baber/WOPTO huggingface dataset:
Patent GB-2240825-A (GB)
Title: Variable speed transmission system for bicycles including axially movable sprockets engageable with chain
Inventor: FURLONG PETER
IPC: B62M9/14
Filed: 1990-02-01
Abstract: A chain and sprocket variable speed drive transmission particularly for a bicycle, consists of a first set of coaxial sprockets (10, 11, 12) of different diameters provided on a first annular member (2) drivingly engaged with a shaft (4) and movable coaxially of the shaft (4), a second set of coaxial sprockets (8, 9) being of a diameter such that the member (3) and sprockets (8, 9) can be received with the member (2), a drive chain (7) which is restrained from transverse movement by a sprocket (13) rotatably mounted on a pivoted arm (15), and means (not shown) for moving the members (2, 3) along the shaft (4) so as to engage a selected one of the sprockets (8, 9, 10, 11, 12) with the chain (7). Thus the chain (7) is always aligned with the selected sprocket (8, 9, 10, 11, 12) which is engaged with it. <IMAGE>
Patent GB-2230064-A (GB)
Title: Sealing external rearview mirror assembly
Inventor: VALDE GIUSEPPE
IPC: B60R1/06
Filed: 1990-03-20
Abstract: A beaker-shaped, airtight joining element (31) between an external container (7) and a supporting element (3) with a non-circular cross-section, of an external rearview mirror assembly (1) for a vehicle, comprising a first airtight compartment (70) around said supporting element (3), and a second cylindrical part (71) housed in the container (7) and having a circular cross-section coaxial to the rotational axis (A) of container (7) with respect to supporting element (3). <IMAGE>
Patent GB-2243203-A (GB)
Title: Phase change mechanism
Inventor: MA THOMAS TSOI-HEI
IPC: F01L1/344
Filed: 1990-04-18
Abstract: A phase change mechanism for a camshaft of an internal combustion engine is described which comprises, a drive member 314 to be connected to the camshaft drive, a driven member 330 to be connected to the camshaft; and a coupling element 420 movable generally radially between two end position relative to the drive and driven members. Means are provided for connecting the coupling element 420 to the drive and driven members in such a manner that the relative phase of the driven member and the drive member varies with the position of the coupling element. The connecting means comprise a single resilient curved element 400 connected at one end to the drive member, at the other end to the driven member and at a point 410 between its ends to the coupling element 420. <IMAGE>
Patent GB-2233775-A (GB)
Title: Camera with battery and condenser
Inventor: NAKAMURA TAKAYA
IPC: G03B7/26
Filed: 1990-06-20
Abstract: A camera having a battery 1 which has a recess 1a on one side face thereof and a condenser 2, wherein the condenser is closely opposed to the recess of the battery. As shown, the camera also includes a grip portion 4 and a film spool 7. <IMAGE>
Patent GB-2248366-A (GB)
Title: Active noise filter
Inventor: CONNOR DR FRANK ROBERT
IPC: H03H11/04
Filed: 1990-08-08
Abstract: An active noise filter circuit designed to operate between the final intermediate frequency stage and the demodulator stage of a radio communication receiver comprises a downconverter 1 for imposing frequency and phase information on the input signal, an upconverter 2 for providing an output signal at the intermediate frequency, a downconverter 4 for removing frequency or phase shifts due to the digital data transmitted and a feedback loop 4, 7, 6, 5, 3 for removing phase noise from the input signal. <IMAGE>
Patent GB-2253182-A (GB)
Title: Transfer moulding device for encapsulating electronic components
Inventor: SCHRAVEN JOSEPHUS JOHANNES MAR
IPC: B65B19/02
Filed: 1991-05-08
Abstract: A device (1) for simultaneously encapsulating a number of electronic components comprises a number of plungers (17) for operating upon pellets (C) of synthetic resin to force the resin to flow into moulds (9). The plungers (17) are operated by levers (25) which levers are either operated independently of each other by springs (29) or in unison with displacement of a frame (21) by a locking bar (49). In a first mould cavity filling phase of operation the plungers are moved in unison at a high controlled speed and in a second curing phase of the material in the cavities, the plungers are disconnected from the frame (21) by the locking bar, and are stationary and loaded by the springs (29). Encapsulation may be performed more quickly and the likelihood of damage to sensitive components is reduced. <IMAGE>
Patent GB-2243866-A (GB)
Title: Lock assembly
Inventor: BAYES SIDNEY
IPC: E05B67/06
Filed: 1991-05-09
Abstract: The lock assembly has a lock body 10 and a bar 44 rotatably mounted in the lock body 12 and operable by a key operated lock mechanism 22. The bar 44 has curved recesses 54, and 56 therein which are disposed in recesses in the lock body 10 which are adapted to receive the respective legs of a shackle 12. The legs of the shackle 12 have respective grooves 64 and 66 therein which cooperate with the recesses 54 and 56 to lock or unlock the shackle depending upon the rotary position of the bar 44. The lock body 10 includes core members 16, 18 in a shell 14 - details of materials are given. The shackle 12 may have one or more sets of grooves to allow it to be locked into any one of a number of positions relative to the lock body 10. In the padlock of Figures 4. 5 the shackle (112) is not designed to be separated from the lock body (110) and a sleeve (170) is disposed within a shell (114) in the lock body. <IMAGE>
Patent GB-2246634-A (GB)
Title: Real-time electrical impedance tomography
Inventor: BROWN BRIAN HILTON
IPC: A61B5/05
Filed: 1991-06-10
Abstract: A method of, and apparatus for, real-time imaging are described employing a plurality of contact electrodes (1) located for example around the thorax (2) with simultaneous measurement of voltage differences at adjacent pairs of electrodes (1), digital demodulation of the voltages, and measurement and division of the drive current into the voltage measurements before image reconstruction by the use of transputers (20, 22, 24 and 26).
