baber/WOPTO huggingface dataset:
Patent GB-2231570-A (GB)
Title: Amine salts of a naphthalenepropionic acid derivative
Inventor: KREFT ANTHONY FRANK
IPC: C07D215/14
Filed: 1989-10-31
Abstract: The invention concerns  alpha -methyl-6-(2-quinolinylmethoxy)-2-naphthalene acetic acid, amine salts wherein the amine is an hydroxyalkylamine of formula NR1R2R3 wherein R1 is hydrogen, phenyl, alkyl of 1-6 carbon atoms or hydroxyalkyl of 1-6 carbon atoms, R2 is hydrogen, alkyl of 1-6 carbon atoms or hydroxyalkyl of 1-6 carbon atoms and R3 is hydroxyalkyl of 1-12 carbon atoms. The preferred salts are the tromethamine salts. The amine salts have enhanced activity as compared to the parent acids.
Patent GB-2243077-A (GB)
Title: Retractable plug assembly for a waste outlet
Inventor: FLEMING GORDON MCLAREN
IPC: A47K1/14
Filed: 1990-02-09
Abstract: A retractable plug assembly for a waste outlet of a wash tub such as a sink or bath comprises a support plate 1 attachable to the wash tub and a plug 7 retractably mounted on the support plate. The latter may fit over an overflow outlet and may house a reel 3. In a modification, the reel may be located within the plug, a nylon cord passing around the reel and being attachable to an overflow outlet plate. <IMAGE>
Patent GB-2240797-A (GB)
Title: Improvements in cutting elements for rotary drill bits
Inventor: TAYLOR MALCOLM ROY
IPC: E21B10/56
Filed: 1990-02-09
Abstract: A preform cutting element for a rotary drill bit comprises a polycrystalline diamond cutting table 10 bonded to a coextensive substrate 11 of cemented tungsten carbide. The portion of the peripheral surface 15 of the substrate rearwardly of the cutting edge 16 of the diamond table is relieved, as viewed in axial section in a plane passing through the cutting edge. To achieve such relief the surface 15 of the substrate may be inclined towards the axis of the cutting element as it extends rearwardly away from the cutting table, or it may be cut away by a constant amount to the rear of the cutting table. In either case the relieved portion of the surface of the substrate rearwardly of the cutting edge, regardless of the angle of inclination of the cutting table itself, is spaced further from the surface 21 of the formation being drilled than it would be if it were not so relieved, and this tends to retard the formation of a wear flat on the substrate. <IMAGE>
Patent GB-2247160-A (GB)
Title: Rotary windscreen wiper blade assembly
Inventor: POLO VICENTE GAMON
IPC: B60S1/44
Filed: 1990-07-17
Abstract: A rotary windscreen wiper blade assembly comprises a wiper blade 3 rotatably mounted on the end of a wiper arm 1 and drive means 4, 5 for rotating the blade through an appropriate transmission mechanism. The latter may comprise bevel gearing, a Bowden cable, or cogged belt. The arm may be telescopic and the blade may be straight or curved. The drive means may displace the arm to and from its operative position. <IMAGE>
Patent GB-2241622-A (GB)
Title: Reducing distortion in r.f.power amplifiers
Inventor: MCGANN MELVYN
IPC: H03C1/06
Filed: 1990-12-06
Abstract: A high frequency SSB radio transmitter has an envelope amplitude modulator (3) for varying the envelope of an r.f. signal source based on an error signal from envelope detectors detecting the envelope of the input and output waveform. It also has a phase modulator (4) in a main feedback loop for varying the phase of the input waveform based on differences detected in phase detector (10) between the instantaneous phase of the input and output r.f. signal. To overcome the problem of spurious outputs from phase detector (10) resulting from the cross-over points of the SSB waveform when there are carrier breaks and other problems, a subsidiary, phase lock loop (12) feeds a signal derived from the error signal to phase modulator (13) to tend to hold the input A, B in such a phase relationship that the output is zero. To cope with large phase shift errors between input waveform and output resulting from when the power amplifier changes frequency or temperature variations e.g. at the antenna, a broadband phase shifting network (17) is brought into operation when a dual voltage comparator (19) senses that the signal fed to modulator (13) passes a value corresponding to its extremes of adjustment.
