baber/WOPTO huggingface dataset:
Patent GB-2196711-A (GB)
Title: Electrically insulated pipe joint
Inventor: GRUIJTER DR WILHELMUS ANGUSTIN
IPC: F16L25/03
Filed: 1987-04-21
Abstract: An electrically insulated pipe joint comprises two similar tubular parts, the first having a bell, in which a flange of the second is received. A first insulating gasket lies between the front face of the flange and the flat bottom of the bell, and a second lies between the back face of the flange, the outer wall of the second tubular part and the inner wall of the bell. The bottom of the bell joins the cylindrical inner surface of the tubular part through a curved surface, which joining the first part through a shoulder. The first insulating gasket has a cylindrical appendix and the outer surface of the first gasket lies fittingly against the bottom of the bell, the curved surface and the first cylindrical surface part, and the inner diameter of the first gasket being equel to the inner diameter of the second cylindrical surface part of the first tubular part. The second gasket at the end directed towards the flange has a greatest diameter at least equal to the inner diameter of the ball and having a recess in the corresponding end face, in which the flange is fittingly received. The other end projects out of the bell and its outer surface goes from the end with the greatest diameter towards the other end in an S-shaped manner.
Patent GB-2190943-A (GB)
Title: Gallery lining machine for use in driving operations in mines
Inventor: HEISTERKAMP HELMUT
IPC: E21D11/40
Filed: 1987-05-15
Abstract: In a gallery lining machine (3) for use in driving operations in mines and having a machine chassis frame (5) which can travel along an overhead monorail track (4), a working platform (6) linked to the machine chassis frame (5), a lining setting device (7), and optionally a boring unit and/or a backfilling manipulator, the lining time requirements can be substantially reduced by ensuring that the working platform (6) on the one hand and the lining setting device (7) on the other hand can be manipulated the one independently of the other, because the working platform (6) can still be used whilst the lining setting device (7) is engaged in setting copings. <IMAGE>
Patent GB-2193477-A (GB)
Title: Apparatus for turning articles over
Inventor: COOMBS JOHN ANTHONY
IPC: B65G47/248
Filed: 1987-06-09
Abstract: Apparatus for turning articles such as barrels 13 through an angle, e.g. 90 DEG , comprises in-feed and turning sections 10, 11 in the former of which the driving run of a chain 14 drives the articles up slipways 12 to the turning section 11. Section 11 incorporates spirally extending guides 18, 19, 20 which press resiliently on the barrel to confine the barrel closely. The lower and upper ends of the chain extend about vertical and horizontal chain wheels 15 and 22 respectively and the guides are arranged to turn the barrels about the driving run of the chain, so that the chain remains in driving contact with the barrels throughout. Chain wheel 22 is driven by a motor 24 through a gearbox 25. <IMAGE>
Patent GB-2209352-A (GB)
Title: Non-woven sheet material which includes jute fibres and thermoplastic material
Inventor: ROWAN ROBERT MICHAEL
IPC: D04H1/60
Filed: 1987-09-04
Abstract: Non-woven sheet material (2) comprising jute fibres and auxiliary material (4) for imparting strength and rigidity to the sheet material, the auxiliary material (4) having been subjected to heat and pressure so that the auxiliary material binds the jute fibres together and forms the sheet material, and the jute fibres being such that they form the major component of the sheet material. The auxiliary material may be polyester bicomponent fibres, polypropylene fibres or a polyvinyl acrylic powder or liquid. A polypropylene fibre layer may be laminated to two corded jute layers by hot calendering. The jute layer may be reinforced by warp stitching (6) and by a weft array secured by the warp stitching. <IMAGE>
Patent GB-2197114-A (GB)
Title: Disposal of toxic wastes
Inventor: BURTON WILLIAM ROBERT
IPC: G21F9/24
Filed: 1987-11-04
Abstract: Toxic e.g. radioactive liquor is disposed down a pipe in a borehole 20 or 20a to a zone under the sea 11 or land 10 and displaces ground water into the space between the pipe and the borehole wall. Non- toxic liquid is then fed to the toxic liquor to react with the liquor to reduce the mobility of at least the more toxic part of the liquor. The non-toxic liquid may be an alkali solution or an organic gelling agent or a solution of alkali and sodium silicate, the non-toxic liquid may fall through the liquor. In some cases the non- toxic liquid is fed first to the zone. In another arrangement the liquor is mixed with a gelling agent and then fed to the zone and slowly reacts with the agent to increase the viscosity of the mixture. <IMAGE>
Patent GB-2211446-A (GB)
