baber/WOPTO huggingface dataset:
Patent GB-2203796-A (GB)
Title: Rotary valve
Inventor: PARSONS BRYAN NIGEL VICTOR
IPC: F01L7/08
Filed: 1988-03-18
Abstract: A rotary valve has a valve rotor (10) with an angular discontinuity (17), the valve rotor (10) being mounted for rotation relative to a port (15), so that as it rotates the rotor (10) will open and close the port (15); a drive train (20,21) is provided to rotate the rotor (10), said train (20,21) being arranged to reduce the speed of the rotor (10) so that it is stationary or near stationary when the port (15) is closed; the port (15) is surrounded by a seating area and the valve rotor (10) is arranged to move into engagement with the seating area and close the port (15) as the speed of the rotor (10) is reduced and move away from the seating area as the speed of the rotor (10) increases.
Patent GB-2218119-A (GB)
Title: Sewing machine hem edge guide
Inventor: O'KEEFE MICHAEL
IPC: D05B35/10
Filed: 1988-05-06
Abstract: A sewing machine hem edge guide (10) is adapted to be mounted at a sewing machine work station comprising a work table (11) and a sewing machine (12). The guide (10) co-operates with a stitching head (13) of the sewing machine (12), by guiding the edge of a piece of fabric in a folded-over manner to the stitching head (13) so that operation of the latter can form a stitch line or lines which form a hem along the edge, and the guide comprises: an inclined guide plate (14) which is positionable in line with the stitching head (13) so as to define a predetermined edge feeding line for a piece of fabric, an edge guide (17) positionable downstream of the guide plate (14) so as to guide the folded-over edge of the piece of fabric to the stitching head (13) and a guide nose (18) positionable so as to co-operate with the edge guide (17) in order to engage the folded-over fabric edge to guide the latter in a substantially flattened state to the stitching head (13). The guide nose also acts to uncurl an inwardly curled edge of the workpiece. A profiled guide plate 20 uncurls an outwardly curled workpiece edge. There is an underply trimmer 24 to trim the underply prior to advancement of the workpiece to the stitching head 13 and an edge guide 25. <IMAGE>
Patent GB-2224579-A (GB)
Title: Fuse tester
Inventor: THOMAS JEFF
IPC: G01R31/02
Filed: 1988-06-24
Abstract: A fuse tester comprises a metal contact point C which is connected in series to a light emitting diode B which is connected through a current limiting resistance R to the electric mains supply L. Placing a finger on the contact point will light the diode. Holding one end of a good fuse against the contact point will also light the diode. The hand holding the other metal end of the fuse completes the circuit. The fuse tester may be provided as an addition to other electrical apparatus such as light switches, plug sockets or plugs. <IMAGE>
Patent GB-2225503-A (GB)
Title: Monostable pulse generator
Inventor: LONSDALE CHARLES ANDREW
IPC: H03K3/011
Filed: 1988-11-08
Abstract: A monostable pulse generator provides output pulses whose widths have low dependency on transistor threshold variation. A MOS transistor N2 is switched into and out of conduction by a pair of RC combinations R1C1, R2C2 of substantially identical time constants. When the circuit is enabled by removing the signal EN, the RC combinations charge up identically. When the circuit is passive, node 1 is arranged to be at a slightly higher voltage than node 2. Thus when the circuit is enabled node 1 reaches the threshold voltage of N2 first, switching it on to initiate the output pulse. When node 2 reaches the (substantially same) threshold voltage for MOS transistor N4, N2 is switched off to terminate the output pulse. <IMAGE>
Patent GB-2229815-A (GB)
Title: Navigational compass rose plotting system
Inventor: COWAN THOMAS ALEXANDER
IPC: G01C21/20
Filed: 1988-11-14
Abstract: A navigation system uses a clear plastic plotter and bearing and distance data derived and displayed electronically in a visual form. The electronic navigation position finder is pro-programmed with the exact position of the contra of one or more compass roses on a chart or map. When the present position of the boat aircraft or vehicle is required, the afore mentioned finder is interrogated for a relative bearing and distance from the selected compass rose. By aligning the plotter on the rose in question and using the readout from the position finder, a compass bearing can be transferred by looking through the clear plastic plotter, turning the arm onto this bearing, observing the distance indicated from the display, and placing a pencil at this distance on the arm. An accurate position is thereby obtained. <IMAGE>
Patent GB-2214221-A (GB)
Title: Ladder hoist
Inventor: WATERHOUSE COLIN
IPC: E06C7/12
Filed: 1989-01-20
