baber/WOPTO huggingface dataset:
Patent GB-2297006-A (GB)
Title: Signal processing
Inventor: HOLNESS PETER J
IPC: H03D3/00
Filed: 1994-12-21
Abstract: Apparatus and method for the detection and demodulation of frequency modulated waveforms which can extract local frequency and local period information from the waveform without having knowledge of the carrier frequency. In one embodiment an incoming sinusoidal chirp is converted to triangular form, then differentiated, the modulus of the differentiated signal being the modulation component of the chirp. In an alternative arrangement, the input signal is sampled and a module calculates the signum value for each sample and then converted to an analog signal, i.e. a rectangular wave. This wave is then fed to an edge detector and a differencer to calculate the spacing between edges and thereby the time period of the waveform.
Patent GB-2289923-A (GB)
Title: Magnetic thrust bearing
Inventor: SHIN MYOUNG-HO
IPC: F16C32/04
Filed: 1995-02-01
Abstract: A magnetic thrust bearing comprises a pair of electromagnets each having an annular chamber (108) whose side opposing a rotor (102) has an opening. A coil slot (109) is provided in the annular chamber in which a coil (106; 107) is located. Inner and outer pole faces (110; 111) are provided on the inner and outer sides of the opening. The outer circumferential radius of the opening at that end adjacent the rotor is less than that of the coil slot adjacent the other end of the opening. This enables a stable operation and enhancement in efficiency. <IMAGE>
Patent GB-2297868-A (GB)
Title: EMI/RFI shielding device
Inventor: DAVIDSON BRIAN JAMES
IPC: H05K9/00
Filed: 1995-02-07
Abstract: An EMI/RFI shield has side walls 4 for directly mounting on a substrate 20, and a push fit lid 1 for removable attachment to the side walls. <IMAGE>
Patent GB-2298366-A (GB)
Title: Attaching artificial crowns to teeth
Inventor: MILNER JOHN MICHAEL
IPC: A61C5/08
Filed: 1995-02-23
Abstract: An artificial crown 2 is attached to a natural tooth 1 by a post or pin 4 which is fixed more securely into the tooth than into the crown. The tooth may be reinforced with a band or binding 5 of stainless steel or carbon fibre-reinforced plastics so as to withstand loading and stress. The crown and fixing cement 3 may also be of less strength than the natural tooth so that they fail under stress before the tooth is damaged.
Patent GB-2289075-A (GB)
Title: Soffit board fixing
Inventor: KNIGHT GARY
IPC: E04D13/152
Filed: 1995-04-20
Abstract: The eaves space around the roof of a house is normally enclosed by a soffit board 20 extending horizontally between the wall 10 and the bottom edge of a vertical fascia board (not shown) which is fixed along the outer ends of the rafters 12. The soffit board is normally fixed to a batten (not shown) fixed to the wall 10. In the present system, soffit board support clips 30 are attached to either the rafters 12 or the wall plate 11 for this purpose. The support clips may have length adjustment means, spring ends to allow the soffit board to be pushed up into place, and stop means to limit the upward movement of the soffit board. <IMAGE>
Patent GB-2300876-A (GB)
Title: A steering column mechanism which does not require close manufacturing tolerances
Inventor: BOBBITT JOHN THOMAS
IPC: F16B2/06
Filed: 1995-05-18
Abstract: A steering column clamping mechanism has connecting bolts 3, 5 interconnecting parallel spaced-apart plates 1, 2 which form a rectangle. The bolts 3, 5 are provided with doomed washers 8 which allows the rectangle to lozenge to a parallelogram which provides the necessary adjustment to dispense with close manufacturing tolerances. One of the connecting bolts 3 is mounted in a bracket 4 fixed to a chassis of a vehicle, the bracket 4 having a depending reaction plate 4A against which an actuating member 10 (eg a clamp bolt, a cam arrangement or a solenoid actuated member) can be urged to push the plate member 2 away from the reaction member 4A, thereby causing the other plate member 1 to compress onto a steering column tube member 9 to clamp it between plate 1 and the opposite side of the reaction plate 4A.