Patent GB-2260165-A (GB)
Title: I.c. engine fuel injector
Inventor: GASKELL DAVID JOHN
IPC: F02M65/00
Filed: 1991-10-01
Abstract: The opening movement of the fuel pressure operated valve member produces a pressure rise in a space 26 which is in part defined by the valve member. A transducer 25 is provided which is responsive to the pressure in the space and this provides a signal upon opening movement of the valve member, the signal being utilised in an engine control system. <IMAGE>
Patent GB-2249944-A (GB)
Title: A shelf support system
Inventor: DE GRUTTIS COSTANZO
IPC: A47B57/56
Filed: 1991-11-26
Abstract: A shelf support system comprises a shelf support arm (1) adapted to be mounted horizontally and a support bar (5) adapted to be disposed vertically and means for mounting the support bar (5) to a vertical wall or other support surface, sliding means enabling the arm (1) to slide up and down the bar (5) and retaining means to secure the arm (1) to the bar (5) at any desired position. The retaining means include a resiliently expandable member (6) held by the arm (1) so as to be frictionally engageable with the bar (5) by operation of actuating means (9, 10) to expand the member (6) towards the bar (5).   <IMAGE>
Patent GB-2266932-A (GB)
Title: Magnetically reciprocating compressor
Inventor: HU SHIH-CHE
IPC: H02K33/18
Filed: 1992-05-06
Abstract: A magnetically reciprocating compressor for coolant comprises a piston 3 with an electro-magnetic coil 31 arranged to cc-operate with a permanent magnet 27 held in an inner cylinder 24. The inner cylinder comprises two caps 24, 23 closing both ends and is enclosed by an outer cylinder 13. A chamber is formed between the outer cylinder and the inner cylinder for coolant to flow to cool the inner chamber. The piston includes a hollow rod 32 with an inlet valve fixed on its end. The valve is closed to compress the coolant in a compression volume (205, Fig. 3) when the piston performs its compression stroke. A cylinder 230 with a longitudinal slot is fitted in the compression volume and receives a delivery valve disc 235 loaded by a spring 234. The slot provides a flow path for coolant to a chamber 232 from which an exit tube 108, 104 is connected. A passage in a gasket 25 connects the slot to the chamber. <IMAGE>
Patent GB-2266921-A (GB)
Title: An automatic door opening system.
Inventor: ONANDIA ALBERDI CARMELO
IPC: E05F15/16
Filed: 1992-05-15
Abstract: An automatic opening system for doors for loading and unloading pallets containing articles, e.g. in electro-erosion machining stations, characterised in that a vessel or tank has at least one side wall in the form of a door (21), with means for guided linear motion thereof so as to open and close it relative to the rest of the vessel and means for hermetically locking it in the closed position. The locking is effected by a set of hydraulic cylinders which press the door and seal it against pressure joints around the vessel opening. The drive is effected by a motor through chains or rack and pin ion. <IMAGE>
Patent GB-2271737-A (GB)
Title: Manufacture of annular articles
Inventor: GILLBANKS PETER JOHN
IPC: B23K20/12
Filed: 1992-10-23
Abstract: Ring-like articles are made by depositing a coating 4 of metal upon the surface of a rotatable mandrel 1 by means of a rapidly rotating bar 3 of consumable material and continuing the rotation of the mandrel and bar until a coating of the required thickness has been deposited. The mandrel and coating are then separated. A grinding wheel may be used to skim the surface of the coating to prepare that surface for the addition of further coating material. <IMAGE>
Patent GB-928646-A (GB)
Abstract: 928,646. Knitting. P. VORSTEHER, and W. VORSTEHER, [trading as BRUDER VORSTEHER]. Sept. 25, 1959 [Sept. 27, 1958; Sept. 2, 1959], No. 32618/59. Class 74 (2). A warp knitted fabric is formed of ground yarns 1, laid in elastic warp yarns 2 and laid in yarns 3 extending over several needles in each course.