Abstract: A hoist for use with a ladder provides a cross-member (2 or 22) adapted to rest against the stiles (L) parallel with its rungs (R). Two hooked brackets (4, 6 or 24, 26) project from the member (2) so that one (4 or 24) hooks over a rung and the other (6 or 26) hooks under the same rung. An adjustable strut (14 or 44) projects from a position laterally spaced along the member from the bracket (6 or 26) which hooks over the rung remote from the bracket (4) which hooks under the rung to engage the wall W. The strut 44 slides on an upper member (42) hooked onto a further ring (R'') and strut 44 has curved end 48 for engaging the wall. Hoist tackle is mountable (10, 30) between the bracket (4, 24) and the point of contact of the strut upon the wall. <IMAGE>
Patent GB-2233380-A (GB)
Title: Glazing strip
Inventor: MCARDLE FRANCIS
IPC: E06B7/14
Filed: 1989-06-27
Abstract: A glazing strip comprises an elongate member having a front channel 16 which opens upwardly to receive and support the lower edge of a glazing pane 17, and a rear channel 18 immediately behind the front channel 16 to receive condensation running down the inside surface 19 of the pane. A drainage chamber 20 is located below the front channel 16 and extends rearwardly at least partially below the rear channel 18. The strip further including a first series of apertures 26 in and along the rear channel 18 to permit condensation received in the rear channel to drain into the chamber 20, a shield 28 extending downwardly from the front edge of the base 21 of the chamber, and a second series of apertures 27 in and along the base of the chamber immediately behind the shield to permit condensation to drain to the external environment. <IMAGE>
Patent GB-2220925-A (GB)
Title: Card folding
Inventor: LONG JOHN ALBERT
IPC: B65H45/26
Filed: 1989-07-11
Abstract: A device for simultaneously feeding and folding die cut cards comprises a feed roller 10 having a medial major diameter and tapers toward both of its ends, and overlying a supporting roller 11 which has a complimentary shape the rollers sandwiching two resilient conveyor belts 21, 22 so that the conveyor belts form a V-shape between the rollers. Cards from stock 50 presented to the conveyor belts are drawn between the rollers are bent into a V-shape 51, assisted by V-shaped plate 35. Folding is completed by pinch rollers 31, 32. <IMAGE>
Patent GB-2221729-A (GB)
Title: Spindle unit
Inventor: NAKANISHI TSUTOMU
IPC: G11B15/60
Filed: 1989-08-15
Abstract: A spindle unit comprises a rotatable shaft (1) in which annular grooves (1a) of semicircular cross section are formed to receive balls (2) of upper and lower ball bearings. The outer races (3) of the ball bearings are defined by cylindrical sleeves with tapered surfaces which engage against the balls. The balls are spaced by annular retainers (2A) of metal or synthetic resin. Each retainer may have an axial split to facilitate assembly. <IMAGE>
Patent GB-2227117-A (GB)
Title: ATF controller for digital audio tape recorder and/or player
Inventor: NOH II-YOUNG
IPC: G11B5/55
Filed: 1989-12-13
Abstract: Disclosed is a system capable of producing an offset signal according to the level difference between two channels after digital conversion of a pilot signal in an automatic track finding (ATF) controller of a DAT system. The automatic track finding controller comprises: a low-pass filter (4) for detecting only the pilot signal by filtering a reproduced signal from a digital tape; a band-pass filter (8) for detecting synchronous signals of tracks A and B from said reproduced signal; an analog/digital converter (7) for converting output of said low-pass filter (4) into digital data; a controller (10) detecting a level difference between the heads A and B as well as generating first to third control signals to control the digital pilot signal, after acknowledging a corresponding track by said synchronous signals; a first register (11) for storing a pilot crosstalk component of an adjacent track by the first control signal; a second register (12) for storing a pilot crosstalk component of another adjacent track by the second control signal; a third register (13) for storing an offset value according to a level difference between the heads A and B generated at the controller (10) by said third control signal; adding means (14) for compensating the offset value due to the level difference of pilot signal by operating outputs of said first to third registers (11 - 13); and a tracking error-signal generator (15) for controlling tracking by generating a PWM signal according to the output of said adding means (14). <IMAGE>
Patent GB-2241182-A (GB)
Title: Drill chuck with countersinking jaws
Inventor: ROE JEFFREY GORDON
IPC: B23B51/10
Filed: 1990-01-26
