baber/WOPTO huggingface dataset:
Patent GB-2369247-A (GB)
Title: Sea surface antenna
Inventor: SMITH MARTIN STEVENS
IPC: H01Q1/34
Filed: 1990-05-02
Abstract: A sea surface antenna comprises a cylindrical tube of metallic material 13 on a dielectric former 11. The tube has a longitudinal slot 15 shorted at each end and coupled at its midpoint to a coaxial feed 18. The slot is bridged by two groups of capacitances 19 each group being distributed along a respective half of the slot. The length of the antenna is less than 0.25 * and the diameter of the antenna is less than 0.02 *, where * is the free space wavelength at the operating frequency. The antenna is dimensioned so as to operate in an evanescent mode at a resonant frequency less than the cut-off frequency.
Patent GB-2245450-A (GB)
Title: Speaker for use in a sound output system
Inventor: CURTIS MERVYN STANLEY
IPC: H04R1/28
Filed: 1990-06-19
Abstract: A loudspeaker in which out-of-phase sound is attenuated comprises a drive unit (10) in or on a housing (12). A sound attenuating path from the concealed face of the drive unit (10) to the walls of the housing (12) is by a first region (42) air-tightly separated from a surrounding second region (44) by a sack-shaped partition (26) of rubber or other suitable soft material. The region (44) may be at atmospheric or reduced pressure or it may be constituted by a skinned layer of plastics foam.
Patent GB-2233610-A (GB)
Title: Compact pen with extendable body
Inventor: SEARLES MARK AUBREY
IPC: B43K5/00
Filed: 1990-06-28
Abstract: A pen has a main body 6 comprising two tubular sections positioned one inside the other, the inner section 4 houses the refill 5 and is able to slide partially in and out of the outer section 3 through a bush 9 adjacent to its open end, allowing extension of the pen to a suitable length for writing. A cap 1 connects to the main body 6 and encloses the nib of the pen when the inner section 4 is in its retracted position, resulting in a pen which is compact for storage. The inner section 4 incorporates means for controlling its sliding motion during extension or retraction by cooperation with grooves or depressions in the curved inner surface of the outer section 3. The means may comprise spring-loaded balls 10 which engage in depressions 13 or 16 so as to lock the body in its retracted or extended position. The balls may run along grooves 14, extending parallel to the pen axis, during the course of the sliding motion. The cap may incorporate means for attaching a key ring or cord. <IMAGE>
Patent GB-2248763-A (GB)
Title: Restraining device for persons
Inventor: LIU ING-NAN
IPC: B60R22/00
Filed: 1990-10-15
Abstract: Disclosed is a restraining device (1, 1') suitable for restraining body parts of a person in a vehicle and particularly, although not exclusively, for holding a person's head (T) against the head rest (C) of a vehicle seat or for holding a person's legs (F) together, which comprises two straps (1, 1') jointed together. A part of each strap (1, 1') may be formed of an elastic material so that the restraining device is permitted to extend flexibly within certain range. Each of the two straps (1, 1') of the restraining device may have a male fastening strip and a female fastening strip at its respective ends so that one belt body (1') can be fastened around the headrest (C) of an internal vehicle seat and the other strap (1) can be fastened around the person's head (T) to secure the person's head to the vehicle seat. One of the two straps (1, 1') can also be reversed and the two straps can then together be fastened one outside the other to secure the person's two legs (F) together preventing the legs from parting while the person is sleeping in the seat. <IMAGE>
Patent GB-2237405-A (GB)
Title: Locating of a missile
Inventor: SCHMID CHRISTIAN
IPC: G02B17/08
Filed: 1990-10-22
