baber/WOPTO huggingface dataset:
Patent GB-2218123-A (GB)
Title: A roll arrangement
Inventor: BRENDEL DR BERNHARD
IPC: D21G1/00
Filed: 1989-05-03
Abstract: In order to reduce vibrations in a roll arrangement comprising two consecutive pairs of rolls for processing a web of material, the natural frequency of one roll pair is selected to be different from the natural frequency of the other roll pair. This prevents random vibrations occuring in the first roll pair from causing resonant excitation of the second roll pair. The roll arrangement may comprise a double smoothing unit for processing paper webs. In a modification, the roll arrangement may comprise two consecutive pairs of rolls, each pair being disposed on a separate stand, so as to prevent transmission of vibrations therebetween.
Patent GB-2236302-A (GB)
Title: Retractable clothes line
Inventor: LIN JU-NIN
IPC: D06F53/04
Filed: 1989-09-27
Abstract: A clothes line, or tape, 44, Fig. 5, is pulled from a reel, within casing wall 40, against the bias of a spiral spring. The line passes through rotatable, slotted shaft 23, and zig-zag path 350. The extended line, anchored at end 48, is tensioned by rotating shaft 23, using a circular knob on the casing, to wind-up the line, Fig. 7. Unwinding is prevented by a shaft-driven ratchet. Release of the ratchet, by pressing a triangular knob on the casing, allows the spiral spring to wind-up and retract the line. <IMAGE>
Patent GB-2225097-A (GB)
Title: Water heating apparatus
Inventor: GRIFFITHS RICHARD MARTYN
IPC: F24H9/20
Filed: 1989-10-17
Abstract: Hot water is generated using the water-jacketed tube heater type of apparatus in which, on demand, mains cold water passes through a high efficiency heat exchanger 4, 4' immersed in a heated thermal storage medium 2, such as water, contained in a cylinder 1 whereby the cold water becomes heated and is conveyed at high pressure to a point of use such as a sink, bath or shower. Substantially the whole of the thermal storage medium 2 is continually maintained, by means of a controller 13 and one or more electric immersion heaters 10, 10', at least one of which extends into the lower regions of the cylinder 1, at about 90 DEG C in the off-peak (night-time) electricity tariff period and at about 60 DEG C in the peak (day-time) tariff period. The controller 13 receives a signal from a temperature sensor 12 located in a upper region of the cylinder 1. Maintaining the specified temperatures in the medium, particularly that in the peak period, reduces the time taken to obtain hot water through the heat exchanger 4, 4'. <IMAGE>
Patent GB-2227837-A (GB)
Title: Temperature responsive element
Inventor: USUI MASAYOSHI
IPC: G01K5/64
Filed: 1989-12-22
Abstract: A temperature-sensing member including a hollow cylinder (3) having a circular rectangular or polygonal cross section and at least one strip member (2) of a material having a different coefficient of thermal expansion from that of the cylinder, the outer peripheral surface of the cylinder and at an acute angle with respect to an axis of the cylinder wherein portions of the strip on opposite sides of the cylinder intersect each other. When two strip members are provided they may be disposed in mutually different directions and intersect (when viewed from one side of the cylinder). The strip member may be wire, or rod. Materials may be metal, glass fibre and resin. The element may be used in corrosive atmospheres. 
