baber/WOPTO huggingface dataset:
Patent GB-2203286-A (GB)
Title: Surge arrester
Inventor: TOPLEY GRAHAM
IPC: H01T4/12
Filed: 1988-03-25
Abstract: A surge arrester comprising a ceramic tube 12, electrodes 10, 11, set with a relatively wide gap 15 and a resistive pellet, 14 positioned to give a narrower gap 17, for example 30 microns wide. The electrode 10 has a cylindrical boss 16 whose outside surface faces the interior cylindrical surface of a recess 13 formed in the electrode 11, thus defining an annular gap 15, wider than the narrow gap. A voltage surge across the electrodes will cause breakdown first of the narrow gap then of the wider gap 15 which has a higher current carrying capacity. The breakdown across the narrow gap causes a voltage drop across the resistive pellet 14. In another embodiment (Fig 2) the narrower gap (30) is formed by a resistive coating (25) on the inside of the ceramic tube (22), the coating being connected to one electrode (20) but spaced from the other electrode (21) by a washer (24). <IMAGE>
Patent GB-2203029-A (GB)
Title: Wall-mountable domestic appliances
Inventor: JENKINSON ROBIN ARTHUR
IPC: A47J31/44
Filed: 1988-03-29
Abstract: A wall mounted domestic appliance e.g. for making beverages comprises a housing (20), means (14) on said housing for supplying electrical energy to water heating means (16), in tank (18). The appliance includes an upper unit 4 containing a filter for coffee on to which boiling water is directed from tank (18) and a lower unit (6). The housing and units together form an at least substantially enclosed cabinet whereby steam normally issuing from the appliance in use can be contained within the housing. The housing is mounted in a wall with a steam outlet (1). In a toaster, bread is grilled in an upper part and then falls into a lower section from which it is removed. Gas heating may be used. <IMAGE>
Patent GB-2220163-A (GB)
Title: Telescopic handles
Inventor: LI TUNG BENNY
IPC: B25G1/04
Filed: 1988-06-30
Abstract: A handle 1 for an appliance is provided which comprises a first tube 2, a second tube 3 arranged telescopically with the first tube 2, a crank device 7 located partly within the first tube 2 and partly within the second tube 3 and having thereon a split ring 8 mounted eccentrically with respect to the axis of the tubes 2 and 3, the split ring 8 being located within the first tube 2. Relative rotation of the tubes causes the split ring to engage tube 2 and effect locking of the tubes. <IMAGE>
Patent GB-2207963-A (GB)
Title: A gaiter
Inventor: PRATT RONALD PHILIP
IPC: B25J19/00
Filed: 1988-07-22
Abstract: A gaiter 42 is provided for protecting a mechanical arm 22 from contamination, and which avoids problems caused by leakage through end seals 46 of the gaiter. The gaiter includes a low pressure-drop, high efficiency filter 48 which allows the gaiter to breathe, so minimizing the pressure differences between inside and outside the gaiter during movements of the arm. The filter 48 may be of annular shape, surrounding a part of the arm, and connecting two portions 44,50 of the gaiter. <IMAGE>
Patent GB-2223840-A (GB)
Title: Mounting arrangement for plenum chamber
Inventor: HOBDAY TERENCE VICTOR
IPC: E04B9/02
Filed: 1988-09-27
Abstract: A plenum chamber (1) is mounted by a plurality of adjustable supporting brackets (8). Each bracket comprises a horizontally extending arm (9) which passes slidingly through two guides (10) formed in the side wall (4) of the plenum chamber (1). Each supporting bracket (8) engages a member (2, 3) or element of a false ceiling which bears the load of the plenum chamber. The bracket may include an aperture (17) to receive a drop rod (18). The foot part (12) may be manually snapped off from the remainder of the bracket. <IMAGE>
Patent GB-2225840-A (GB)
Title: Tap particularly for beer
Inventor: EVERITT DAVID GEOFFREY
IPC: B67D1/14
Filed: 1989-10-18
Abstract: A beverage dispensing tap particularly intended for dispensing low carbonated beers incorporates a piston 2 movable within a bore in the tap, the piston having an 'O' ring 14 sealing on a tapered portion 15 of the bore of the tap and an extension nose 21 which extends beyond the sealing 'O' ring and incorporates spiral grooves to agitate beer passing through the tap when the tap is in partly open position with the sealing ring raised from its seat and the nose remaining in reduced portion 17 of the bore. When the tap is fully open the nose is withdrawn from the reduced bore portion. Movement of the piston to the partly open position can be achieved by moving handle 3 in the opposite direction to arrow 8 as well as by movement in the direction of the arrow. <IMAGE>
Patent GB-2227210-A (GB)
Title: Ice-breaking vessel
Inventor: FOULKES THOMAS LAWRENCE
IPC: B63B35/08
Filed: 1989-12-04
Abstract: An ice-breaking vessel equipped with lasers the beams of which are directed on to the ice and may be swept from side to side, oscillated to and fro or moved in an orbital manner, to melt the ice. The beams may be directed in a defocussed state at iced areas of the vessel itself.