Title: Offshore well leg internal cutting apparatus
Inventor: ROBERTS BILL J
IPC: E21B4/02
Filed: 1988-03-25
Abstract: The apparatus is lowered into a tubular member which extends downwardly within the earth's surface and which has a cutting tool 40 or flame cutter adapted to be moved pivotably outwardly without horizontal movement into engagement with the member and rotated, when so engaged, in order to sever the member, and to be moved inwardly to permit the apparatus to be raised from the tubular member. The apparatus has upper and lower hydraulically operated radially movable shoes 36 for gripping the member interior to hold the apparatus. Tool rotation is by a hydraulic motor in a housing 32 rotatable on a central shaft 30 supported by a cable during lowering and raising. The tool is pivoted by hydraulic power and is spring or hydraulically retracted. <IMAGE>
Patent GB-2203856-A (GB)
Title: Optical cable manufacture
Inventor: SPEDDING STEPHEN THOMAS
IPC: G02B6/44
Filed: 1988-04-14
Abstract: In the manufacture of an optical cable having loosely housed in a bore of the cable a resiliently set undulating optical fibre element, the resiliently set undulating optical fibre element 1 travels in the direction of its length with its major transverse axes horizontal and a tape 4 with its major surfaces horizontal travels adjacent to the element. Water- impermeable medium of a grease-like nature is introduced simultaneously to opposite sides of the advancing undulating optical fibre element through ports 11 of a die/nozzle assembly 10 and is caused to flow transversely into the spaces between the smoothly curved undulations of the element by transversely folding the advancing tape around the element and water-impermeable medium until the neighbouring longitudinal edges of the tape overlap or abut to form a closed tube 2. The rate of feed of water-impermeable medium having regard to the speed of the assembly and the cross-sectional area of the bore of the closed tube 2 are such that the tube is filled with greasy water-impermeable medium. <IMAGE>
Patent GB-2218460-A (GB)
Title: Fastening apparatus for securing hinged members
Inventor: JENNER THOMAS
IPC: E05C19/00
Filed: 1988-05-13
Abstract: Fastening apparatus for a door (2) hingedly mounted in a frame (6) comprises two spaced bars (28) fixed to the inner side of the door. One end of each bar (28) is hingedly mounted within a housing (14) mounted on the door frame (6). The free end of each bar (28) can be received within a respective aperture (56) formed in a further housing (44) mounted on the opposite side of the door frame (6) to the housing (14). A shutter plate (58) is arranged to shutter the apertures (56) whereby the free ends of the bars (28) are retained within the further housing (44) such that opening of the door (2) is not possible. To open the door, it is only necessary to move the shutter plate (58) by way of a key (62), whereby the bars (28) follow the hinged movement of the door. <IMAGE>
Patent GB-2208207-A (GB)
Title: Ozone cracking catalyst
Inventor: TATSUSHIMA MASARU
IPC: B01J23/34
Filed: 1988-07-04
Abstract: An ozone cracking catalyst which comprises active manganese oxide carried on a ceramic fiber aggregate such as to provide more than 0.02 cc/g of micropores 10 to 200 nm (100-2000 Angstrom units) in diameter, the ceramic fiber aggregate being composed of walls having vacant pores larger than 500 nm (5000 Angstrom units) in diameter in an amount of more than 0.1 cc/g. Treatment of a manganese nitrate- impregnated body with ammonia gives improved catalyst stability.
Patent GB-2222570-A (GB)
Title: Carbonated beverage container
Inventor: BYRNE WILLIAM JOHN
IPC: B65B3/04
Filed: 1988-09-12
Abstract: A method of packaging a beverage and a package structure has a cylindrical tube 1 over an end 3 of which is located a partition wall 2 having a restricted orifice 6. A closure wall 7 is located over the partition wall 2 and both walls are sealed, for example by crimping, to the rim of the tube 1. A primary chamber 4 is formed within the tube and a secondary chamber 8 is formed between the partition wall 2 and closure wall 7 which chambers communicate through the orifice 6. Chamber 4 is charged with beverage 11 containing gas in solution and sealed with an end wall 12 crimped to the rim 9 of the tube 1. Prior to sealing the chamber 9 is dosed with liquid nitrogen or carbon dioxide so that headspace 13 in that chamber is pressurised. The package adjusts to a state of equilibrium in which beverage flows into the secondary chamber 8 to form a headspace 14 therein. Upon opening of the package with a pull tag 15 a pressure differential between the headspace 14 and 13 causes beverage and/or gas in the chamber 8 to be ejected through the orifice 6 into the beverage 11 and thereby gas in solution in the beverage to be liberated and form, or assist in the formation of, a head of froth on the beverage.
