baber/WOPTO huggingface dataset:
Patent GB-2154144-A (GB)
Title: Bone fixation device
Inventor: DE BASTIANI GIOVANNI
IPC: A61B17/66
Filed: 1985-02-11
Abstract: An external minifixation apparatus for use as a bone lengthener, comprises a rigid bar (3) bearing two clamps (5) and (9) for holding pins (8), each clamp consisting of two jaws (4, 6, 10, 11) which are closeable by means of a screw (7) at least one of the clamps being displaceable longitudinally of the axis of the bar, the clamp having one of its jaws (10) provided with a carriage (12) which is displaceable within an opening (13) in the bar by rotation of a threaded rod (14) which passes through a cavity in the carriage (12), the cavity having a thread mating with the thread on the rod (14) and the lower part of the jaw (10) having surfaces (15) for resting against the bar. <IMAGE>
Patent GB-2154302-A (GB)
Title: Driveshaft
Inventor: ZACKRISSON BARRY L
IPC: B23K9/23
Filed: 1985-02-13
Abstract: A driveshaft having a heat-treated aluminum alloy tube and a heat-treated aluminum alloy connection member partially telescoped within each end of the tube and joined to it by welding. The tube has a constant outside diameter and a wall thickness which is constant throughout most of the length and which increases adjacent each end.
Patent GB-2155327-A (GB)
Title: Artificial turf
Inventor: FRIEDRICH HANS-JOACHIM
IPC: E01C13/00
Filed: 1985-03-14
Abstract: The invention relates to an artificial grass, in particular for sports and playing areas, having a filling of free-flowing bulk material, in particular sand, provided between its pile threads such that the free ends of the pile threads project above the filling. According to the invention, the filling is fixed in relation to the pile threads by a bonding agent.
Patent GB-2158059-A (GB)
Title: Device for reducing the surface tension of water
Inventor: SCHAERER EMIL ALBERT
IPC: C02F1/48
Filed: 1985-04-04
Abstract: A device for reducing the surface tension of water comprises a plate (1) which serves to support a water glass (3) and into which a plurality of spaced apart magnets (2,2') is inserted flush with the upper support surface of the plate. The magnets can have alternating north-south polarity. <IMAGE>
Patent GB-2174203-A (GB)
Title: Underground cable detectors and methods of detecting such cables
Inventor: RICHARDSON CHRISTOPHER KEITH
IPC: G01V3/12
Filed: 1985-04-19
Abstract: A method of detecting underground cables comprises detecting a vertical component of magnetic field produced around the cable as a result of an EMF induced in the cable, the EMF being induced consequent upon the magnetic field of a remotely generated signal cuting the longitudinal axis of the cable and the magnetic field of the signal being substantially horizontally polarised above ground and, due to diffraction effects, substantially vertically polarised below ground. An underground cable detector operative to detect cables according to this method comprises and aerial (10) which is arranged to be substantially vertical when in use and a cable detection means for generating a signal indicating the presence of a cable when the aerial passes through the vertical component of magnetic field produced around the cable.
Patent GB-2175695-A (GB)
Title: Neutrally buoyant underwater elongate pressure or bending sensor
Inventor: SPICER LYNDON REGINALD
IPC: G01B7/16
Filed: 1985-05-24
Abstract: A neutrally buoyant underwater elongate member comprises an extruded resilient plastics tube 10 having at least one pair of diametrically opposed conductors 12 incorporated in ridges 11 formed on the inner wall surface of the tube. The distance between the conductors will vary according to bending or compression of the tube, affecting capacitance and characteristic impedance. These variations can be measured using pulse techniques, treating the conductors as balanced pair transmission lines. <IMAGE>
Patent GB-2178078-A (GB)
Title: Quick release rope or strapgrip
Inventor: HENDERSON ROY WALLACE
IPC: F16G11/14
Filed: 1985-06-05
Abstract: The rope or strap passes through a spring eye 3a, between coils of the spring 2, out of the bottom of the spring to form a loop, and is returned through spring eye 3b and knotted. The grip is released by manually elongating the spring. <IMAGE>
Patent GB-2177608-A (GB)
Title: Apparatus for playing a board game
Inventor: ROSSER MAXWELL ANEURIN
IPC: A63F3/00
Filed: 1985-07-08