Patent GB-2233765-A (GB)
Title: Down-hole liquid detecting apparatus
Inventor: BELSHAW RICHARD JOHN
IPC: E21B47/10
Filed: 1990-03-02
Abstract: A single pair 36 of conductors transmits to the surface a sequence of signals from sensors 38, 39 in a probe 20 for detecting a liquid level and also an oil/water interface within the liquid body. The probe 20 includes a conductivity sensor 38 and an optical sensor 39 for detecting the depth of a layer of oil, gasoline, etc floating on the surface of water in a well. A battery 60 is included in the probe, and a resistor R1 is provided in series with the conductivity sensor. When the probe is in oil, both sensors are OFF, and no voltage is detectable at the surface; when the probe is in air, the optical sensor is ON and the conductivity sensor is OFF, so that a maximum voltage is detectable at the surface; and when the probe is in water, the optical sensor is OFF and the conductivity sensor (with its resistor) is ON, so that an intermediate voltage, as set by the value of the resistor, is detectable at the surface. <IMAGE>
Patent GB-2234403-A (GB)
Title: Electrical connector with electromagnetic interference protection
Inventor: BUSCHER HANS-JOACHIM
IPC: H01R13/658
Filed: 1990-06-11
Abstract: A plug (10) includes a shell (12) and an insulator (18) which carries contact strips (24) and electrical connections (16a). A metal plate (22) passing through the insulator (18) is located between the contact strips (24) and the connections (16a). When the plug is disconnected (lower half of figure 1), a contact (36) mounted in a spring biassed insulating sleeve (42) shorts each contact strip (24), the metal plate (22) and the shell (12). Similarly, further contact (44) can short all or selected connections. When the plug is connected (upper half of figure 1), the contact (36) connects each contact strip (24) to its corresponding connection (16a), without connection to the shell, and the contact (46) is disconnected from the connections (16a). A socket (fig 2) may be configured similarly to the plug (10). <IMAGE>
Patent GB-2246155-A (GB)
Title: An operating mechanism for a blind or shielding device.
Inventor: OSKAM HERMAN
IPC: E06B9/36
Filed: 1990-07-18
Abstract: An operating mechanism for a blind or shielding device having angularly adjustable and retractable slats 12, said mechanism comprising a first driven element 27 for pivotally adjusting the angular orientation of the slats and a second driven element 30 for transversely moving the slats towards and away from the retracted position, a common actuating member 22 for driving said first and second driven elements, a coupling device 24 directly coupling said first driven element to said common actuating member, a final engagement and lost motion mechanism 28,30 for releasibly engaging said common actuating member to said second driven element and allowing entraining of said second driven element after a predetermined number of revolutions of said actuating member neither of two different rotational senses, the final engagement associated with said lost motion mechanism in each rotational sense inducing a reactive force in an axial direction, said reactive force assisting in declutching of said coupling device. <IMAGE>
Patent GB-2246664-A (GB)
Title: Snap action switch
Inventor: DEWHURST ALAN
IPC: H01H13/36
Filed: 1990-07-31
Abstract: In an electrical snap action retractive switch including snap springs 14 arranged between an actuator 12 and a contact carrier 13 which carries a contact 22 cooperable with a fixed contact on an external terminal, the depth of the switch is reduced by positioning the contacts and the springs 15 for returning the actuator 12 to its unactuated state away from the line of action of the actuator 12. This reduction in depth has particular advantages for mounting the switch in substantially flat panels such as for control of electrically operated doors. <IMAGE>
Patent GB-2235744-A (GB)
Title: Self-tapping fastener
Inventor: GMBH ITW-ATECO
IPC: F16B25/06
Filed: 1990-08-29
Abstract: The screw-in torque of a self-tapping screw is minimised by the screw having a cylindrical shank portion 3, a conical portion 4 leading in to the shank portion, and a thread 7 on the shank and the conical portion. The conical portion 4 has a plurality of first conical sub-portions (4') having a first cone angle uniformly distributed about the circumference of the fastener and a plurality of second conical sub-portions (4") with a second cone angle smaller than the first cone angle and arranged between the first conical sub-portions (4'). <IMAGE>
Patent GB-2236837-A (GB)
Title: Tap hole closure
Inventor: EASTWOOD OWEN
IPC: F27D3/15
