baber/WOPTO huggingface dataset:
Patent GB-2267791-A (GB)
Title: Frequency divider
Inventor: YAMAMOTO KAZUYA
IPC: H03L7/183
Filed: 1992-12-09
Abstract: A frequency divider comprises an input stage for receiving an input signal, a divider stage (not shown) for dividing the input signal from the input stage, and an amplitude limiting circuit included in the input stage. The amplitude limiting circuit limits a voltage amplitude of the signal input to the divider stage in a prescribed frequency region within an operating frequency region of the divider stage. Therefore, an input sensitivity of the divider circuit is improved. The amplitude limiting circuit may include an analog filter or a diode limiter. The filter may be a notch filter or a low pass filter. The divider may include an emitter coupled logic circuit or a source coupled FET circuit and form a presealer in a frequency synthesiser. <IMAGE>
Patent GB-2275615-A (GB)
Title: Apparatus for administration of drugs
Inventor: CLOWERY GORDON P
IPC: A61M15/00
Filed: 1993-03-05
Abstract: In apparatus for administration of a drug by inhalation the improvement comprises incorporation of an expansion chamber 4 between a drug supply device 10 and a mouthpiece 11 to slow down the rate of administration of the drug to the patient, said expansion chamber 4 comprising a section of corrugated tubing 13 that can be collapsed in an axial direction of the tubing from an extended drug inhalation position to a collapsed storage position. The drug supply device may be, for example, a hand held inhaler or a dose metering device incorporated in a breathing circuit or a ventilator circuit. <IMAGE>
Patent GB-2267608-A (GB)
Title: An electrical connector as well as an electrical connection device comprising at least one such connector
Inventor: DROGO PIERRE
IPC: H01R13/18
Filed: 1993-05-20
Abstract: In each electrical connector the pin (5) of the male contact element (1) and the axial receiving bore (11) of the pin (5) made within one socket (10) of the female contact element (2) are frusto-conical and of the same conicity so that the force for inserting the pin (5) into the axial bore (11) be nearly zero, the invention being applicable in the field of aeronautical engineering. The socket (10) can be split and surrounded by a spring. When mounted in a connection device, shoulders (7, 13) of the contacts bear on resilient members to absorb misalignment along the axis of plural contacts. <IMAGE>
Patent GB-2282422-A (GB)
Title: Closure especially for a pressure vessel and seal therefor
Inventor: SMITH BRIAN
IPC: F16J13/18
Filed: 1993-09-29
Abstract: A seal for a pressure vessel comprises first and second walls (20, 21) integrally attached to each other and to first and second flanges (22, 23), the walls and flanges forming a hollow elongate extrusion (14), suitably of a high pressure elastomer, which has a mouth (27) formed by the flanges. When placed under pressure, i.e. when the pressure vessel is closed and pressurised, the seal deforms such that the flanges (22, 23) make total sealing Contact with the pressure vessel and the closure. In a preferred embodiment the seal has an annular reinforcing spring (24) embedded in it, the reinforcing spring bridging the gap between the closure and the pressure vessel when the vessel is pressurised and the seal deformed. <IMAGE>
Patent GB-2271456-A (GB)
Title: Document validator
Inventor: MARSHALL BRIAN DENNIS
IPC: G07D7/00
Filed: 1993-10-06
Abstract: Apparatus for identifying counterfeit documents comprises a source of ultra-violet light (5) arranged to illuminate one surface of the document (2) and a source of visible light (4) arranged to illuminate the opposite surface of the document (2). The document (2) is supported on a transparent or translucent plate (1) and is viewed (arrow A) so as to observe simultaneously light passing through the document from the source (4) and any fluorescence produced by the ultra-violet source (5). <IMAGE>
Patent GB-2275318-A (GB)
Title: Gear elements having resilient teeth
Inventor: YANG TAI-HER
IPC: F16H55/16
Filed: 1994-02-09
Abstract: A gear element 100 having resilient teeth is provided to reduce backlash and tooth noise, the resiliency being provided by a series of slots 101 extending inwardly from the base region between adjacent teeth. The slots may be filled with a resilient material (201 Fig 2 not shown). The gear element may take the form of a spur or pinion gear, a rack gear (Fig 3), an internal ring gear (Fig 4), a roller worm gear (Fig 5), a bevel gear (Fig 6), a worm wheel (Fig 7), or be one of a pair of inter-fitting coupling elements (Figs 8 and 9). <IMAGE>
Patent GB-2279301-A (GB)
Title: Print head positioning
Inventor: HIRANO TAKAHISA
IPC: B41J11/20
Filed: 1994-06-24