Patent GB-2274244-A (GB)
Title: Portable chiropody footstool
Inventor: BYRON MARK HOWARD
IPC: A61B19/00
Filed: 1993-01-14
Abstract: A footstool eg. a chiropody footstool has a fixed seat (12) for the operator and an adjustable height footrest (10) which is secured and released by a clamp (11) which slides into the footrest ground member stand (13). The seat and footrest are secured together by a hinged chassis (14) making it fully portable when folded. <IMAGE>
Patent GB-2276230-A (GB)
Title: Heat pump system utilising the latent heat of fusion of an ice-water reservoir as a buffer energy source
Inventor: GUNDLACH ROBERT WILLIAM
IPC: F25C1/08
Filed: 1993-03-17
Abstract: There is disclosed a heat pump wherein the evaporator 16 extracts heat from a low temperature heat exchanger in the form of water-immiscible fluid F, for example kerosene and transfers the extracted heat to the condenser 13 of the heat pump. The water-immiscible fluid is maintained at a temperature of virtually 0 DEG C by the injection of many small droplets of water that freeze to form beads of ice as they settle in the fluid. The settled beads of ice float on water below the fluid and can then be separated and delivered to a combined ice-water reservoir (25, Fig. 3). The heat extracted from the water-immiscible fluid and the injected water droplets is replaced in the ice-water reservoir from natural heat sources, by means such as a ground loop (41), a solar panel (50, Fig. 4) or an air-water heat exchanger (60, Fig. 5). The heat provided by the ice-water reservoir includes its latent heat of fusion, which acts as a buffer when heat demand exceeds the rate of heat available from natural sources. <IMAGE>
Patent GB-2267155-A (GB)
Title: System and method for tolerating dynamic circuit decay
Inventor: HEIKES CRAIG
IPC: H03K19/096
Filed: 1993-03-22
Abstract: A system tolerates the decay of a dynamic logic circuit (12) by preserving the logic state of the output (18) before the decay. A slow clock detector (22) detects a slow clock condition of the clock (14) fire-charging the dynamic logic circuit (12), and a tolerant storage device (24) preserves the data output (18) by command (26) of the slow clock detector (22) upon a detection of the slow clock condition. With the data thus stored, the dynamic logic circuit may be tested at a slow clock, or DC, clock-rate. <IMAGE>
Patent GB-2271818-A (GB)
Title: Radial and thrust bearing for electric motor
Inventor: SAKASHITA HIROSHI
IPC: H02K5/173
Filed: 1993-10-08
Abstract: A bearing device includes a rotatable shaft (1); rotatably supported by a bearing ring (14) of a first bearing (13). The bearing ring (14) is in running contact with a plurality of rolling bodies (13B) which are retained by the bearing ring (14). A second bearing (12) is provided in which the shaft (11) is rotatably mounted. The second bearing (12) has a flange member (11) which is also in running contact with the plurality of rolling bodies (13B). The flange member (11) is integrally formed with the second bearing and is disposed on the opposite side of the ring (14) in an axial direction of the shaft (1). Bearing 12 may also be provided with an angular alignment seat, and may be made from an oil impregnated, sintered material. <IMAGE>
Patent GB-2283128-A (GB)
Title: A memory device incorporating a quantum dot array
Inventor: ALPHENAAR BRUCE
IPC: G11C16/02
Filed: 1993-10-21
Abstract: A memory device comprises a source (15), a drain (16) coupled to a 2DEG region (13) in a substrate (10) and a gate (5) that includes an array of dot regions (3, 4) each capable of holding a quantised amount of electric charge. A photoconductive region (12) adjacent the array is responsive to incoming radiation to produce charge carriers for establishing a stored charge associated with each dot region. In a write mode, the gate is held at a write voltage Vw to set a charge on the dots and incoming radiation produces a stored charge pattern in the photosensitive region according to the charge of the dots. The level of stored charge is read by detecting peaks in the source-drain current which occur as the gate voltage is swept through a value corresponding to Vw. <IMAGE>
Patent GB-2283220-A (GB)
Title: Anti-sway towing stabiliser
Inventor: BEDDOWS PETER MAURICE
IPC: B60D1/32
Filed: 1993-10-28
