baber/WOPTO huggingface dataset:
Patent GB-2282015-A (GB)
Title: Low noise converter
Inventor: OIKAWA KAZUMASA
IPC: H02M7/537
Filed: 1994-04-08
Abstract: In a convertor, including an input transformer T1 for inputting a repetitive waveform signal, a first circuit connects a first terminal 2A of the secondary winding of the input transformer to coupled bases or gates of a first series connection of complementary transistors Q1, Q2, a second circuit connects a second terminal 2B of the secondary of the input transformer to coupled bases or gates of a second series connection of complementary transistors Q3, Q4, and a first terminal of a primary winding N3 of an output transformer T2 is coupled to a common node of the first complementary transistors Q1, Q2. A second terminal of the primary winding of the output transformer is coupled to a common node of the second complementary transistors Q3, Q4. As the convertor includes two sets of complementary transistors having no simultaneous "ON" state, the rising and falling edges of the output formation waveform become smooth and external noise is diminished. The transistors can be field effective transistors (Fig. 6). The convertor can be used for a switching regulator or a DC stabilizing power source (Fig. 5) or a DC - AC inverter for a dimmer and other uses. <IMAGE>
Patent GB-2288951-A (GB)
Title: Synchronising simulcast systems
Inventor: YIP PETER CHAK LAM
IPC: H04Q7/08
Filed: 1994-04-25
Abstract: In a simulcast radio transmission system, each of a plurality of transmitting base stations (Fig. 3) has a susbsystem, 1 to 9, which derives a local time reference signal at 4 by generating a time base signal at 3 from the carrier of an AM broadcast readily available at each base station. The time reference signals are synchronised in phase by means of synchronising signals derived in each subsystem from a second readily available broadcast, such as GPS transmissions, or (as shown) from RDS data in an FM broadcast. A codeword which appears periodically in the RDS data, eg. Programme ID code sent 11.4 times a second, is used to derive the synchronising signals. A codeword memory 8 indicates which codeword is to be used. A circuit 9 may delay the synchronising signals by a delay time adjusted to compensate for differences in processing times in the subsystems and for differences in propagation times between the FM transmitter and the base stations. Such an arrangement may be used for synchronising simulcast transmitters in paging systems, digital cellular systems, or particularly CT2 telepoint systems. <IMAGE>
Patent GB-2278370-A (GB)
Title: Flux containing viscous agent
Inventor: SATSURAI REIKA
IPC: B23K35/36
Filed: 1994-05-27
Abstract: A flux applied in soldering to a substrate metal formed thereon with a firmly oxidized layer, the flux containing at least stannous chloride, a non-oxidizing acid and a viscous agent and excluding zinc chloride therefrom. The non-oxidizing acid may be hydrochloric acid. The viscous agent may be glycerol, polyethyleneglycol or sorbitol. Additional ingredients present are potassium chloride, sodium chloride, ammonium chloride or nickel chloride.
Patent GB-2278185-A (GB)
Title: Fluid pressure regulators
Inventor: WHITE LAWRENCE W
IPC: G05D16/06
Filed: 1991-12-03
Abstract: A fluid pressure regulator provides features which enable an extended regulator life in high pressure service. Dual flexible diaphragms (35, 40) provide chemical resistance in contact with the working fluid and abrasion and fatigue resistance in contact with a backup plate (4) and piston assembly (5). Provision is made for preventing fretting corrosion between the piston (5) and the backup plate (4) by coating at least one of the surfaces, if necessary, to assure that dissimilar metals only are in contact in that couple. <IMAGE>
Patent GB-2284854-A (GB)
Title: Buckles
Inventor: ROWELL LANCELOT NICHOLSON
IPC: A44B11/12
Filed: 1994-12-02
Abstract: A buckle 30 for a curtain-sided vehicle comprises a lever element 33 latched within a frame 31 by means of the hairpin bend regions 44 of a latch member 40, which on engagement ride up ramp portions 39 to resiliently engage in recesses 38 of the frame. A pull downwards on the transverse portion of the latch to release it causes its arms to flex within holes 36 of the frame. In a modified latch (50, Fig 8 not shown) the arms (52) do not cross each other but double-back on themselves. <IMAGE>
Patent GB-2288755-A (GB)
Title: Coated fabric
Inventor: LOFTS PETER
IPC: D06N3/10
Filed: 1995-04-27
Abstract: A method of making a coated fabric to be used in a phase separation process comprising the steps of impregnating a cloth with at least one coagulable polymer latex and coagulating the polymer on or in the cloth. The coagulation is carried from a water phase so as to provide a cloth having a porous polymer coating thereon and/or therein. The water phase is preferably steam. The coated materials are used mainly for filtering but may also be used in paper-making processes.
