baber/WOPTO huggingface dataset:
Patent GB-2022728-A (GB)
Title: Seals
IPC: F16J15/34
Filed: 1979-07-09
Abstract: A bulkhead sealing arrangement for a shaft 10 has an annular housing 20 in two demountable parts 200, 220 one of which is secured to a bulkhead 12 where the shaft passes therethrough. The parts together define an annular cavity 22 the mouth of which opens toward the shaft. An annular sealing element 30 is secured on the shaft to rotate therewith and projects into the annular cavity. The element has a base portion 300 on the shaft from which extends two diverging and deflectable wing portions 304, 306, as seen in a cross-section through the element, that have one or more lips 310-313 for engaging adjacent side surfaces 242, 244 of the annular cavity. The sealing arrangement is for emergency use such that when one side of the bulkhead floods, the water flows past one wing portion to apply pressure engaging the lip or lips of the other wing portion on the adjacent cavity side surface to provide a seal. The sealing element is secured to the shaft by a garter spring 308 seated between the wing portions. <IMAGE>
Patent GB-2026113-A (GB)
Title: Vehicle braking systems
IPC: B60T8/64
Filed: 1979-07-12
Abstract: An anti-skid braking system has individual modulating valves (5, 7), (6, 8) for the brakes of two wheels. The valves are located near the junction of the brake lines, and are controlled as shown in Figure 1b so that the pressure in one circuit cannot rise while it is falling in the other, and so that a pulsed increase in pressure in one circuit is matched by a corresponding increase in the other circuit. The system is also so arranged that the flow resistance in the common line from the master cylinder 1 is at least as great as the resistance between the junction and each brake. <IMAGE>
Patent GB-2028183-A (GB)
Title: Method and apparatus for forming a helical gear pump or motor rotor
IPC: B21K1/12
Filed: 1979-07-30
Abstract: A helical gear pump or motor rotor is formed from a tubular workpiece 11 by feeding the workpiece progressively and bending it to the desired helical gear form. This can be achieved by intermittently and axially feeding the workpiece 11 and pressing it laterally with a deforming member 18 at a location downstream of the position 12 of clamping between intermittent feeds and turns. Alternatively, the workpiece can be fed continuously between first and second pairs of parallel rollers, one pair having its axes angled with respect to those of the other pair, the rollers of a pair having concavities which together form the cross-section of the workpiece. <IMAGE>
Patent GB-2036894-A (GB)
Title: Shift control device for an automatic transmission
IPC: F16H61/02
Filed: 1979-08-24
Abstract: A shift control for an automatic transmission with means to minimize shock during shifts comprises a control circuit having means generating an electric signal according to the running condition of a vehicle, e.g. vehicle speed and engine throttle opening, and controlling logic means generating outputs to select each gear, and means controlling pressure oil supply to the servo unit 12, 19, 24, 25, 26, 27 of each gear. The logic means governs a solenoid valve 320 controlling 1-2 and 3-4 shift valves 220, 250; a solenoid valve 310 controlling 2-3 shift valve 230, and a solenoid valve 300 controlling a shift transition valve 260. When a selector 210 is positioned for forward drive closure of the valve 300 causes build up of pressure in a chamber 263 to displace the valve 260 and thereby regulate the pressure in a chamber 264, this regulated pressure acting through a restriction 266 on the opposite end of the valve. When reverse is selected pressure fluid passes from a passage 107 to a reverse clutch servo 25 through a flow control valve 330, pressure being controlled by a connection to a chamber 265 of the valve 260. <IMAGE>
Patent GB-2033058-A (GB)
Title: A butterfly valve
IPC: F16K1/226
Filed: 1979-10-05
Abstract: In a butterfly valve having a valve casing 1, a valve member 2 centrally mounted in the valve casing, within an elastomeric lining 5 co-operating with the valve member 2 to provide sealing tightness, the peripheral sealing surface 6 of the valve member 2 has the form of part of the surface of a sphere and co-operates with a sealing bead 9 formed on the inside of the lining 5, the bead being narrower than the sealing surface 6 of the valve member 2 and dividing, to extend with clearance around either side of each pivot shaft 3, 4 of the valve member, the bead 9, in the closed position of the valve, lying everywhere within the limits, in the direction of flow through the valve, of the part-spherical surface 6. <IMAGE>
Patent GB-2034667-A (GB)
Title: Sampling Granular Material
IPC: G01N1/20
Filed: 1979-10-31
Abstract: An apparatus for extracting a sample of flowable material as it falls under gravity in a stream includes a sample collector (8) which is moved through the stream rapidly and symmetrically in an arc about an axis located centrally in the stream. The sample collector is discharged by opening a door (16) when it has passed through the stream. <IMAGE>
