baber/WOPTO huggingface dataset:
Patent GB-2248476-A (GB)
Title: A friction clutch assembly
Inventor: MAYCOCK IAN COMMANDER
IPC: F16D13/71
Filed: 1990-10-05
Abstract: A friction clutch assembly comprises a flywheel 10, a pressure plate 20, a cover 22 and a diaphragm spring 24. The cover 22 has flexible tabs 28 with cut-outs 34. The tabs snap fit onto the flywheel during assembly so that the cut-outs engage in a groove 40 in the flywheel, dowels 37 transmit drive between the cover 22 and the flywheel. The drive transmitting means may alternatively be formed integrally with the cover and may be formed by the cut-outs (Fig 9). A projection may alternatively engage a starter ring on the flywheel (Fig 10). <IMAGE>
Patent GB-2239561-A (GB)
Title: Method of manufacturing field effect transistors
Inventor: MURAKAMI YOSHINORI
IPC: H01L21/335
Filed: 1990-12-20
Abstract: A sidewall 200 on the exposed part of an insulated gate 4 is used as a mask for forming a groove for a control gate 6 aligned with the insulated gate 4. In manufacturing an insulated gate electrostatic induction type transistor, part of the side of the insulated gate 4 is exposed by etching the substrate 1. The exposed part is covered with a masking material and the sidewall 200 of the masking material is formed adjoining the exposed part. A groove is formed by etching the substrate 1 substantially vertically using the sidewall 200 as a mask. A control gate electrode can thus be formed between two insulated gates in a self-aligned manner, without being subjected to the influence of the patterning error in forming the driving insulated gate. It is possible to minimize the distance between the driving insulated gate and the control gate (i.e. channel thickness) without dispersion. In manufacturing a vertical MOS semiconductor device (see Fig. 6G) a T-shaped insulated gate is first formed, with a sidewall projecting above the substrate. Then a substantially vertical groove is etched in the substrate, using the T-shaped gate as a mask. <IMAGE>
Patent GB-2244307-A (GB)
Title: Locking mechanism for road wheels in a road rail vehicle
Inventor: DIXON ALAN GEOFFREY
IPC: B60G11/46
Filed: 1991-04-04
Abstract: Locking mechanism for releasably locking a component, eg a road wheel axle, on a vehicle in a desired position comprises means (23, 21) for moving the component, or allowing it to move, to that position, a latch member (31) on the component and a locking member (33) movable into and out of operative engagement with the latch member by an air operated actuator (28) to retain the component in, and release it from, the position. One application of the mechanism is to hold in a raised inoperative position a suspended axle (16) of a freight carrying road trailer adapted for rail travel. The latch member (31) and actuator (28) are mounted on the axle (16) which is raised to the inoperative position by an air bag (23). The actuator (28) pivots a brake lever (26), also on the axle, into engagement with a pivoted arm (34) of the locking member (33) which pivots a hook (36) of an associated arm (35) towards engagement with the latch member (31) to hold the axle raised when the air bag (23) is de-pressurised. <IMAGE>
Patent GB-2242743-A (GB)
Title: Faraday effect optical switch and flowmeter
Inventor: GLASHEEN WILLIAM MICHAEL
IPC: G01F1/82
Filed: 1991-04-05
Abstract: A Faraday effect optical switch comprises a monolithic substrate (1) on opposite sides of which are polarization rotation layers (2), (3). A reflection layer (4) overlies one (2) of the rotation layers. A polarizer (6) and an analyzer (7) are arranged side by side on the other (3) of the rotation layers. Radiation is directed onto the switch by an input optical fiber. Radiation reflected from the layer (4) is received by an output optical fiber (10). Means (12) produce a magnetic field for varying the polarization of the incident radiation. A flowmeter comprises such a switch. The flowmeter includes a turbine (24) and a swirl generating impeller (25) each having magnets (35, 36) mounted on their periphery. Positioned on the exterior of the flowmeter housing in line with the magnets on the turbine and impeller are monolithic Faraday effect optical switches (37, 38). Each time the magnets pass by the Faraday switches the switches produce output pulses. The phase difference of the output pulses is an indication of flow rate. <IMAGE>
Patent GB-2255220-A (GB)
Title: Automatic index scan apparatus and method
Inventor: CHOI SEUNG-LYUL
IPC: G11B15/087
Filed: 1991-04-25
Abstract: An index scan apparatus and method applied to a video tape recorder in which video signals corresponding to one screen among reproduced video signals are stored in a memory whenever an index signal is detected during the reproducing mode. A "picture in picture" display is generated by either combining at least one stored screen with a main screen displaying received video signals or by combining a plurality of stored screens. Thus, the user is easily able to find the desired program from the programs recorded on a magnetic tape. <IMAGE>
