baber/WOPTO huggingface dataset:
Patent GB-2226174-A (GB)
Title: Liquid crystal display devices
Inventor: CLARKE JOHN ALFRED
IPC: G09F19/20
Filed: 1988-12-14
Abstract: In an LC display device of a known type having droplets of LC material 14 carried in a polymer matrix material 15 enclosed between electrodes 17, 18 to define a plurality of display elements 20 controlling the passage of light from a source 11 through the display device, the polymer matrix contains a light absorbing dye for improving the display contrast, and picture resolution. Display elements formed at the intersections of orthogonal electrodes 17, 18 selectively transmit or scatter light in dependence upon the presence or absence of an applied field, and the scattered light is substantially absorbed by passage through the dye material. The dye may be of a neutral or a desired colour. Dye may also be added to LC droplets for additional absorption or for colouring. An optical projection system may include a plurality of LC devices operating in a respective primary colour in combination with lenses, beam splitters and combiners. <IMAGE>
Patent GB-2214183-A (GB)
Title: Ergoline derivatives
Inventor: ACHINI ROLAND
IPC: A61P25/28
Filed: 1989-01-23
Abstract: Ergoline derivatives unsubstituted in position 8 and substituted in position 9 are useful as dopaminergic agents. Preferred compounds are of formula I   <IMAGE> Where R1 is H or alkey 1 and R2 angl. intermediates for these compounds are also claimed.
Patent GB-2216818-A (GB)
Title: Device for whipping cream
Inventor: CORBIER WIERD
IPC: A47J43/046
Filed: 1989-03-29
Abstract: A device for whipping cream comprises a hollow body (2) having at least one hollow arm (3), of which one end (4) is formed with air outlet apertures (5), the hollow body accommodating an impeller wheel (6) to produce an air stream, which impeller wheel is adapted to be driven by a drive unit (20) with a speed lower than that of the hollow body. <IMAGE>
Patent GB-2235049-A (GB)
Title: Chemical bond microscopy
Inventor: ROSSER ROY JONATHAN
IPC: G01N33/543
Filed: 1989-06-20
Abstract: A scanning microscope for detecting and differentiating molecules 20 has a molecule 18 or group of molecules attached to the probe tip 12. The probe 12 interacts with the specimen 20 via the attached molecule 18 or molecules either by the tunneling current, as in a scanning tunneling microscope or by atomic forces as in an atomic force microscope. The molecular differences in either tunneling or atomic force with different molecules arise because of complementarity (or lack of it) of intermolecular bonds. In one embodiment, DNA sequences would be detected by probing with DNA monomers, looking for natural complementarity. <IMAGE>
Patent GB-2225149-A (GB)
Title: Video apparatus
Inventor: EZRA JACOB
IPC: H04N13/239
Filed: 1989-10-10
Abstract: Apparatus for recording and/or playing back video signals has a spinning drum containing a plurality of magnetic recording and/or playback heads and a tape drive mechanism for causing a magnetic tape to pass over the surface of the drum along a helical path. To allow recording or playback of two video signals simultaneously the drum contains heads (12A, 12B, 126, 12D) at two or more different levels which are spaced apart axially with respect to the axis of rotation (20), the heads at each level scanning a respective band of the tape. The apparatus is of particular use in storing 3D video images. Also disclosed is a 3D video projector having a backlit screen and a retractable inclined mirror (Figures 10 and 11). <IMAGE>
Patent GB-2245696-A (GB)
Title: Light fixtures
Inventor: SORENSEN KAI OVE
IPC: F21V11/00
Filed: 1988-05-17
Abstract: Light fixtures with a reflecting reflector and comprising an oblong light source and a light grating. According to the invention at least some of the parts of the grating are inclined relative to the longitudinal axis of the fixture in such a manner that the light hitting a part of the grating is reflected into a side reflector whereby the curvature of the latter is utilized. As a result the grating need not comprise curved surfaces. In addition the geometric loss is reduced at the same time as the manufacture is simplified and the final structure is reliable.
