. The body (2) is connected into the pipe duct (5) by way of an entry diffuser (3) and an exit member (4) of reducing cross-section defined by a convexly then concavely curved wall portion. <IMAGE>
Patent GB-2281583-A (GB)
Title: Improved cylindrical lock
Inventor: LIAO WU-CHANG
IPC: E05B27/08
Filed: 1993-09-01
Abstract: A cylindrical lock comprises a housing 1, a lower pin seat 2 mounted on the housing, a spindle 3, a plurality of springs 4, and plural sets of upper and lower pins 5. The spindle 3 is constructed by a cylinder and an upper pin seat which is annular and circumferently provided with a plurality of holes 35. The upper portion of the upper pin seat is provided with an annular wall 33 having a slit (37) or accommodating the outward protruding wing of a key. The inner portion of the wall is provided with a plurality of semicircular grooves 34 diametrically opposing the holes 35 in the upper pin seat, so that one end of each semicircular groove 34 communicates with the corresponding hole 35 in order to form a longitudinal circular hole for receiving a set of sping and cylindrical pins and the other end of each semicircular groove is formed as a groove wall 36 which can prevent the pins from being popped out. Thus, the cylindrical pins 35 can only move between the semicircular grooves 34 and the holes 35. Even after the cylindrical key is used for a long period, the slit 37 of the housing for accommodating the outward protruding wing will be widened due to the friction therebetween resulted from insertion of the outward protruding wing of the key, the pins still can not be popped out of the lock and destroy the main effect of the lock. <IMAGE>
Patent GB-2270250-A (GB)
Title: Cleaning bottles
Inventor: GRAHAM JOHN RUSSELL
IPC: B08B9/34
Filed: 1993-09-02
Abstract: A bottle cleaning device suitable for placing over a sink comprises a rectangular frame defined by a series of pipes and cross pieces 24. The cross pieces each carry a number of cleaning stations 14, each having means 26 for receiving and holding the neck of an inverted bottle, and upwardly directed cleaning arms 28 provided with spray heads 32. The device is intended to be connected to a water supply, with the possible interposition of a means 18 for dispensing a sterilising solution. <IMAGE>
Patent GB-2279001-A (GB)
Title: Cable aperture for desk
Inventor: NOZAKI OSAMU
IPC: A47B21/00
Filed: 1993-11-16
Abstract: A cable guide for an office desk comprises a rectangular frame 7 having a cap 8 pivoting at one edge by pins engaging in recesses (10, 11) in the frame. The frame fits into a cable aperture in the desk, for inwards pivoting action of the cap, which may have removable portions 17 for passage of the cable. <IMAGE>
Patent GB-2274669-A (GB)
Title: A machine arrangement for and a method of tamping a railway track.
Inventor: THEURER JOSEF
IPC: E01B27/12
Filed: 1994-01-20
Abstract: A machine arrangement (1) for tamping a track (2) consists of a first machine (4) and a second machine (5) joined together by a separable coupling (6) each of which has a motive drive (26,43) (7, 29) and a respective vertically adjustable tamping unit (9, 32). Associated with the first machine (4), are switch tamping units (9) which are transversely adjustable beyond the cross-sectional profile of the machine frame (8) and an auxiliary lifting device for gripping a rail of a branch track situated laterally adjacent to the machine (4). In use, a switch section is moved into the correct position and tamped by the first machine while in a second pass the remaining surfaces to be tamped are tamped by the separated second machine which follows in the working direction. <IMAGE>