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Patent GB-2234567-A (GB)
Title: Water supply hose connecting device for eg. a washing machine
Inventor: YOON EUI-CHANG
IPC: A47L15/42
Filed: 1990-08-01
Abstract: A water supply hose connecting device for a washing machine which is easy to couple with and release from a water tap and is capable of preventing water leakage comprises an upper connecting member 2 for coupling in water tight manner to a water tap, an intermediate connecting member 9 formed with a female threaded portion 6 so as to be coupled with a male threaded portion 1 formed on said upper connecting member, a lower connecting member 13, formed with openings 12 and a flange 11 so as to be firmly coupled to said intermediate member, and a control member 15 for controlling the coupling and releasing of said intermediate connecting member and lower connecting member. <IMAGE>
Patent GB-2236100-A (GB)
Title: A tamper-evident device for a container
Inventor: GAINSLEY PETER
IPC: B65D55/06
Filed: 1990-09-13
Abstract: A tamper-evident device for a container comprises a main part 11 extending over a container opening and a fixing portion 12 securable to the container body spaced from the opening, the fixing portion being detachable from the main part or the container body to enable the container to be opened. In one embodiment the main part 11 fits into a recess 25 in a container lid 22 and two fixing portions 12 connected to the main part 11 through intermediate portions are securable to the container walls or base, one or both of the fixing portions 12 being detachable from the main part 11 by lines of weakening. If both portions 12 are detachable, then the lid 22 can be completely removed or if one portion 12 is detachable then the other can act as a hinge. in an embodiment for use on a container without a lid (Figs 4-7) the main part of the device forms a lid for the container. <IMAGE>
Patent GB-2240227-A (GB)
Title: Local oscillation circuit for band switching
Inventor: YAMAMOTO MASAKI
IPC: H03B5/12
Filed: 1990-10-17
Abstract: To convert a received signal of different frequency bands (low and high for a VHF television set) to an intermediate frequency, the oscillation frequency of the local oscillation circuit must be changed for each band. The change to a desired frequency is made by shorting a part of a coil in a resonance circuit at high-band reception. However, a feedback capacitor constituting the oscillation circuit is fixed irrespective of the band. In this invention, the capacity between the collector and the emitter of an oscillation transistor (16) is decreased at high-band reception, while the capacity between the emitter and the base is increased. Conversely, at low-band reception, the capacity between the collector and the emitter is increased, while the capacity between the emitter and the base is decreased. Such switching of a capacity is achieved with one capacitor (21). <IMAGE>
Patent GB-2237528-A (GB)
Title: Vibration-damped hydraulic hammer
Inventor: SCHOU JOERGEN
IPC: E21B1/38
Filed: 1990-10-30
Abstract: A hydraulic striking tool (1) is encircled by a silencing jacket (7, 8) which is suspended in the vibration-damped handle (5) of the striking tool. By this a reduced natural vibration of the silencing jacket is achieved and consequently an improved noise-suppression. Parts of the jacket which provide an opening for portions of the tool to protrude and an opening for hoses 6 to supply compressed fluid medium, are encircled by rubber bellows. Grip 5 (of rubber or plastic) is mounted on an axle 9 attached to torque arms 13. Arms 13 are attached to traversing axle 19 enclosed by a vibration-damped material 11. Similarly enclosed by material 11 is another traversing axle 19 attached to a vertical supporting bracket 17. A vibration- damped handle is thus formed (see Figure 2). <IMAGE>
Patent GB-2249870-A (GB)
Title: Electrical switch dolly
Inventor: BOLLINGHAUS PETER
IPC: H01H23/14
Filed: 1990-11-12
Abstract: An electrical switch dolly comprising a plastics body (3) pivotable between an on and off position is provided with a recess (7) in its front face in which is received a decorative insert (8) such as a metal plate or a plate made of a reflective material or of a material visible in the dark. <IMAGE>
Patent GB-2238604-A (GB)
Title: Firearms lock
Inventor: BALL STEPHEN
IPC: F41A17/44
Filed: 1990-11-27
Abstract: A firearms lock comprises a substantially cylindrical body of three annular sections 12, 14, 16. First and third sections 12, 14 are of a rigid construction and first section 12 is provided with a locking device 18 attached to a connecting bar 20. The connecting bar 20 has a threaded part which engages with a nut 22 fixedly attached to the end of the third section 14. The second section 16 is of a flexible and relatively incompressible material such as rubber. The lock is placed in the barrel of a firearm and the locking device 18 operated to rotate the bar 20. The rotation of the bar causes axial displacement of the third section 14 which is prevented from rotating itself by frictional engagement with the barrel walls of the firearm. This displacement compresses the second section 16 causing a radial expansion thereof and a corresponding frictional engagement with the barrel walls preventing removal of the lock therefrom. <IMAGE>
Patent GB-2251902-A (GB)
Title: A tandem master cylinder
Inventor: WIMBUSH MAURICE JOHN
IPC: B60T11/22
Filed: 1991-01-18
Abstract: In a tandem brake master cylinder having two pistons (14) (15) a spring (41) acts between the two pistons (14) and (15) and has one end seated on a spring seat (42) associated with a first piston (14) and its other end seated on a spring cap (43) connected to the first piston (14) by a screw threaded pin (44). The pin (44) screws into a tie bar (45) so that the overall length of the assembled first piston (14), spring (41), and spring cap (43) can be adjusted as required. <IMAGE>
Patent GB-2241944-A (GB)
Title: Carbon brush
Inventor: SHIBUYA ISAO
IPC: C04B35/80
Filed: 1991-03-18
Abstract: A carbon brush used for a miniature electric motor is formed by pressure-forming and sintering graphite powder which may be coated with a metallic layer. The graphite powder is purified to reduce the ash content, typically to no more than 0.05 wt.%, and is mixed with 0.1% to 12.0% by weight of a fibrous material having a particle size of no more than 40 microns and lengths of no more than 50 microns. The purification treatment usually comprises exposure of the powder to a halogen-liberating substance in a high temperature inert gas atmosphere.
