baber/WOPTO huggingface dataset:
Patent GB-2254813-A (GB)
Title: Grinding wheel dressing device
Inventor: HARMAN HENRY
IPC: B24B53/095
Filed: 1991-04-17
Abstract: The device comprises a manifold housing 2 arranged to receive a mounting member 5 which holds a dressing element 4. The mounting member and manifold housing are provided with a respective bore 3 and fluid communication means 7, 8 arranged to direct a coolant fluid from an external source to the dressing element. Securing means is provided for relatively securing the mounting member and manifold housing. The device enables the dressing element to be effectively cooled during dressing of a grinding wheel and inhibits undesirable thermal stresses being set up in the dressing element. <IMAGE>
Patent GB-2244400-A (GB)
Title: Circuit providing dv/dt immunity
Inventor: KINZER DANIEL M
IPC: H03K17/687
Filed: 1991-05-13
Abstract: A pulse filter (93) is connected between a high voltage level shift circuit (59) which produces output pulses in a pattern determined by an input logic circuit (50-58) and the high side output circuit (94-101) which controls the production of power MOSFET or IGBT gate signals or the like. The pulse filter (93) immunizes the circuit against false operation duo to the fast dv/dt transients. The pulse filter (93) includes inverters for squaring an input signal and a CR delay element for increasing the rise time of the pulse so that pulses derived from transients are too small to drive the following stage and hence blocked. A pulse generator (80) derives set and reset pulses from the logic level of inputs (at 10, 11) and level shifted (at 59). Elements (61-70) relate to low voltage switching circuit. High voltage switching circuit (100, 101) drive power MOSFET's or IGBTs in a load circuit. Detectors (102, 70) prevent operation when supply voltage is low. <IMAGE>
Patent GB-2244414-A (GB)
Title: Heating
Inventor: COOPER VICTOR
IPC: H05B6/10
Filed: 1991-05-23
Abstract: A heated conduit (3) is used with an oil pipeline (1) so as to heat the oil and thereby lower its viscosity.   In one embodiment an electrical conductor (4) inside a conduit 3 is attached to the outside of an existing pipe (1) either by winding or laying it laterally. The conductor (4) has an alternating electric current flowing through it and the electric current generates a magnetic field (5) which heats the wall (30) of conduit 3 by way of dipolar excitation and thus heats pipe (1). In other embodiments the heating element may be laid within the pipe or formed integrally therein. <IMAGE>
Patent GB-2256519-A (GB)
Title: Lottery/gaming apparatus and methods
Inventor: GALLOWAY WILLIAM
IPC: G07C15/00
Filed: 1991-06-08
Abstract: A lottery/gaming machine 10 comprises a cabinet 11 which houses a VDU screen 12, an alpha-numeric keyboard 13, a ticket printing machine 14, having an output slot 15, a coin dispenser 16 for dispensing coins into a coin tray 17, a coin slot 18 for input of coins, instant prize indicators 19, pay-out option button 20, start/stop button 21, cable sockets 22 and a computer 23. The computer is programmed to generate random permutations of 2 to 6 eg three letters and display these on the VDU screen 12 and to commit to a memory which permutations have been generated already so that no permutation is provided more than once. Alternatively a pre-programmed chip, disc or tape having random permutations of letters thereon may be loaded into the computer 23 and permutations, in a predetermined order, for display on the VDU screen, may then be read therefrom. The printer 14 is linked to the computer 23 and/or VDU 12 such that permutations of letters, amongst other things may be printed onto a ticket. <IMAGE>
Patent GB-917846-A (GB)
IPC: C07C17/38
Abstract: 917,846. Tri -  and perchloroethylene. PITTSBURGH PLATE GLASS CO. Aug. 2, 1961 [Aug. 24 ,  1960], No. 27986/61. Drawings to Specification. Class 2(3). Trichloroethylene and perchloroethylene are recovered from a gas stream containing these and water and which may also contain hydrogen chloride by contacting the gas stream with an upwardly rising vaporous mixture of trichloroethylene and perchloroethylene while continuously providing above the contact point of the gas stream and the rising vaporous mixture a downwardly flowing liquid mixture of hydrocarbon chlorides containing trichloroethylene and boiling at or below the boiling point of trichloroethylene, removing the water (  HCl) as an upwardly rising vapour and collecting the condensed trichloroethylene and perchloroethylene in the substantial absence of water. The initial gas stream may be that obtained in the catalytic vapour phase oxidation of symmetrical tetrachloroethane. Specification 793,205 is referred to.