Abstract: The spacing between the print head 5 and the paper 7 is greater for thinner paper to avoid damage to the thinner paper. In one embodiment a motor 11 is operated to move the print head 5 further from the platen 1 when the movement of carrier 4 towards the platen to bring the sheet holder 6 into an abutment with paper 7 indicates a head platen spacing less than a predetermined minimum. In another embodiment (Figs. 3 and 4), a paper detector (17) provides for greater print head spacing for thinner paper. In a further embodiment (Fig. 7), a stop (22) associated with the platen determines a minimum spacing of the print head and platen. <IMAGE>
Patent GB-2279886-A (GB)
Title: Head shaking mechanism
Inventor: NAGASAKA YOSHIZO
IPC: A63H29/22
Filed: 1994-07-13
Abstract: A head shaking mechanism 9 comprising a supporting shaft 12 which is secured in the torso of a doll 1 at its proximal end and enters the head 4 of the doll 1 which is configured separately from the torso at its distal end. The distal end of the supporting shaft 12 is formed substantially as a spire. A bearing member 15, disposed in the head 4, has a substantially cone-shaped hole 15a for receiving the distal end of the supporting shaft 12. A guide member 13 is provided at the distal end of the supporting shaft 12 for guiding the rocking motion of the head 4. Additionally, a sliding member 10, slidable relative to the guide member when the head 4 rocks, is securely provided in the vicinity of the guide member 13 in the head 4 for cushioning an impact or bending stress produced at the contact portion between the bearing member 15 and the supporting shaft 12. This head shaking mechanism 9 allows subtle head shaking actions through natural motions, which closely mimic those of an actual baby. Suitably the doll is provided with an operating member, such as an arm (8) or a pacifier (3, Fig. 4) that can closely approach and distance itself from the head. Preferably, both operating member and head are provided with magnets so that when they closely approach, magnetic forces induce movement of the head. The doll may include a sound generator in its torso. <IMAGE>
Patent GB-2286047-A (GB)
Title: Extensometer and support for an extensometer
Inventor: BACHMANN VOLKER
IPC: G01B7/16
Filed: 1994-11-07
Abstract: An extensometer comprises a basic body (18) that carries two tap legs (12) which abut a specimen (16) on which measurements are to be performed and legs 12 become frictionally locked thereto. Due to the frictional contact legs (12) move relative to each other when the specimen is subject to external forces. Movement of legs (12) is detected via a signal transmitter (24). The extensometer (10) is floatingly supported by introducing gas in a clearance between a baffle body (36) which is connected to extensometer (10) and a stationary support member (28), such that gas flows against baffle body (36). A gas cushion is built up in the clearance which presses extensometer (10) and its tap legs (12) against specimen (16) so as to become frictionally locked thereto whilst allowing pivoting of extensometer (10) corresponding to the movement of the measurement points. The extensometer 10 is pneumatically-, hydraulically- or magnetically-floatingly supported. The transmitter may comprise an electromechanical or inductive transformer. <IMAGE>
Patent GB-2286143-A (GB)
Title: Semi-automatic wire-threading device for electroerosion machines
Inventor: ONANDIA ALBIZURI JOSE MARIA
IPC: B23H7/10
Filed: 1995-01-30
Abstract: A semi-automatic wire threading device for electroerosion machines, has a main wire traction wheel (7) in the lower head (4) placed immediately below the piece to be machined (5). The traction wheel is followed by a first guide funnel (27) that discharges into a second funnel (28) whose outlet has a funnelled shape projecting into an enclosure (29) with a compressed air inlet (31) and facing the inlet of an outlet guide tube (32). At the outlet of the guide tube (32), are two wheels, one an auxiliary traction wheel and the other a free wheel. <IMAGE>
Patent GB-2288067-A (GB)
Title: Removing oxide films during semiconductor device fabrication
Inventor: KIZUKI HIROTAKA
IPC: H01L29/205
Filed: 1995-03-24
Abstract: In fabricating a semiconductor device, a semiconductor layer containing Al and a cap layer not containing Al are successively grown on a semiconductor substrate and are placed in a halogen gas environment where a chemical reaction between a halogen and an oxide film naturally formed on the cap layer removes the oxide film. Then, without exposing the layer to the atmosphere, the halogen gas environment is replaced with a dry-etching environment and the cap layer is dry-etched to a desired depth. Then, without exposing a semiconductor layer to the atmosphere, the dry-etching environment is replaced with a crystal growth environment. Subsequently, another semiconductor layer is grown on the semiconductor layer. A regrowth interface of excellent cleanliness is realized and the crystallinity of the regrown semiconductor layer is improved.