Patent GB-2043974-A (GB)
Title: Fire detection system
IPC: G08B25/01
Filed: 1979-11-12
Abstract: A monitoring system for detecting fire or other elevated temperature conditions in a plurality of discrete zones Z1, Z2, Z3, etc. comprises a loop box 1 which has two pairs of terminals A and B to each of which is connected one end of a pair of conductors of a linear temperature detector cable passing through each of the discrete zones. Adjacent zones are sectionalised by zone boxes 9, each of which comprises a pair of balanced resistors connected in series in the two conductors respectively. The loop box 1 has a constant current generator 2 which can be connected to either the A or B end of the loop together with a voltage measuring circuit 8, one of two fixed resistors 6 being connected across the two conductors of the loop at the opposite end. A display device 11 shows if the system is operating normally, identifies the nature of any abnormalities and indicates any discrete zone in which there is a short circuit caused by a fire. <IMAGE>
Patent GB-2046855-A (GB)
Title: A disc brake for vehicles
IPC: F16D55/227
Filed: 1980-03-21
Abstract: A vehicle disc brake including a stationary member (1) for securing to a non-rotatable part of the vehicle, a caliper (2) supported on the stationary member (1) to slide in the direction of the axis of a rotable disc, and a pair of friction pads (4, 5) disposed on the opposite sides of the disc and supported on the stationary member to slide in the direction of the axis of the disc has a pad spring (8) which extends between the caliper (2) and the backing plates (4a, 5a) of friction pads (4, 5) for biassing the caliper (2) radially outwards and the friction pads (4, 5) radially inwards with respect to the disc and which also extends between the stationary member (1) and the backing plates (4a, 5a) of the friction pads (4, 5) for biassing the friction pads in the circumferential direction (C) with respect to the disc. <IMAGE>
Patent GB-2072611-A (GB)
Title: Loading and unloading device
IPC: B60P1/54
Filed: 1980-03-27
Abstract: A loading and unloading device for use in association with the load carrying area of a vehicle "V" comprises a base 16 adapted to be positioned between the ground or other surface and a wheel "W" of the vehicle in association with the load carrying area, an upright 11 projecting upwardly from the base, supporting means 30 connecting the upright to the body of the vehicle adjacent the load carrying area, and a load carrying arm 12 attached to the upper end of the upright. The upright is pivotally supported on the base so that it can rotate about its own vertical axis. The load carrying arm is pivotally mounted on the upright so that it can be folded to an inoperative position alongside the upright and is held in the operative position by a brace 18 which may also be folded to be alongside the upright in the inoperative position. The base is provided with locking means 20, 24 to hold the wheel in position. <IMAGE>
Patent GB-2073617-A (GB)
Title: Classification method and apparatus
IPC: B03B11/00
Filed: 1980-04-15
Abstract: In the field of waste reclamation, solid particulate waste material is classified by size and/or density. The solid particulate material is entrained in a liquid stream, typically water and the liquid stream is then injected from a nozzle 19 into a body of the liquid contained in a channel 10 so as to produce a flow of the liquid along the channel. The flow velocity along the channel is less than the injection velocity from the nozzle 19. The channel 10 is shaped as a venturi with a restricted region 14 near the injection nozzle 19 so that the velocity of flow decreases progressively along the channel. Entrained particulate material of varying size or density sinks to the bottom of the channel or floats to the top at different distances along the channel and can then be collected for reclamation. <IMAGE>
Patent GB-2073565-A (GB)
Title: Seed dispensing
IPC: A01C7/16
Filed: 1980-04-15
Abstract: A seed dispensing device 12 for a precision seed drill has a housing 10 providing a seed reservoir 16 from which seeds are selected by a rotary seed selector member having a seed-holding cup. Seed is retained in the cup during the passage ofthe cup from the seed reservoir to a seed outlet by seed retention brush means 22 extending around the housing 10 from the reservoir to the seed outlet 20. Gaps 44 to 54 are provided in the brush means 22 to allow seeds lodged therein to escape and fall back to the seed reservoir. The gaps are wide enough to allow seeds not in the seed cup to fall back while seeds in the cup are retained. The spacing between the gaps is closer in the region of the seed reservoir than in the region of the seed outlet. <IMAGE>
Patent GB-2074503-A (GB)
Title: Printing Plates for Dry Planographic and Method for Preparing Same