Patent GB-2254042-A (GB)
Title: Improvements relating to decorative glass
Inventor: CASEY DAVID
IPC: B44C5/04
Filed: 1991-03-26
Abstract: Glass, such as window glass, mirror glass, door glass or furniture glass is decorated by applying an adhesive film which is silk screen printed with a pattern which simulates an etched or embossed pattern.
Patent GB-2256857-A (GB)
Title: Improvements relating to cans for liquids
Inventor: KAHN SAMUEL JOSEPH
IPC: B65D45/18
Filed: 1991-06-22
Abstract: A device for resealing an opened ring-pull can 100 comprises means 12 for sealingly engaging an opened dispensing orifice, gripping means 32 to retain the device in sealing engagement with the can, and attachment means 22 to allow the device to be releasably attached to a support. <IMAGE>
Patent GB-2247348-A (GB)
Title: Peltier devices
Inventor: PANAYI STYLIANOS
IPC: H01L35/34
Filed: 1991-07-17
Abstract: In a peltier device comprising a metallic heat absorption sink (15), a metallic heat dissipation sink (16) and a semiconductor material (17) disposed between the two sinks and electrically insulated therefrom, electrical connections to the semiconductor material (17) are via nickel pads (18) superimposed on copper pads (19) and these are insulated from their respective heat sinks by a microns-thin layer of a ceramic material such as alumina. The component parts are bonded together to form a consolidated structure. <IMAGE>
Patent GB-2259632-A (GB)
Title: An encoder/decoder for Manchester code
Inventor: AL-SAMMAK ABDUL-IMAM JASSIM
IPC: H04L25/49
Filed: 1991-09-13
Abstract: An encoder/decoder for Manchester code includes an encoder comprising an exclusive - OR gate, Figure 2 (not shown) in combination with a clock whose frequency is equal to the data rate of the data to be encoded and a decoder comprising three shot circuits (T1, T2, T3) in combination with an OR gate and a D-type flip flop (D). Two of the one shot circuits are used as transition detectors, one for positive transitions and the other for negative transitions, and the OR gate and the third one shot circuit is employed to extract the clock information embedded in the transitions. The decoder may include a further one shot circuit (T4), Figure 8 (not shown), connected in parallel with the OR gate and the third one shot circuit (T3). The centre frequency of operation may be altered by changing a resistor and/or capacitor associated with the third one shot circuit.   <IMAGE>
Patent GB-2260067-A (GB)
Title: Block code aligner
Inventor: PACKER SIMON GUY
IPC: H03M13/33
Filed: 1991-09-30
Abstract: A block code aligner, for determining the alignment of data blocks within an input data stream, comprises a block detector 11 for detection of a block comprising a valid block within the input data stream, confidence counters 13, 14, 15, 16 for counting the number of valid blocks occurring at each position within the data block, and a priority latch 17 for Iatching in response to the first counter at which a predetermined number of valid blocks is counted. Updating of latch 17 to another position will only occur if the previous condition becomes invalid and another position becomes valid; otherwise the initial position remains latched as the valid alignment condition. <IMAGE>
Patent GB-2260938-A (GB)
Title: Machine for applying a film to a curved substrate
Inventor: BULL DENNIS GEORGE
IPC: B32B17/10
Filed: 1991-11-02
Abstract: A machine applies a polypropylene film 27 to a spherically curved glass substrate 10, particularly a spherically convex vehicle mirror. The machine has four pairs of rollers through which the backing film or tape and the mirrors are fed successively. Rollers 15A and B apply the film to the mirror, the film having an adhesive coating. Rollers 16A and B are rollers. Rollers 17A, B and 18A, B hold the film taut while it is severed by a guillotine or cutter 20. The rollers are all controlled as to height and tension and the spacing between the sets of rollers is adjustable for different sizes of mirrors. <IMAGE>
Patent GB-2261884-A (GB)
Title: Method and apparatus for forming sliver
Inventor: EKE JAMES WILLIAM
IPC: D01H5/38
Filed: 1991-11-26
Abstract: A sliver is created by directly condensing (6) the carded web from carding apparatus (1-4) and then feeding it to a drafting set (7) from which it is subsequently delivered by way of an autoleveller comprising sliver thickness sensing means (8) and variable draft means (11). <IMAGE>
Patent GB-2263061-A (GB)
Title: A walking aid
Inventor: BROWN ROGER CHRISTOPHER
IPC: A61H3/02
Filed: 1992-01-08
Abstract: A walking aid in the form of a walking stick comprises an elongate main body, one end of which carries a handle and the other end of which is formed as an enlarged ground engaging end. The enlarged ground engaging end engages the ground at positions outside the plan area of the main body so that the stick will stand upright when the ground engaging end is placed on the ground.