Patent GB-2239654-A (GB)
Title: Caramel composition for dyeing cigarette paper; purification of caramel
Inventor: ST CHARLES FRANK KELLEY
IPC: A23L1/275
Filed: 1991-01-04
Abstract: An aqueous dye composition for colouring cigarette paper brown comprises caramel as the brown colouring agent, and a plasticiser to prevent the paper from becoming brittle, e.g. glycerine, propylene glycol, polyethylene glycol or triethylene glycol. The composition can further include (a) carmine as a red colouring agent to change the shade and hue of the brown colour of the caramel; and (b) a burn additive to promote the burning of the dyed paper, e.g. potassium citrate. Caramel is purified by triturating with aqueous ethanol or by diafiltration to remove most of the compounds in the caramel which will pass through a dialysis membrane having a molecular weight cut-off range of 2000-30,000.
Patent GB-2253731-A (GB)
Title: Selectable registration display
Inventor: JUPP RICHARD VAN GEORGE
IPC: G09F21/04
Filed: 1991-03-11
Abstract: A selectable registration display for a towable vehicle has a main body 1 which contains the individual cells 4 housing the mechanism which selects each character which is revealed on face plate (8, Figure 2). The front cover 19 is lowered to gain access to the individual character cells, the knurled knob 9 is rotated revealing each letter or number relating to the registration mark of the vehicle. Depending on the configuration of the registration mark the cells are slid from side to side so as to constitute the correct format (as in figure 5 or 5a). When the correct number is obtained the front panel 19 is replaced and locked, so as to render the unit inoperable and lock the cells in position. Each individual cell may have a flip over display unit (Figure 2). Alternatively, the display may be of the dot-matrix type or a liquid crystal display. The cells may be mounted on rods 12 so as to enable the cells to slide into a desired format. <IMAGE>
Patent GB-2245277-A (GB)
Title: Plastic tubes, their production and use
Inventor: MUKAWA TATUHIKO
IPC: B29D23/00
Filed: 1991-05-24
Abstract: A plastic tube is made of polyamide and acrylonitrile rubber polymer, the latter being elastomeric. The plastic has a network structure comprising normal chains and side chains (1) of repeating amide units and either elastomer (2) present in spaces (3) formed in the network structure in the case of a blended polymer or attached to said chains in the case of copolymerised polymer. Such tubes may be used to connect motor vehicle parts requiring flexible but durable tubing. <IMAGE>
Patent GB-2248895-A (GB)
Title: Double toroidal race variator with two variable outputs
Inventor: TOMLINSON MALCOLM
IPC: F16H37/08
Filed: 1991-09-12
Abstract: Double toric variator, and associated dual path transmissions, wherein a pair of driving roller sets (10, 11) are arranged in parallel and are precessible to provide two variable output ratios each being the reciprocal of the other at any given roller orientation. Also, a dual path transmission is capable of applying a substantially constant traction load alternately to each half of a double toric variator as each half takes up the variable drive of the dual path. Further aspects of the invention reside in an asymmetric double toric variator with in-series drives providing a ratio spread equal to the product of their ratios and, also, a symmetric coaxial arrangement of four toric drives which eliminate the need for a thrust bearing and provide two variable output ratios each being the reciprocal of the other. <IMAGE>
Patent GB-2249678-A (GB)
Title: Position measurement
Inventor: MITCHELSON DAVID LLOYD
IPC: G01S17/06
Filed: 1991-10-18
Abstract: Apparatus for the determination of the position of an object comprises a radiation sensor (16) sensitive to spatial variations, in at least one direction, of intensity of radiation received from a region of observation (6). A mask (14) attenuates the radiation in a random spatially-variant manner whilst sampling (18) and calculating means (20) determine the autocorrelation function of the received pattern with previously stored values to sense the position of an object (8).