Abstract: Locating and/or controlling a missile uses imaging optics (10) for short- and long-range and operates in a wavelength range of 1.8-2.8 mu m. Short-range optical element(s) (11) and long-range optical element(s) (12) have a common optical axis (100). A radial operating shutter (14) is associated with the long-range optical element(s) (12), a spectral filter (11a) is associated with the short-range optical element(s) (11), and detector means (13) serves for images from both long- and short-ranges. <IMAGE>
Patent GB-2242792-A (GB)
Title: Reactive power generator
Inventor: AINSWORTH JOHN DESMOND
IPC: H02M7/17
Filed: 1991-03-04
Abstract: A static VAr generator for use in controlling reactive power flow in an a.c. power system, and comprising a 6-pulse voltage-commutated inverter bridge 8 loaded at its d.c. output by a capacitor bank 4, and coupled by inductive components 7 to a three-phase a.c. supply 2. In the bridge 8 there is provided a pair of columns 9, 10; 11,12; 13, 14 of switches such as gate turn-off (GTO) thyristors for each phase A, B, C. The thyristors in each pair of columns (for example, for phase A: T1P, T1Q and T4P, T4Q) are controlled so as to conduct at intervals which are staggered symmetrically in phase with respect to the a.c. cycle by an angle  theta . The resulting back-emf (eA) comprises a stepped triangular waveform having a considerably lower harmonic content than the usual square wave. Suitable choice of the angle  theta  enables one harmonic to be eliminated completely or two harmonics to be substantially reduced in magnitude. The use of additional pairs of GTO columns for each phase, each pair having a different stagger angle, offers scope for further reduction in the distortion of the a.c. supply due to harmonic current flow. <IMAGE>
Patent GB-2252793-A (GB)
Title: Rod less piston and cylinder unit
Inventor: MULLER LOTHAR
IPC: F15B15/28
Filed: 1992-01-14
Abstract: A rodless piston and cylinder unit has a piston (7) which is connected with an output drive part (16) by a traction element(s) (20) via pulley arrangements (21, 22) mounted on the ends of the cylinder (1). One of these pulley arrangements is in the form of a pulley (21) adapted to wind up a portion of the traction element thereon, and to pay it off, during movement of the piston. Since this portion (23) of the traction element is fixed to the pulley arrangement (21) by means (32) there is a slipfree connection between the piston (7) and the pulley (33), this rendering it possible to utilize the pulley for detection of the movement of the piston. <IMAGE>
Patent GB-2264535-A (GB)
Title: I.c.engine poppet valve gear.
Inventor: OLSFANGER BENZION
IPC: F01L1/12
Filed: 1992-01-23
Abstract: The outwardly opening poppet valve 2 is prevented from opening under the action of gas pressure by a piston 41 having a ramped portion 46 which acts against the end of the valve stem 2e. The piston is held in its operating position against spring 43 by the rocker arm 18b. The rocker arm 18b is operated by the push rod 49 to release the valve as the bifurcated limbs 18a, also operated by the push rod, urge the valve open. <IMAGE>
Patent GB-2260489-A (GB)
Title: Wind force responsive umbrella
Inventor: LIOU FU-TIEN
IPC: A45B25/22
Filed: 1992-02-03
Abstract: An umbrella closes to avoid wind damage when the inside surface of the open umbrella's cover is exposed to a gust of wind otherwise strong enough to turn it inside-out. The umbrella is of the topless rib system type wherein each stretcher rib (21) is connected to the runner (12) when the umbrella is open to extend beneath a horizontal plane i.e. at a downwardly directed acute angle ( alpha 2) with the umbrella's centerpost. A latch (14) mounted in the centerpost (1) has an edge profile (131) which does not engage the runner (12) on the centerpost when the underside of the umbrella's cover is exposed to substantially no wind force. As the wind pressure increases, the latch edge first restrains the runner in that position where the linkage system is held in the erected position, and then the latch edge cooperates with the runner so that the latch is depressed into the centerpost so that the runner can pass over it and the linkage system can collapse to a closed position, protected from wind damage.   <IMAGE>