Patent GB-2263507-A (GB)
Title: Fingertip sprayer mounted on an angle neck container
Inventor: KNICKERBOCKER MICHAEL G
IPC: B05B11/00
Filed: 1992-01-17
Abstract: A manually operated pump dispenser assembly includes a container (10) having an angled neck (17) at its top opening (16) and a pump dispenser (21) mounted on the neck (17). The container neck (17) and dispenser (21) have a central axis (18) lying at an acute angle to the central axis (19) of the container (10). The neck axis (18) intersects the container wall (14), and a dip tube (23) suspended from the dispenser (21) lies along such axis and extends into an interior corner (26) of the container (10). Such interior corner (26) forms a well from which the entirety of contents of the container (10) is capable of being dispensed upon actuation of the dispenser (21) while holding the container (10) with the neck axis (18) substantially upright. An external hump (27) is located adjacent the neck (17) forming a shoulder (28) which fits against an operator's hand (see Fig. 8). <IMAGE>
Patent GB-2257588-A (GB)
Title: Analog switch
Inventor: SHIN YONG-HO
IPC: H03K17/62
Filed: 1992-03-11
Abstract: A crosstalk-resistant multi-input to single output analog switch is provided to prevent an unwanted input signal appearing at an output stage 8. The analog switch has the required differential amplifier A1-A5 selected by a first selective switch unit 4. A first reference voltage Vref 1 is supplied via a second selective switch unit 7 to the required differential amplifier and a second reference voltage Vref 2 is connected via the second selective switch unit 7 to the other differential amplifiers so as to avoid crosstalk generation by electrically blocking a signal transfer path between a selected input port and non-selected input ports. A detailed transistor circuit of the differential amplifiers and switch units is described (Fig 4). <IMAGE>
Patent GB-2260833-A (GB)
Title: Reference voltage circuit allowing fast power-up
Inventor: RUNDEL BERND M
IPC: G05F1/10
Filed: 1992-04-30
Abstract: A reference voltage circuit, e.g. for an integrated circuit analog-to-digital converter, includes a band gap circuit 2, and a first field effect transistor 4 coupling the band gap circuit 2 to a bypass capacitor 5. A second field effect transistor 7 couples the capacitor 5 to a non-inverting input 9 of the buffer circuit 8. Transistors 4, 7 are turned on, e.g. during conversations, during which time the first transistor 4 and the capacitor 5 coact to filter high frequency noise produced by the band gap circuit 2, and to apply a precise reference voltage to the non-inverting input 9 of the buffer circuit 8. The transistors 4, 7 are turned off during power down to isolate the capacitor 5 and preserve its charge, so that the capacitor does not need to be charged up when the transistors 4, 7 are turned back on. A second bypass capacitor and third and fourth field effect transistors may be used at the output of the buffer circuit 8 to produce a reference voltage (see Fig. 2). <IMAGE>
Patent GB-2266749-A (GB)
Title: Centrifugal pumps
Inventor: CLIFFORD FRANK GRAHAM
IPC: F04D29/16
Filed: 1992-05-07
Abstract: A centrifugal pump comprises a pump casing 15 and a pump backplate 9 which together define a pump chamber in which an open impeller 14 is mounted for rotation. Means 25, 26, 27, 28 are provided to effect axial adjustment between the pump casing 15 and the pump backplate 9, whereby the axial clearance between the pump casing 15 and the impeller 14 can be accurately set, and sealing means 12, 13, 24 are provided to effect a seal between the pump backplate 9 and the pump casing 15 at all relative positions of adjustment thereof. <IMAGE>
Patent GB-2257736-A (GB)
Title: Locking unit for a lockable access cover
Inventor: ROBINS IVAN LEE
IPC: E05B17/14
Filed: 1992-07-08