Patent GB-2232325-A (GB)
Title: Radio telephone equipment
Inventor: MAEDA KOJI
IPC: H04M19/04
Filed: 1990-03-07
Abstract: Radio telephone equipment having a sounding device 20, a sounding device drive circuit 16 for driving the sounding device, and a control circuit 14 for controlling the sounding device drive circuit. When a person manipulates the equipment to originate a call, the equipment interchanges various control signals with a base station to set up a channel for communication. Then, the base station sends to the equipment a control signal indicative of the fact that the other party has responded to the call. In response, the equipment causes the control circuit to activate the sounding device drive circuit which in turn generates a predetermined alert tone to show the user that a conversation is allowed to be held. <IMAGE>
Patent GB-2242847-A (GB)
Title: Welding gun assembly and fluid actuated cylinder
Inventor: WARD ALLAN
IPC: B23K11/11
Filed: 1990-04-12
Abstract: An apparatus for applying a force to a workpiece as required in welding or clamping applies a force to the workpiece through a direct clamping action or through link enhanced scissor type action that increases the mechanical force supplied by a fluid driven cylinder. The fluid driven cylinder 65 has piston rods 66 and 68 at both ends of an elongated external housing. The fluid driven cylinder is supported at one end by an attachment to the end of one piston rod 66 and is supported at the other end by an attachment to the external housing. The second piston rod 68 carries a jaw 48 while the jaw 46 is connected to the cylinder 65. A plurality of pistons permit the piston rods to move relative to one another and also relative to the external housing. The entire fluid driven cylinder can rotate and translate. <IMAGE>
Patent GB-2246273-A (GB)
Title: Adapting teletext information for the blind
Inventor: FARR DAVID GLYN
IPC: H04N7/088
Filed: 1990-05-25
Abstract: Textual information broadcast as part of a national teletext service is transformed into a form more readily understood by a visually handicapped person, e.g. Braille or speech using a speech synthesiser. <IMAGE>
Patent GB-2238236-A (GB)
Title: Rotary brushes
Inventor: MORTLOCK ROY C
IPC: A46B13/00
Filed: 1990-10-12
Abstract: From the backing disc (2) of a rotary brush there depends an annulus of stripping or scarifying wires (4). The wires surround a central region (6) in which there are location and attachment holes (8) for the brush. At one or more of the holes the bottom face of the central region has a recess (12) to receive locking means for the associated attachment element but at least a substantial part of the disc radially inwards of the annulus of wires remains substantially unrecessed. <IMAGE>
Patent GB-2250157-A (GB)
Title: Loudspeaker enclosures
Inventor: SHOWELL STUART VICTOR
IPC: H04R1/28
Filed: 1990-11-15
Abstract: A transmission line loudspeaker enclosure comprises a generally tubular member 11 of elongate configuration within which is disposed approximately midway therealong a loudspeaker unit 10, the tubular member 11 being provided internally with sound absorbent material (16, fig 5) and being of a width and depth of the same order of magnitude as the loudspeaker unit 10. <IMAGE>
Patent GB-2260666-A (GB)
Title: Time division multiplexed diode lasers
Inventor: MAY PAUL
IPC: H01J1/34
Filed: 1991-09-20
Abstract: An array of diode lasers generates a pulsed output at substantially the same frequency in response to an input signal having substantially that same frequency. A signal generator is connected to each of the lasers such that the distance travelled by input signals to each laser is different in order to allocate respective time slots to the output pulses. Applications to optical communication, optical parallel processing and optical sampling by the control of adjacent areas of a photocathode in an electron microscope or electron beam lithography in different time slots are disclosed. <IMAGE>
Patent GB-2249852-A (GB)
Title: Circuit for echo and noise suppression of acoustic signals transmitted through a drillstring
Inventor: DRUMHELLER DOUGLAS SCHAEFFER
IPC: E21B47/16
Filed: 1991-10-24
Abstract: In an electronic circuit for digitally processing analog electrical signals produced by at least one acoustic transducer, a digital time delay circuit is utilized which employs an array of First-in-First-out (FiFo) microchips. Also, a bandpass filter is used at the input to this circuit for isolating drillstring noise and eliminating high frequency output. Spaced sensors 52, 54 provide a delayed signal to summer 46 which is combined with a signal from source 28 and applied to sensors 42, 44 to transmit an uphole measurement signal without any downward travelling noise. Similar arrangement of transducers 62, 64 provide an adaptive amplitude control to balance 75 the signals from the transducer pairs. <IMAGE>
Patent GB-2261809-A (GB)
Title: Buckle support for a seat belt