Filed: 1990-10-09
Abstract: A closure device to throttle the flow of molten metal from a furnace tap hole during tapping and indicate approach of the slag/metal interface to the tap hole comprises a refractory body 1 of elliptical transverse cross-section, longitudinally tapered such that the major axis of the ellipse towards one end 4 of the body 1 is greater than the diameter of a tap hole for which it is intended and the major axis of the ellipse towards the other end 5 of the body 1 is smaller than the diameter of the tap hole for which it is intended, and at any point of contact of the component with the tap hole, the minor axis of the body 1 is less than the diameter of the tap hole. In use the device floats at the slag/metal interface, and is located in the tap hole by tail 2. <IMAGE>
Patent GB-2250772-A (GB)
Title: Locking mechanisms
Inventor: POWELL SIMON COLIN
IPC: E05B15/00
Filed: 1990-11-24
Abstract: In a locking mechanism of the sort by which a door or window that swings open may be secured to the door or window frame a U-section (channel) profile (31) extending along the edge of one pan co-operates with an overlapping L-section profile (32) extending along the other to permit one-way relative swinging movement only, and a bar-like pressure strip (33) within and extending along the U-profile (31) can be moved into or out of movement-preventing contact with the L-profile edge surface (38). <IMAGE>
Patent GB-2252992-A (GB)
Title: Downhole tool
Inventor: INNES FRANK A S
IPC: E21B47/18
Filed: 1991-02-22
Abstract: A downhole tool (30) for positioning in a drill collar (31) to generate pressure pulses in a drilling fluid comprising an elongate body (3, 18) and a plurality of blades spaced around the body. The blades are each divided into an independent front section (4) and rear section (6), one of the front and rear sections being mounted on a rotatable member (8) such that the front and rear sections are angularly displaceable relative to each other between a first position in which the sections are aligned and a second position in which the rear sections obstruct fluid flow between the front sections to generate a pressure pulse. The tool includes a mean (13) for generating a torque on the rotatable member, and an escapement means (10) which is radially movable to alternately engage and disengage with teeth (12) on the rotatable member to permit stepwise rotation thereof, and thus to move the blade sections between the first and second position. <IMAGE>
Patent GB-2245068-A (GB)
Title: Testing bacteriological activity
Inventor: WHITLEY DONALD CHARLES
IPC: C12M1/34
Filed: 1991-02-18
Abstract: Bacterial growth testing apparatus comprises at least one heat conducting block (10) with through-holes (12) for plural test cells (50), respectively. Controlled heating provision (14, 16), assures test cells (50) surrounded by material of said block (10) are maintained at a suitable temperature. Each test cell (50) is generally tubular and extends from releasable electrical connectors (52, 60) at one block face to protrude from the other block face with plural closures (70) for said cells (50) applied thereto for automatic pressure relief. Electronic monitoring and display means (150-154) processes signals according to electrical current applied to electrodes (54) as the cells (50) and as affected by bacterial activity in content of said cells (50). The monitoring and display means (150-154) is capable of servicing said one and other similar blocks (10) and associated test cells (50) on a modular extension basis for connections (160, 162) therebetween.
Patent GB-2241328-A (GB)
Title: Read-out circuit for a photodetector
Inventor: BALLINGALL RONALD ALEXANDER
IPC: H04N5/361
Filed: 1991-03-05
Abstract: PCT No. PCT/GB89/01014 Sec. 371 Date Mar. 19, 1991 Sec. 102(e) Date Mar. 19, 1991 PCT Filed Aug. 31, 1989 PCT Pub. No. WO90/03080 PCT Pub. Date Mar. 22, 1990.A read-out circuit for a photodetector incorporates a photodiode detector (1) connected via a preamplifier (2) to a storage capacitor (C5). The capacitor (C5) is also connected to a constant current circuit (Cc, T3 to T7) providing a correction current controlled by a voltage on a reference capacitor (Cc). The reference capacitor (Cc) is charged by the amplified photodiode output current during a calibration phase. During a measurement phase, the storage capacitor (C5) integrates the difference between the amplified photodiode output current and the correction current. This provides pedestal signal substraction at the signal integration point. An array of photodetectors may be provided with a corresponding array of read-out circuits integrated in a single semiconductor substrate.