Patent GB-2256387-A (GB)
Title: Extrusion of aluminium with hollow ribs
Inventor: LAI CHING-MING
IPC: B21C25/00
Filed: 1991-06-05
Abstract: An extrusion die 1 comprises a first die unit 11 having a plurality of tooth-shaped holes 111 in its central region interconnected with one another to form an extrusion outlet, and a second die unit 12 having a plurality of raised blocks 121. Each block is engaged in a respective one of the tooth-shaped holes with a peripheral gap maintained therebetween for extrusion therethrough of aluminium material into a hollow, panel-like aluminium workpiece having a plurality of elongate, hollow ribs interconnected by connecting strips. The extruded workpiece is further stretched into an aluminium mesh having a plurality of hollow ribs with a plurality of open spaces defined therein. <IMAGE>
Patent GB-2256477-A (GB)
Title: Optical sensor with dielectric resonant cavity
Inventor: STEWART WILLIAM JAMES
IPC: G01N21/47
Filed: 1991-06-07
Abstract: A technique for improving the sensitivity of a resonant mirror sensor, which has particular applications in areas involving sensing at an interface such as immunosensing using immobilized antibodies, comprises the introduction of a Bragg grating structure in the sensor to produce enhanced dispersion and hence enhanced sensitivity in the region close to the band edge. This improves the detection limit of the sensor without changing the composition or involving the sensor size and allows more sensitive operation at reduced incident angles. <IMAGE>
Patent GB-2254626-A (GB)
Title: Method of disposal of hot water soluble fabric
Inventor: HONEYCUTT TRAVIS W
IPC: D04H1/42
Filed: 1991-07-18
Abstract: In a method of disposing of garments or other articles such as towels, napkins and bed linen after use, particularly medical use, the garments are made of non-woven fabric of thermoplastic fiber, the fiber being water soluble at temperatures above body temperature (37 DEG C), and after use, the fabric is subjected to water at a sufficient temperature to substantially dissolve the fabric whereupon the water and dissolved fabric are subjected to disposal.
Patent GB-2261633-A (GB)
Title: Magnetic decoration
Inventor: YOUNG DENNIS ARTHUR
IPC: A47G33/08
Filed: 1991-11-20
Abstract: Description of a MAGDEC is an article which is a combination of a fridge magnet and a Christmas tree decoration. <IMAGE>
Patent GB-2255162-A (GB)
Title: Botting the tap hole of a shaft furnace
Inventor: MAILLIET PIERRE
IPC: C21B7/12
Filed: 1992-04-22
Abstract: A tap hole of a shaft furnace is batted using a botting gun (10) fitted with a first hydraulic actuating cylinder (18) holding the botting gun (10) in bearing contact against the wall of the furnace, while a second actuating cylinder (26) actuates a piston (30) which injects the batting mass into the tap hole. In order to limit the contact pressures between the tip of the batting gun (10) and the wall of the furnace, the supply pressure P1 of the first actuating cylinder (18) is modulated as a function of the supply pressure P2 of the second actuating cylinder (26). <IMAGE>
Patent GB-2256549-A (GB)
Title: Simplified programming of a videocassette recorder having multiple and single channel sources.
Inventor: SCHICK ALFRED JOSEPH
IPC: H04N5/782
Filed: 1992-05-14
Abstract: In a videocassette recorder including VCR PLUS TM  capability and used in conjunction with a cable box and also having direct access to the cable, the channel-mapping procedure may be greatly simplified deleting all premium channels from the channel guidelist, and by causing a controller (110) to automatically substitute the cable box output channel for all decoded VCR PLUS channel guide channel numbers not appearing in the channel guide list. <IMAGE>
Patent GB-2269048-A (GB)
Title: Photoemitters
Inventor: HOWORTH JONATHON ROSS
IPC: H01J43/08
Filed: 1992-07-03
Abstract: A III-V photoemitter layer (11) in the form of an array of spaced III-V elements (13) the front faces of which are angled towards the gaps between the elements. Electrons (e* box - middle top *) ejected from the elements' front faces (by impacting photons or electrons) will, under the influence of an appropriate electrical field (E), be swept laterally towards and then through the spaces between the elements, so that though the III-V material is acting in reflective mode, and so has good blue sensitivity, the device itself is acting in transmissive mode, and so has good imaging properties. To form a photocathode/photomultiplier device a plurality of these individual III-V layers may be stacked one above the next, with the elements of each succeeding layer aligned with the gaps in the preceding layer, so that electrons ejected from each layer and passing through the gaps will impact the next adjacent layer without losing their image-defining spatial resolution.