Patent GB-2289820-A (GB)
Title: Wide-angle image dewarping method and apparatus
Inventor: GULLICHSEN ERIC
IPC: G06T19/00
Filed: 1995-05-24
Abstract: A method and apparatus for transforming wide angle video into perspective corrected viewing zones which either a single user or multiple users may select, orient and magnify. The present invention first captures a wide angle digital video input by any suitable means. The captured image is then stored in a suitable memory means so portions of the image may be selected at a later time. When a portion of the stored video is selected for viewing, a plurality of discrete viewing vectors in three dimensional space are chosen on the video input and transformed to a plurality of control points in a two dimensional plane or any other suitable surface. The area between these points which is still warped from the original wide angle image capture is then transformed to a perspective corrected field of view. The perspective corrected field of view is then displayed on a suitable displaying apparatus, such as a monitor or head mounted display. <IMAGE>
Patent GB-2304190-A (GB)
Title: Tracking system
Inventor: SHORT ANDREW CHARLES
IPC: G01S5/00
Filed: 1995-08-05
Abstract: A tracking system (20) for tracking a vehicle (27) comprises a plurality of sensor apparatus (21-24) and a control station (28), each sensor apparatus (21-24) being adapted to receive a signal from the vehicle (27) to be tracked, and to transmit tracking data to the control station (28), the tracking data comprising information concerning the direction from which the received signal emanated from the vehicle (27), the control station (28) being adapted to process the tracking data received from each of the sensor apparatus (21-24) and to provide an output indicative of the position of the vehicle (27).
Patent GB-2290847-A (GB)
Title: Advanced sootblower nozzle design
Inventor: JAMEEL MOHOMED ISHAQ
IPC: F28G3/16
Filed: 1994-02-09
Abstract: A nozzle suitable for use with a device for removal of deposits from contaminated surfaces, such as a sootblower in a heat recovery boiler, is designed to avoid normal shock wave formation, and hence energy dissipation, by achieving a condition whereby, the emergent steam pressure (pe) is related to the ambient pressure (p INFINITY ) by the relationship pe/p INFINITY <about 2, preferably about 1. A compact design achieving this result and able to function over a wide range of flow rates comprises a cylindrical body (32) with a downstream convergent outlet (38) and rounded-head conical insert (40) located axially in the body with its maximum dimension generally coinciding with the commencement of convergence of the outlet and extending through the outlet. <IMAGE>
Patent GB-2296124-A (GB)
Title: Bipolar plate for fuel cells comprises single integral metal sheet having raised regions forming contact surfaces and gas flow paths
Inventor: HUPPMANN GERHARD
IPC: H01M8/0258
Filed: 1995-10-13
Abstract: Between an anode (1) and the cathode (2) of an adjacent cell, a single integral body (400) of sheet metal is inserted with anode contact surfaces on its raised portions (410), and cathode contact surfaces on its lowered portions (420). The spaces between the raised portions constitute channels for combustion gas flow (B) on the anode side, while those between the lowered portions convey cathode gas (K). Cup-shaped rather than pyramidal raised and lowered portions increase contact area and springiness of the plate, making for uniformity of pressure and for suppression of fluctuations of tension.
Patent GB-2295353-A (GB)
Title: Plastics material mesh structures
Inventor: MERCER FRANK BRIAN
IPC: B29D28/00
Filed: 1995-11-24
Abstract: In order to provide wider biaxially-stretched geogrids having high primary direction (PD) strength, crotch-forming zones of a starting material which is at least 2.0 mm thick have protuberances 6. On stretching, PD orientation passes right through the junction 27 but the protuberance 6 causes the orientation ratio of the crotch edge to decrease significantly as orientation enters the central part of the crotch edge. After a secondary direction stretch of at least about 1.5:1, the thickness of the central part of the crotch edge is not reduced by more than about 20%. The stretching does not reduce the thickness of any point along notional ridge lines 31 to such an extent that the ratio of finished thickness to starting thickness at that point is less than about 80% of the ratio of finished thickness to starting thickness of the junction mid-point. In the biax geogrid 25, the junction mid-point is significantly thicker than the PD strand mid-point. The thickest part of the crotch is greater than about 80% of the thickness of the mid-point of the junction 27. The junction 27 has a generally square or rectangular central zone with narrow projections 28 at the corners extending outwards to the crotch edges. <IMAGE>