Patent GB-2293929-A (GB)
Title: Microchip fuse
Inventor: ARIKAWA HIROO
IPC: H01H85/143
Filed: 1995-06-01
Abstract: A microchip fuse includes a casing 1 constructed from box-like upper and lower members 2, 3. On the end surfaces of both members, electrode sections (14, Fig 2B) are formed by plating metal onto a sintered conductive paste. A fusible element 17 extends through an inner space 10 within the casing. End portions of the fusible element are soldered to the electrode sections. A hollow portion 13 is provided in the casing adjacent to the inner space by way of a thin wall 11 to dampen the pressure of gas generated during the interruption process. Electrical insulating material 16 may be provided in grooves 6 in the casing walls around the fusible element and in hollow portion 13 to dampen the gas pressure. <IMAGE>
Patent GB-2292458-A (GB)
Title: Ultrasound imaging method and apparatus with dynamic non-linear filtering
Inventor: HEDBERG DAVID
IPC: A61B8/14
Filed: 1994-05-05
Abstract: Method and apparatus for enhancing the clarity of diagnostic information in real-time B-mode and M-mode ultrasound displays including a beamformer (1) for acquiring ultrasound signals, a signal processor for processing the ultrasound signal with programmable dynamically variable non-linear filters (4, 7), and a display (9) for viewing the ultrasound signals. The non-linear filters (4, 7) may process video signals in range along each ultrasound scan line or azimuthally along multiple ultrasound scan lines of a two-dimensional B-mode image. The non-linear filters (4, 7) also can be two-dimensionally programmable for processing video signals both in range along each ultrasound scan line and azimuthally along multiple ultrasound scan lines over regions of a two-dimensional B-mode image. The non-linear filter (4, 7) may be responsive to a local signal measurement and to spatial positions in a B-mode image for control of filter parameters. The non-linear filter (4, 7) can also be programmable to accommodate variable system characteristics for particular imaging applications. <IMAGE>
Patent GB-2295459-A (GB)
Title: Alternating current sensor
Inventor: BERKCAN ERTUGRUL NMN
IPC: G01R1/20
Filed: 1995-11-03
Abstract: An alternating current sensor includes a conductive pipe and a cylindrical-shaped conductive element preferably partially surrounded by the pipe. The pipe is substantially concentric to the conductive element and a conductor electrically connects a pair of corresponding ends of the pipe and conductive element to form a connected conductive path through the sensor. The pipe and the conductive element are spaced apart a predetermined radial distance to form a magnetic field in the space between the pipe and the conductive element during current flow along the connected conductive path. A flux sensor, such as an air-core coil, senses changes in magnetic flux over a sense region situated in the space between the pipe and the conductive element. A transformer having a saturable magnetic core is responsive to a magnetic field over a transformer region for generating a predetermined level of electrical current which can be used for safely powering various electrical circuits associated with the current sensor. <IMAGE>
Patent GB-2297802-A (GB)
Title: Double cylinder lock
Inventor: PALMER DENNIS RAYMOND
IPC: E05B9/10
Filed: 1996-02-12
Abstract: A security cylinder lock assembly (40) comprises a lock housing (50), first and second axially spaced pin tumblers guided in the housing, first (42) and second (46) lock cylinders in the housing, said first lock cylinder having a peripheral opening to receive said first tumbler, said second lock cylinder having a peripheral opening to receive said second pin tumbler, the first lock cylinder having an axial key hole for receiving a first key (44), the second lock cylinder having an axial key hole for receiving a second key (48), said first and second keys when in their fully home condition in the respective key hole moving a tumbler out of the respective opening to permit rotation of the cylinder relative to the housing. The keys are able simultaneously to move a respective tumbler, and each key is removable from its respective key hole, the digit grip of the second key (64) being larger than the digit grip of the first key (66).