Patent GB-2300806-A (GB)
Title: Liquid absorbent bedding
Inventor: CHRISTIE TILLY
IPC: A61F13/42
Filed: 1995-05-01
Abstract: Disposable bedding for infants comprises a liquid absorbent compressible core 6 between a liquid permeable non-absorbent upper layer 1 and an impermeable backing sheet 4. The device may be used as a mattress cover or as the mattress itself. It may include a wetness indicator, fragrant or medicinal compounds, and means such as adhesive patches 8, hook-and-loop fasteners (9, Fig 4c), corner gussets (10, Fig 4b) or flaps 11 for securing it in place.
Patent GB-2290054-A (GB)
Title: Illuminatable pen/pencil.
Inventor: MANSFIELD DAVID ERNEST
IPC: B43K29/10
Filed: 1995-05-26
Abstract: An illuminatable pen/pencil which has a light metal opaque tubular casing 10 within which is a light source comprising a bulb 18 and a single cell battery 19. The bulb 18 is activated by switch 13 to illuminate the ball-point pen 16 via a clear plastic tubular light guide 12. The writing unit 11, 16, 17 is located within the light guide. The battery 19, bulb 18, light-guide, and ball-point pen with its ink reservoir 17 are replaceable through the screw-threaded body 14 of the switch 13. <IMAGE>
Patent GB-2291144-A (GB)
Title: Friction clutch
Inventor: GROSSE-ERDMANN MICHAEL
IPC: F16D13/71
Filed: 1995-07-12
Abstract: A friction clutch has a flywheel (1) and a clutch housing (9), the flywheei (1) having a predetermined diameter region (3) provided for receiving a cylindrical wall (12) of the clutch housing (9) secured against relative rotation and axial movements. The connection between the flywheel (1) and the wall (12) of the clutch housing (9) is by clamping to produce a forcible connection. The clamping action may be produced by clamping means (5), or shrinking the clutch housing (9) onto the flywheel (1) (Fig 6). <IMAGE>
Patent GB-2292424-A (GB)
Title: Variable capacity hydraulic pump
Inventor: KADLICKO GEORGE
IPC: F04B49/00
Filed: 1995-08-17
Abstract: A variable capacity axial piston pump has multiple pistons (22) and cylinders (14) with a spill port (80) in each piston. A sleeve (82) controls venting from the spill port and an inlet (46) is provided to each cylinder, by way of a check valve (50) from a fluid supply gallery (42). When a piston commences its inward pumping stroke, some hydraulic fluid which has entered the cylinder through the check valve (50) during the suction stroke, flows back to the gallery (42) through the spill port. Thus the effective pumping stroke begins when the sleeve closes the spill port. The sleeves are axially adjusted by a control member (90) biased by a spring (96) and subjected to a control pressure supplied to a chamber (92). A swash plate (36) actuates each piston via a tappet (38) slidable in a housing bore (74) against the action of a spring (62). <IMAGE>
Patent GB-2293424-A (GB)
Title: Undersea hydraulic coupling with metal seals
Inventor: SMITH III ROBERT E
IPC: F16L29/04
Filed: 1995-02-07
Abstract: An undersea hydraulic coupling has a pair of hollow metal seals (48, 60) which are pressure-energized to seal between the male (10) and female (20) members of the coupling. One of the hollow metal seals (48) is configured to expand radially while the second hollow metal seal (60) is compressible along the longitudinal axis of the coupling. These seals provide a fluid-tight sealing arrangement upon pressurization of the coupling, without need for external pre-load devices. <IMAGE>
Patent GB-2306185-A (GB)
Title: Security post
Inventor: CHINN NORMAN JOHN LEVI
IPC: E01F13/02
Filed: 1995-10-13
Abstract: A sleeve 1 incorporates a pair of articulated plates 5 and 6 which are pivoted respectively about pivot members 7 and 8 and are also linked by a rod 9. The pivot member 7 can be rotated by a cylinder lock 10. Movement of the plate 5 causes a corresponding movement of the plate 6 about its pivot 8 through the connecting rod 9. In the lowered position, a flange 12 on the plate 6 locates below a retaining bar 13 which forms part of the socket 2. This prevents the sleeve 1 from being removed from the socket 2. In the raised position 6A, shown in dashed lines, the flange 12 is released from the bar 13 so that the post can be removed from the socket 2.