Patent GB-2265001-A (GB)
Title: A backdraught shutter for a ventilating fan
Inventor: WRIGHT BRIAN WILLIAM
IPC: F24F7/013
Filed: 1992-03-12
Abstract: A backdraught shutter for a ventilating fan defining an air flow path through the fan is designed to close off the air flow path when the fan is not operational. The shutter comprises a plurality of blades (2,3,4) mounted upon a supporting member for pivotal movement between positions corresponding to the closure and opening of the air flow path through the fan. The blades (2,3,4) tend to the closed position under the action of gravity when the shutter is in a first, predetermined position and the shutter is provided with means for retaining the blades in the closed position when the fan is in a second, different orientation and the fan is not operational, the retaining means permitting automatic movement of the blades to the open position when the fan is switched on. The shutter may be formed integrally with the fan or formed as a separate accessory. <IMAGE>
Patent GB-2254901-A (GB)
Title: Radially expansible and axially collapsible sleeves
Inventor: PAUL GRAHAM DONALD
IPC: F16B13/06
Filed: 1992-04-21
Abstract: A sleeve (10) which is radially expansible and axially collapsible, is press-formed from stainless steel sheet or other suitable material and without machining operations to provide a unitary component. The sleeve (10) is formed as an annular collar (12) from which extend a plurality of wings (14) attached to the collar by struts (16). The wings (14) are preferably shaped to give the sleeve (10) a cylindrical periphery. The struts (16) collapse under axial loading to shorten the axial length of the sleeve (10). The sleeve (10) is particularly useful in anchor bolts (650). <IMAGE>
Patent GB-2266750-A (GB)
Title: Sheet-metal centrifugal pump casing.
Inventor: CLIFFORD FRANK GRAHAM
IPC: F04D29/44
Filed: 1992-05-07
Abstract: A centrifugal pump has a pump casting (6) in which a pump shaft (1) is mounted to be driven by an electric motor. The shaft (1) mounts an impeller (9) having arcuate radial passages (10) therein through which fluid entering an axial inlet (11) is caused to flow by rotation of the impeller. A collector ring (12) around the radially outer edge of the impeller (9) is formed by two trough-shaped pressings (12a, 12b) of stainless steel sheet or plate to form a torpid with a very smooth interior which provides minimal resistance to flow of liquid around the collector ring (12). <IMAGE>
Patent GB-2267604-A (GB)
Title: Housing for control unit components
Inventor: WOODNUTT JOHN
IPC: H05K5/02
Filed: 1992-06-03
Abstract: A housing for electrical components, such as a control unit for a lighting system comprises a base 12 and a cover 13 both bent from sheet metal. The base includes a bottom wall 14 and peripheral walls 15 and 16. Two T-shaped tabs 18 project upwardly from the centre of each end wall 16. The cover has a top wall 20 and peripheral walls 21 and 22. Slots are formed in flanges 23 projecting from the end walls 22 of the cover. The slots cooperate with the T-shaped tabs to hold the cover in position with the fastening arrangement set below the level of the top of the base. The cover carries electrical components 50 which are electrically connected to the terminals 30 on the base by pin and socket connectors which also serve to locate the cover transversely relative to the base, the sockets being capable of limited lateral movement. <IMAGE>
Patent GB-2268865-A (GB)
Title: Fish support appliance
Inventor: ANDERSON BRIAN
IPC: A01K97/20
Filed: 1992-07-17
Abstract: A fish support appliance, e.g. for use by anglers, or fish specialists, is composed of a framework with a pair of side rails (1) (FIG.2) connected at their ends to pairs of legs (3) which engage on the ground with the aid of feet (5). The legs (3) can be collapsed together or swung out to assume their supportive position. A sheet of flexible material (10) is suspended from the rails (1) and from cords (6) (FIG.2) extending between the rails. The material (10) acts like a cradle to support a fish while a restraint cover (8) can be stretched over the material (10) to prevent the fish from leaping clear of the appliance. <IMAGE>
Patent GB-2266381-A (GB)
Title: Parallel test circuit for semiconductor memory device
Inventor: YOU JEI-HWAN
IPC: G11C29/40
Filed: 1992-12-31
Abstract: A parallel test circuit of a semiconductor memory chip comprises means for limiting the number of output pads conveying the output of the test circuit, and it may be used both in a wafer test for all of the output pads and in a package test for a reduced number of the output pads. As shown, and in a wafer test, the outputs of first controlled comparators (0-7) may be transmitted to output pads (0-7) via buffers (0-7) and short-circuiting switches activated as required; but in a package test the outputs of pairs of first controlled comparators are compared in second controlled comparators and the results are conveyed to a reduced number of pads. A control signal generator is described with reference to Figure 4 (not shown).   <IMAGE>
Patent GB-2264751-A (GB)
Title: Jet propulsion engine.