Patent GB-2261682-A (GB)
Title: Wood-preservative belt and method for preserving wood
Inventor: PARTON PHILLIP STEPHEN BRAIN
IPC: B27K3/14
Filed: 1992-11-17
Abstract: A wood-preservative belt 1 comprising a first flexible sheet 2, a wood-preservative material 3 and a second flexible sheet 4, made of a microporous or microperforated material, is useful in the ground line treatment of a wooden pole 5 comprising the following steps: (1) attaching the wood-preservative belt to the pole with the second flexible sheet in contact with the pole; and (2) applying a sufficient pressure to the first flexible sheet so as to cause the wood-preservative material to pass through the second flexible sheet and thereby contact and treat the wooden pole. <IMAGE>
Patent GB-2264945-A (GB)
Title: A process for preparing 1-[/2s/-methyl-3-mercaptopropionyl]-pyrrolidine-/2s /-carboxylic acid
Inventor: SCHNEIDER GEZA
IPC: A61K31/40
Filed: 1993-03-09
Abstract: The invention relates to a novel process for preparing 1-[/2S/-methyl-3-mercaptopropionyl]-pyrrolidine-/2S/-carboxylic acid of the formula I   <IMAGE> in which 1-[/2S/-methyl-3-thiocyanatopropionyl]-pyrrolidine-/2S/-carboxylic acid of the formula II   <IMAGE> is dissolved in an aqueous mineral acid, the solution obtained is diluted with water and the 1-[/2S/-methyl-3- carbamoylthio-propionyl]-pyrrolidine-/2S/-carboxylic acid of the formula III   <IMAGE> that forms is hydrolized with an aqueous solution of a base.t
Patent GB-2268169-A (GB)
Title: Threaded closure cap
Inventor: HIDDING WALTER EDWARD
IPC: B65D41/04
Filed: 1993-06-25
Abstract: An injection moulded closure cap comprising a generally flat cover portion 12 and a depending generally cylindrical skirt (14 fig 1). The inside surface of said skirt having thread means 26 formed thereon for engaging the cap with the neck of a container. Said thread means consists of a plurality of thread segments 26a formed on the upper half of the skirt and having upper and lower extremities 29a and 27a at the same level, thus leaving the lower half of the skirt 64 unthreaded. The cap may have a tamper evident ratchet ring 18 frangibly attached to the skirt. Said ring having a plurality of teeth 20 each with two surfaces, the first (48 fig 7) forming a ramp surface to assist in engaging the cap with a container and the second (50 fig 7) forming an abutment such that the cap cannot be removed from a container without breakage of said frangible attachment. The lower portions (56) of said second surfaces are offset from the upper portions (58) in the direction of unscrewing. <IMAGE>
Patent GB-2269381-A (GB)
Title: Preparation of 1,1,1, trichorotrifluoroethane
Inventor: BROWN STEPHEN MARTON
IPC: C07C17/10
Filed: 1993-07-27
Abstract: A process for the preparation of 1, 1, 1-trichlorotrifluoroethane in which 1-chloro-2, 2, 2-trifluoroethane is subjected to chlorination by bringing the 1-chloro-2, 2, 2-trifluoroethane into contact with chlorine within a reaction vessel characterised in that the process is conducted in the liquid phase in the presence of a chemical free radical initiator under a pressure of from 1 to 20 bar and at a temperature within the range 50 to 120 DEG C, and the product is separated from the reaction mixture by fractional distillation.
Patent GB-2270194-A (GB)
Title: A sliding shutter for a cartridge e.g. a diskette or dat cassette
Inventor: IKEBE MASARU
IPC: G11B23/113
Filed: 1993-08-13
Abstract: A cartridge for a recording/reproducing medium has a shutter 4 for opening and closing a window opening (3) formed in a casing (1) in which a projection 18 or a gate formed at an outer edge of the shutter is provided not to project from the outer edge 19. The post-treatment of the gate can be easy to improve productivity, the stroke range of the shutter can be precisely determined; the mounting and dismounting of the shutter on a recording/reproducing device as well as the sliding movement of the shutter is smooth. Further, the quality of the cartridge is improved. <IMAGE>
Patent GB-2272350-A (GB)
Title: Transmission network and filter therefor
Inventor: BROWN PAUL ANTHONY
IPC: H04B3/56
Filed: 1993-09-08
Abstract: A power transmission network (40) includes input means (52) for the input of telecommunication signals having carrier frequencies greater than 1MHz onto the network (40), and a means for removing similar speech and/or data signals from the network. Preferably a network conditioning element (52) is used which includes a low pass filter portion for filtering out a low frequency high amplitude mains power signal, and a coupling element for input and/or removal of telecommunication signals from the network. In this way both speech and data signals can be transmitted at carrier frequencies of greater than 1MHz along a standard electricity distribution and/or transmission network which when conditioned provides a larger available spectrum per unit length of network and greater transmission capacity than previously known. The quiescent noise level of the conditioned network is also much reduced thus permitting lower signal injection levels for a given signal-to-noise ratio and a consequential reduction in spurious radiation from the network.