Abstract: A board 1 includes a central marking 2 about which is marked a rectangular path 3. The centres of each side of the path 3 are connected to the central marking 2 by respective link paths 4 to form a cross. Further diagonal link paths 5 connect the corners of the rectangular path 1 to the central marking 2. The paths 3, 4 and 5 are split into a plurality of player steps having markings thereon associated with James Bond. The board has identified thereon a number of positions 6 having a suitcase symbol for mission successful cards. A further position 7 is for top secret access cards and a further position 8 is for SPECTRE or penalty cards. The central marking 2 acts as a turntable to allow players to move on any available link path 4. Movement on all paths can be bidirectional. <IMAGE>
Patent GB-2177820-A (GB)
Title: Speed control system
Inventor: APPLEBY WILLIAM
IPC: F02D41/10
Filed: 1985-07-10
Abstract: A speed control system for internal combustion engines having power take-offs, especially for driving hydraulic pumps supplying rock drills or concrete breakers. The engine fuel supply e.g. the throttle is adjusted by a dc motor drive (10, 12, 14) fed with current from a two-level voltage regulator (28) via a semiconductor reversing switch (24). A comparator (22) compares a voltage reference set at VR1 with a ripple voltage representing engine speed. When the reference voltage is intermediate the peak and trough values of the speed voltage then: (i) the switch receives a throttle close V2 or an open V3 voltage pulse train input, depending on whether the mean speed voltage is above or below the reference signal, the mark-to-space ratio of either input depending on the periods in which the speed signal is, respectively, above and below the level of the reference voltage, and (ii) the voltage output from (28) to the motor is periodically briefly increased to temporarily increase the gain of the system. <IMAGE>
Patent GB-2163744-A (GB)
Title: Preparation of 6-substituted-furo-(3,4-c)-pyridine derivatives
Inventor: ESANU ANDRE
IPC: A61P25/26
Filed: 1985-08-12
Abstract: <IMAGE> The compounds I (A1, A2 independently = H, C1-C5hydrocarbon, heterocycle up to 6 ring atoms, carbomonocycle, phenylalkyl, phenylalkenyl; each (except H) unsubstituted or substituted by one or more of F, Cl, CF3, C1-C5alkyl, C1-C5alkoxy, C1-C5alkylthio, di(C1-C5alkyl)-amino, di(C1-C5alkyl)-amino- (C1-C5alkoxy),  alpha - or  beta -(C1-C5alkoxy)-N-pyrrolidinyl), which are known compounds of interest for their therapeutical activity, principally in the fields of diuresis, lowering of blood pressure, kidney protection and also as antihistaminic agents, are prepared by reacting the corresponding 6-formyl derivatives with 1- dimethylaminomethyl-vinylmagnesium bromide at the boil in a non-polar solvent such as tetrahydrofuran.
Patent GB-2177022-A (GB)
Title: Screw type crusher
Inventor: HAGLUND SVEN
IPC: B02C19/22
Filed: 1984-07-31
Abstract: A crusher for comminuting material between a rotatable material feeder in the form of a screw conveyor (4) and a number of substantially stationary anvils (3). The anvils (3) are arranged in a spaced, adjustable relationship relative to one another and relative to the screw, such that outlets (16) are formed between the anvils in order to successively discharge comminuted material during the feeding of the material along the screw. The direction of rotating of the screw is reversable, such that the material can be fed in any direction along the screw, thereby being successively comminuted and discharged through the outlets (16). Two press plates (19, 20) are arranged to feed the material under pressure sideways toward the screw (4). The plates are provided with cleaning iron plates (22) for scraping the outlets (16). The bottom of the crusher is swingable, so that the anvils (3) may be moved away, thereby enabling non-comminutable material to be discharged from the crusher. Each end of the screw is provided with a throttle ring (25) in order to reduce any discharge of material via the ends of the screw. The anvils (3) are provided with a cutting edge (14, 15) at each side of the screw.
Patent GB-2194125-A (GB)
Title: Co-extruded semi-moist food product
Inventor: FROEBEL ROLAND ARTHUR
IPC: A23L1/00
Filed: 1986-08-26
Abstract: A co-extruded semi-moist food product is provided which is especially suited for use as a dog treat. The product comprises an inner core which is at least partially covered by at least one distinguishable layer e.g. one which has a different colour, texture or composition.