Patent GB-2294015-A (GB)
Title: Rotary drive mechanism
Inventor: HOPGOOD HENRY ARTHUR
IPC: B62M1/00
Filed: 1994-05-31
Abstract: A drive mechanism for a driven member having a hub (15) and rim (2) coaxial with and supported by the hub (15) comprises at least two transmission cables (12) which extend between the hub (15) and the rim (2). One end of each transmission cable (12) is secured to the hub (15) and extends from the hub (15) over a guiding sheave journalled within a pulley block (13) fastened to the rim (2) and then extends from the pulley block (13) to the next contiguous pulley block (13) in a direction opposite to that in which the driven member is to be rotated. The distal end of the transmission cable is attached to this next contiguous pulley block (13). Tensioners (17) are provided for pre-tensioning each cable (12). The driven member can be the rear wheel of a bicycle whereby the extension of the cables (12) can provide a lag between the turning of the hub (15) and the rim (2) thereby effectively providing a variable ratio gearing. <IMAGE>
Patent GB-2297365-A (GB)
Title: Automatic gear engagement control regulates return of throttle control to driver after shift
Inventor: WHITE GREGORY R
IPC: B60W30/18
Filed: 1995-12-29
Abstract: An electronic engine control (15) monitors engine speed, vehicle speed and determines various engine RPM values and RPM ranges used in fuelling a motor vehicle engine to achieve desired engine speeds prior to and during an automatic gear shift sequence. The engine is coupled to a manual/automatic transmission (28) that includes manually selectable gear operation modes and automatically selectable gear operation modes. In order to assist gear engagement of the automatically selectable gears, the engine is fuel led to a series of predetermined RPM levels to rock the transmission gears into engagement. In so doing, throttle control (40) by the operator first inhibited and the engine is first governed to a synchronous RPM value. Throttle control (40) is returned to operator if gear engagement is verified within a first predetermined delay period. If gear engagement is not verified, the engine RPM is periodically increased or decreased, depending on whether an upshift or downshift is attempted, and throttle control (40) is returned to the operator if gear engagement is verified within a second or third predetermined delay period. If gear engagement is still verified the engine RPM is returned to the synchronous RPM value for a fourth predetermined delay period. If gear engagement does not occur within the fourth delay period, an error recovery routine is executed. <IMAGE>
Patent GB-2298235-A (GB)
Title: A hinge for a covering flap in a motor vehicle
Inventor: NIESSNER HARRY
IPC: B60R7/06
Filed: 1996-02-21
Abstract: In a hinge for a covering flap, especially a glove-compartment cover, in a motor vehicle comprising two articulated leaves 5, 6, the leaf 5 being fastened to a fixed body part (4, Fig 1) after being longitudinally and transversely aligned and the leaf 6 being secured by inserting a tongue 7 into a channel 8 in a main cover body 2, means for aligning the cover vertically comprise at least one tooth 12 on the tongue for spring-loaded engagement into a space between teeth 13 aligned in the insertion direction of the tongue; the tooth 12 is acted on by securing means which urge it into the space between teeth 13. Preferably two rows of teeth 13 are provided with each of which two teeth 12 engage, and the securing means comprise a U-shaped clip 15 whose limbs 17 engage slots 20 in side walls 21 of the channel 8.
Patent GB-2301279-A (GB)
Title: Vehicle seating
Inventor: MACANDREW KENNETH DOUGLAS ALEX
IPC: B60N2/48
Filed: 1996-04-09
Abstract: A vehicle seating unit, for seating two to three persons in the rear of a passenger car, includes a centre armrest 21 connected to a movable upper backrest portion 25 carrying a head restraint 24. When the armrest is pivoted from a horizontal to a vertical position, so that three people can be seated, the upper backrest and the head restraint are also moved so as to place the head restraint in an in-use position. When the armrest is lowered, the head restraint is automatically retracted so that it does not impede the driver's rearward vision.
Patent GB-2305483-A (GB)
Title: Hemispherical washer for use with a bone screw
Inventor: RUNCIMAN JOHN
IPC: A61B17/86
Filed: 1996-04-30
Abstract: A washer 1 has a generally hemispherical recess dimensioned to fit the head (H2, Fig 1) of a bone screw, and an exterior shape closely approximating the shape of the head (H2) of the bone screw and has a second diameter that is larger than the diameter of the head (H2). The washer therefore provides a small diameter screw shaft with the head profile of a larger diameter screw.