Abstract: The chuck has machined on the outer faces of the jaws countersinking formations to provide countersinking in a single operation with drilling. The drilling depth is determined purely by the projection of the drill from the jaws providing easy setting. <IMAGE>
Patent GB-2229118-A (GB)
Title: Magnetic oil filter accessory
Inventor: HALL HAROLD
IPC: F01M11/03
Filed: 1990-02-19
Abstract: An accessory to be located between an internal combustion engine and an oil filter therefor, comprises a housing 20 having an inlet, an outlet and magnetic (27, 32 Figs 2 & 3) means arranged so that oil flowing from the sump 1 to the oil filter 5 flows past the magnetic means to collect any metal particles suspended within the oil. The accessory is screwed onto the oil-return pipe 3 prior to the filter 5. <IMAGE>
Patent GB-2230653-A (GB)
Title: Trunking for use in a raised floor
Inventor: YATES-SMITH MARK JOHN
IPC: H02G3/04
Filed: 1990-03-14
Abstract: A cross-over for lengths of converging trunking 6a-6b which has at least three separate areas 34 - 36 for receiving cables, has a removable section 100 placable after a cable has been laid in the first area, the section communicating with all the lengths and being able to support and guide cables in the second and third areas. A removable bridging unit 158' is located in hole 106 in section 100. This allows cables to be supported and guided between different areas. An alternative bridging unit 258' is also shown. Trunking (Fig 1) for use in a raised floor comprises a channel section (7) having, a base (9), walls (10, 11), outwardly extending flanges (12, 13) on the walls for supporting a cover (8) and means below the flanges resting on pedestals (4, 5) to support the trunking e.g. welded box sections. Threaded rods (28, 29) may be used to support the trunking. <IMAGE>
Patent GB-2242263-A (GB)
Title: Flue gas outlets for cooking ovens
Inventor: SMITH LESLIE
IPC: F24C15/00
Filed: 1990-03-20
Abstract: A cooking oven 1 is provided which is adapted to be slid-under a worktop 3 supported by one or more adjacent kitchen cabinets, a flue gas outlet 10 being provided by a slot across the rear part of the top surface 6 of the oven 1. An L-shaped cross section flue 7 which is adjustable forwards and backwards over the outlet 10 to enable the oven 1 to be accommodated at different relative depths under the worktop with the open top part 11 of the flue 7 aligned with a venting grille 12 in the worktop. <IMAGE>
Patent GB-2244830-A (GB)
Title: Protocol for network having a plurality of intelligent cells
Inventor: SANDER WENDELL B
IPC: G08C15/00
Filed: 1990-04-04
Abstract: A network for providing sensing, communications and control has a plurality of intelligent programmable cells (27, 28). Each cell has an integrated circuit with a processor (100). A network is distinguished from another network by system identification numbers (IDs). Groups of cells within each network are formed to perform particular functions and are identified by group IDs. Communications occur within the network through use of the system, group and cell IDs. Some cells are assigned the task of sensing, for example, the condition of a switch, and other cells the task of controlling, such as controlling a light. The preferred embodiment of the cell includes a multiprocessor and multiple I/O subsections where any of the processor can communicate with any of the I/O subsections. This permits the continual execution of a program without potential interruptions caused by interfacing with the I/O section. The I/O section includes programmable A-to-D and programmable D-to-A converter.
Patent GB-2236012-A (GB)
Title: Integral edge seals for phosphoric acid fuel cells
Inventor: GRANATA SAMUEL JOSEPH
IPC: H01M8/02
Filed: 1990-07-30
Abstract: A phosphoric acid fuel cell (1) having integral edge seals (31) formed by an elastomer permeating an outer peripheral band contiguous with the outer peripheral edges of the cathode and anode assemblies (3, 7) and the matrix (5) to form an integral edge seal (31) which is reliable, easy to manufacture and has creep characteristics similar to the anode, cathode and matrix assemblies (3, 5, 7) inboard of the seals to assure good electrical contact throughout the life of the fuel cell (1). <IMAGE>
Patent GB-2236823-A (GB)
Title: Coating of screws with sealant
Inventor: DAY ROBERT HENRY
IPC: F16B33/00
Filed: 1990-08-07
Abstract: A method of making a screw threaded fastener 1 for fixing cladding to a building includes the steps of applying a mastic covering 5 to a screw threaded portion 4 of the fastener, and applying a non-sticky protective coating 6 to the outside of the mastic 5 to prevent the fasteners 1 sticking together during handling and packaging. Preferably the protective coating 6 is a coating of a waxy substance and is applied to the outside of the mastic 5 by dipping or spraying. The fasteners are then easy to use and form a water-tight moisture vapour-proof seal with their fixings. In Fig 2 (not shown) a drill tipped fastener (10) has a first wax coat (14) over the drill pant, a mastic coat (15) which adheres to the lower screw threaded part, and a second wax coat (16); the wax melts in use to provide a lubricant. in Fig 3 (not shown) the fastener (10) has been dipped in a hot oil bath to remove the wax coats (14, 16) from the drill part (12). <IMAGE>