Patent GB-2274569-A (GB)
Title: Slurry injection apparatus.
Inventor: CAVANAGH CHARLES
IPC: A01C23/02
Filed: 1993-09-28
Abstract: An apparatus for injecting slurry into the ground has a plurality of injection units each having an injector head 33 fed by a slurry feed pipe 32 and biased downwardly by a coil spring 41. The units are mounted on a chassis 11 which may be lowered and raised to bring the units into and out of contact with the ground. A pair of clamp members 42 disposed one on each side of the feed pipe 32 are controlled by a cable 47 to move relatively towards one another to pinch and close the pipe when the injection unit is raised out of contact with the ground and to move relatively away from one another to open the pipe when the injection unit is brought into contact with the ground. <IMAGE>
Patent GB-2282873-A (GB)
Title: Controlling the temperature of cargo in a container
Inventor: LAWTON ARTHUR RICHARD
IPC: F25D17/00
Filed: 1993-10-13
Abstract: A method of controlling the temperatures of cargo in a container, wherein cooling air is circulated over and beneath the cargo, then between the cargo and the door(s) 7 of the container, for subsequent passage towards the front of the container over the top of the cargo, wherein the cooling air at the rear of the container is separated into two streams by an air separator board 9 having a first limb which is located over the top of the cargo, and a second limb extending approximately at right angles to the first limb so that the internal stream at the rear of the container is separated from the external stream which is subjected to warming from ambient air around the container. The air separator board may preferably be made of wood and has ribs on its internal and external faces. <IMAGE>
Patent GB-2274099-A (GB)
Title: Partitioned basket-type device for receiving at least one workpiece
Inventor: KUHN WILFRIED
IPC: B65D1/38
Filed: 1993-12-20
Abstract: A skeletal basket-type device has plastic rails (3) for receiving one or more workpieces (1, 1'), the plastic rails (3) being secured by holding means under line contact so as to avoid build up of undesirable residues when the device is inserted into a treatment fluid. The line contact is preferably provided by round bar sections (4) located between the plastic rails (3) and other portions of the device and preferably held in position with spot welds. <IMAGE>
Patent GB-2274709-A (GB)
Title: Cask handling system
Inventor: WILSON PAUL
IPC: B08B9/08
Filed: 1994-01-31
Abstract: An apparatus for locating the shive and/or shive hung hole 6 in a cask 2 comprises means for scanning a portion of the cask using a light stripe 12, detecting the scanned image and detecting the deflection in the scanned image when the shive or bung hole is scanned. An apparatus for locating the keystone 32 in a cask 30 comprises means for directing light towards an end of the cask and detecting a shadow 34 formed by the keystone so that the keystone location can be determined. <IMAGE>
Patent GB-2288896-A (GB)
Title: Distress alert device
Inventor: DRESSER DAVID ARTHUR
IPC: G08B5/00
Filed: 1994-03-14
Abstract: The device is contained in a screw-top, crush-proof cylinder. When in use, the balloon 11 is taken from the carrying case along with the pressurised gas cylinder 13, thus the spool locking pins 10a are lifted from the spool housing for free release of the anchor-line 12. The valve 15 is depressed. Helium gas is released to inflate the balloon which is then lifted from the filling nozzle. The non-return valve on the balloon closes. The balloon rises and acts as a marker for location by the rescue party. The balloon may be metallised and the gas valve may be automatically opened by shock or water penetration. The casing includes a split ring for attachment to a rucksack or lifejacket. <IMAGE>
Patent GB-2279228-A (GB)
Title: Wire for a necklace or bracelet
Inventor: TONOKAWA YASUHIKO
IPC: A44C15/00
Filed: 1994-06-28
Abstract: The wire is directly connected to a fastener, without the use of a bulky and heavy connecting element. Rings 3 are integrally formed respectively at both ends of the wire 1 which is made of metal and which joins or links jewels 4 to each other. The rings 3 have a diameter thereof which prevents the jewels 4 from coming off, and are made to a flat shape or contour which is inconspicuous. Through bores 6 are formed respectively in the rings 3. A connecting ring 8 of the fastener 7 is passed through the through bore 6. The wire may be made of gold, silver or platinum so that the wire per se serves also as the necklace or bracelet. <IMAGE>