Inventor: BROSSIER PASCAL
IPC: F02K3/02
Filed: 1993-02-17
Abstract: The rotor 6, 7 (106) (Fig. 2) of a fan disposed in an annular cold flow duct 5, (5), of a turbojet propulsion engine of the bypass type is carried by a rotory body which includes the rotor assembly 20 of a multi-stage turbine 12 (112) driven by air supplied to it by an axisymmetrical auxiliary duct 13 (113) which diverts air from a primary duct 2, (2) of the engine just downstream of a compressor 1 (1). The duct 2 (2) supplies air from the compressor 1 (1) to a combustion chamber and thence to a turbine driving the compressor 1 (1). <IMAGE>
Patent GB-2281018-A (GB)
Title: Seed tray
Inventor: HAYLEY CHRISTOPHER PARTINGTON
IPC: A01G9/10
Filed: 1993-05-28
Abstract: A seed tray vacuum formed of plastics sheet material and having at least four wells 10 defined by opposing side walls 11, 12 and one or more first partitions 13 extending therebetween and by opposing end walls 14, 15 and one or more second partitions 16 extending therebetween; the first and second partitions 13, 16 are of inverted trough shaped configuration and are arranged substantially perpendicular to each other so as to intersect each other. To improve strength and rigidity the top surfaces of the respective partitions have upraised elongate land 20 provided at each location where the first and second partitions intersect each other, each said land extending longitudinally in alignment with either the first or the second partition. Several embodiments are illustrated involving trays with nine, six, four wells. <IMAGE>
Patent GB-2270007-A (GB)
Title: Exercise treadmill
Inventor: DUNHAM PAUL T
IPC: A63B22/02
Filed: 1993-10-22
Abstract: An exercise treadmill (10) includes a deck assembly (12') having a rearward end portion pivotally mounted on an underlying frame (14'). A powered endless belt (100) is mounted on the deck assembly (12') to present a moving surface which slides over the top of the deck assembly. The forward end of the deck assembly is supported by a suspension system (20') utilizing lever arms (160L' and 160R') mounted on the frame (14') to pivot about an axis (169'). The lever arms are pivotally interconnected with the deck at a location distal from the pivot axis of the lever arms. Dampeners in the form of shock absorbers (178) are connected between the lever arms and the frame to impart a progressively increasing damping force on the lever arms as the lever arms rotate about their pivot axis under the influence of the descending deck. A longitudinal slide (270) is disposed within the deck assembly (12') and a spring loaded detent ball (280) mounted within the slide (270) engages with detents (278a, 278b, 278c) formed within the deck assembly (12'), in order to provide a suspension system (20') in which the response to the runner's foot varies from "soft" to "hard". <IMAGE>
Patent GB-2283604-A (GB)
Title: Remote security alarm system
Inventor: JAMES MICHAEL ROBIN
IPC: G08B25/10
Filed: 1993-11-04
Abstract: A portable device 5, eg a pager, is used to indicate that a security system has been triggered and is activated by air-borne signals which are transmitted by an activator unit, embedded within the security system. <IMAGE>
Patent GB-2284557-A (GB)
Title: A game or sports coaching aid
Inventor: WILLIAMS JEFFREY BROMLEY
IPC: A63B59/02
Filed: 1993-12-09
Abstract: A game or sports coaching aid comprising a glove (10) a ball and a pad (15). The glove has one face (11) of a brushed nylon material which will cling to patches (14) of the hooked part of touch and close fastener stitched to the surface of the ball thus to enable catching practice. Alternatively, the glove may be attached to the pad having a patch (17) of the hooked part of touch and close fastener to enable the user to practice striking techniques. <IMAGE>
Patent GB-2285468-A (GB)
Title: Closures for loft or hatch
Inventor: EISINGER PAUL
IPC: E06B5/01
Filed: 1993-12-22
Abstract: A closure 20 for a loft opening or a hatch includes a frame 22 for securement within the opening and a door 4 hinged to the frame 22 along one margin thereof and capable of opening in at least one direction. An espagnolette latching mechanism 28 is provided for locking the door positively to the frame 22 and airtight seals are fitted. <IMAGE>
Patent GB-940999-A (GB)
Abstract: 940,999. Geophysical prospecting. COMPAGNIE GENERALE DE GEOPHYSIQUE. May 17, 1961 [May 17, 1960], No. 17975/61. Drawings to Specification. Heading H4D. In order to reduce unwanted signals in making a seismographic record the seismic signal u(t), where t is time, is processed to form a signal Y(t)=[u<SP>1</SP>(t)]<SP>2</SP> -u(t).u<SP>11</SP>(t), where 1 and <SP>11</SP> indicate successive time derivatives. A combination of known circuits is utilized, the Figure (not shown) Y(t) may be differentiated before recording is effected.