IPC: G03F7/075
Filed: 1980-04-25
Abstract: A planographic printing plate having, on one surface of a base plate 1, a layer of an organopolysiloxane composed of untreated, non-image, areas 2 of the organopolysiloxane and image areas 3 where the organopolysiloxane has been treated with low temperature plasma to be oleophilic or ink-receptive. Such a printing plate may be prepared by providing a pattern-wise layer 5 of a plasma-resistant protective material on the organopolysiloxane layer, followed by the plasma treatment and removal of the resist layer. A layer of an abrasion-resistant ink-receptive material may be provided on the treated areas of the organopolysiloxane. A metachromatic substance susceptible to plasma treatment may be included in the organopolysiloxane or in an undercoating primer layer. <IMAGE>
Patent GB-2057639-A (GB)
Title: Shut-off valve
IPC: F16K31/08
Filed: 1980-09-05
Abstract: A shut-off valve having the combined functions of emergency manual control and normal remote control for shutting the valve off. The valve has a closure member 11 which is spring or weight loaded down onto a valve seat 13 and is mounted on a rod 8 to which a ferromagnetic plate 10 is attached. A magnetic coupling system 18 comprising a permanent-magnet and an electromagnet is movable by a lever 17 outside the housing to move the permanent-magnet into engagement with the ferromagnetic plate and then withdraw the plate so that the closure member is lifted off the valve seat. Energisation of the electromagnet reduces the magnetic attraction between the permanent- magnet and the plate causing the closure member to engage the valve seat under the force exerted by the spring or weight loading. The closure member may also be moved into the closed position by the lever moving both the permanent-magnet and the plate.   <IMAGE>
Patent GB-2084520-A (GB)
Title: Pontoons
IPC: B63B35/38
Filed: 1980-09-23
Abstract: A pontoon assembly for use as a base for a car park or building redevelopment comprises a number of pontoons (1), regularly located with respect to each other, with planar support surface sections (4) supported thereby. The pontoons (1) are preferably contiguous to each other and by use of this assembly a base (1, 2, 3, 4) can be provided on, for example, disused dock sites to cheaply enable such sites to be used for virtually any desired purpose. <IMAGE>
Patent GB-2084886-A (GB)
Title: Water distillation still
IPC: C02F1/04
Filed: 1981-09-30
Abstract: A water distillation still in which scaling is prevented from occuring when it is run from a hard water supply, includes a water softener 6 through which the water passes before reaching the evaporating vessel 1 and flow regulating means 7,12 which restricts the flow of softened water into the evaporating vessel to prevent the water from foaming in the evaporating vessel. The water softener is preferably of the cation exchange type which replaces the calcium of the hard water by the sodium of a sodium salt. A single main water supply line 8 splits into two branches upstream of the water softener 6. One branch 9 takes cooling water to the condenser 3 and the other branch 10 takes water to the water softener through an adjustable throttle device 12. The condenser 3 has a main coil 4 through which the cooling water is passed, and a subsidiary coil 5 through which the softened water passes to be pre-heated before it reaches the evaporating vessel. <IMAGE>
Patent GB-2089698-A (GB)
Title: Ingot mold cleaning device
IPC: B22D43/00
Filed: 1981-10-06
Abstract: The device includes a body portion (10) having the same configuration as the mold cavity with slightly smaller cross-sectional dimensions at corresponding areas relative to the mold cavity. A plurality of cleaning brushes (40) are disposed in a predetermined pattern on each body portion side wall (16, 18, 20, 22) so as to extend outwardly thereof. When the body portion (10) is inserted into or received by the mold cavity, the cleaning brushes (40) cleaningly engage and/or abraid the corresponding mold cavity side walls. In one arrangement, at least some of the cleaning brushes (40) are movable under the influence of springs relative to the body portion side walls. <IMAGE>
Patent GB-2087761-A (GB)
Title: Wheel rim
IPC: B21D53/30
Filed: 1981-10-12
Abstract: A wheel rim comprising a first metallic part (11) with at least one grooved portion (13) on one of its surfaces, another metallic part (12) in contact with the first (11) so that there is a gap between the two adjacent surfaces and a resilient member (20) secured on the outside surface of the outer metallic part (11). Once this rim is assembled it can then be welded to the wheel disc (21) and the gap will prevent the welding heat reaching the bond between the member (12) and the resilient member (20). <IMAGE>
Patent GB-2092184-A (GB)
Title: Knitting machine with roughing device
IPC: D04B35/36
Filed: 1981-12-17
