baber/WOPTO huggingface dataset:
Patent GB-2061464-A (GB)
Title: Ball Valves
IPC: F16K5/06
Filed: 1980-09-25
Abstract: A top opening ball valve having a substantially spherical ball 4, seats 5, 6 and thrust rings 10, 11 urged by springs 12, 13 to press the valve seat against the ball is characterised in that the top opening is of sufficient width to allow removal of the ball and parts as a unit without substantially further compressing the springs 12, 13. The radius r of the opening 7 is at least as great as the distance A from the centre of the sphere 4 to the surfaces of the seats furthest from the ball. <IMAGE>
Patent GB-2087450-A (GB)
Title: Faced Building Blocks
IPC: E04C1/40
Filed: 1980-11-10
Abstract: The facing of thermal insulating building blocks is carried out before the blocks are built into a wall rather than afterwards. This avoids the need for skilled labour which would otherwise be required at the building site to achieve the desired results in facing the wall after it has been built.
Patent GB-2068017-A (GB)
Title: Method for controlling end effect on anodes used for cathodic protection and other applications
IPC: C23F13/02
Filed: 1981-01-15
Abstract: 'Necking' of elongated cathodic protection anodes (1) is obviated or reduced by means of a non- conductive shield (6, 7, 8) placed around the periphery of the anode, but spaced away from the surface of the anode at the end at which it is connected to a conductor cable. The gap between the shield and the electrode surface is generally in the range of 15-30% of the radius of curvature of the electrode surface. The shield may extend over, but be spaced away from, the end surface of the electrode also. <IMAGE>
Patent GB-2079358-A (GB)
Title: Externally clad tank and connecting member therefor
IPC: B65D90/06
Filed: 1981-05-18
Abstract: A tank is constructed from panels (10) joined edge-to-edge through out- turned abutting flanges (12). External cladding panels 18 are joined edge-to- edge by T-shaped connecting members (20), with co-operating T-shaped fastening members (30), the leg (28) of the fastening member fitting into the bifurcate leg (22) of the connecting member. An offset flange (34) projects from the rear of the connecting member to be fastened to the neighbouring flanges (12) of the tank panels (10).
Patent GB-2100410-A (GB)
Title: Safety systems for gas water heaters
IPC: F23N5/10
Filed: 1981-06-06
Abstract: In a gas water heater with a thermocouple (7) sensitive to the heat of a pilot flame (2) and operative to cut-off the gas supply to the heater if pilot flame (2) is extinguished, there is provided a safety system having a pressure-sensitive valve (11) fitted to a passage (8) in the main waterway whereby, when the pressure in passage (8) exceeds a certain level, water is vented and directed by duct (12) onto thermocouple (7). This rapidly quenches the thermocouple and thereby turns off the gas supply more quickly than conventional interruptors. The operating pressure of valve (11) is adjustable by moving screw (16) so as to vary the compression of spring (15). <IMAGE>
Patent GB-2080593-A (GB)
Title: Monitoring circuit for checking the connections of liquid crystal displays
IPC: H05K1/02
Filed: 1981-07-02
Abstract: In a monitoring circuit for checking the connections of liquid crystal displays and their segment drivers, each segment (3) is connected, e.g. via a conducting elastomer (4), through first lead (5) directly to the driver circuit for normal control and simultaneously via second lead (6) to a checking condenser (9). When segment (11) is activated the condenser (9) in loop (i) is charged and discharged by the control module (8), e.g. a microprocessor in multiplex with the normal activation signals, the condenser current being apparent as a potential drop across resistor 10 for comparison with required values. The circuit may be used in a liquid crystal display in a taximeter. <IMAGE>
Patent GB-2079542-A (GB)
Title: Rotating electrical machine
IPC: H01R39/34
Filed: 1981-07-07
Abstract: The machine has the electrical supply leads (24) of the rotor winding (19) retained by means of cable holders (25,26) serving also as seals for a rotor bearing (16). The cable holders are mounted rigidly on and concentrically of the rotor shaft (17) so that a flange (27) of one holder (25) presses the leads against a facing surface of the rotor and also provides a flange region (28) sealing the adjacent side of the bearing and so that the other holder (26) presses the leads against the shaft on the opposite side of the bearing at the inner periphery of the holder; the latter being shaped also to serve as a centrifuging disc to keep out dirt from the respective side of the bearing. <IMAGE>
Patent GB-2079820-A (GB)
Title: Method and apparatus for permanently locking open a well flow control device
IPC: E21B34/00
Filed: 1981-07-13