Patent GB-2247204-A (GB)
Title: Flaw of dielectric fluid in electrical discharge machining
Inventor: BRIDGES STUART APSLEY
IPC: B23H1/10
Filed: 1990-08-23
Abstract: An apparatus for electrical discharge machining has a tubular electrode 12 within an enclosing sleeve 15, 16 and spaced from the sleeve by an annular gap. Pressurised di-electric fluid is passed through the gap and is discharged through the tubular bore in the electrode so as to ensure that clean di-electric fluid encloses the electrode and reduces the tendency to arc and the tendency for a central pillar to develop. <IMAGE>
Patent GB-2242243-A (GB)
Title: Automotive vehicle brake system with anti-locking device
Inventor: WAGNER WILFRIED
IPC: B60T13/52
Filed: 1990-12-07
Abstract: In an automotive vehicle brake system with anti-locking device the movable wall (6) of a vacuum brake power booster (1) is movable independently of its input member (4) and the respective pistons (9, 10) of a master brake cylinder (2) are in power-transmitting connection with said input member (4) and with the movable wall (6), and the pressure chamber (7) oil the piston (9) can be shut off (by a valve 44) in the event of an anti-locking control action. The two pressure circuits (11, 13) of the master cylinder are balanced by a device (15). An optional device (19) allows a limited advance of the piston (9) on closure of the valve (44). <IMAGE>
Patent GB-2242865-A (GB)
Title: Skew prevention structure for electrophotographic printer
Inventor: MONMA YOSHIO
IPC: B65H7/00
Filed: 1991-04-15
Abstract: An electrophotographic printer is disclosed in which, a latent image is formed on the circumferential surface of a photoconductive drum (1) by exposing the circumferential surface thereof to light carrying image data. A toner image is formed by applying toner to the latent image, then a recording medium (9) is charged by a transfer charger (71) so that the toner image is transferred from the photoconductive drum (1) to the recording medium (9). In the printer, a guide member (73) is arranged at the upstream side of the feed path with respect to the transfer charger (71) for shifting the recording medium (9) towards the photoconductive drum (1) by a predetermined amount, and a conductive brush member (74), which is grounded, is arranged at the downstream side of the feed path with respect to the transfer charger (71) for shifting the recording medium (9) towards the photoconductive drum (1) by another predetermined amount. <IMAGE>
Patent GB-2250751-A (GB)
Title: Process for the production of dielectric thin films; pyroelectric sensor
Inventor: TABATA HITOSHI
IPC: G01J5/34
Filed: 1991-08-23
Abstract: A process for producing a dielectric thin film of a compound oxide of a high-melting metal and a low-melting metal by vapor-depositing the compound oxide onto a substrate, characterised in that said substrate or the vapour phase is irradiated with a laser beam during vapour deposition. The vapour deposition of the compound oxide onto the substrate may be carried out by irradiating the compound oxide as a target with a laser beam. The laser beam irradiating the substrate or vapour phase, 11, has a higher energy than the laser irradiating the target 6 (Fig 1). Specific examples of compound oxides are Pb(Zr, Ti)O3; (Pb, La) (Zr, Ti)O3; (Pb, La)TiO3; BaTaO3; LiTaO3; and LiNbO3, and may be deposited by sputtering, CVD, molecular beam epitaxy and electron beam methods. In one method evaporation is carried out in an oxygenous atmosphere with a partial pressure of oxygen of 0.06 Torr or more. There is also provided a pyroelectric type of sensor (Fig 11) comprising: a MOS element including a drain electrode (5), a source electrode (6), a gate electrode (7) and an Si semiconductor and a film of a ferroelectric or pyroelectric material formed on the drain electrode, the drain electrode being made of a material which exhibits a good ohmic contact with Si or SiO2 and has a latice constant close to that of ferroelectric or pyroelectric material. The film of ferroelectric or pyroelectric material may be obtained by irradiating a target comprising a compound oxide of a high-melting metal and a low-melting metal with a laser beam to vapour-deposit the compound oxide onto said drain electrode. The drain electrode may be made of two materials, the part connected to the Si semiconductor made of a material that exhibits a good ohmic contact with Si or SiO2 eg Al, and the other part on which the film of ferroelectric or pyroelectric material is to be formed made of a material that has a lattice constant close to that of the ferroelectric or pyroelectric material, eg Pt. The MOS element may be used in a liquid crystal display. <IMAGE>