Patent GB-2252537-A (GB)
Title: Cycle frame
Inventor: MARTIN PIERRE ABEL
IPC: B62K19/30
Filed: 1992-02-04
Abstract: The upper tube (2) is joined to the lower tube (3) by a frontal part (15) and to the rear stays (10) by a continuous sectioned connection part (14); the front fork pivot housing (4) is formed by a steering box (16) fitted by a nest fit (17) on the frontal part (15), and the seat post housing is defined by a seat tube (30) fitted, by a fork fit (31), on the continuous sectioned connection part (14). The invention is particularly applicable to racing cycle frames. The frame may either be a moulded construction of composite material or of metal member joined together. <IMAGE>
Patent GB-2254755-A (GB)
Title: Active device for pabx control
Inventor: LANE CHARLES HENRY RUBIE
IPC: H04M3/54
Filed: 1992-04-10
Abstract: A telecommunications system wherein a person carries a portable device, sometimes known as a "Dongle", which interacts with a control box connected to a telephone. When the control box detects the proximity of the dongle it activates features of the telecommunications system such as call forwarding, "follow-me" and call barring. This approach has the advantage that an appropriate active dongle could provide mobility features similar to a cordless PABX but using installed fixed wire telephones at low cost.
Patent GB-2268456-A (GB)
Title: Vehicle, eg wheelchair for a disabled person, with releasably coupled parts.
Inventor: GOULD ROYSTON MERVYN
IPC: A61G5/04
Filed: 1992-06-17
Abstract: The vehicle comprises front and rear parts (10, 11) releasably coupled to each other. They are locked in the coupled condition by means of a seat (20) which rests on a pivoted locking member (26). To uncouple the parts, the seat must be removed and the locking member then pivoted forwards. The vehicle may be propelled by motors (16) supplied by batteries in carriers (19) and controlled by handle (21).   <IMAGE>
Patent GB-2261406-A (GB)
Title: Multiple retractable printheads in a selective printer
Inventor: SUZUKI MITSUYUKI
IPC: B41J3/54
Filed: 1992-11-02
Abstract: A multiple head printing apparatus, comprising a plurality of printing heads. each arranged for movement between a printing and a remote position, wherein the printing positions are arranged for allowing the printing heads to print onto a substrate, moving in a feed direction, and the remote positions are arranged for allowing access to the printing heads. As shown (Fig 3) the print heads (1a, 1b, 1c, 1d) are in their operative positions. but may be withdrawn vertically by movement up respective slideways 10 of different respective heights. Thermal, laser, dot matrix impact and ink drop printheads are contemplated. For those printers that employ ribbons, the cassettes therefor (50a; 50b; 50c; 50d) are located at the tops of the slides 10, and the operative portions of the ribbons are drawn down in a bight with the printhead when it descends to its operating position. <IMAGE>
Patent GB-2265114-A (GB)
Title: Tamper-proof security seal with detent rotatable in housing
Inventor: SCHAEDE PETER
IPC: G09F3/03
Filed: 1993-02-17
Abstract: A security seal, of the kind intended to provide physical evidence of tampering, includes a hollow housing (3) containing a detent (2) comprising collar (10) and three flexible fingers (11), and a flexible strap (5) or bar (4) having one end connected to the housing (3). Abutment tooth (7) is provided on the other end of the strap (5) or bar (4) and is insertable through an opening (21) in the housing (3) to co-operate with the detent (2) and thereby form the seal into a closed loop. Cooperation between the abutment tooth (7) and the detent (2) is such that withdrawal of the abutment tooth (7) from the housing (3) is prevented. The detent (2) is formed separate from the housing (3) and is rotatably mounted in the housing (3). Step (16) and cap (10) serve to retain the detent (2) in the housing (3). The detent (2) may be formed of a harder plastics material than the main component (1) and may have a higher melting point. Ultrasonic welding may be used to secure cap (9). <IMAGE>