Abstract: A flow control device, for instance a ball valve, that includes a locking sleeve (178, 142, 146) is locked in the permanently open position by apparatus comprising a cylindrical sleeve 207, a piston 215 slidable with respect to the sleeve, lock means 210 and 211 carried by the cylindrical sleeve, and securing means 209 such as a shear pin interconnecting the sleeve 207, the piston 215 and the locking means 210 and 211; the securing means 209 being disconnected in sequence to cause the locking means 211 to engage with surface 178A' and thus urge the locking sleeve 178 in a direction to lock the valve permanently open. <IMAGE>
Patent GB-2084268-A (GB)
Title: Force-limiting clutch, especially for agricultural pick-up balers
IPC: A01F15/08
Filed: 1981-09-08
Abstract: A force-limiting clutch is described for establishing a frictional connection between a flywheel and a main drive shaft of an agricultural pick-up baler. Swingable clutch members (25) are mounted on a clutch supporting disc (16) so that they are able to pivot about respective axes (28) which are spaced from and parallel to that of the drive shaft, and are pressed by means of pressure springs (31) against an inner face (18) of the driving flywheel. The swingable clutch members (25) are arranged and formed such that on the occurrence of an overload moment they pivot in the direction of rotation so that their friction surfaces (27) disengage from the inner face (18) of the flywheel. Through this arrangement, very strong disengagement forces result in a friction pair, so that the force-limiting clutch responds with only a slight overload moment even in the case of rusted-up friction facings (26) on the face rim of the clutch (18). The clutch is in series with a slip coupling (Fig. 1). <IMAGE>
Patent GB-2116123-A (GB)
Title: Slipway for loads
Inventor: WATSON WILLIAM GEORGE
IPC: B63C3/08
Filed: 1981-11-24
Abstract: A slipway system for loads, particularly, boats yachts or like vessels includes a support surface comprising a plurality of separate support surface sections or panels (2) connected end to end by connection means (3). The panels (2) can have a mesh-like formation or comprise side-by-side elements or members which can be arranged either transversely of the length of the panels or lengthwise thereof. Rollers or other forms of load guide means can be provided. The rollers can comprise a cylindrical form or a diabolo form. Alternatively the guide means can be formed by discs or by brush like arrangements. <IMAGE>
Patent GB-2113154-A (GB)
Title: Improvements in and relating to the disposal of waste materials
Inventor: JAMES BRIAN ETHERINGTON
IPC: B09B1/00
Filed: 1982-01-13
Abstract: An unmanned flexible dumb barge (2) full of waste material such as sewage or effluent is towed by a powered vessel to a suitable location, whereupon a discharge valve (10) is opened by remote control, such as a radio signal. The waste material is then automatically discharged from the dumb barge by hydraulic pressure due to movement of the towed barge through the water mass (12). A services pontoon (18) is preferably provided behind the barge (2) and carries pneumatic equipment for operating the valve (10) in response to a radio signal from a transmitter (20) on the towing vessel (8). The portion (18) preferably also includes dispersal baffles (24) below water level and an indicator (26) above water level to signal the state of the discharge valve (10). <IMAGE>
Patent GB-2122873-A (GB)
Title: Article of jewellery
Inventor: FISHER DAVID CLIVE
IPC: A44C5/22
Filed: 1982-02-25
Abstract: An article of jewellery such as a necklace comprises a length of chain whose ends (10, 12) are secured to sleeve members (14, 16) through which the chain passes so that two strands (20, 22) are formed whose lengths can be varied by sliding the sleeve members (14, 16) along the chain. <IMAGE>
Patent GB-2094535-A (GB)
Title: Display frame
IPC: A47G1/06
Filed: 1982-03-03
Abstract: A rectangular display frame has two parallel upper side members 4 defining a slot 6 between them, through which an advertising board can be removably inserted. The side members 4 are joined to the upright sides 11 by L-shaped cleats 9 fitting within channels 8. The sides 10, 11 without a slot may be made from a single length of extruded aluminium partly cut and bent up at the corners. <IMAGE>
Patent GB-2117326-A (GB)
Title: Oil containment boom
Inventor: MILLIGAN DONALD LINDSAY
IPC: E02B15/04
Filed: 1982-03-26
Abstract: A boom (1) having at least one partially enclosed chamber (2C) defined by walls of a depending skirt (2) and/or pockets (6) having an opening (5, 7) or openings in a normally upper region and through which opening(s) water may enter said chamber (2C) and/or pockets (6) in the normal position of use of the boom so as to oppose upward displacements of the boom (1). The pockets may alternate on either skirt side. The skirt bottom has a tension wire or ballast. <IMAGE>
Patent GB-2096941-A (GB)
Title: Semi-permeable membrane
IPC: A23J3/00
Filed: 1982-04-20
Abstract: A block terpolymer formed of 82 to 93% by weight acrylonitrile, 6 to 15% by weight methylmethacrylate and 1 to 3% by weight of the sodium salt of vinylsulphonic acid forms a semi-permeable membrane suitable for use in the concentration of solutions of proteins, having a long useful working life and being capable of storage in a dry state.