Patent GB-2223974-A (GB)
Title: Flooring grids
Inventor: TRUBSHAWE B C
IPC: E04F15/06
Filed: 1988-09-15
Abstract: Open grid flooring is produced by forge-welding notched transverse bars (15, 16) to notched load-bearing bars (10, 12). During forge-welding, the transverse bars are supported against deformation at positions between the load-bearing bars. <IMAGE>
Patent GB-2211800-A (GB)
Title: Combined bicycle seat pump, spring, pneumatic and hydraulic suspension
Inventor: VAN WILDER CHRISTIAN
IPC: F04B33/00
Filed: 1988-10-17
Abstract: A combined seat pump/suspension assembly which can be used in lieu of conventional seat post of a bicycle simply by inserting it in the main frame seat post. A main tube 3 houses a tube 4, associated with pistons 7 and 12 and a spring 19 assure both suspension and tire inflating means. In the pumping mode, movement of a locking device 26 allows full up and down movement of the saddle post 6. The latter is provided with a standard cup washer as in a conventional pump, and an inflation connector can be connected between the saddle tube valve 29 and a tyre. Disconnection of the inflation connector closes valve 29, and the system can then be pressurised to the required resilience by pumping the saddle. Re-engagement of the device 26 then restricts movement of the saddle to within the limits required of the resilient suspension. The saddle tube contains a floating piston 12 having passageways for the passage of air. The saddle tube may also contain oil 20 to provide damping. <IMAGE>
Patent GB-2237595-A (GB)
Title: Sliding door assembly
Inventor: FORD HENRY
IPC: B60J5/06
Filed: 1989-11-01
Abstract: A sliding door assembly 2 is provided on a vehicle body or trailer 1, said assembly including four doors, 2a, 2b, 2c, 2d held in tight abutting relationship with one another by an expansible and retractable pillar 3 located at the rear of the vehicle. The pillar 3 is mechanically operated by a handwheel 4 underneath the vehicle body 1, to move the pillar into an extended or retracted state. Pillar 3 has an outer channel section member and inner channel section member; the pillar is expanded or retracted by the threaded rod being rotated by handwheel 4 in order to extend and contract the scissor linkages in unison. Pillar 3 may also be extended and contracted pneumatically. <IMAGE>
Patent GB-2226371-A (GB)
Title: Cylinder head gasket
Inventor: NICHOLSON TERENCE PETER
IPC: F16J15/08
Filed: 1989-12-22
Abstract: A metal gasket comprises perforated metal sheets (11, 13) corrugated around at least one aperture and secured by an intervening layer (15) of adhesive extending across the corrugations. The peaks of the corrugations have elastomer layers (23). The corrugations preferably have a profile providing a hard right-angled junction between the corrugation and the plane sheet, and a relatively shallow intervening arc, causing the corrugation to collapse with a rolling action under compression. In a cylinder head gasket, the cylinder apertures are not provided with corrugations but shims (21) are provided between the gasket sheets around the cylinder apertures. The gaskets have been found to provide exceptionally reliable sealing in adverse circumstances.
Patent GB-2240990-A (GB)
Title: Axminster carpet loom
Inventor: COATES HERBERT
IPC: D03D39/08
Filed: 1990-02-02
Abstract: In order to detect yarn take up by grippers (12) in a more reliable manner than hitherto, a housing (20) provides separate channels through which the tips of respective grippers (12) pass as they move between yarn take up and insertion positions. Respective photoreceptors (34) are associated with each channel and a light source (24) illuminates the channels as the tips of the gripper (12) pass therethrough. If the gripper tips are carrying yarn (36) they draw it after them through the respective channels and this blocks light transmission between the source (24) and the relevant receptor (34). Thus the presence or absence of yard (36) at each position can be detected and by use of microprocessing control means the loom can be stopped whenever the overall frequency of missing yarn exceeds a pre-set threshold, or specific omission by individual grippers (12) is excessive. <IMAGE>
Patent GB-2247544-A (GB)
Title: Floating point data formats conversion
Inventor: SAINI AVTAR
IPC: G06F5/00
Filed: 1990-08-30
Abstract: An apparatus and method for converting the format of the exponent portion of a biased floating point number in a microprocessor, allows a conversion to be performed as the data is being loaded. Decoding circuitry 36 first determines when floating point data is about to be loaded. A constant, which corresponds to the type of conversion to be performed, is then generated from a ROM 48. The data and constant are added 60 and the result, representing the converted exponent is stored in an exponent resister within one clock period. <IMAGE>
Patent GB-2238362-A (GB)
Title: Hydraulic apparatus
Inventor: KOPACIN BORIS
IPC: F15B7/00
Filed: 1990-12-24
Abstract: Master and slave cylinders (10, 45) are provided interconnected by a conduit (46). The master cylinder (10) includes a piston (19) movable in a cylinder (11) which defines a pressure chamber (82) arranged to be placed under pressure by the piston (19) to operate the slave cylinder. To reduce the space required by the master cylinder, a reservoir (83) for the master cylinder is defined partly by the piston (19) and partly by the cylinder (11).