Inventor: HULL ARTHUR CHARLES
IPC: B60R22/18
Filed: 1991-11-30
Abstract: A seat belt has a buckle (12) mounted on a rigid support (11). the rigid support (11) being pivotally mounted with respect to the vehicle for movement between an operative position and a retracted position, a resilient spring element (25) engaging a pin (35) on the rigid support (11), to locate the rigid support in its operative and retracted positions. The support (11) may be spring-biassed into one of its positions and may be associated with damping means provided by a surface on the spring element (25) or by separate hydraulic or pneumatic means. The seat swab may be provided with a plastic housing to receive the supports (11) in their retracted position (Fig. 2). <IMAGE>
Patent GB-2252027-A (GB)
Title: Oven shelf for a microwave heating oven
Inventor: CHOI JAE CHUL
IPC: H05B6/64
Filed: 1992-01-15
Abstract: A microwave oven shelf (1) is provided with a microwave absorber (3). The microwave absorbing material may be conventional ferrite, carbon, dielectric, carbon ferrite or far infrared radiating material. The microwave absorbing material may be dispersed in a silicon resin of good heat resistance and then attached to a conventional oven shelf. It may be dispersed in a suspension or glaze and then attached to a conventional oven shelf by spraying or deposition. It may form projections or occupy bores or grooves in the shelf. The shelf may be a turntable. <IMAGE>
Patent GB-2253477-A (GB)
Title: Hit and miss ventilator for window frames
Inventor: HARDY TERENCE
IPC: E06B7/02
Filed: 1992-02-03
Abstract: Ventilating means for attachment to the outer edge of a window or door frame comprises an elongated body member 15 having a series of longitudinally spaced vent openings 17, a second member 20 adapted to be slidably supported in the body member and having a corresponding series of vent openings 21 and a handle 23 for effecting relative sliding movement between the two members to open and close the vent. The unit may include a separate filter housing 25 of identical construction which can be formed by cutting from the same component as the ventilator housing. Advantageously the unit is adapted to engage with existing formations 13 on a window frame 10 and carries replicas 29 of these formations at its outer edge. The combination of member 15 and frame 10 is thus secured in the door or window frame in the same way as would the frame alone. <IMAGE>
Patent GB-2264529-A (GB)
Title: Operating mechanism for espagnolettes and similar fasteners
Inventor: CHAPMAN COLIN WILLIAM
IPC: E05C9/12
Filed: 1992-02-29
Abstract: An operating mechanism for a door or window fastener of the espagnolette type in which two slidably mounted locking bars are driven by the operating mechanism simultaneously in opposite directions to fasten or unfasten the door or window comprises a master pinion (21) which is mounted so that it can be driven by the spindle of an operating handle so as to turn with the handle, a first linearly reciprocable member (10) having a primary rack (14) and an auxiliary rack (15), the primary rack (14) being drivingly engaged by the master pinion (21) and the auxiliary rack (15) drivingly engaging a rotatably mounted slave pinion (22), and a second linearly reciprocable member (11) having a rack (20) corresponding to the auxiliary rack (15) of the first member (10) and drivingly engaged by the slave pinion (22) so that movement of the first member (10) in one direction in response to rotation of the master pinion (21) causes a corresponding movement of the second member (1) in the opposite direction. <IMAGE>
Patent GB-2255171-A (GB)
Title: Air conditioning apparatus having ambient air-conditioning unit and a pluralit y of personal air-conditioning units connected to outdoor unit
Inventor: SHIMIZU KEIICHIRO
IPC: F24F3/06
Filed: 1992-04-23
Abstract: In an air conditioning apparatus, the refrigerant discharged from a compressor (21) of an outdoor unit (A) is passed through an outdoor heat exchanger (23) and then passed through an indoor heat exchanger (34) of an ambient air-conditioning unit (C). It is then returned to the compressor (21) to cool the whole space in the room. At the same time the refrigerant discharged from the compressor (21) which is passed through the outdoor heat exchanger (23) is also passed through indoor heat exchangers (45) of a plurality of personal air-conditioning units (E). Having passed through the indoor heat exchangers (45) the refrigerant is returned to the compressor (21) to separately cool the discrete spaces in the room. At the time of cooling, the processes for the sensible heat load and latent heat load are effected in the indoor heat exchanger (34) of the ambient air-conditioning unit (C) and only the process for the sensible heat load is effected in the indoor heat exchanger (45) of each of the personal air-conditioning units (E). <IMAGE>
Patent GB-2266814-A (GB)
Title: Electrical fuse holder.