Patent GB-2099544-A (GB)
Title: Fluid shock absorber valving
IPC: B61K7/02
Filed: 1982-04-27
Abstract: A shock absorber comprises a cylinder and a piston rod passing through at least one end of the cylinder. A piston unit is mounted on the piston rod and divides the cavity within the cylinder into two working chambers. A damping fluid is contained within the cylinder. The working chambers are interconnected across the piston unit by first and second branch flow passages arranged in parallel. First and second flow valves are associated with these first and second flow passages, respectively, and operate to dampen movement of the piston rod in at least one direction in dependency on the velocity of movement. The first branch passage flow valve is normally open and closes only when a predetermined velocity of movement is exceeded. The second branch passage flow valve is normally closed and opens only when the pressure differential between the working chambers exceeds a predetermined value. Closing of the first branch passage flow valve increases the damping effect. Opening of the second branch passage flow valve, which preferably occurs approximately at the same rod speed that the first valve closes, provides a further gradual increase in damping force upon further increase in rod velocity.
Patent GB-2103896-A (GB)
Title: Battery charger
Inventor: PEREI ANTHONY EDWARD
IPC: H02J7/00
Filed: 1982-06-01
Abstract: A battery is charged via a thyristor TH1 which is turned on when a sensor Ic1 detects that the voltage across the charger output is less than the post charge off-load voltage of the battery, and is off when the voltage across the output is above the on charge open unit full charge battery voltage. A precision voltage regulator is used to form the sensor Ic1 and compares the voltage across the output with an internal reference. Resistor R6 and R7 are connected to provide the hysteresis between the ON/OFF threshold level, levels of about 12.2 volts and 13.7 volts being used when charging a 12 volt lead- acid battery. LED 2 is energised at a low level to indicate battery charging, at an intermediate level to indicate an open or short circuit at the output, and at a high level to indicate a reverse- connected battery.   <IMAGE>
Patent GB-2100846-A (GB)
Title: Fragmentation head for an explosive device
Inventor: RENSON MICHEL
IPC: F42B12/22
Filed: 1982-06-02
Abstract: A hollow controlled fragmentation head for an explosive device, comprises a double-walled cage (10) whose outer wall is constituted by a helix of wire (4) formed at regular intervals with notches (5) which extend over a fraction of the wire thickness and whose inner wall is a continuous wall (2) bounding a chamber adapted to receive an explosive charge, the outer and inner walls enclosing between them a plurality of shrapnel forming elements (3), e.g. an intermediate layer of steel balls which may be partially received in the gaps between turns of the wire (4]. <IMAGE>
Patent GB-2106315-A (GB)
Title: >Manufacture of integrated circuits
Inventor: HEIMBIGNER GARY LEE
IPC: H01L21/285
Filed: 1982-07-13
Abstract: A VLSI device is manufactured on monocrystalline silicon and comprises FET's (S,G,D), polysilicon connections 102 and diffused connections 101. The silicon is oxidized to form a first oxide layer which is covered with a first nitride layer. The latter is selectively removed to leave FET and diffused connection areas 100, 101 masked. Unmasked areas are oxidized to field oxide and doped polysilicon is applied and oxidized to a second oxide layer which is covered with a second nitride layer. This is oxidized to an oxynitride layer which is doped. Masking and etching steps remove the oxynitride and second nitride except where there are to be polysilicon contacts 103 and remove the polysilicon except for the lines 102 including the gate electrodes G and then remove the first nitride and oxide except for the FET area 405 and diffused connection contact area 406. The device is completed by batch removal steps and applying conducting lines to the polysilicon and diffused contact areas Pc, Nc. The line 101 is doped by driving in the dopant from the silicon oxynitride layer. <IMAGE>
Patent GB-2130077-A (GB)
Title: Improvements in or relating to pipe supports
Inventor: NICHOLAS TERRY GEORGE
IPC: F16L3/10
Filed: 1982-10-18
Abstract: A pipe support 100 comprises a mounting member 1 for attachment to a mounting surface, and a support member 2 for supporting a pipe relative to the mounting surface when pivoted from the illustrated position to a position in which the base 103 of the support member 2 overlies the fixing hole 3 in the mounting member 1 and thereby hides the screw fixing 4 therefor from view. <IMAGE>