Patent GB-2243790-A (GB)
Title: Games racket frame
Inventor: HAINES ROBERT CHRISTOPHER
IPC: A63B49/14
Filed: 1991-04-02
Abstract: A games racket frame is discontinuous being in two parts (11, 12). The parts (11, 12) are joined by means of a vibration-damping material (21) secured in position by plugs (23, 24). A reinforcing member (14) is also provided and this may comprise a collar (20) surrounding the discontinuity (13), together with a rod (25) contained within the vibration-damping material (21). Rackets according to the invention exhibit reduced transmission of shock and vibration to the player, thus minimising the risk of "tennis elbow" and similar injuries. <IMAGE>
Patent GB-2246222-A (GB)
Title: Central processing unit
Inventor: HIROKAWA MASAYUKI
IPC: G06F9/22
Filed: 1991-06-14
Abstract: There is provided a central processing unit that includes a flash EEPROM 16 which stores micro instructions. The advantage of such a memory device is that the micro instructions can be erased and written with an electrical signal from the control circuit 17. Also inexpensive packaging of the CPU is possible in comparison with previously used EPROMS. <IMAGE>
Patent GB-2249023-A (GB)
Title: Body support devices
Inventor: HOWES PHILIP CHARLES
IPC: A47G9/10
Filed: 1991-08-23
Abstract: A device such as a pillow includes a pad (1) of resilient foam plastics which is enclosed within a close-fitting cotton case. On the underside of the pad strips (2, 3, 6, and 9) of similar material are secured to the pad by stitching to form pockets extending along the edges of the pad, at least the front pocket being connected to the pad by a hinge-like connection (12). Inflated bladders (13) are inserted into each of the pockets to provide adjustable supports for the pad. Lengths of resiliently extensible webbing (15, 16) and (18, 19) are secured to the side edges of the pad (1), and the webbing is provided with releasable fastener elements (17, 20) so that the tension in the webbing can be adjusted.
Patent GB-2246240-A (GB)
Title: Switches
Inventor: LEMARQUAND PIERRE
IPC: H01H89/08
Filed: 1991-09-03
Abstract: A switch comprises at least one pole having a movable contact bridge for bridging fixed contacts, a monostable electromagnet having an armature for opening and closing the contacts via a slide 40 and a return means for urging the armature towards a rest position. The armature return means included a spring biased lever 51 coupled to the slide 40 such that a force is transmitted to the slide 40 which decreases during movement of the armature in the contact closing direction. <IMAGE>
Patent GB-2249498-A (GB)
Title: Electrostatic spray painting apparatus
Inventor: ISHIBASHI ICHIROU
IPC: B05B5/16
Filed: 1991-10-22
Abstract: An electrostatic spray painting apparatus comprises an electrically-insulated intermediate reservoir for storing therein conductive paint to which a high voltage is directly applied. The reservoir includes a cylinder, a piston reciprocatively and slidably disposed within the cylinder, a fluid-flow directing member protrudently formed in a part of a cylinder chamber used to be charged with the paint, the cylinder chamber being defined by the cylinder and the piston, an injection hole defined near an outer peripheral edge of a cylinder wall so as to be connected to a paint and cleaning fluid feed source, and a discharge hole centrally defined in the cylinder wall so as to be connected to a spray gun, the discharge hole being used to discharge the paint and the cleaning liquid. In another embodiment a pressurised air feed mechanism is provided to the intermediate reservoir so as to deliver the paint from the reservoir to a spray gun. A vent mechanism is also provided for discharging the pressurised air to the outside of the said reservoir. <IMAGE>
Patent GB-2249839-A (GB)
Title: Misfire discriminating method for an engine
Inventor: IMAI RYUICHIRO
IPC: G01M15/11
Filed: 1991-10-28
Abstract: A method of discriminating misfire of any cylinder of a multicylinder engine comprises the steps of discriminating a cylinder number (#i) at a present combustion stroke (S101); calculating a present momentum for the present combustion stroke, in a period in which no combustive work is done (S105); computing a second momentum for a second stroke preceding the present combustion stroke by two strokes, in a period in which no combustive work is done (S106); averaging the present and second momentums (S107); deriving a first momentum for a first stroke preceding the present combustion stroke by one stroke, in a period in which no combustive work is done (S107); taking a difference between the averaged momentum and the first momentum (S107); setting a misfire judgement level from a map of combustion conditions as a function of said first momentum and engine load data (S108); and comparing the difference with the misfire judgement level (S109), thereby to determine a misfire condition for each cylinder without being affected by operational tolerances. <IMAGE>