Abstract: The stabiliser 101 comprises a flexible tie 2 that is connected between a first support on the towing vehicle V, and a second support W, 110 on the towed vehicle. One of the mounting points 110 may be movable to apply or maintain tension in the flexible tie during braking of the vehicles, particularly in combination with a towed vehicle having an overrun braking system. Also, the first support may be provided by a pair of mounting points H3, H4 which are provided remote from the coupling portion and centre axis of the vehicles. The flexible tie is preferably a cable or belt, and the stabilisation effect if preferably provided by applying friction D, D1 or damping means to the flexible tie. This may be achieved by providing damped or braked pulleys at the pair of mounting points providing the first support. The friction means may be operated by a driver in the towing vehicle. Also, the flexible tie may be arranged in the form of a triangle, with the base arranged across the width of the towing vehicle, and the perpendicular height being equal to or less than the base. <IMAGE>
Patent GB-2285724-A (GB)
Title: Selecting a channel in a TDMA system according to a variable threshold value
Inventor: WHINNETT NICHOLAS WILLIAM
IPC: H04B7/26
Filed: 1994-01-18
Abstract: In a TDMA communications system where mobile stations communicate directly with each other without the help of a base station or system controller a mobile periodically samples the signal level 56 on each available channel. The samples are used to plot a cumulative probability distribution of carrier - Interference ratio 58 and to select a threshold value 59. To set-up a call a channel is selected and compared with the threshold value. If no channels offer a C/I greater than the threshold then the channel which meets the criterion for the longest time is selected 72. Alternatively, BER may be measured. <IMAGE>
Patent GB-2286584-A (GB)
Title: Closure with straw
Inventor: OLDBURY ANDREW LAURENCE
IPC: B65D47/06
Filed: 1994-02-19
Abstract: A straw-type drink dispenser comprises an apertured closure (10) adapted to be snap-fitted over a top rim of a standard can, and straw-forming means comprising upper (38) and lower (40) parts passing through the aperture and being interconnected at or adjacent to the closure (10), both parts being separable from the closure (10). The snap-fitting means may comprise a plurality of circumferentially-spaced fingers (14) which project in a circular array downwards from the closure (10), the fingers (14) having bulbous free-end portions. The assembled can and closure may be hung from the neck of the user by means of a cord secured to a cord-retaining collar element (32) of the closure. The aperture may be located off-centre in the closure (10). The closure (10) is rotable relative to the cord-attaching element (32) to enable the aperture to be positioned either adjacent to the cord-attaching element or more displaced from it. Two different straw forms are provided for the two different aperture locations. The closure may include an infill disc 36 and a vent hole. <IMAGE>
Patent GB-2287592-A (GB)
Title: Phase lock detector
Inventor: MUDD MARK STEPHEN JOHN
IPC: H03L7/095
Filed: 1994-03-18
Abstract: A phase lock detector for a digital phase locked loop frequency synthesiser in which phase errors, represented by phase error pulses of a duration equal to the relative time displacement of synthesised and reference waveforms in the phase locked loop, are compared with a predetermined time interval representing the maximum phase error acceptable in a phase-lock condition. A favourable result of the comparison may be required to persist for a predetermined time before a phase-lock indication is given, to avoid jitter or flicker of that indication in a near-lock situation. <IMAGE>
Patent GB-2288190-A (GB)
Title: Cleaning composition containing hydrochloric acid
Inventor: HUNT IAN MATTHEW
IPC: C23G1/12
Filed: 1994-04-08
Abstract: A cleaning composition for metals other than chrome comprises dilute hydrochloric acid, preferably in a quantity of less than 5% by volume. The preferred composition also contains less than 0.2% by volume of a detergent, less than 0.07% phosphoric acid and a trace of ammonia. The preferred method of applying such a composition to a vehicle wheel is by a brush which is used to agitate the composition in the course of application. After leaving the composition on the wheel for at least one minute, it is washed off with water.