Patent GB-2268400-A (GB)
Title: A carpet layer/laying device with suction engaging mobile unit
Inventor: HERDAN RALPH
IPC: A47G27/04
Filed: 1993-06-22
Abstract: A carpet layer comprises an anchor unit (2), a mobile unit (4) and a drive system (8). The mobile unit (4) and suitably also the anchor unit (2) are secured to the carpet by suction provided by electrically driven exhaust fans. In use, the mobile unit (4) is driven by the drive system (8) away from the anchor unit (2) to smooth out or stretch the carpet, the friction between the carpet and the mobile unit being, by design, weaker than that between the carpet and the anchor unit. <IMAGE>
Patent GB-2281629-A (GB)
Title: Measuring distortion in ac networks
Inventor: FIELDEN JOHN SPENSLEY
IPC: G01R23/20
Filed: 1993-07-30
Abstract: Distortion in an AC network may be quantified by integrating over time one or more kth harmonics of current. This involves taking (1, 2, 4, 5) N samples of current phase-locked (7, 8, 5) to the associated voltage; applying reference sine (kx) and cosine (kx) waveforms to the sampled current waveform, with arbitrary phase between them, to produce orthogonal components of the kth harmonic component; squaring and adding the components to produce a value for the square of the kth harmonic of current; and integrating this value, or its square root, over time to provide the quantitative measure of distortion in the AC network. Similar techniques may be used to determine energy consumption, imbalance current in a three-phase, four-wire system having three sensing elements and third phase current in a three-phase three-wire system having two sensing elements. <IMAGE>
Patent GB-2283006-A (GB)
Title: A refuse sack with moisture absorbent lining
Inventor: LEWIS GAIL
IPC: B65F1/00
Filed: 1993-10-11
Abstract: A refuse receptacle comprises a flexible bag or sack which may be used as a liner for a waste bin having a closed lower end and an open upper end and a moisture absorbent lining 5 over at least part of its internal surface in the region of the closed lower end. The lining prevents liquid waste which is in the sack from leaking out of the lower end of the sack and staining a floor covering or soiling the interior of the waste bin. The lining may be paper or cotton; the sack may be plastics or paper. Where the sack is made of paper there may be a waterproof layer between the lining and the sack. <IMAGE>
Patent GB-2273202-A (GB)
Title: Field effect transistor
Inventor: NODA MINORU
IPC: H01L29/423
Filed: 1993-10-20
Abstract: The field effect transistor having an asymmetric gate 2 comprises a source region 4, a drain region 5 and a side wall 9a. The side wall acts as a mask during ion implantation to form the source and drain regions so that the drain region is separated from the gate 2. The transistor has a reduced short channel effect, reduced source resistance, improved transconductance and improved drain breakdown voltage. <IMAGE>
Patent GB-2283531-A (GB)
Title: Mobile computer mounting device
Inventor: HSU KUN TAI
IPC: E05D11/00
Filed: 1993-10-29
Abstract: A mobile computer includes a mainframe 1, a keyboard 2 supported on plate springs within a space inside the mainframe and detachably retained in place by slide fasteners, a display 4 alternatively set in either operative position according to the pen base or keyboard input mode selected, a connecting board 3 having one side hinged to the mainframe 1 and an opposite side hinged to the display 4, and locking devices mounted on symmetrical projecting blocks on the display to lock the display and the connecting board together. <IMAGE>
Patent GB-2272808-A (GB)
Title: Inverter and air conditioner driven by the inverter
Inventor: NAGAI KAZUNOBU
IPC: H02P6/08
Filed: 1993-11-17