Patent GB-2299848-A (GB)
Title: Load insulator unit comprising measuring means that measures the resistance of an insulating insert
Inventor: PRATT HUGH MICHAEL OPPEN
IPC: G01L5/10
Filed: 1993-02-03
Abstract: A load insulator unit 2 comprises a microprocessor 24 connected by connections 26 on opposite sides of a saddle shaped insulating insert 8 which is interposed between chain links 4. The microprocessor 24 applies a voltage across insert 8 and measures, via measuring means, the current leakage which is indicative of the insulating condition of the insert 8, this may be continuously monitored or a prior use test mode may be initiated by manually closing switch S1. The microprocessor 24 includes voltage measuring means, clock means and display means 28, eg a LED or LCD display. The clock means outputs a warning signal to the display 28 after a predetermined period of time. Display 28 indicates to a user that the unit 2 must be, for example, recalibrated or tested. Microprocessor 24 includes a memory that records the electrical history of the unit 2, eg day and time of an electrical strike detected by the voltage measuring means. The unit 2 may be combined with a load measuring device, eg strain gauges (see fig 4). A tubular housing 22 encloses the chain links 4 and insert 8 which are set within the housing 22 by a foam-like material.
Patent GB-2303053-A (GB)
Title: Cutting devices
Inventor: ARMSTRONG GAVIN CAMPBELL
IPC: B02C18/36
Filed: 1996-07-05
Abstract: A meat cutting device (16) in a butchers' mincing machine is star shaped and has cutting inserts (22, 23, 24, 25) brazed on the arms (18, 19, 20, 21) of the star shape. The cutting inserts (22, 23, 24, 25) are strip shaped, narrow in the direction of cutting and of material which is hard, wear resistant and does not cause galling of the back plate of the mincing machine. The material of the arms (18, 19, 20, 21) which supports the cutting inserts wears more readily than the insert material so that the contact area of "land" of the inserts against the backing plate does not increase as the insert wears down.
Patent GB-2309541-A (GB)
Title: Telescoping type zoom lens and cam mechanism therefor
Inventor: NOMURA HIROSHI
IPC: G03B7/097
Filed: 1997-01-24
Abstract: A lens barrel has first, second and third barrels 19,17,16 concentrically arranged in this order from an optical axis and includes: at least one cam slot 17b formed on the second barrel and extending oblique to a direction of the optical axis; at least one guide groove 16c formed on an inner periphery of the third barrel; at least one follower 19a formed on an outer periphery of the first barrel and engaging with the at least one guide through the at least one cam slot 17b; and at least one member 17e integrally formed on an outer periphery of the second barrel adjacent to an end of the at least one cam slot, the at least one member including a surface (17m, Figs 3-6) formed thereon to contact the at least one follower when the at least one follower moves to the end of the at least one cam slot. The cam slot 17b and follower 19a preferably taper away from the optical axis.
Patent GB-2325426-A (GB)
Title: Device for supporting a drum during machining
Inventor: VERVOORT BART
IPC: B23B31/40
Filed: 1997-05-19
Abstract: A drum support member for supporting a drum 10 during machining comprises a rotatable shaft 30 and drum support means 20 on the shaft. The shaft 30 is provided with first 40 and second 42 drivable dogs. The drum support means 20 comprises a central sponge position 22, and rubber bung positions 24,26. A drivable headstock 50 and tailstock 60 compress the bung portions which expand radially to thereby grip the drum 10.
Patent GB-2327452-A (GB)
Title: Hinged cover for vending machine
Inventor: ORSBORN BRIAN JOSEPH
IPC: G09F7/12
Filed: 1997-08-18
Abstract: A vending machine has a rear portion (2) and a front portion (4) hingedly connected thereto. A transparent cover (22) with a peripheral flange (24) snugly envelops the front face of the front portion (4). A paper sheet (28) bearing an advertisement is adhesively secured to the inner face of the front portion (4). The flange (24) of the cover (22) is hingedly secured to the side wall of the front portion (4) to allow access to the inner face of the cover (22) to enable the advertisement to be replaced.