Patent GB-2244786-A (GB)
Title: A dual-mass flywheel
Inventor: K HNE VIKTOR
IPC: F16F15/134
Filed: 1991-04-29
Abstract: The dual-mass flywheel is for installation between an internal combustion engine and a gear unit and comprises a first flywheel mass (1) assigned to the crankshaft of the engine, which, when seen in longitudinal section, has the shape of a radially inwardly open U, the arms of which respectively form two lateral discs (2) and (3), a second mass (4) assigned to the gear unit, which, when seen in longitudinal section, has the shape of a U open towards the periphery, one arm (5) of which engages as a central disc between the two lateral discs; both masses being rotatable with respect to one another to a limited extent by the interposition of elastic members supported at least indirectly firstly on the first mass and secondly on the central disc, and a damping appliance comprising variable-volume chambers is connected between the two masses and parallel to the elastic members. The central disc (5) is constructed from three component discs (10 to 12) concentric to one another, these discs comprise lugs which form interacting contact surfaces, and the elastic members are supported at both ends respectively on an outer component disc (11 or 12). A friction slip coupling is provided in series between the first flywheel mass (1) and the central disc (5). <IMAGE>
Patent GB-2253877-A (GB)
Title: Handrail system
Inventor: HERBERT MICHAEL
IPC: E04G21/32
Filed: 1991-05-31
Abstract: A handrail post (1) adapted to form part of a handrail system (2), comprises an upright member (5) provided with a securing or supporting means (6, 7) for handrails in the form of wire ropes (4) adapted to be strung transversely between adjacent posts (1), and a mounting plate (8) attached directly or indirectly to the upright member (5) and incorporating screw clamping means (10, 12) whereby the plate (8) and hence the post (1), is attachable to support structure of the building (3) e.g. a flange (13) of an upright column (9) or horizontal beam (15), at any desired location along the support structure. Horizontal member 14 may be omitted, or may be of adjustable length. Plate 8 may be vertical (as shown) or horizontal for connection to a horizontal beam. <IMAGE>
Patent GB-2245901-A (GB)
Title: Preparation of conjugated dienes
Inventor: HUDSON IAN DAVID
IPC: C07C1/24
Filed: 1991-05-31
Abstract: A process for the preparation of a conjugated diene from the corresponding carbonyl compound having the same number of carbon atoms by dehydration at a temperature of 300 DEG  to 450 DEG C uses a catalyst comprising aluminium phosphate having the cristobalite structure. This catalyst is superior to aluminium phosphate having the tridymite structure in the dehydration of carbonyl compounds and has advantages over boron phosphate catalysts. Using the process, isoprene may be prepared from 2- methyl butanal and/or methyl isopropyl ketone in high yields. Unexpectedly aluminium phosphate having the cristobalite structure is markedly superior to boron phosphate in converting methyl isopropyl ketone, which is an intermediate product formed in appreciable amounts in the dehydration of 2. methyl butanal to isoprene. This superiority significantly improves the process economics of the conversion reaction of 2- methyl butanal to isoprene.