Patent GB-2197143-A (GB)
Title: Phase-lock loop test-signal generator
Inventor: LANGSFORD PETER ALAN
IPC: H03J1/00
Filed: 1986-11-01
Abstract: An instrument for testing the performance of an antenna utilises a microwave signal source 1 of the type having coarse and fine frequency-control inputs, a sample of the output frequency being mixed 3 with a digitally-controlled synthesised local oscillator frequency 2 and the phase of the mixer output compared 5 with that of a reference oscillator 4 to provide an input 6 to the fine control of the signal source. A phase-locked loop is thus produced which locks the signal source 1 to a frequency set by the synthesised local oscillator 2. In an initial setting- up procedure the coarse control is swept through its operating range until phase locking occurs for each of a number of different frequencies. The value of the coarse control when locking occurs is recorded and the recorded values are used during a subsequent test procedure to enable almost immediate locking of the signal source onto the correct frequency. In a preferred arrangement the loop strain of the phased locked loop is monitored 12 and the coarse control adjusted so as to minimise loop strain. It is this adjusted value which is then memorised. <IMAGE>
Patent GB-2207307-A (GB)
Title: Fail-safe monitoring circuit
Inventor: SINCLAIR JOHN PATTERSON
IPC: H03K17/95
Filed: 1987-07-22
Abstract: A fail safe circuit (10) for monitoring signals from a sensor (16) includes a microprocessor control (12) which is alternately connected to the sensor (16) and a reference source (18) via an A-D converter (20). In normal operation, a pulse train output from the control (12) is applied to the gate of a MOSFET (VT1) to control a normally energised and open relay (24), which is powered by a voltage source V, via a diode pump circuit (28). Any fault in the sensor (16) or circuitry (10) will result in the relay (24) becoming deenergised so that it closes to activate an alarm or the like. <IMAGE>
Patent GB-2193913-A (GB)
Title: Self-centering drill bit with pilot tip
Inventor: CHACONAS PETER C
IPC: B23B51/02
Filed: 1987-08-18
Abstract: A self-centering twist drill bit 20 is formed with a "fishtail" cutting section 32 having major cutting lips 72 and 74 on a working end 26 thereof at a point angle of 190 DEG . Tip relief surfaces 76 and 78 trail cutting lips 72 and 74. A pilot tip 38 on the working end 26 extends axially from the "fishtail" cutting section 32 and is formed with a split point having leading cutting edges 40 and 42 and minor cutting lips 46 and 48. Outer surfaces 58 and 60 of pilot tip 38 are each formed with a radial relief and a back taper and joins with cutting section 32 along fillets 92 and 100 which are also radially relieved.
Patent GB-2195548-A (GB)
Title: Games table earthing system
Inventor: HAMILTON JOHN GEORGE
IPC: A61K9/36
Filed: 1987-08-28
Abstract: A games table, especially a snooker table (1), is provided with means to remove static electricity from balls eg. the snooker cue ball which is generated in the balls during movement of the balls on the table. These means comprise an electrical contact element (2) which is fitted into a cushion (4) of the table (1) so as to be occasionally contacted by a games ball on appropriate compression of the cushion by the ball, the electrical contact element (2) being connected to earth (3) or a charge sink. Preferably an electrical ring collector (2B) is provided to which various contact elements (2) are joined in parallel so that as to avoid a complete malfunction if one of the contact elements (2) fails. <IMAGE>
Patent GB-2194836-A (GB)
Title: Door handle assembly
Inventor: HENDERSON WILLIAM IAIN MACKIE
IPC: H05K9/00
Filed: 1987-08-28
Abstract: A door designed to exclude electromagnetic radiation has two handles 3, 4 joined by an electrically insulating door spindle 6. The insulating nature of the spindle prevents electromagnetic interference being transmitted along it from the outside to the inside of the door. <IMAGE>
Patent GB-2197694-A (GB)
Title: Pump closure for carbonated beverage container
Inventor: BEYER MICHAEL BRUCE
IPC: B65B31/04
Filed: 1987-11-05