Abstract: In order to deter unauthorised opening of an access cover (1), the cover is releasably secured to an associated frame (2) by a latching member (3) which is operated by a removable release member and to which access by the release member to release the latching member (3) can be prevented by an obstructing member (25) lockable in an obstructing position to block the path of the release member to the latching member. The obstructing member (25) is locked by a key-operated look (22), preferably having an element (24) which can be turned by the key when the lock is freed to turn the obstructing member to and from the obstructing position. The latching member, obstructing member and lock may be pre-assembled in a unit to be secured to the cover. A closure weather hatch may close over the lock and an access aperture to the latching member to protect them from weather and ingress of undesirable matter. <IMAGE>
Patent GB-2261527-A (GB)
Title: Progressive multifocal ophthalmic lens
Inventor: PEDRONO CLAUDE
IPC: G02C7/06
Filed: 1992-10-26
Abstract: The lens has an aspherical surface (S) having a zone (VL) for far vision, a zone (VP) for near vision, and between these two zones, a zone (VI) for intermediate vision, with a meridian curve (MM') along which the curvature of the surface varies progressively and which is inclined from top to bottom towards the nose side of the lens, at least in the intermediate zone (VI). A portion (DP) of the meridian curve situated in the intermediate and near zones (VI and VP) is divided into a first segment (DC) at an angle cx to the vertical where the value of  alpha  is an increasing function of the power addition A of the lens, and a second segment (OP) at an angle  omega to the vertical where  omega  is smaller than  alpha . At the point (C) where the two segments meet, the mean sphere value of the surface (S) corresponds to a power addition lying in the-range 0.8 to 0.92 times the nominal power addition A of the lens. <IMAGE>
Patent GB-2274844-A (GB)
Title: Plain bearing material
Inventor: DAVIES GLYNDWR JOHN
IPC: C08L87/00
Filed: 1993-02-09
Abstract: A plain bearing material formed from two interpenetrating networks, one of polytetrafluoroethylene and the other of polyphenylene sulphide. The material may comprise 45 - 55% by volume of polyphenylene sulphide with the balance being polytetrafluoroethylene.
Patent GB-2265363-A (GB)
Title: Conveyor device for sheets of wrapping material
Inventor: BORIANI SILVANO
IPC: B65H5/22
Filed: 1993-03-12
Abstract: Sheets 2 are transferred, from a first conveyor 4 to a second conveyor 5 forming an angle of other than zero (as shown, a right angle), by a conveyor 25 designed to swing between a lowered position (not shown) wherein the sheets are removed off the first conveyor, and a raised position (shown) wherein the sheets are transferred to the second conveyor. Suction boxes are associated with the operative runs of the three conveyors. The conveyors are driven in steps by synchronised means 11, 21. When the conveyors are stationary, device 25 swings transfer conveyor 25 down to capture a sheet from conveyor 4. The conveyors re-start as conveyor 25 is being returned to its illustrated position. <IMAGE>
Patent GB-2504254-A (GB)
Title: Walking beam hot gas valve
Inventor: STAHLHUTH PAUL L
IPC: F16K11/16
Filed: 1993-04-29
Abstract: A fast-acting, lightweight pressure-balanced pilot 10 or diversion (102) valve for controlling high-temperature gases with low electric power uses a walking beam (30) to depress poppets (16, 20) of simple, substantially uniform cross section which are force balanced and biased against the walking beam (30) by the pressure of the gas being controlled. As a result, all valve parts within the valve body (14) are stressed in compression only. in other aspects of the invention, the valve (10) can be designed in normally-open or normally-closed configurations; the walking beam (120) can be balanced to be impervious to g-forces; the poppets (148, 152) can be of different cross section to avoid the use of a return spring; and the fulcrum of the walking beam (166) can be adjusted to vary the stroke of the poppets (148, 152).Various design requirements can be accommodated by a simple mathematical analysis, and the same walking beam configuration can serve either as a pilot for a second-stage valve (40) or as a single-stage inversion valve (104, 106).