Patent GB-2310544-A (GB)
Title: Method of forming a rotor for a reluctance machine
Inventor: MCCLELLAND MICHAEL LEO
IPC: H02K15/02
Filed: 1996-02-21
Abstract: A reluctance motor rotor 270 is formed by sandwiching a stack of thin ferromagnetic laminations between two end caps 200,220. Each lamination has a series of slots 140,160 formed in it, with the ferromagnetic material between these slots providing a flux guide 150. A rib 110 is formed around the periphery of each lamination, thereby enclosing the slots 140,160. The slots are then filled with an epoxy resin 230 through holes 210 in the end cap 200. The resin 230, which is initially in the liquid state, is then cured in an oven. Once the resin is hard, the outer rib 110 can be machined off to expose the resin. A rotor formed in this manner exhibits significantly higher output than prior art rotors of similar dimensions using magnetic bridges, and is relatively cheap to produce.
Patent GB-2312413-A (GB)
Title: A dumper truck bucket
Inventor: PINDER MARRIOTT PAUL
IPC: B60N2/24
Filed: 1996-04-26
Abstract: A dumper truck bucket 12 mounted for both pivotal and substantially vertical movement, having first actuating means 14 for pivoting and second actuating means 15 for vertical movement. The actuating means 14 and 15 and the means by which the bucket 12 is mounted on the chassis 11, preferably in the form of a pair of arms 13, extend to the bucket sides, the arm ends being pivotally connected to the bucket 12 and chassis 11. Preferably the second actuating means 15 acts between the chassis 11 and an arm 13 while the first actuating means 14 preferably lies parallel to the arm 13 and acts as a rigid brace during vertical movement of the bucket 12. The truck may carry a dozer blade and it may be mounted on tracks. Also disclosed is a dumper truck seat (22, Figs. 2 and 3) pivotally mounted on the truck so that it can be pivoted from storage (Fig. 2) to in use (Fig. 3) positions.
Patent GB-2302595-A (GB)
Title: Network analyzer
Inventor: HELD WERNER DIPL ING
IPC: G01R27/30
Filed: 1996-05-15
Abstract: A network analyzer arrangement comprises: an oscillator 1, which supplies test signals to a network under test 3; a device 4, which measures output signals from the device 3 at a selected frequency, and a control unit 2. The control unit 2 is arranged to adjust the time period between step changes in the test frequency signal emitted by the oscillator 1, depending upon the condition of the output signals received by the measuring device 4. The said time period may be dependent upon at least two immediately successive measurements from device 4, whilst under test at a certain frequency, or on the transient response of the network 3 to a certain frequency of test signal. Testing at a certain frequency may continue until the measured output from the network 3 has come within required preset parameters. However the frequency may be stepped changed to the next test frequency after a maximum test period or if the signal is unsteady. The control unit 2 may be a microprocessor.
Patent GB-2313397-A (GB)
Title: Resilient clip
Inventor: BAUM HEINZ OTTO
IPC: B60J10/00
Filed: 1996-05-22
Abstract: A resilient clip 12 for mounting on a metal stud 20 for welding to a receptor surface 10 and having a projecting head 22, has a mounting aperture 18 of keyhole design and a face 34 adapted to contact the receptor surface 10. At least part of the wall 30 of the mounting aperture 18 has a stepwise tapered shoulder 36,38 which tapers to reduce the internal diameter of the mounting aperture 18 towards the face of the clip 12 adapted to contact the receptor surface 10. The clip comprises two parts, one captive to a trim strip 2 and the other, fig 5, attached to the stud 20.
Patent GB-2304732-A (GB)
Title: Culture vessel comprising pitted growth substrate
Inventor: FULLER JESS PAUL
IPC: C12M3/00
Filed: 1996-08-23
Abstract: A method of providing a substrate with a textured surface comprising the steps of forming a mobile surface e.g. silicone rubber studded with a granular material e.g. salt on the substrate, setting the mobile surface and removing the granular material e.g. using water to leave a textured surface on said substrate, and apparatus for use in culturing micro-biological material comprising a substrate produced by such a method. The pitted surface provides a greater surface area for cell culture.