Patent GB-2278153-A (GB)
Title: Modular safe deposit box assembly
Inventor: ELSESER JOHN WILLIAM
IPC: E05G1/08
Filed: 1994-04-08
Abstract: A modular safe deposit box assembly comprises an open fronted housing having a top wall (60), a bottom wall (70) and unitarilly formed back (22, Fig. 3) and spaced apart side walls (24, 26). Each of the side walls having at least one ridge (34) extending internally along its inner face. At least one vertical partition (80, 82) is disposed between and parallel to the side walls and has at least one corrugation (86, Fig. 3) formed thereon with a ridge (88, Fig. 3) projecting from either side. A plurality of spaced-apart slots (90, Fig. 3) parallel to the top and bottom walls are formed in the ridges. A plurality of horizontal shelves (100, 102, 104) are provided having lateral edges dimensioned to be received in the slots to define compartments within the housing to receive safe deposit boxes. A door frame (14) having a plurality of locking doors (220) equal to the number of compartments is fixedly connectable to the open front of the housing. <IMAGE>
Patent GB-2280052-A (GB)
Title: Logarithmic amplifying circuit
Inventor: KIMURA KATSUJI
IPC: H03G11/08
Filed: 1994-07-12
Abstract: A logarithmic amplifying circuit with a reduced power dissipation and suitable for applying to an integrated circuit has cascade-connected differential amplifiers A1-An, a rectifier 41-4n+1 connected to each of the amplifiers and an adder 3 for adding the output currents of the rectifiers. Each of the rectifiers 4i has a differential pair composed of a plurality of transistors M1i, M2i emitter-coupled or source-coupled, a constant current source Ioi for a tail current of the differential pair and an offset voltage source Vosi for superimposing a DC offset voltage on a differential input voltage VIN to be supplied to the differential pair. <IMAGE>
Patent GB-2283567-A (GB)
Title: Fibre optic sensor device
Inventor: BADCOCK R A
IPC: G01D5/26
Filed: 1994-10-28
Abstract: An optical fibre is cleaved to provide facing fibre ends which are fixed in a housing to form a sensor where any change in the spacing between the fibre ends then alters the amount of light transmitted through the abutting sections of fibre. A vibration sensor is provided by having one or both of the fibre ends spaced from the bore of the housing so as to be movable in a direction perpendicular to the axis of the bore when the housing is vibrated. The sensor can be placed in a material to be cured such that the material flows into the space between the fibre ends via an aperture in the housing. The degree of curing is sensed by detecting the change in refractive index of the curing material. Other embodiments are described that sense tensile stress and temperature. <IMAGE>
Patent GB-2296239-A (GB)
Title: Taxane derivatives modified at 6 and 7 positions for use as antitumour agents
Inventor: MENICHINCHERI MARIA
IPC: C07D491/08
Filed: 1994-12-21
Abstract: Taxane derivatives which are modified at the 6 and 7 positions of the taxane derivative skeleton (taxol numbering) and are of formula I:   <IMAGE> [wherein R3 represents hydrogen atom, hydroxy group or a group of formula -OCOR', -OR', -OSO2R', -OCONR'R", -OCONHR', or OCOOR'; R4 is -COR''' or -COOR'''; R', R" and R''' each independently represents C1-C6 alkyl, C2-C6 alkenyl, C3-C6 cycloalkyl, C2-C6 alkynyl of a phenyl group (optionally substituted with one, two or three, same or different substituents selected from halogen atom, C1-C6 alkyl, C1-C6 alkoxy, and CF3 groups); and either:   (i) R1 together with R2 represents an oxygen atom or a group of the formula >N-Z or >CH-Z or (ii) R1 represents a hydroxy group and R2 represents a hydrogen atom, azido group or a group of formula NR5R6 or (iii) R1 represents an azido group or a group of formula NR5R6 and R2 represents a hydroxy group, wherein Z is a hydrogen atom, carboxy or a C1-C6 alkoxycarbonyl group and R5 and R6 each independently represents a hydrogen atom or a C1-C6 alkyl, C1-C8 alkanoyl or C7-C11 aroyl group] and pharmceutically acceptable salts thereof are allowed with antitumor activity.
Patent GB-2286986-A (GB)
Title: Isolator and method of operating it
Inventor: WATLING DAVID
IPC: B25J21/02
Filed: 1994-12-30
Abstract: An isolator is provided having an inner wall 7 defining an inner chamber 6, outer wall 5 defining an outer chamber 4 which surrounds said inner chamber, and means for maintaining the outer chamber at a pressure which is less than both the pressure in the inner chamber and the pressure of the atmospheric air outside the outer chamber. Toxic materials may be processed in the inner chamber with much reduced risk of contaminating the environment outside the isolator. <IMAGE>