Patent GB-2278189-A (GB)
Title: Plate type heat exchanger
Inventor: MEEKINS KRIS J
IPC: F28D9/00
Filed: 1992-10-29
Abstract: A heat exchanger of the type having a stack of heat exchange units (14) each formed from first and second thin plates (30, 32) having grooves and ribs, wherein the grooves and ribs on facing surfaces of the first and second plates of a unit cross one another and co-operate to define a first flow path, and grooves and ribs on facing surfaces of first and second plates (30, 32) of adjacent units cross one another and co-operate to define a second flow path, wherein the ribs and grooves have transverse projections formed therein to provide the second flow path with a cross-sectional area exceeding the cross-sectional area of the first flow path. <IMAGE>
Patent GB-2282547-A (GB)
Title: Improved bag support
Inventor: BATE BERNARD ANDREW
IPC: B01D29/27
Filed: 1994-10-04
Abstract: A support (10) for connection of a bag (27) thereto, particularly a filter housing for connection of a filter bag, has an outer peripheral flange arrangement formed of spaced, parallel flanges (13, 14) defining a guide channel therebetween. Linearly slidable towards and away from each other by means of the guide channel are a pair of C-shaped arms. In use the bag (27) has its open end stretched over the guide channel with the arms initially disengaged therefrom, the arms then being slid together along the respective opposite ends of the guide channel so as to trap the bag in the channel and secure it to the support. The arms enable the completed assembly to be located into a structure and have hand holds or other location means for manual or mechanical handling. <IMAGE>
Patent GB-2295343-A (GB)
Title: Socket
Inventor: SUTTON MARK JONATHAN
IPC: B25B13/50
Filed: 1994-11-22
Abstract: A tool socket 10 for engagement with a handwheel having any number of external lobes, is provided with one or more protrusions 14 on an inner surface 12 for engagement with one or more of the lobes. The socket may be power driven and used on handwheels having any number of lobes thereby avoiding regular changing of sockets and helping reduce repetitive strain injury. <IMAGE>
Patent GB-2298213-A (GB)
Title: Lintel
Inventor: O'SULLIVAN OWEN
IPC: E04C3/02
Filed: 1995-02-22
Abstract: A lintel comprises two generally L-shaped pressed sheet metal members 10 and 11 disposed back to back and each comprising a generally horizontal flange 12a, 12b and an upstanding web 13a, 13b. The webs are spaced apart except at the top where at least one of the webs extends towards and is fixed to the other by rivets 16; insulating material may be interposed to provide a thermal break wooden spacer blocks 17 may be present, with insulating material between them.
Patent GB-2302058-A (GB)
Title: Hand-held circular saw.
Inventor: BONE DANIEL
IPC: B27B9/02
Filed: 1995-06-12
Abstract: The saw includes a base plate (24) comprising first and second plates (26, 28). The plates (26, 28) pivot about mutually orthogonal axes to adjust the depth of cut and bevel angle of the saw respectively. Adjustment of the angles of the plates (26, 28) is affected by means of rotatable actuators (34, 36). Each actuator (34, 36) comprises a rack and pinion mechanism and a lockable clamp (44, 42). Each actuator (34, 36) is operable by only one hand of the user. The saw includes a motor (6) whose axis of rotation is in line with the plane of rotation of the saw blade (10). A handle (18) extends between a region adjacent the saw blade (10) and the motor (2).