Patent GB-2317625-A (GB)
Title: Overflow fitting for a syphon-discharge W.C. cistern
Inventor: COPELAND DANIEL ROBERT
IPC: E03D1/00
Filed: 1996-09-27
Abstract: An internal overflow pipe forms an integral part of the water-closet cistern's syphon flushing unit either as an open type 1 as seen in Fig 2 or inverted as a closed type 5 as seen in Fig 4.
Patent GB-2306824-A (GB)
Title: Solid state power transmitter protected against transient currents
Inventor: BOULZAGUET GUY
IPC: H03F3/217
Filed: 1996-10-31
Abstract: The invention relates to protection against oscillating transient currents triggered by the change by the transmitter from one steady-state regime to another steady-state regime. During the time when there is a risk of oscillating transient currents being produced, the internal resistance of the transmitter is artificially increased by adding resistors (R1-Rn) arranged in series with the outputs of the amplifiers (A1-Am) of the transmitter.
Patent GB-2323744-A (GB)
Title: A method and apparatus for supporting unknown addresses in an emulated local area network using an asynchronous transfer mode interface
Inventor: O'CONNELL ANNE
IPC: H04L12/70
Filed: 1997-01-17
Abstract: An interface is disclosed for transmitting data packets between clients in an emulated local area network (ELAN). When the destination address of the packet is unknown, address resolution is requested. A content addressable memory is used to allocate a virtual channel over which the packet is broadcast to all clients. This channel is known as a broadcast unknown server (BUS) channel. The unknown address is written into the memory and the age field therein is used to indicate that address resolution has been requested.
Patent GB-2310726-A (GB)
Title: Fire detection sensor
Inventor: WILLIAMS EDWARD WATKIN
IPC: G08B17/117
Filed: 1997-02-28
Abstract: A sensing device for detecting and giving early warning of fires includes a sensor 10 comprising a substrate 12 having a layer of a composition comprising a semiconducting metallic oxide, a first pair of electrodes 13,14 connected to the oxide layer and connectable to a circuit for monitoring the resistance between the electrodes which varies in the presence of carbon monoxide gas in the vicinity of the sensor and a second pair of electrodes 14,15 connected to the oxide layer and connectable to a circuit arranged to pass a current between the electrodes and monitor the value of the current, an optical fibre 17 being attached at one end 16 to the oxide layer between the electrodes of the second pair and its other end terminating in a smoke chamber 19, means 20 being provided to shine light through the smoke chamber and optical fibre to the oxide layer.
Patent GB-2323331-A (GB)
Title: Keyboard collapsible about three parallel axes
Inventor: DANIEL SIMON RICHARD
IPC: G06F3/02
Filed: 1997-03-21
Abstract: The keyboard is collapsible about three parallel axes 16,17 between a deployed configuration in which the keyboard is generally planar and a collapsed configuration. In the collapsed configuration, the keyboard has a generally "W" shape. The keys 20,21,6A of the keyboard are slidable via springs and flexible straps in the plane of the keyboard in a direction transverse of the axes to enable folding of the keyboard.
Patent GB-2312012-A (GB)
Title: A detachable winch for a ladder
Inventor: BAGLIN NEIL ERNEST
IPC: E06C7/12
Filed: 1997-03-21
Abstract: A load handling device for raising and lowering loads comprises a winch assembly 8 mounted on rungs of a ladder. The loads are lifted by a line 11, strap or the like which is supported at height above the winch 8 either by passing the line 11 over a rung or by passing it over a pulley 29 which may be mounted towards the top of the ladder, supported by a pair of yoke formation wires 30. The winch assembly 8 may be mounted to any three consecutive rungs anywhere along the ladder's length. Further the winch assembly 8 may be mounted on the side of the ladder closest to a support against which the ladder leans or alternatively it may be mounted on the side of the ladder that is remote from the support.
Patent GB-2311568-A (GB)
Title: Angular roller bearing assembly
Inventor: BUCH STEFAN
IPC: F16C19/46
Filed: 1997-03-27
Abstract: A bearing arrangement, designed in an X-configuration for a planet gear is provided with two angular roller bearings mounted a certain distance apart. Barrel-shaped needles have a large radius of curvature and their length is considerably greater than their diameter. Raceways of the two angular roller bearings have a circular curvature, center of which is located in the radial direction, outside the raceway diameter and in the axial direction, between inner lateral surface and axial center of angular roller bearing in question. As a result, the bearing arrangement is able to pivot slightly even though its dimensions are very small and can also absorb axial loads.