Patent GB-2298928-A (GB)
Title: Fluid analyser
Inventor: MILLS LIONEL WILLIAM
IPC: G01N25/08
Filed: 1995-05-10
Abstract: The present invention provides an apparatus for use in indicating the boiling point of fluids across a wide temperature range which comprises a meter (1) of the portable hand held type including a probe (3) for insertion vertically into a fluid for testing with heating means (5) in the probe (3) for heating of said fluid, and monitoring means (6) for monitoring the temperature rise of heated fluid for indicating the boiling point temperature of the fluid. The probe portion (3) has an inner chamber (11 B ), in which are located said heating means (5) and temperature monitoring means (6), and which is provided with thermal insulation means (10) for restricting heat loss from said inner chamber (11 B ) during heating up of said fluid in the inner chamber (11 B ) up to its boiling point. The inner chamber (11 B ) is provided with port means (30, 41) formed and arranged for allowing entry of fluid into said inner chamber (11 B ) upon immersion of the probe portion (3) into said fluid for semi-encapsulation of fluid in the inner chamber (11 B ) and substantially restricting loss of heated fluid therefrom to the exterior during said heating up of said fluid in the inner chamber (11 B ) up to its boiling point, whilst allowing loss of boiling fluid to the exterior thereby substantially increasing heat loss from said inner chamber (11 B ) once said fluid has been heated to its boiling point.
Patent GB-2301467-A (GB)
Title: Wireless pager with separable receiver unit and transmitter unit
Inventor: HARRIS DARYL ROBERT
IPC: H04W84/02
Filed: 1995-11-13
Abstract: A receiver (14) receives at least one message containing a visual message. A display device (16), in communication with the receiver (14), displays the visual message of a selected one of the at least one message. A first housing (20) houses the receiver and the display device to form a self-contained, viable receiver unit (10). A camera (22) captures at least one image. A transmitter (24) transmits a signal based upon the at least one image captured by the camera (22). A second housing (26) houses the camera (22) and the transmitter (24) to form a self-contained, viable transmitter unit (12). The second housing (26) is selectively attachable and detachable from the first housing (20). As a result, the transmitter unit (12) may be selectively attached to the receiver unit (10) and detached from the receiver unit (10).
Patent GB-2305347-A (GB)
Title: Hedge trimmer
Inventor: LOSDAHL CLAES HAKAN
IPC: A01G3/053
Filed: 1996-09-03
Abstract: A power-driven hedge trimmer comprises an engine housing (10) which is attached to a base (11) having a cutting tool (12) and a front handle (13) at one end and a rear handle (14) including a throttle control (17) (Fig. 3) at its other end. The rear handle is rotatable relative to the base to enable adjustment to different operating positions. The axis of rotation of the rear handle is inclined at an angle of about 25{ relative to the longitudinal axis of the cutting tool (12). The rear handle can be latched in three predetermined operating positions by a latch device (21) (Fig. 5). The throttle control is connected to a rotatable pawl (19) cooperating with the latch device in order to prevent releasing thereof during actuation of the gas control and to prevent actuation of the gas control during adjustment of the rear handle.
Patent GB-2313763-A (GB)
Title: Lawn mower
Inventor: CROWLEY DONALD JOHN
IPC: A01D34/695
Filed: 1996-10-25
Abstract: A hover lawn mower comprises a hood 1 defining a chamber 2 having a generally rectangular outline, a source of pressurised air 4 for directing pressurised air into the chamber to support the mower above the ground, and a cutter blade 3 mounted for rotation within the chamber about a substantially vertical axis so that the cutter blade defines a circle of rotation. The cutter blade is positioned within the chamber in such manner that the circle of rotation of the cutter blade protrudes outwardly beyond the generally rectangular outline of the chamber.
Patent GB-2309631-A (GB)
Title: Carrying case or bag
Inventor: NATHAN DAVID EDWARD
IPC: A45C13/02
Filed: 1997-01-28
Abstract: A carrying case or bag has within it a pocket which is of such a dimension as to be able to receive a mobile telephone unit (20; 32) and which is accessible from both the interior and the exterior of the case or bag. Thus the phone unit may be removed for use without it being necessary to open the case or bag. The case may be soft-sided and the pocket be accessible from the exterior via a slit 17, Fig 2, in an end gusset. Alternatively the pocket is accessed via a pivoted flap 42 in the end wall of a rigid case, Fig 7.