Patent GB-2251529-A (GB)
Title: Outer case for a telephone
Inventor: JOKINEN TAUNO
IPC: H04M1/23
Filed: 1991-11-19
Abstract: The outer part 3 of a two-part case for a telephone is provided with apertures 6 for press keys 2 which are in resilient connection with the inner part 1 thereof. The press keys 2 protrude through the apertures 6 of the outer part 3 when said inner part 1 is lying against the inner surface of the outer part 3. According to the invention, the inner part 1 with the press keys 2, and the outer part 3 are moulded into one, whereby the moulding is accomplished in two steps by changing one of the mould halves and using different plastics. <IMAGE>
Patent GB-2262132-A (GB)
Title: Cash drop facility
Inventor: EVANS JOHN LESLIE
IPC: E05G7/00
Filed: 1992-04-14
Abstract: A cash drop facility comprising a casing (10) with a drawer (11) slidable therein from an open position in which items can be placed in the drawer to a closed position inside the casing, the bottom of the drawer having an opening (15) therein and slidable with respect to a plate (18) which is also slidable in and out of the casing, the plate containing an opening (20), the arrangement being such that in the closed position the openings are aligned and items placed in the drawer pass through both openings to a secure compartment below. <IMAGE>
Patent GB-2267112-A (GB)
Title: Folding Ladder.
Inventor: CHANG WAN-LI
IPC: E06C1/383
Filed: 1992-05-15
Abstract: A locking device for preventing bidirectionally foldable step ladders from folding when in an unfolded position is used with the step ladders including two pairs of U-shaped side rails and a plurality of foldable steps (20) linked by braces (15) to a plate (13) slidably received within respective side rails. The locking device has an element (17) pivotally attached within a side rail, arms (19) and a handle (30) which co-operate with a bracket (14) fixed to the plate to prevent the plate from moving upward when the step ladder is unfolded. The downward movement of the slidable plate (13) is limited by stops (32). <IMAGE>
Patent GB-2257318-A (GB)
Title: Tuning apparatus
Inventor: MCCORMACK JAMES OWEN
IPC: H04N7/20
Filed: 1992-05-27
Abstract: A video tuner capable of changing TV channels directly in conjunction with a TV set and/or capable of changing satellite channels with may be received from a satellite antenna (1). The device overcomes the problem that in the past a separate tuner has been required to change the signal/polarity of a carrier signal from a satellite antenna and a further tuner (7) and remote control (7a) have been required to change TV channels. The device in a preferred embodiment is in the form of a plug-in chip or dedicated circuit, also overcomes a problem of having large amounts of wiring when there are more than one satellite receiver. Power supplies taken from an internal bus within a conventional receiver and control signals are provided from an existing micro-processor (18). <IMAGE>
Patent GB-2268142-A (GB)
Title: Internal cycle rack
Inventor: WESBROOM DAVID JOHN
IPC: B62H3/00
Filed: 1992-07-01
Abstract: A frame for retaining cycles in an upright position whilst being transported inside a Caravan, motorhome or similar vehicle, comprises two upright legs with adjustable hanging arms mounted on a base frame incorporating an adjustable foot and a tensioner. <IMAGE>
Patent GB-2271080-A (GB)
Title: Print monitor.
Inventor: LEAR STANLEY MALCOLM
IPC: B41F33/00
Filed: 1992-09-08
Abstract: An apparatus for monitoring printed matter in a printing press comprises a video camera 2 directed at a pattern of dots printed on successive copies to form an enlarged image of the dot pattern in a frame store 5. An analyser 6 analyses the successive video images to measure or determine various parameters of the dot pattern, such as dot gain, spread, shape, skip, slur, ink density and registration of the component colours. The measurements determined can be interpreted by the analyser 6 to control or adjust the printing press, in a closed-loop control system. <IMAGE>
Patent GB-2259963-A (GB)
Title: Demountable rotary cam for tufting machine
Inventor: BEASLEY MAX MARION
IPC: D05C15/32
Filed: 1992-09-09
Abstract: A demountable rotary cam has portions 21, 40 that can be coupled and securely mounted on a rotatable shaft, and can also be demounted and interchanged with other similar eccentrics having different throws. The demountable rotary cam is particularly suited to vary the stroke of the needle bar in a tufting machine and an adjusting means is provided to maintain the proper relationship between the needles and loopers over a range of strokes. The needle bar is driven by a connecting rod 15 which has one end encircling the demountable cam or eccentric. <IMAGE>