Patent GB-2115240-A (GB)
Title: A.C. power supply control apparatus
Inventor: FERDMAN ALAN MAURICE
IPC: H05B37/02
Filed: 1982-12-07
Abstract: The power applied from an a.c. supply to one or more loads is controlled by phase-controlling a semiconductor switch such as a Triac so that, in each cycle or half-cycle of the supply waveform, the switch is on for a time dependent upon the amount of power to be applied to the load. Previously the or each switch has been controlled by an analog control device and, particularly where say a large number of loads are to controlled independently, the analog control devices have been controlled in turn by a computer. Herein is disclosed control apparatus wherein a microprocessor based computer system, is able to phase-control a series of load-power control switches directly in the sense that the control is not via an intermediate analog control device. To do this, the central processor unit of the computer system receives into an internal register a series of mask words indicative of switches to be turned on at different stages during each supply cycle or half cycle interspersed with time delay signals for timing out the respective stages. <IMAGE>
Patent GB-2112419-A (GB)
Title: Coated electrical connection elements
Inventor: CHAPELOT RAYMOND
IPC: H01R4/02
Filed: 1982-12-13
Abstract: The contacts of such elements made of highly electrically conductive material have a coating of tin or a tin alloy with a further very thin coating of chromium. The chromium coating preserves solderability whilst maintaining the ductility of the tin coating.
Patent GB-2121956-A (GB)
Title: Cross-section of non-circular filaments
Inventor: BRAND BERNHARD
IPC: G01B11/02
Filed: 1983-05-24
Abstract: The cross-section of a filamentary object, especially an object having a non-circular cross- section, is measured by means of a focussed beam of light 11 which is subjected to a parallel sideways displacement motion within a measuring field 15 in which the object 22 to be measured is positioned. After passage across the field the beam is detected in a detector 17 except when obscured by the object 22 so that the period of obscuration is a measure of the cross-section of object 22 in the direction of displacement of the beam. The displacement motion is carried out from a plurality of different orientations relative to object 22. This may be achieved by securing the optical system on a holder 3 which is rotatably mounted on a part-circular guide 2. Alternatively a plurality of optical systems may be provided each fixed at different orientations relative to the object. <IMAGE>
Patent GB-2146138-A (GB)
Title: Releasably mounting photographic lamp in reflector
Inventor: HENSEL WOLFGANG
IPC: G03B15/03
Filed: 1983-09-06
Abstract: Lamp housing 10 has movable double claws 15, 16 and 17 projecting from end face 12 and operable by a lever 18 through a pivoted linkage to swing in and out for rapid engagement with and release from the rim of opening 14 in a reflector 13. The flash tube or other light source projects from opening 11. Two double claws may be sufficiently secure but three equally- spaced claws (not necessarily double) are preferred. The linkage for simultaneous operation of the three claws is described. <IMAGE>
Patent GB-2127694-A (GB)
Title: Autoclaves
Inventor: BAISDEN PETER GEORGE
IPC: A61L2/07
Filed: 1983-09-22
Abstract: An autoclave (10) has an inner chamber (11) has an outer chamber defined by annular jackets (12). In order to provide venting for the inner chamber (11) when pressure inside the inner chamber drops to near atmospheric pressure, vent and steam inlet valve assemblies (22) are provided. The vent and steam inlet valve assemblies comprise a steam inlet (24), a vent hole (29), and an outlet into the chamber (11). Movable in the assembly is a valve member (25) which in the absence of steam pressure, falls under gravity to open the vent hole (29). When steam under pressure is passed through the steam inlet (24) the valve member (25) is lifted to seal the vent. The valve member (25) is maintained the upper position when there is steam under pressure in the inner chamber of the autoclave. A fan (31) is provided to draw air through the chamber (11). <IMAGE>
Patent GB-2132076-A (GB)
Title: Knife for use in tobacco shredding machines
Inventor: ELSNER UWE
IPC: A24B7/00
Filed: 1983-12-22