Patent GB-2253134-A (GB)
Title: Washing machine with drainage pump
Inventor: ROSSI MARIOGINO
IPC: A47L15/42
Filed: 1992-02-05
Abstract: Washing machine having a drainage pipe (6) and pump (3) which are capable of draining water from a washing tube (1,2) until a residual level (13) is reached. Extending from the intake tube (5) of the pump is a calibrated tube (11) having an inlet hole (12) which is disposed just above the residual level (13). That arrangement avoids excessive drainage of water when a siphon effect is started in the discharge conduit (8, 9) by allowing air to enter the drainage pipe to destroy the siphon effect. <IMAGE>
Patent GB-2253266-A (GB)
Title: Apparatus for dispensing liquid, eg beer or cider
IPC: B67D1/14
Filed: 1992-02-07
Abstract: The apparatus has a valve 15, between a supply pipe 13 and a delivery pipe 18. Movement of a handle 21 in one direction opens the valve 15 via links 21, 24 and rotary cam 20 which acts on the valve operating element 16. The cam 20 has a disc part 31 which is eccentrically pivoted at 32 in a slot 33 in the edge of the cam and is biassed outwardly by a leaf spring 34 so that during a first part of this movement the valve 15 can only be closed by returning the handle to the start position; during the remainder of the movement in the one direction the valve 15 can only be closed by a partial reverse movement. In modifications, reverse movement is necessary for all the opening movement, and the valve is closed at the end of the movement in one direction. Resistance to the movement in both directions is provided by a hydraulic circuit which is independent of the valve 15 and includes piston cylinder 40, 41 and an adjustable flow restrictor in a further valve 45. <IMAGE>
Patent GB-2253856-A (GB)
Title: Conductive ink compositions
Inventor: OKAMI TAKEHIDE
IPC: C09D11/02
Filed: 1992-03-20
Abstract: A curable composition containing an organopolysiloxane, a crosslinking agent, and conductive carbon particles is blended with a silazane compound of formula (1):   <IMAGE> wherein R<1>, R<2>, and R<3> are independently substituted or unsubstituted monovalent hydrocarbon groups, obtaining a conductive ink composition which tightly adheres to insulators, especially insulating silicone rubber. The conductive ink composition is applied to an insulating silicone rubber substrate by a printing technique, resulting in a contact member useful as business machine keyboards.
Patent GB-2256661-A (GB)
Title: Cavity closer
Inventor: SHILLABEER JOHN LOUIS
IPC: E06B1/00
Filed: 1992-04-15
Abstract: A range of cavity closers can be produced by coupling a plate portion (1) to a body portion (10) in different configurations. By having asymmetrically located locking formations (6, 12), relative inversion of the plate portion (1) before coupling gives a differently shaped closer. The body (10) may be rectangular in section with recesses (12) (engageable by projections (6) of the plate portion) differently disposed on different faces. A body (10) may also engage wall ties, and/or a clip for engaging insulating material in a cavity. The body (10) may have a rearward face that is concave so that cavity insulation can extend into it. <IMAGE>
Patent GB-2256634-A (GB)
Title: Sheet control device
Inventor: PFISTERER ALEXANDER
IPC: B41F33/14
Filed: 1992-04-24
Abstract: A sheet-transferring cylinder of a printing machine is provided with two detecting elements 2, 3 arranged such that they detect the outer areas of a leading sheet edge (not shown) and a further detecting element 4 provided between the two detecting elements 2, 3 to detect whether the leading sheet edge is straight or slightly convex or concave. The elements are located adjacent grippers 9 for the leading sheet edge. The detected values may be transmitted at 11 for evaluation or may be processed/stored at 6/7. Evaluated signals may be supplied to a device for adjusting the position of a sheet. <IMAGE>
Patent GB-2266648-A (GB)
Title: Garden cutting tools.
Inventor: WILSON GRAHAM JOHN
IPC: A01G3/06
Filed: 1992-05-09
Abstract: The present specification discloses a cutting tool for use in the garden and workshops, comprising a body (A) which houses a screw impeller (9) which can be driven by a motor (23), the screw impeller (9) being arranged to move air and waste along a flow path extending through the body (A) from an inlet (11) to an outlet (13), the outlet (13) being connectable to a receptacle which can then entrap any material entrained by the air flow, a rotating cutting blade (35, 41) controlled by the screw impeller (9) being located adjacent to the said inlet (11) to act with a fixed cutting blade (31) to cut material projecting therebetween, which cut material is entrained through said body (A) by the screw impeller (9). <IMAGE>
Patent GB-2260855-A (GB)
Title: A digital helix slow wave structure for a travelling-wave tube
Inventor: KARSTEN KENNETH S
IPC: H01J23/16
Filed: 1992-05-18
Abstract: A traveling-wave tube comprises a slow wave structure of digital helix shape which is formed within a composite structure of plurality of stacked thick or thin film substrates 32-40, each having respective pluralities of conductive segments 44, 52, 62, 74, 76 surrounded by insulating material. The superimposing of the substrate layers causes conductive segments from adjacent layers to partially overlap and form a continuous slow-wave structure between an input lead 24 and an output lead 26, that mimics a traditional wire helix. A hollow 42 is formed through the composite structure to allow passage of the electron beam from emitter 14 to collector 18, for example by providing two spaced substrates in each of layers 34, 36, 38 or by chemically etching the hollow after forming the composite structure. The composite structure may also include a plurality of conductive dispersion shaping rails parallel to the electron beam path. <IMAGE>
Patent GB-2267900-A (GB)
Title: Cup dispensing arrangement
Inventor: COYLES ANDREA
IPC: G07F13/10
Filed: 1992-06-17
Abstract: The dispensing apparatus of a beverage vending apparatus comprises a mechanism for actuating a cup separator of a selected stack of cups containing different leverage powders by energising a respective solenoid 8 and thereby coupling a respective connecting rod 4 to a common oscillating disc or reciprocable member which is driven by a motor 13 through a crank and rod mechanism 15, 14, 20. <IMAGE>
Patent GB-2270208-A (GB)
Title: Signal combiners.