Patent GB-2325598-A (GB)
Title: Optical metering using modem and power lines
Inventor: PATTENDEN STEPHEN CHARLES
IPC: G01R22/00
Filed: 1997-03-22
Abstract: An apparatus for reading an electricity meter (1) comprises an optical head (2) and a modem for transmitting electricity consumption data. The optical head (2) has a source which illuminates a rotating indicator and a detector which detects reflected light. Processing means in the optical head detects passage of a mark on the indicator by detecting a change in the level of reflected light and measures the electricity consumption data. The electricity consumption data is transmitted to a electricity utility by the mains wiring and telephone/radio.
Patent GB-2323956-A (GB)
Title: Diffractive liquid crystal device
Inventor: BONNETT PAUL
IPC: G09G3/36
Filed: 1997-04-04
Abstract: A diffractive liquid crystal device comprises a bistable liquid crystal arranged as pixels with each pixel being addressed by a strobe electrode 5 and a pair of interdigitated data electrodes 1a and 1b. A strobe generator 6 supplies an initial banking pulse to each of the strobe electrodes 5 and then supplies strobe pulses in sequence to the strobe electrodes 5 for at least several frames without any more blanking pulses. A data signal generator 2 supplies data signals to the pairs of data electrodes 1a and 1b which switch each pixel to a diffractive or non-diffractive state irrespective of its previous state. In particular, the strobe signals comprise pulses of opposite direction in consecutive frames. To select the non-diffractive pixel state, switching signals are applied to both the first and second electrodes 1a and 1b during each frame. To select the diffractive pixel state, the first and second electrodes 1a and 1b receive non-switching N and switching S pulses, respectively, during odd frames and switching S and non-switching N pulses, respectively, during even frames. This arrangement may be periodically reversed for DC compensation.
Patent GB-2315714-A (GB)
Title: Folding pushchair with seat support
Inventor: JANE CABAGNERO RAMON
IPC: B62B7/06
Filed: 1997-05-23
Abstract: A folding pushchair frame is provided with seat supports 10 for a removable seat on side members of the frame, which supports are braced by elements 16 on the side members of the frame. The elements may support the front ends of struts 12 which hingedly connect the rear legs 8 of the frame to the supports 10. The struts may connect the top of the rear legs 8 with intermediate portions of the supports 10. Notched connectors 14, (15 figure 1) to attach a seat.
Patent GB-2314275-A (GB)
Title: Ear piercing assembly for stud guns
Inventor: MANN SAMUEL J
IPC: A44C7/00
Filed: 1997-06-11
Abstract: A product and method are provided for piercing an ear with an ornamental earring using a conventional stud gun. An earring retainer 500 is provided with an interior cavity sized and shaped to conform generally to the outer dimensions of the ornamental portion 620 of a post-type earring 600 so that when the earring is enclosed within the retainer, the retainer will prevent pivoting of the earring relative to the retainer. The retainer has an outer diameter dimensioned to fit snugly in the plunger of a conventional stud gun and prevent the retainer from pivoting or shifting significantly with respect to the plunger or retainer during use. The retainer can also have a physical feature, such as a notch or ridge (550, fig.5), so that it can be releasably mounted on a carrying block 810 and placed in the plunger of the stud gun without the need for a user to touch any portion of the retainer or earring prior to use.
Patent GB-2323642-A (GB)
Title: Synchroniser with re-indexing means comprising modified splines and lugs
Inventor: BERKSDALE JOHN SHAW
IPC: F16D23/06
Filed: 1997-12-30
Abstract: A synchroniser comprises a synchroniser sleeve 686 having splines 683 which engage corresponding splines 683 carried by clutch hub 679. The sleeve 686 also has modified splines 687 with lugs 689 of a synchroniser ring 680 positioned between the splines 687. During a gear shift, lead angle 675 on the modified splines 687 engages back angle 695 of lugs 689 so that axial movement of sleeve 686 forces the ring 680 into frictional engagement with gear 676, thereby synchronising gear 676 with ring 680. Further axial movement of the sleeve 686 (see fig 7) forces the modified splines 687 past the back angle 695 permitting sleeve 686 and ring 680 to rotate relatively. As the sleeve 686 is moved further axially (see fig 8), flat portion 699 of modified splines 687 passes the lug 689 and the unmodified splines 683 engage dog teeth 688 of the gear 676. If the alignment of the unmodified splines 683 and the dog teeth 688 is not accurate, angle 693 on the modified splines 687 continues to engage front angle 697 on lugs 689, thereby allowing relative rotation so as to align the splines 683 and the teeth 688. In another embodiment a pin-type synchroniser assembly (see figs 12-14) is employed with the arrangement described above.