Inventor: THOMAS TERENCE WILLIAM
IPC: H01H85/54
Filed: 1992-05-01
Abstract: A fuse holder in which a fuse (2) is held in a container (4) which is arranged to be at least partly "jacked" out of a socket (14) by a rotatable member 18 from an "in contact" position (L) to an outer position (U) where the fuse can be removed and replaced. The "jacking" means 18 is preferably a worm arrangement, that engages a semicircular threaded surface 24 formed in the container 4. Alternatively, a rack and pinion arrangement may be provided. <IMAGE>
Patent GB-2268303-A (GB)
Title: Poster sign system
Inventor: TWEEDIE NOEL LEONARD
IPC: G09F15/00
Filed: 1992-06-25
Abstract: A quick fit poster sign system has a telescopic runner or runners 12 which is or are fitted within a poster sign box 15 in front of a lighting source 16. Between the telescopic runner is is fitted a poster loading panel 13. When in its normal display position the poster loading panel 13 and/ or the poster attached to the poster loading panel can be seen through the clear window 11 within the over-frame 10. To change the poster message the base of the poster loading panel 13 is pulled downwards from within the sign box 15 courtesy of the telescopic runner/s 12 to a depth greater than the depth of the sign itself. After a replacement poster has been fitted to the poster loading panel 13 it is pushed upwards courtesy of the telescopic runner/s 12 until it reaches its normal display position 11 inside the sign box 15. Movement of panel 13 may be assisted by mechanical means such as a sprung-loaded roller with blind, pulley means or counterbalanced weights, or electrical means with or without remote control. <IMAGE>
Patent GB-2260820-A (GB)
Title: Permeability determination from NMR T2 measurements for fluids in porous media
Inventor: JEROSCH-HEROLD MICHAEL
IPC: G01V3/32
Filed: 1992-09-18
Abstract: The fluid-flow permeability of porous media such as rock is determined by combining a measurement of the porosity with a measurement of the transverse relaxation time T2 of fluid in the interstitial space. A series of T2 values is obtained from repeated Carr-Purcell sequence with differing inter-pulse spacings, and a value for T2 with vanishing inter-pulse spacing is extrapolated from this data. <IMAGE>
Patent GB-2260514-A (GB)
Title: Tamper resisting security seal
Inventor: KAY RALPH
IPC: B65D33/34
Filed: 1992-10-12
Abstract: A tamper resistant security seal comprises a laminate having a transparent carrier layer (2); an optical, diffraction pattern defining layer (3, 4); and an adhesive layer (6) for adhering the tape to a substrate. The optical pattern, such as a hologram, defined by the optical pattern defining layer (3, 4) is visible from outside the laminate. The optical diffraction pattern defining layer (3) is formed by a polymeric layer permanently bonded to the transparent carrier layer (2) which, when heated, causes the diffraction pattern to undergo an irreversible change. The adhesive is a pressure sensitive adhesive. An additional removable support layer may be provided on the carrier. The laminate is constructed so that a reduction in temperature below 0  DEG C will cause an irreversible change in the diffraction pattern, or is such that subsequent to such a temperature reduction, attempted removal of the tape from a substrate will cause an irreversible change in the diffraction pattern.
Patent GB-2261507-A (GB)
Title: Distributed fiber optic sensor using clad material light backscattering
Inventor: BOIARSKI ANTHONY A
IPC: G01N21/43
Filed: 1992-12-08
Abstract: A distributed fiber-optic sensor is obtained by using cladding (14) that produces a change in the intensity of backscattered light (20) in the optical fiber in response to a change in the environment of the cladding (14). A sensing means such as an optical time domain refractometer is used to determine the change in intensity of the backscatter light (20) at a specific location along the fiber. The change in intensity of the backscattered light (20) is caused by overall changes in the amount of light in the cladding (14) and changes in the number, size or both of the refractive index inhomogeneities in the cladding (14). These inhomogeneities can be, but are not limited to, composition variations, density variations of the same composition, phase separations, voids, or particulate inclusions. <IMAGE>
Patent GB-2271559-A (GB)
Title: Dispenser with adjustable channel
Inventor: HARRIS SYDNEY JAMES
IPC: A47F1/08
Filed: 1993-03-30
Abstract: A dispenser comprises a first channel (31) arranged to receive a stack of articles such as packages of cigarettes and having two pairs of opposed side walls, at least one pair of opposed side walls (11, 4) of the first channel being adjustable to vary the distance therebetween to receive different sizes of articles. Adjustment of the wall 11 is permitted by series of fixing holes in side panels which are also adjustably spaced by selective utilisation of fixing bosses 42 - 45 or by slotted connecting means. <IMAGE>