Patent GB-2323308-A (GB)
Title: Control cicuit for water distiller
Inventor: BELONGIA DAVID C
IPC: C02F1/18
Filed: 1997-10-22
Abstract: A distiller control circuit includes a power bus comprising first and second lines 45, 47 and a fan circuit 59 connected across the lines and comprising a fan motor 61 and a fan thermostat 63 in series. There is also a heater circuit 65 connected across the lines and comprising a heater 67 and a heater thermostat 69 in series. The fan thermostat is normally open, closes at an elevated temperature and automatically re-opens when the temperature subsides. The heater thermostat is normally closed, opens at an elevated temperature and must be manually reset to the closed position. The raw water vessel has a reset mechanism with a pivot-mounted bar 91 and a contact surface 95 on the bar. When the contact surface is depressed, the bar is urged to a second position for resetting the heater thermostat. The heater circuit terminates in a two-stud male connector and the platform has a two-slot female connector. The studs slide into electrically-conductive engagement with the slots when the raw water vessel is inserted into the condensing platform.
Patent GB-2319466-A (GB)
Title: Electric toothbrush
Inventor: HUI FUNG KUT
IPC: A61C17/34
Filed: 1997-11-18
Abstract: An electric toothbrush has an elongate shank 11 and a drive shaft formed in two sections 16 and 17. The sections are drivingly coupled together by a coil spring 24. The shank 11 is formed in two sections 21 and 22 joined together by a flexible ribbed seal 23. The shank is therefore able to flex while the drive shaft continues to run normally without adding strain to the electric motor which would amongst other things increase electric power required. Rigid bars 25 restrict the flexibility of the shank parts into one plane.
Patent GB-2316649-A (GB)
Title: A method for the combined injection and compression molding of golf balls
Inventor: BOEHM HERBERT C
IPC: A63B45/00
Filed: 1996-05-28
Abstract: The invention includes a method of manufacturing a golf ball by placing a golf ball core (42) into a preform mold cavity, injection molding a cover around the core (42), placing the resultant preform (56) into dimpled compression mold cavities (76, 78) and compression molding the cover to define a golf ball. The invention also includes injection molding a golf ball preform (56) into an outer non-dimpled elongated spherical shape having an elongate axis, and compression molding a spherical golf ball from the preform (56) in substantially spherical dimpled compression mold cavities (76, 78).
Patent GB-2333035-A (GB)
Title: Seat stick
Inventor: CHANIN BRIAN ARTHUR
IPC: A47C9/10
Filed: 1998-01-09
Abstract: A seat stick comprises an extendable shaft 10 having at its upper end a seat 11 which may be opened from a folded position, where it lies along the axis of the shaft, into a position where it extends across the top of the shaft. Folding support struts 23 extend between the underside of the seat 11 and the shaft 10 when the seat is opened. At the lower end of the shaft are two folding stabilisers 34 which may be swung outwards and locked to engage the ground on each side of the shaft. The folding seat 11 is formed with hand grips 28 at its opposite side edges, and the overall width of the seat, when in the open position, is greater than 280 mm. These features make the seat stick particularly stable for disabled or infirm users, who may more easily rise from the seat by holding the handgrips and using their arms to push themselves up.
Patent GB-2321527-A (GB)
Title: Maintaining sample cell membrane gas tightness
Inventor: DERUYTER CHRISTIAN
IPC: G01N15/08
Filed: 1998-01-16
Abstract: A method and device for improving the duration over which semi-permeable membranes remain gas-tight when used in a receptacle such as a test cell, for example, communicating with a hydraulic system allowing pressurised multi-phase fluids to be displaced through the sample. The hydraulic system comprises hydraulic circuits 11, 17, 13, 15, burettes 12, 14 for separating the fluids, pumps OP, WP and switching means (V) allowing fluids to be displaced in the sample (drainage and imbibition) as well as means for establishing a circulation of wetting liquids in contact with the membranes M1, M2 in order to keep them saturated with liquid, thereby preventing gas from passing through them for a long period during phases when gas is being injected into the samples. Application to three-phase measurements on geological samples, for example.
Patent GB-2321855-A (GB)
Title: Ball striking device
Inventor: HOWARD HERMAN S
IPC: A63B53/02
Filed: 1998-02-09
Abstract: A ball striking device, such as a golf club, hockey stick, or tennis racket (fig.5), in which a greater striking power is imparted to the ball, puck or the like by inserting a connecting elastomeric member 5 between the head 2 or striking portion and the shaft portion 1 of the device. The inherent resilient characteristics of the member allows an enhancement of the forward momentum/motion imparted to the ball.