Inventor: EVENDEN DAVID CHARLES
IPC: H01P5/16
Filed: 1992-08-25
Abstract: A combiner for microwave signals comprises a first input 1, a second input 3, and an output 2, the first input being coupled via a delay line 4 and a parallel coupler 5 to the output to provide a main signal path 6, and the main signal path being coupled via the parallel coupler and a Schiffman type phase shifter 7 to the second input. The delay line 4 may provide a 270{ nominal phase delay whilst the parallel coupler 5 and the Schiffman phase shifter 7 are arranged both to provide a 90{ nominal phase shift whereby cancellation between similar in-phase signals applied to the first and second inputs is facilitated. The combiner may provide spurious signal cancellation in a feed forward microwave power amplifier. <IMAGE>
Patent GB-2274793-A (GB)
Title: Engine valve timing
Inventor: MA THOMAS TSOI-HEI
IPC: F02D13/02
Filed: 1993-02-03
Abstract: A valve timing strategy is described for an internal combustion engine having a catalytic converter and an exhaust gas ignition (EGI) system for heating the catalytic converter during cold starts, the EGI system comprising an afterburner chamber arranged upstream of at least one catalyst brick of the catalytic converter, means for supplying excess fuel to the engine intake charge to produce hydrogen in the exhaust gases, means for introducing additional air into the exhaust gases and means for igniting the resulting gaseous mixture in the afterburner chamber. In the invention the opening times of the engine exhaust valves are advanced while the EGI system is in operation, to cause the exhaust gases to be expelled from the engine combustion chambers at an earlier instant within the power stroke of the engine, and, therefore, hotter and with more hydrogen.
Patent GB-2278218-A (GB)
Title: Intruder detection system
Inventor: DAY STEPHEN
IPC: B60R25/102
Filed: 1993-05-20
Abstract: An intruder detection system for the passenger compartment of a motor vehicle, comprises a radio transmitter 10, a radio receiver 14 and means 18 for detecting changes in the signal level of radio waves travelling across the area under surveillance from the transmitter to the receiver caused by the presence of an intruder in the area under surveillance. The electric heating element 16 of a front or rear windscreen of the vehicle is connected to act as the antenna for the transmitter or the receiver of the intruder detection system. In particular, it is used as the receiving antenna while part of the wiring loom is used as the transmitting antenna. The system may be integrated into a radio broadcast receiver of the vehicle entertainment system. <IMAGE>
Patent GB-2285544-A (GB)
Title: Electric socket mounting arrangement
Inventor: STENHOUSE DAVID
IPC: H01R25/00
Filed: 1993-12-23
Abstract: The arrangement comprises two plates (10, 11) which are hinged (7) together. The first plate (10) has one edge attached to a U-section clamp (12) which is adapted to clamp on to the rim (16) of an ironing board and an electrical socket outlet (1) is attached to the second plate (11). The arrangement permits the socket (1) to be positioned either parallel or normal to the underside of the ironing board. The clamp (12) may be secured by screws (15). The plates (10, 11) may be made of plastics material. The clamp (12) and first plate (10) may be formed as a one piece unit. Velcro, magnetic or spring means (17) may be used to secure the socket (1) in the required parallel or normal position. <IMAGE>
Patent GB-2285412-A (GB)
Title: Combination greeting card and money wallet.