Abstract: A plate-like knife 4 for subdividing the leaves of a cake of compacted tobacco leaves in a tobacco shredding machine into elongated shreds has an elongated undulate cutting edge 8. The distance H between successive anti- nodes 8a of the cutting edge, as considered at right angles to the longitudinal direction of the cutting edge, does not exceed one millimeter and the distance L between alternate antinodes 8a, as considered in the longitudinal direction of the cutting edge, is not in excess of ten millimeters. The shreds which are obtained by resorting to such knife have a superior filling power. <IMAGE>
Patent GB-2153516-A (GB)
Title: Glass plate or similar element for the construction of chandeliers
Inventor: GARAVAGLIA ELVISE
IPC: F21V5/06
Filed: 1984-02-02
Abstract: Glass plate or similar element to provide a chandelier, having a lining channel (2) firmly applied to its contour, said lining (2) consisting of a channel (3) in plastic material, with an internal metal core (4). <IMAGE>
Patent GB-2135859-A (GB)
Title: Picture size control circuit
Inventor: HAFERL PETER EDUARD
IPC: H04N3/223
Filed: 1984-02-15
Abstract: A horizontal deflection circuit (22) periodically applies a horizontal trace voltage to a horizontal deflection winding (LH) for generating horizontal scanning current therein. A modulator circuit (25) is responsive to control signals for varying the horizontal trace voltage to develop concurrent variations in the amplitude of the horizontal scanning current. A side pincushion control signal is applied to the modulator circuit (25) to vary the horizontal trace voltage at a vertical rate for developing variations in the amplitude of the horizontal scanning current that produce side pincushion correction. A horizontal size control signal (at 29) is applied to the modulator circuit (25) to vary the horizontal trace voltage for changing the picture size in the horizontal direction. A vertical deflection circuit (28) generates in a vertical deflection winding (LV) a vertical scanning current having an amplitude that varies with variations in a vertical size control signal for changing the picture size in the vertical direction. <IMAGE>
Patent GB-2141351-A (GB)
Title: Mixing particulate materials
Inventor: MASHAM ROGER DEREK
IPC: B01F5/24
Filed: 1984-06-05
Abstract: A mixing device, includes three rows (71, 72, 73) of chambers, with the chambers, (e.g. 81,82) of each row alternately diverting the particulate material, dropping under gravity through the device, to the left or to the right by the use of an exit aperture (90, 91) at the bottom of each chamber (81, 82) which is displaced to the left or to the right from a position vertically below the mouth (116, 104) of the chamber at the top of the device. The mouth and exit apertures of the chambers of different rows are aligned in such a fashion that on recirculation of at least part of the material by vertical movement thereof from the bottom of the device to the top for a further passage through the device, there is simultaneous movement of material from left to right and from row to row, and from right to left and from row to row. The mixing device comprises two inter-fitting castings, each having vanes (83, 84, 84) projecting from a dividing plate (75, 77), the dividing plates separating the rows, and the vanes defining the chambers. <IMAGE>
Patent GB-2160494-A (GB)
Title: Improvements in or relating to pallets
Inventor: COOPER ALEXANDER
IPC: B65D19/16
Filed: 1984-06-18
Abstract: A pallet is described which comprises a base (2) formed of a plurality of frame members (3) on which is mounted a surface (5) for receiving articles to be stored or transported. The surface (5) is formed of a plurality of frame members (6) and is mounted on the base by a plurality of mounting elements (7). Each corner mounting element (7') has a corner section (7a) which extends beyond the edges of the frame members (6'') forming the surface (5). A corner unit (9) comprising three mutually perpendicular walls (10) is provided at each corner of the pallet (1). In a preferred arrangement, each corner mounting element (7') is mounted on one wall (10') of a respective corner unit (9) so that the other two walls (10'') of the corner unit extend upwardly from the base to define an L-shaped recess (13) between the two walls (10'') and the corner section (7a) of the corner mounting element (7'). Each recess (13) is arranged to receive a respective L-shaped supporting member (14) so that when the four supporting members (14) are each positioned in respective recesses (13) a further pallet can be supported above the pallet on the support members (14). <IMAGE>