Patent GB-2265795-A (GB)
Title: Telecommunication system with increased channels by use of orbiting communication satellites
Inventor: NAKAGAWA OSAMU
IPC: H04B7/208
Filed: 1993-04-01
Abstract: An orbiting satellite-based telecommunication system for providing store and forwarding service by having a ground station, increases the number of communication channels by dividing the frequency band of the up link into a plurality of subchannels on the basis of the Doppler shift amount due to variations in the distance between a ground terminal and said orbiting satellite in accordance with a disclosed protocol. <IMAGE>
Patent GB-2266230-A (GB)
Title: Vacuum cleaner nozzle with duster function
Inventor: KWEON HYEOG MIN
IPC: A47L7/00
Filed: 1993-04-20
Abstract: A nozzle head for a vacuum cleaner has a roller-shaped duster (22) which can be selectively stopped from rotating while cleaning is taking place then allowed to rotate to present a new part of its surface to the substrate. The nozzle head comprises outer and inner casings (23, 24) spaced from each other, a duster supporting shaft (21) detachably and rotatably mounted in the inner casing, a roller-shaped duster member (22) inserted on the duster supporting shaft, a duster holding member (40) which has means for holding the duster supporting shaft and is slid ably mounted in the inner casing (24), means (53, 60) for locking the duster holding member which is fixed to the inner casing, and means (65, 65', 66, 66', 67, 67', 68, 68') for stopping the duster supporting shaft which is disposed between the duster holding member and the opposite ends of the duster supporting shaft. The roller is fixed against rotation when the nozzle is moved in one direction, but upon movement in the reverse direction is freed or partially freed to rotate. This may be achieved by a cam or ratchet arrangement. <IMAGE>
Patent GB-2267089-A (GB)
Title: Cycloheptimidazole derivatives
Inventor: UEYAMA NAOTO
IPC: C07D235/02
Filed: 1993-05-21
Abstract: Cycloheptimidazole derivatives represented by the following formula    <IMAGE> wherein R1 is hydrogen or isopropyl; R2 is lower alkyl; R3 is carboxyl or tetrazolyl, A and A1 are each individually a substituent at the 4- or 8- position, and A1 is hydrogen or hydroxy when A is a hydrogen or A and A1 form an oxo group; and the symbol ---- is two double bonds or saturated single bonds, are useful for treating hypertension and congestive heart failure.
Patent GB-2270345-A (GB)
Title: A bag tie
Inventor: SUZUKI SEIICHI
IPC: B65D33/16
Filed: 1993-09-06
Abstract: A bag tie comprises a substantially flat plate 1 made of elastic material having a first opening 2 for accommodating the bag neck, and a second opening 3 communicating with the first opening 2, and extending to the outer periphery of the flat plate. The bag tie may also include integrally formed fixing means 5, 6. In use the tie 1 is fixed to the neck of a bag via the second opening 3 and the tie is tightened into a substantially conical shape with the first opening 2 as the apex by overlapping side portions of the flat plate on opposite sides of the second opening 3. The tie is fixed in this configuration using the fixing means 5, 6 or a separate fixing. The first opening preferably includes a number of inwardly projecting projections 2a. <IMAGE>
Patent GB-2271515-A (GB)
Title: Playing cards for an educational game.
Inventor: DRUCE HARRY FREDERICK
IPC: G09B1/32
Filed: 1993-09-20
Abstract: In a pack of playing cards, each card carries at least one question 9 and answer 10 and the depiction of one or two die-faces 3. The cards may be used to replace the throwing of a die in a die-and-track game with the distance moved along the track being determined by the number depicted on the die-face. Each card may carry a number of easy and hard questions whose difficulty may be indicated by accompanying symbols such as circles, squares or diamonds. Packs may be provided for simulating games such as snooker. The questions on the cards may relate to disciplines such as spelling, arithmetic or French. <IMAGE>
Patent GB-2272008-A (GB)
Title: Reversible protector for a work member
Inventor: CORNELIUS ERWIN D
IPC: A01B15/02
Filed: 1993-09-22
Abstract: A reversible protector 14 for securing to a work member 12 has recesses 82 located in the lower end thereof which, when assembled, are in mating engagement with protuberances 36 on the work member. A pair of aligned openings 88 are provided near the other end of the protector which align with a transverse hole in the work member for receiving a retaining mechanism 54, 56, 58 therethrough. The protector is symmetrical about a transverse plane, such that, when one end becomes worn, it can be filled to the work member in a reversed position. <IMAGE>