Patent GB-2334386-A (GB)
Title: An interface card connector
Inventor: YANG GEORGE
IPC: G06F13/40
Filed: 1998-02-13
Abstract: An interface card connector including a plastic main body 4 and a PC board 5 having a main portion 50 and a front insertion portion 51 slightly narrower than the main portion 50. The insertion portion 51 is provided on top and bottom surfaces with multiple strips of conductor contacts 52. The plastic main body 4 includes a transverse opening 41 for the insertion portion to extend through and two backward extended protective side walls 42. The protective side walls 42 are provided on inner surfaces with two guiding channels 43 with a distance between the channels equal to the width of the main portion of the PC board 5. The PC board 5 may be pushed toward the plastic main body 4 with two sides of its main portion engaging into the two guiding channels and its insertion portion 52 projecting from the transverse opening of the plastic main body 4, such that the PC board 5 may be directly electrically connected to a matching connector via its insertion portion.
Patent GB-2329023-A (GB)
Title: A ring shaped temperature sensor mounting for inside a pipeway.
Inventor: CORNELIUS RICHARD EDWARD JULIA
IPC: G01K13/02
Filed: 1998-04-07
Abstract: A sensor arrangement for sensing the temperature of a fluid flowing along a pipeway, comprises a sensor ring 33 mounted within a passage in a body and arranged for the fluid to pass through the sensor ring, and a temperature sensor 35 positioned against the outer surface of the sensor ring.
Patent GB-2334991-A (GB)
Title: A door with a reinforced frame
Inventor: LAW IAN DOUGLAS
IPC: E06B7/23
Filed: 1998-07-07
Abstract: The present invention relates to a door comprising a support frame (10), face panels (13, 15), and a reinforcing section (32) sandwiched between at least part of the frame and a face panel. The reinforcing section is preferably a steel plate and has stiffening return portion extending at least part way across the thickness of the door. The door may be fabricated from UPVC or glass reinforced polyester, with the support frame comprising extruded or pultruded lengths joined together in a substantially rectangular form. The face panels provide front and back faces for the door. The reinforcing section may have a kink provided therein to allow a gasket holder (38) to be attached thereto. Alternatively, the gasket holder may be integral with the support frame or snap fitted onto a clip provided on the support frame.
Patent GB-2329696-A (GB)
Title: Projectile
Inventor: RIEGER GERALD
IPC: F42B12/28
Filed: 1998-09-16
Abstract: A projectile 10 is described having a one-piece body 12 and structural fragmentation portions 26,28 which are in the form of pre-fragmented pre-notched rings 32,34 and which are provided in a single layer and/or in several layers. The rings 32,34 rest against the inside of the projectile body 12 and are disposed in the projectile 10 in such a way as to be axially braced free from play by means of at least one clamping device 40,42, so as to prevent slipping of the pre-fragmented rings - which are to be simply manufactured - in axial direction of the projectile with the stress produced on delivery or when the projectile is fired.
Patent GB-2332490-A (GB)
Title: Roller pin materials for enhanced cam durability
Inventor: NAYLOR MALCOLM G
IPC: F01L1/14
Filed: 1998-10-30
Abstract: A low friction, wear-resistant pin (18) for a cam follower roller (16) useful in the injector and valve trains of internal combustion engines, particularly diesel engines, to enhance cam durability and life. The material selected for the pin (18), which is selected for its wear resistance, its corrosion resistance, its low friction, and its ability to embed hard debris and other oil contaminants without scuffing, has been demonstrated to improve cam life dramatically. A preferred roller pin material that achieves this objective is a copper-based alloy, most preferably a leaded manganese silicon bronze.
Patent GB-2331094-A (GB)
Title: Mold opening and closing mechanism with shaft support for mold carriers
Inventor: LOVELL WALTER E
IPC: C03B9/16
Filed: 1998-11-04
Abstract: A mold opening and closing mechanism is disclosed for an I.S. machine having a plurality of individual sections. A pair of opposed mold holding mechanisms (30, 24) is supported on the top (94A, 94B) of the section frame for linear displacement between a separated retracted position and an advanced position where the molds held by the mold support mechanisms will forcefully engage. A mold holding mechanism is secured to the free ends of a pair of round shafts (50C) which are slidably supported within horizontally separated bearings (170) in a housing (90) supported on said section frame and extending vertically upwardly.