Patent GB-2288998-A (GB)
Title: Mechanical movement system
Inventor: BAILEY RALPH-PETER STEVEN
IPC: F16M11/14
Filed: 1992-04-06
Abstract: The mechanical movement system comprises a platform 7 having three pairs of supportive legs 8 coupled at triangularly spaced-apart locations by three universal joints 9 each of which couples to one end of each of the two legs of a respective pair. The universal joints each have a bifurcated ball having two halves 23, 24 which provide mountings for the leg and are constrained for rotation about a common axis. The system also has a member having a complementary recess of spherical form within which the bifurcated ball is received so as to be rotatable about any axis. <IMAGE>
Patent GB-2304740-A (GB)
Title: Perfuming laundry
Inventor: CRAWFORD ANTHONY OWEN
IPC: D06M13/00
Filed: 1995-09-02
Abstract: A method of treating laundry comprises the steps of applying a fragrance to the laundry via an iron. The addition of a few drops of after-shave or perfume to the water in the reservoir of a steam iron endow laundry with a delicate pleasant fragrance. Furthermore, no adverse effect on the steam iron noted.
Patent GB-2294036-A (GB)
Title: Apertured container lid with sliding flap
Inventor: LONGBOTTOM KARL
IPC: A61B19/02
Filed: 1995-10-12
Abstract: A closure device, particularly for a sharps bin, comprises an apertured lid 1 with an integral flap slidably mounted for opening and closing the lid aperture 2. Sliding of a first portion 3a of the flap is permitted by the flexing of a second portion of the flap near the integral connection 4 of the flap with the lid. The second portion preferably consists of intermediate panels 3b, 3c, and 3d connected together by living hinges, the panel 3d also being connected to the lid by a living hinge 4. In the open configuration two of the panels 3b and 3c project out of the plane of sliding, meeting at a small angle. As the sliding proceeds towards closure the angled panels move towards coplanarity. A final overcentring action renders them coplanar and locks the closure device in its closed configuration. The lid may provide lateral guides for guiding the first portion 3a of the flap. <IMAGE>
Patent GB-2294714-A (GB)
Title: Releasable tool joint assembly
Inventor: GODDARD TIMOTHY JAMES
IPC: E21B23/04
Filed: 1995-11-01
Abstract: A releasable tool joint assembly for oil or gas well operation between a wireline and a tool string comprises a female portion (A) adapted to be connected to the wireline or upper tools in the stool string and a male portion (B) adapted to be attached to the lower tools and adapted to be releasably connected to the female portion. Sustained tension above a predetermined value serves to controllably release the male and female portions thus separating the upper and lower portions of the tool string. A means of energy absorption is provided such that shock loads do not cause release. The releasable connection includes a fluid reservoir (30) with a bleed chamber (31) connected by a passageway to allow fluid displacement to disengage a collet release mechanism. Check valves (13, 15, 16) are provided in the passageway to ensure no fluid flow until the sustained tension is greater than a predetermined threshold value. Alternatively the tool joint can include a plastically compressible component, eg a slotted cylinder of low strength steel, which yields to disengage the collet.   <IMAGE>
Patent GB-2303202-A (GB)
Title: Cowl
Inventor: HODGSON ROBERT
IPC: F23L17/08
Filed: 1995-11-16
Abstract: A cowl (30) has a first generally disc-shaped member (31) which extends across the opening of a chimney or flue in use and a second disc-shaped member (33) open at its centre and dished to form a shallow cone. The two discs are connected such that the vertical separation between the first and second discs is least at the central opening of the second disc and increases radially outwards. The space between the first and second members provides a venturi effect, airflow caused by wind from any quarter resulting in relatively reduced air pressure in the space above the centre opening in the second member encouraging smoke or flue gases to pass up the chimney or flue to be entrained in air passing across the centre opening between the two members. Provision is made for firmly mounting the cowl to the distal end of the chimney. Because the vertical spacing between the first disc and the distal end of the chimney or flue is substantially less than the diameter of the first disc, the cowl has a generally squat appearance.
Patent GB-2301860-A (GB)
Title: Hydraulic shackle
Inventor: NORHEIM JAN BJARNE
IPC: B66C1/66
Filed: 1996-06-05
Abstract: A hydraulic shackle (1) comprising a shackle body (2) having an attachment (3) for lifting equipment, a lock bolt (4) for inward or outward movement through holes (5) made in the shackle body (2) and a power cylinder (6) which operates the lock bolt (4) via a mechanism (7). The mechanism comprises a link arm (8) which at one end (9) thereof is pivotably secured to the lock bolt (4), and the mechanism (7) is geometrically designed such that the opposite end (10) of the link arm (8) describes a curve as the lock bolt (4) moves in or out, said mechanism (7) exerting on the lock bolt (4) a transverse force at the end (10) of the lock bolt, in addition to an axial force, which transverse force is designed to work in the opposite direction of the force which, due to the load, acts on the lock bolt (4) within the shackle body (2), in order to counteract downward deflection of the lock bolt (4) caused by a suspended load.