Patent GB-2294736-A (GB)
Title: Linear bearing for mounting a sail
Inventor: WILKINS PAUL ALFRED COLIN
IPC: B63H9/08
Filed: 1994-11-04
Abstract: A linear bearing 8, 10 for use in mounting a sail 16 for vertical movement with respect to a mast 2 comprises a carriage 24 adapted to co-operate with a track 6 formed on or affixed to the mast. The track has at least one groove 38 disposed to face substantially fully in the aft direction. The carriage comprises complementary grooves 34 to define passageways 35 to receive an array of balls. Further passageways 28 allow the balls to recirculate. By this arrangement, there is direct load transmission in a direction normal to the mast. Lateral recirculating ball passageways 30 may also be provided. <IMAGE>
Patent GB-2283365-A (GB)
Title: Switch actuator
Inventor: MEHDI MOHTASHAM
IPC: H01H19/62
Filed: 1993-05-28
Abstract: A switch actuator for a pivotally mounted gate safety circuit. The actuator has a shaft which is rotatable about its longitudinal axis, the shaft being aligned with a hinge axis of the safety gate. A cam supported by the shaft defines a cam surface against which a switch actuating plunger bears. The plunger is received within a recess defined by the cam surface when the safety gate is closed but is lifted out of that recess when the safety gate is opened. To enable adjustment of the position of the cam surface recess, the cam surface is defined by two relatively displaceable cam parts, displacement of the cam parts adjusting the circumferential position and width of the recess. <IMAGE>
Patent GB-949053-A (GB)
Abstract: 949,053. Chucks. W. & T. AVERY Ltd. July 11, 1960 [July 17, 1959], No. 24052/60. Heading B3B. A chuck for balancing [machines comprises closing means operated resiliently to effect clamping of a workpiece and a non-rotating release device controlled independently of the closing means, switching means preventing rotation of the driving spindle during operation of the release device. A base-plate 11 is provided with supports 30 for the workpiece 20 and jaw members 13 slidable in radial slots in the plate 11 have various attachments 18 for gripping the workpiece. The base-plate has a boss which is bolted to a spindle 6 which is rotated from a drive 7. The inner ends 13a of the jaws are bevelled and engage the tapered end of a collar 14 which is drawn downwards by disc springs 15 operating through an adjustable bolt 16 to clamp the work. The work is released by a non-rotating floating cylinder 22 surrounding the boss of the member 11 and having a pneumatically or hydraulically operated piston 25 which operates through pins 27 to lift the collar 14. An arrangement with a horizontal spindle is described.
Patent GB-2298878-A (GB)
Title: Dispensing unit for a toilet cistern
Inventor: PITMAN ROGER
IPC: E03D9/03
Filed: 1995-03-14
Abstract: A dispensing unit 11 for a cistern subject to periodic flushing includes: an outlet from the unit through which material to be dispensed is supplied; a reservoir 12 of material to be dispensed in discrete doses; and a dispensing shuttle 20 which acts to dispense a predetermined measure of material from the reservoir to the outlet each time a flushing action occurs. Typically the dispensing shuttle contains a chamber 23 corresponding in volume to the predetermined measure and is displaceable between a first position wherein it is in communication with the reservoir and isolated from the outlet, and a second position where the chamber is isolated from the reservoir and communicates with the outlet. Preferably the shuttle is connected to a container which has been filled, in whole or in part, by water supplied from the cistern but is not immersed in water in the cistern acts to draw the shuttle from the first to the second position to enable material in the chamber to flow into the container; the container containing a bleed means whereby liquid in the container can pass out of the container into the cistern.
Patent GB-2287667-A (GB)
Title: Cyclone inlet
Inventor: LANGE NEVILLE ERNEST
IPC: B04C11/00
Filed: 1995-03-15
Abstract: A cyclone inlet unit comprising three vanes (21) defining three inlet orifices (33). The vanes are shaped so that the orifices are each of gradually decreasing cross-sectional area towards the interior of the unit. The vanes may be integrally formed with a plate-like end portion. Alternatively the vanes are detachably secured and their positions adjustable. <IMAGE>