Abstract: Screw cap 16 is integral with pump cylinder 18 in which a piston 36 is reciprocated by hand to increase pressure within the container. A seal ring 56 with a sealing lip 72 is mounted in a groove 58 in the piston for axial movement such that on the downstroke, as shown, the gas in chamber 54 is compressed and forced past a check valve 86 into the container but on the upstroke an axial groove 68 is opened to the annular space 50 to allow air to pass into the pumping chamber 54. The valve 86 has a resilient skirt 86A which is forced against a conical seating by the pressure in the container to close off inlet passage 88. <IMAGE>
Patent GB-2200103-A (GB)
Title: Grinding calcium sulphate
Inventor: RILEY PETER WILLIAM
IPC: C01F11/46
Filed: 1988-01-13
Abstract: There is disclosed a process for preparing calcium sulphate having a particle size distribution such that at least 50% by weight of the particles have an equivalent spherical diameter smaller than 2 microns, which process comprises the following steps:   (a) mixing a relatively coarse calcium sulphate with water to form an aqueous suspension containing from 5 to 45% by weight of dry solids; (b) comminuting the calcium sulphate in the suspension formed in step (a) by agitating the suspension in admixture with a particulate grinding medium until the calcium sulphate has a particle size distribution such that at least 50% by weight of the particles have an equivalent spherical diameter smaller than 2 microns; (c) separating the aqueous suspension of ground calcium sulphate formed in step (b) from the particulate grinding medium; and (d) dewatering the aqueous suspension in a filter press at a pressure of at least 500 pounds per square inch (3.45 MPa); and wherein steps (a) to (d) are conducted in the absence of a dispersing agent. Also described is a process for preparing an aqueous suspension of finely divided calcium sulphate. p
Patent GB-2207276-A (GB)
Title: A display device
Inventor: ZERF TERENCE GEORGE
IPC: G09F11/02
Filed: 1988-07-19
Abstract: A display device 10 comprises a plurality of prismatic rotors 12 mounted for rotation within a support frame 16, the rotors being mounted in a configuration in which, upon rotation, different faces of the rotors can combine to define a continuous display surface 18. The drive arrangement for the rotors 12 permits rotation of the rotors in different modes and different faces of the rotors to be aligned with the continuous display surface 18 in different sequences. As shown, a motor 26 and gear 22 drives belts 34 which carry a toothed portion 38 for consecutively rotating the prismatic rotors 12 through 120 DEG  to cause a rippling effect. Further effects can be achieved by using a timer, adjusting the axial position of the rotor sprockets to vary which rotor is to be rotated, intermittently or continuously, using different sets of rotors in combination one in front or below the other, and driving rotors in opposite directions by providing drives on opposite sides of the device 10. <IMAGE>
Patent GB-2222411-A (GB)
Title: Making particulate detergent compositions
Inventor: TAYLOR THOMAS
IPC: C11D11/02
Filed: 1988-09-01
Abstract: A method of manufacturing a plurality of built, particulate detergent compositions comprises spray-drying a base powder and preparing a plurality of different, separate compositions by adding other constituents to quantities of the said base powder, preferably in proportions such that the base powder constitutes at least 15 wt% of each of the final compositions.
Patent GB-2219013-A (GB)
Title: Method and apparatus for impregnating a liquid into wood and far infrared-ray panel heating structure
Inventor: IKEDA NOBUO
IPC: B27K3/08
Filed: 1988-11-07
Abstract: In a method and apparatus for impregnating a liquid (20) such as a resinous liquid into wood (2), timbers to be subjected to the impregnated are placed in a pressure tank (1) which is capable of reducing or increasing the interior pressure thereof and the inside of the pressure tank (1) is evacuated through a monitoring timber (73) identical in properties with the timbers (2) to be subjected to the impregnation, to expel the air present in the tank and the timbers. The liquid (20) is injected into the pressure tank (1) under pressurised conditions, while continuing the evacuation, to impregnate the liquid into the timber, and the impregnation is completed when the liquid begins to flow out of the tank through the monitoring timber. 