Abstract: An inverter for controlling a brushless motor 15 includes a switching circuit 13 having switching elements 7 - 12 for energising windings 15u, 15v, 15w of the motor a PWM circuit 23 for obtaining a signal, energisation signal generating means, such as a microcomputer 31, determining commutation timing on the basis of information Vu, Vv, Vw about the rotational position of the motors rotor and some other quantity such as the inverter input current as detected by a shunt resistor 32, and drive means 24 for driving each switching element dependent on the energisation signal and the PWM signal. In a further aspect Figs 7, 15 and 16 the other quantity is speed. In a still further aspect Fig 7 the other quantity is the commutation time of each of the switching elements 7 - 12 of the inverter as determined by the energisation time periods of diodes D1 - D6. The commutation timing of the switching element is therefore compensated by the above methods of control. The brushless motor may be used to drive a compressor in an air conditioner (Fig 21). <IMAGE>
Patent GB-2273046-A (GB)
Title: Synergistic combination to improve secretion of endogenous growth hormone
Inventor: CHAN WANDA W-S
IPC: A61K38/25
Filed: 1993-11-24
Abstract: The combination of growth hormone releasing factor (GRF) and the synthetic molecule (I) L-692,429, a non-peptidal growth hormone secretagogue, is seen to synergistically increase the endogenous production of growth hormone by the pituitary gland. Compositions containing GRF and L-692,429 are also disclosed. <IMAGE>
Patent GB-2291748-A (GB)
Title: Connector with partly castellated coupling nut
Inventor: REED NORMAN
IPC: H01R13/625
Filed: 1994-07-23
Abstract: In a two part connector, in which the two parts are moved linearly into engagement and are then locked together by rotation of a coupling nut 16, the gripping portion of the coupling nut is discontinuous in the direction of rotation. The nut 16 has a knurled ring 16 and includes a series of projections 18, in the form of castellations, extending away from the coupling end of the connector part 15, such that a user is able to get their fingers in the circumferential space between the castellations to enhance the grip that a user can effect to urge the nut in the rotational direction. The castellations 18 are spaced from a boot adaptor assembly 19, 20 and a user may be able to get their fingers slightly under the castellations to enhance the turning effect. The connector may be electrical. <IMAGE>
Patent GB-2280816-A (GB)
Title: Facsimile transmission coding; number of lines transmitted
Inventor: KIMURA TOMOHIRO
IPC: H04N19/46
Filed: 1994-07-27
Abstract: In a facsimile system transmission of coded pixel data 42 is preceded by a header 41. The header contains a code H indicating the number of pixels per line in the transmission. A code V indicating the number of lines transmitted (counted by the transmitter) is contained in footer code 41b at the end of the coded pixel data after a terminate code 42z. A receiver is thus receives the number of pixels per line in the header code and the number of lines making up the transmission in the footer code. The receiver counts the number of lines received and compares this with the transmitted number of lines to control its operation. By coding the number of lines transmitted at the end of the pixel data the need for a page memory in the transmitter is obviated. <IMAGE>
Patent GB-2282494-A (GB)
Title: Plug for electric wire
Inventor: KOBAYSHI YASUTOMO
IPC: H01R4/50
Filed: 1994-09-19
Abstract: A plug for an electric wire includes a housing base 14; a terminal portion 22 provided on the housing base; a guide passage 56 provided on the housing base so as to guide the wire onto the terminal portion; a housing operating cover 18 capable of being opened and closed, so as to expose and cover the guide passage; and a pressing portion 150 formed on the operating cover and adapted to permit the introduction of the wire along the guide passage onto the terminal portion when the Operating cover is open and to press and hold the wire against the terminal portion when the operating cover is closed so as to establish electrical connection between the wire and the terminal portion. Hence, the attachment of the plug is accomplished easily and speedily in a one-touch operation. The operating cover 18 can open via the housing top 16 or base 14 (figure 18) and can incorporate cable clamping means 162. The wire 92 is clamped to the terminal 22 by a resilient terminal arm 50 or directly by the cover end 150 (figure 10), the terminal 22 overlying a cavity and/or further resilient means. <IMAGE>