Inventor: WEARE ALLAN
IPC: B42D15/04
Filed: 1994-01-04
Abstract: A greeting card 5 has an extra envelope-bearing panel 6 attached by means of a perforation 7. The envelope may be formed in part by the extra panel (6) and in part by a further card component (8) attached thereto. Alternatively a separate envelope (14, Fig 3 not shown) may be adhered to a vestigial extra panel (6). In use, the envelope may be used to contain a monetary gift, and (subsequent to detachment along perforation 7) the card may be displayed as a conventional greetings card. <IMAGE>
Patent GB-2277302-A (GB)
Title: Patient hoists
Inventor: HENRY MICHAEL CHRISTOPHER
IPC: A61G7/10
Filed: 1994-02-10
Abstract: A patient hoist has parallel legs 12, 14 which can be splayed by a lever mechanism 50 which is swung about axis 52 by a pedal which is generally parallel to the beam 10 on which the legs are pivoted, and which pedal is rocked about an axis lying parallel to and between the legs so that a pin 46 depending from the pedal moves in an arc lying in a vertical plane to cause that swinging movement. <IMAGE>
Patent GB-2288170-A (GB)
Title: Pill dispensing wheel
Inventor: MCNICOL GRAHAM
IPC: G04F3/02
Filed: 1994-04-05
Abstract: A dispensing wheel 2 rotates, carrying trays 4 holding pills. As the trays pass peg 10 they are tipped out into channel 13. The wheel is driven by a timing mechanism 7. The trays may be of various shapes, depicting fish, angels etc. <IMAGE>
Patent GB-2277949-A (GB)
Title: A method of and apparatus for transporting an object to an underwater location
Inventor: RISK STEWART
IPC: B63B35/00
Filed: 1994-05-12
Abstract: A method of and apparatus for transporting an object to an underwater location is described. The apparatus comprises a floating submersible structure 1 having a pay load area 5. The structure 1 comprises ballast tanks 3, 4 which may be filled with or emptied of ballast to alter the buoyancy of the submersible structure 1. Pulling means 6 is mounted on the structure 1 and connection means 10 are provided for coupling the structure 1 to the bottom of the body of water (23, fig 4b). The connection means 10 engages the pulling means 6 and the pulling means 6 is adapted to pull the submersible structure 1 to the bottom by pulling on the connection means 10 when the connection means is coupled to the bottom e.g. by the provision of anchors (27).   <IMAGE>
Patent GB-2291243-A (GB)
Title: Rain alarm with transmitter
Inventor: SHIPPEN JOAN ELLEN
IPC: G08B21/20
Filed: 1994-07-05
Abstract: The rain alarm comprises a transmitter unit having a hook along its upper edge for attaching it to a washing line W. The transmitter unit houses a transducer 12, a surface 13 of which is exposed when the rain alarm is in use. The transducer 12 is arranged to change its impedance when the exposed surface 13 gets wet. A sensing circuit measures the impedance of the transducer and, in the event of a change, outputs a control signal to activate a radio or ultrasonic transmitter mounted in the transmitter unit 12. The radio transmitter sends a coded signal to a remote receiver unit (not shown) and triggers an audible alarm, such that the user is alerted to the fact that it is raining. <IMAGE>
Patent GB-2292129-A (GB)
Title: Locking device
Inventor: WEAVER ALAN DAVID
IPC: B62H5/06
Filed: 1994-08-13
Abstract: A locking device (20) for inhibiting relative rotation between a bicycle frame (11) and a steering stem (15) comprises a housing (26) secured to the frame (11) and a collet (22) secured to the steering stem (15). The housing (26) has a lock (28) housed in it. A pin (30) passes through a hole (27) in the housing (26) and engages with a recess (24) in the collet (22). When the lock (28) is engaged, a locking element (29) enters into a groove (31) in the pin (30), thus locking all relatively rotatable members together and stopping the pin (30) from being removed. <IMAGE>
Patent GB-2294013-A (GB)
Title: Securing loads on a trolley
Inventor: NIMHAMMAR LEIF INGE ANDERS
IPC: B62B3/04
Filed: 1994-10-14
Abstract: A trolley (1) has a flat platform (2) supported by wheels (3, 4). A handle (5) which is pivotally connected to the trolley (6) carries an automobile retractor mechanism (8), the webbing strap (9) of which is connected to a load engaging element (12) which retains a load (14) on the trolley. The handle can be moved from a first position in which the retractor is free to wind and unwind to permit loading of the trolley, and is then moved to a second position in which the retractor mechanism is locked to retain the load on the trolley. In an alternative arrangement (Figures 3, 4) the strap simply extends over the top of the load and is secured on the other side of the trolley. The retractor may be locked/unlocked by a foot pedal (Fig. 5). <IMAGE>
Patent GB-2283569-A (GB)
Title: Quantitative determination of nucleic acid
Inventor: MINTER STEPHEN JOHN
IPC: C12Q1/6813
Filed: 1994-11-04
Abstract: A method of determining the amount of a nucleic acid comprises providing the nucleic acid to be determined immobilised in a single-stranded form on particulate supports. A probe having a direct or indirect label is then added in excess and hybridised to the single-stranded nucleic acid. Non-hybridised probe is removed, and a representation of the amount of the labelled probe immobilised to the single-stranded nucleic acid is determined. The result is compared with calibration data obtained using known amounts of the single-stranded nucleic acid. The support may comprise non-porous silica.