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Patent GB-2230485-A (GB)
Title: Pressurized blasting machine
Inventor: BAKER RHODERICK JONATHAN SPENC
IPC: B24C7/00
Filed: 1989-04-14
Abstract: In an abrasive blasting machine for cleaning buildings comprising a container (12) for abrasives, the container having an air supply line (18) from a pressurized air supply via an isolator valve (59) arranged to be turned on and off by a pilot air pressure supply line (54), and having an outlet (15) controlled by a motoring valve (16) and opening into a delivery hose (21) supplied with pressurized air via the isolator valve, the isolater valve (59), preferably a ball valve, is selected so that when fully open it does not substantially restrict the air flow to the container and hose. The container includes an exhaust outlet (64) controlled by an exhaust valve comprising a length of flexible hose squeezed by a piston actuated by pilot air pressure. The metering valve (16) comprises an unflanged length of grit blasting hose (81) located in a gate valve. Preferably all of the isolator (20), exhaust (65), choke (66) and air pressure control (19) valves are controllable by pilot air pressure supplied by a common line (53) to control means (50, 51, 52) adjacent the outlet (22) of the hose (21). <IMAGE>
Patent GB-2221040-A (GB)
Title: Electron spin imaging of substances in samples that include dissipative material
Inventor: HALPERN HOWARD J
IPC: G01R33/60
Filed: 1989-10-04
Abstract: In electron spin resonance apparatus for deriving data representative of an image of the distribution of a predetermined substance within a sample of a kind that includes dissipative material, a magnetic field is established within the sample and resonance is stimulated at a frequency sufficiently low to penetrate to all locations within the sample. In particular the ESR frequency may be less than 1 GHz, eg. 260 MHz, and the image may be of oxygen in living tissue. <IMAGE>
Patent GB-2224079-A (GB)
Title: Volumetric meter for liquids and/or gases, particularly suitable for service stations
Inventor: BERGAMINI GIORGIO
IPC: G01F3/08
Filed: 1989-10-18
Abstract: The meter has a rotor provided with radial cavities 23 in which there are housed rolling rollers 9-13 which, by undergoing mutual repulsion by the action of magnets 14 embedded in them, are urged radially into a sealed state against the inner surface 15 of the cylindrical chamber. To reduce leakage the surface is provided in positions straddling opposite maximum and minimum clearance zones 7 and 6 with two portions C D and A B having constant curvatures with their centre on the rotor axis and extending through an angle equal to the angular pitch between two successive rollers, ie to 360 DEG  divided by the number of rollers used. In addition to main inlet and outlet ports 19, 20, further inlet and outlet ports 21, 22 cooperating with the rear space in the housing cavities are provided to minimize seepage losses. A magnetic sensor 16 may be associated with magnets 14 to determine volumetric flow rate. The eccentric pin 17 is rotationally adjustable to provide fine adjustment of the meter. The meter may be used as a pump or motor. 
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Patent GB-2238686-A (GB)
Title: Multi-element optical tracker
Inventor: HUNTER IAN
IPC: G01S3/786
Filed: 1989-11-28
Abstract: A sensor for detecting an airborne vehicle such as a helicopter comprises three or more sensor elements 5-8. The outputs of these elements are monitored, and, when an element produces an output, means such as logic circuitry in a detector (17) re-orientate the array of sensor elements in an attempt to produce an output from all of the sensor elements and thereby align with the airborne vehicle. The sensor can be used on a directional warhead of a mine. <IMAGE>
Patent GB-2238593-A (GB)
Title: Clamp for a pipe stopper
Inventor: GIBSON KENNETH STANLEY
IPC: F16L55/136
Filed: 1989-11-30
Abstract: A mechanical clamp (10) comprises a body (16) to which is attached a compression ring (18), and a plurality of collets (20). The compression ring has tightening bolts (22) and release bolts (28). The collets are mounted on bolts (34) which can be manipulated directly or indirectly to help release the collets (20) from clamping engagement eg. to the inside or outside of a pipe (14). The clamp (10) has an extension pipe (12) to which a piece of equipment such as a pipe stopper (not shown) can be attached. <IMAGE>
Patent GB-2225607-A (GB)
Title: Improvements in or relating to locks
Inventor: BURROWS LESLIE
IPC: E05B59/00
Filed: 1989-12-04
Abstract: A lock has a primary unit (10, 11) from which top and bottom actuator strips (12, 13) are extended or retracted to lock or release upper and lower secondary locking units, the primary unit including two non-coaxial spindle operable follower assemblies (19, 20), each of which is operable to slide a bottom actuator plate (27) and thereby retract or extend the strips (12, 13), a latch bolt (22), movable between respective extended and retracted positions by one of said follower assemblies (19) and also by an actuating mechanism (47, 50), a deadbolt (18), movable between respective extended and retracted positions by a further, key operated actuating mechanism, extension of the deadbolt causing a deadbolt projection (42) to enter a slot (30) of the bottom actuator plate (27) preventing movement of the plate (27), and deadlocking the follower assemblies against angular movement in one direction by operation of external operating handles connected thereto, in use. <IMAGE>
Patent GB-2235420-A (GB)
Title: Improvements in retractable vehicle hoods
Inventor: DAVIS PHILIP PETER
IPC: B60J7/06
Filed: 1990-03-21
Abstract: A retractable hood arrangement for a road vehicle of the kind having a stepped load carrying platform, wherein, over the stepped down length of the platform, rails (14) on which the hood can slide are carried by drop down wall members (22) and pillars (26), so as to form a continuous rail along the entire length of the platform when the wall members and pillars are locked in their upright positions. <IMAGE>