Patent GB-2256702-A (GB)
Title: Solar panel
Inventor: BOWERS FRANK
IPC: F24S10/80
Filed: 1991-06-12
Abstract: A solar panel comprises an impermeable substrate supporting a permeable composite mass. The substrate may be a plastics sheet or treated concrete. The mass may be of rubber particles bonded to one another at their touching points. <IMAGE>
Patent GB-2258236-A (GB)
Title: Molecular synthesis
Inventor: WILLIAMS DAVID A
IPC: H01L23/498
Filed: 1991-07-30
Abstract: Molecular synthesis is carried out on a substrate (1) provided with a nanofabricated surface structure (2, 3) typically formed by means of a scanning tunneling microscope. The resulting surface structure acts as a molecular template and components parts of a molecular structure are moved to the template e.g. by control potentials applied to surface electrodes (4) formed by electron beam lithography on the substrate. A long molecular chain can be assembled using the substrate to form the chain from a plurality of component molecular parts. Alternatively, the substrate, with the assembled molecular chain, can be used as a catalyst. <IMAGE>
Patent GB-2264994-A (GB)
Title: Flow cut-off valve
Inventor: POTTS KENNETH GORDON
IPC: F16K31/22
Filed: 1992-03-10
Abstract: A flow cut-off valve inserted between a container and suction pump in a liquid handling system (not shown) ensures that no gas or air can be drawn into the pump when the container empties. A float 2 is buoyant in the liquid so that, when the container empties, the float drops to seal the outlet port 4 and the sealing is assisted by magnetic clamping mechanism 3 and 6 or by some other physical means. The seal-assist mechanism may be over-ridden to raise the float. <IMAGE>
Patent GB-2266992-A (GB)
Title: Apparatus for loading semi-conductor wafers
Inventor: BRANCHER CARL DAVID MONNINGTON
IPC: B65G49/07
Filed: 1992-05-06
Abstract: This invention relates to apparatus for loading or unloading a semi-conductor wafer into and out of a processing chamber 11. The wafer loading mechanism 10 is rigidly attached to the front of the process chamber 11 and includes a frame 12 on which is supported a carriage 13 which in turn carries a wafer spatula 14 and a carriage drive mechanism generally indicated at 15. The frame 12 is open top and bottom so that the cassette 16 can be elevated, and lowered, through the frame by an elevator mechanism 17. Using this arrangement the spatula 14 can pick up a wafer from the cassette 16, which can then be lowered out of the way allowing the spatula 14 access to the process chamber 11. The wafer may be aligned on the spatula by means of a rotatable chuck and a video camera and control means can be provided. <IMAGE>
Patent GB-2268200-A (GB)
Title: Attaching hollow elements to framing members
Inventor: FRAINE ROY LESLIE
IPC: E04C2/54
Filed: 1992-07-01
Abstract: Is a method of attaching ridged U.P.V.C. tongue and grooved cladding or twin or triple walled polycarbonate sheet at almost any point on their inner membrane wall surface, without penetrating the outer membrane wall. Making them more versatile in their use. Particularly in the case of the ridged U.P.V.C. tongue and grooved cladding, it enables it to be used as a walling material for free standing structures, not just as a cladding medium for existing walls. Also repairs to a damaged length of ridged U.P.V.C. tongue and grooved cladding used in this way can easily be carried out by drilling out the pop rivets in the damaged length, sliding it out, then sliding in a replacement length and attaching in the methods described in claims 1-7. Hollow cladding elements 22 are attached to framing members 20 by pop rivets 17 which do not pass right through the elements 22. Panels made up in this way can be used with other like panels to make up larger structures. Washers 13 are located behind pro-drilled holes in the elements 22 using probes 19, and the rivets pass through the washers. The elements may be of UPVC or polycarbonate. <IMAGE>
Patent GB-2258363-A (GB)
Title: Multichannel digital-signal reproducing apparatus
Inventor: KASHIDA MOTOKAZU
IPC: G11B20/12
Filed: 1992-09-11
Abstract: In apparatus comprising n(n>/=, 2) heads H for reproducing digital information from a recording medium having a plurality of parallel tracks and digital information recorded thereon as n-channel digital signals, the information in the reproduced signals is stored in a storage means 204 and discriminating data is obtained for determining which of the n-channel digital signals reproduced correspond to the reproducing heads. The address used for accessing the storage means 204 for performing a predetermined processing of the digital signals is shifted in accordance with the discrimination data. <IMAGE>
Patent GB-2273538-A (GB)
Title: Rockbolt tensioning
Inventor: HOLLIS IAN
IPC: F16B31/02
Filed: 1992-12-17
Abstract: A rockbolt (not shown) for anchoring in a borehole and then tensioning it, has a nut (8d) screwed on its projecting end to force the nut (8d) against the surface in which the borehole is provided and cause tensioning of the rockbolt. Initially, the nut (8d) cannot be run down the rockbolt owing to provision of a disc (22) which is seated in a recess (21) in the outer end of the nut (8d) and which is only forced out from the recess (21) when the nut (8d) is subject to a predetermined torque greater than that required for breaking a resin cartridge (not shown) at the inner end of the borehole. Holding of the disk in the recess is achieved by deformations (24) of the nut resulting in the perimeter of the disk being frictionally restrained.   <IMAGE>