Patent GB-2295330-A (GB)
Title: Filter/separator for IC engine fuel
Inventor: GAINES KELVIN JOHN
IPC: F02M37/22
Filed: 1994-11-26
Abstract: The device separates an entrained liquid from a carrier liquid (eg water from fuel) by gravity and includes a container 2 having an inlet 7 and outlet 12 with a collection chamber 6 below the physical level of the outlet. The inlet has a downpipe 8 arranged in a side chamber of the container with the outlet 9 arranged to direct the incoming liquid against a surface 10 such that its velocity is reduced whereby the entrained liquid settles out. A filter 13 may be provided for the outgoing carrier liquid. <IMAGE>
Patent GB-2295930-A (GB)
Title: Frequency hopping in a TDMA system
Inventor: HOWARD PAUL
IPC: H04B1/713
Filed: 1994-12-06
Abstract: A method for implementing frequency hopping in a time domain system having at least a first synthesiser 42 including the steps of locking onto a first frequency by the first synthesiser in wide loop bandwidth mode, transmitting from the first synthesiser, and converting to a narrow bandwidth mode on the first synthesiser after a delayed period of time. The apparatus includes two frequency synthesisers 42, 40 frequency hopping on a time slot by time slot basis. While one synthesiser e.g. 42 is in a narrow bandwidth and transmitting, the other synthesiser is disconnected and being tuned to the next frequency. Switch over between synthesisers and ramping up in power takes place in the guard band between the slots. Applications may be in TDMA based cellular systems. <IMAGE>
Patent GB-2285449-A (GB)
Title: Monoazo dye for thermal transfer printing
Inventor: LEE KI-TAEK
IPC: D06P5/13
Filed: 1994-12-23
Abstract: A new sublimable magenta monoazo dye for thermal transfer printing has a closed ring imido group in an aromatic azo compound. The dye can have the following formula:   <IMAGE>   The magenta monoazo dye achieves substantial improvements in stability, hue, gray and color development. In the above formula, R1 and R2 are each independently hydrogen, subst. or unsubst. C1-8alkyl, cycloalkyl, aryl, 2-cyanoalkyl, 2-hydroxyalkyl, 2-alkoxyalkyl or 2-acetoxyalkyl; A, B and C are each independently hydrogen, halogen, cyano, nitro, carboxyamino; trifluoromethyl, acetoxy, benzoxy, C1-4-alkoxy, C1-6 alkyl, alkyl- or aryl-sulphonamino, alkyl- or aryl-sulphonyl, alkyl- or aryl-carbonyl, C1-6-hydroxyalkyl, X is hydrogen, C1-4-alkyl, C1-4-alkoxy or halogen and Y is selected from a range of substituents carrying a phthalimido or succinimido moiety.
Patent GB-945742-A (GB)
Inventor: KILBY JACK S
IPC: H01L27/07
Abstract: 945,742. Semi-conductor devices. TEXAS INSTRUMENTS Inc. Feb. 2, 1960 [Feb. 6, 1959; Feb. 12, 1959], No. 27198/63. Divided out of 945,734. Heading H1K. The subject matter of this Specification is included in Specification 945,734 from which the present Specification is divided but the claims relate to a method of making a semiconductor device containing at least two different kinds of circuit element in which at least one region of each element is formed by diffusion of impurity into the same monocrystalline semi-conductor wafer. Specifications 945,737,945,738, 945,739,945,740,945,741, 945,743, 945,744, 945,745, 945,746, 945,747, 945,748 and 945,749 also are referred to.
Patent GB-2287137-A (GB)
Title: Guide for optic cables
Inventor: GARNETT JOHN GRAHAM
IPC: F16L3/26
Filed: 1995-01-11
Abstract: A cable guide for a bundle of optic fibre cables, consists of a number of stackable plastic quadrants, clamped together to form a number of channels. The quadrants have radial ribs 4, 5 to grip the cables and to provide stress relief. The cables are held in the channels by a restraint 6. <IMAGE>