Patent GB-2259518-A (GB)
Title: Cleaning composition for use in seawater
Inventor: MUIJS HERMAN MATHIEU
IPC: C11D1/83
Filed: 1991-09-05
Abstract: The invention relates to a composition. suitable for use as micro-emulsion cleaner in seawater, comprising:     a) a C12 to C18 alpha-olefin sulphonate, b) a C9 to C18 alcohol, ethoxylated with from 1 to 9 oxyethylene units per mol of alcohol,   c) an aromatic hydrocarbon, and   d) water,  the weight ratio of b/a being in the range of from 1.5:1 to 8:1. <IMAGE>
Patent GB-2259690-A (GB)
Title: Vehicle screw jack
Inventor: JEMMESON HOWARD MALCOLM
IPC: B66F3/12
Filed: 1991-09-21
Abstract: A screw jack has a ground engaging component, a vehicle engaging component, an externally threaded screw member (25) and a correspondingly threaded nut formation, the screw member (25) being mounted for rotation and the nut formation being non-rotatably mounted, so that upon rotation of the screw member (25) the nut formation will move axially relative to the screw member (25) to cause relative movement between the ground engaging component and a vehicle engaging component a resistance inducing device e.g. (40-48) being associated with the screw member (25) to apply a predetermined resistance to rotation thereof at least in one direction. The device can be a non circular section (42) on the screw and/or a spring (e.g 40). The spring can be a block of resilient material. The device can be uni-directional e.g. pawls (48) and ratchet (46). The uni-directional device can be part of a bearing (Fig 5, not shown). <IMAGE>
Patent GB-2261407-A (GB)
Title: Life guard rescue system
Inventor: CARTER FRANK CHRISTOPHER MARK
IPC: B63C9/08
Filed: 1991-10-28
Abstract: A lifeguard rescue system comprises of a torpedo-shaped buoy of closed cell foam, a personal throw bag, and a towing strap 3 with a karabina and quick release fastening means. The system is fully integrated, the towing strap can be fitted to either the torpedo buoy or to the throw bag to increase the reaching distance. Each of the three main items can be used as a rescue aid in its own right;- A buoyant aid, a non buoyant aid, a throw line. The system is designed to secure to any fixed object, eg. A lifeguards high chair or the sponsons of a rescue boat. In all cases a very quick release is used. The patrolling lifeguard can shoulder the system or wear it as a belt, leaving the hands free. Once again, it releases very quickly in the event of a rescue. The colour scheme is rod and yellow in keeping with the new directives for lifeguards. <IMAGE>
Patent GB-2262970-A (GB)
Title: Flexible rock bolt
Inventor: ASHMORE PETER STUART
IPC: E21D21/00
Filed: 1991-12-19
Abstract: A load-bearing termination (1) engages an end portion of a rope (3) consisting of strands extending helically around a central void. The termination (1) has an external thread (16) for tensioning purposes and an internal bore (11) which accommodates with the central void to enable injection of grouting fluid.
Patent GB-2255952-A (GB)
Title: Wrapping machine.
Inventor: GAMBETTI MARIO
IPC: B65B11/10
Filed: 1992-03-17
Abstract: A wrapping machine comprises three coplanar feed (1), wrapping (2) and product delivery (3) conveyors respectively, means (11, 12) for delivering sheets of wrapping material, and a wrapping bar (15) carried along a track (13) around the wrapping conveyor (2) for wrapping the said products. The means for delivering said sheets comprises at least two aligned conveyor members (11, 12) of which the downstream member (12) is equipped with a device (31) to cyclically vary its speed between the speed of the upstream conveyor (11) and the (slower) speed of the wrapping conveyor (2). <IMAGE>
Patent GB-2265505-A (GB)
Title: Push-pull induction heating drive circuit
Inventor: CHEN SU-MIN
IPC: H05B6/06
Filed: 1992-03-19
Abstract: A switching logic circuit 20 provides two exclusive pulse signals serving to drive via an amplifying circuit 30 a dual push-pull switching output circuit 40 having two power elements Q41 and Q42 connected to an induction coil L1 and to a power source. A synchronous detection comparing circuit 50 has a comparator QP1 with inputs connected to the induction coil L1 and to the power source and an output connected both to the switching logic circuit 20 and to a differentiation circuit 50. The power output is controlled by pulse width modulator 70 having a comparator OP2 which compares the output from differentiator 60 with the output from a power setting circuit 80 and provides a further input to the logic circuit 20. <IMAGE>