Abstract: A flat circular knitting machine comprises knitted product discharge means disposed below two needle bed pairs (1) and comprising a driven delivery roller (2), a pressing roller (3) and a roughing idler (4) arranged parallel to the delivery roller (2) and offset in height therefrom. The spacing of the roughing roller (4) from the surface of the delivery roller (2) can be determined by means of pivot bearings (5) disposed at either end of the roughing roller and adjustment spindles (8) extending into the bearings (5). Arranged below the region of action of the roughing roller (4) is an adjustable stripper (14) which corresponds in width to the roughing roller. <IMAGE>
Patent GB-2116292-A (GB)
Title: Valve installation
Inventor: EDWARDS CHARLES RICHARD
IPC: F16K1/44
Filed: 1982-01-26
Abstract: In a double seat valve it may occur that a pressure pulse in the lower valve chamber 12 can force the valve open, leading to a risk of contamination of food liquid in the upper chamber 11. In order to detect this occurrence, a valve of this type is provided with microswitches 27, 28, or other similar devices such as proximity switches, to detect upward movement of the valve member 15. A dedicated microprocessor, or other logic device, differentiates between such movements which are a result of controlled movements and those which constitute a malfunction. <IMAGE>
Patent GB-2095389-A (GB)
Title: Shell and tube exchanger
IPC: F28D7/08
Filed: 1982-03-02
Abstract: A shell and tube heat exchanger has an outer shell 9 and a series of heat exchange tubes 24 located therein, said tubes being secured at their open ends through a tube sheet 31, and a pair of end caps 27 located within the end cover space defined by a shell cover 19 forming said space with the tube sheet 31 and being adapted to form a flow chamber between the open ends of certain tubes in said heat exchanger in such a manner that fluid leaving the end of any of said certain tubes is redirected into the others of said certain tubes by substantially sealingly connecting each said end cap 27 to an end tube sheet 31 of said exchanger independently of the inlet or outlet of said tube side fluid, said fluid flowing from the inlet cover space through said tubes and flow chambers to the outlet cover space. The tubes may be straight and at least one end cap may be located in the end cover space at each end of the tubes. Or the tubes may be U-tubes and there may be only one end cover within which both end caps are located (Figure 14 not shown). <IMAGE>
Patent GB-2095336-A (GB)
Title: Electrothermal gas thrust unit
IPC: F02K9/68
Filed: 1982-03-04
Abstract: Hydrazine is prevented from premature vapourisation by being introduced into the thrust chamber 10 via an injector tube 16 and an extension tube 15, the unit having a heat conducting diaphragm 18 attached adjacent the junction of the injector tube and the extension tube. <IMAGE>
Patent GB-2099971-A (GB)
Title: Drying apparatus
IPC: F23G7/06
Filed: 1982-04-22
Abstract: Heat is provided to a closed pan (16) with a double-wall bottom (30) and side (28) by a gas-fired incinerator (46) which preheats air that is admitted to the pan and then drawn into and combusted in the incinerator together with gases and moisture evolved from the material being dried. The incinerator's combustion products are passed through the double wall and bottom of the pan to heat the material being dried and are then vented through a chimney (70). <IMAGE>
Patent GB-2101597-A (GB)
Title: Process for producing isopropanol
Inventor: BEZMAN SUSAN A
IPC: C10L1/02
Filed: 1982-06-22
Abstract: Isopropanol is produced by the hydration of propylene by a process which includes the steps of reacting a propylene-containing feedstock with water in the presence of a cation exchange catalyst in the acid form under mixed phase direct hydration conditions including a temperature of from 275-375 DEG F (135-191 DEG C, a pressure of from 1000 to 2000 psi, a water to propylene molar ratio of from 5 to 15 and a propylene liquid hourly space velocity of from 0.15-1.5 and thereafter recovering from the crude product an aqueous isopropanol solution, which can be used in the production of a high octane gasoline composition by continuously blending the isopropanol from the aqueous solution of isopropanol directly into a stream of gasoline blending hydrocarbon by mixing the aqueous solution and the gasoline, rapidly separating the resulting mixture into two phases, for example, by passing it through water coalescer means, and recovering the organic phase which consists essentially of the gasoline and isopropanol.
Patent GB-2123744-A (GB)
Title: Improvements in and relating to the moulding of materials
Inventor: SEBELIN ROBERT ARNOLD
IPC: B29D24/00
Filed: 1982-07-13
Abstract: A mouldable material 1 includes at least two spaced apart outer layers 2, 4 of material which are impregnated with a thermosetting compound. At least one intermediate fluted or corrugated layer 3 of material is located between the outer layers 2, 4. Securing or bonding material 5 is provided between the fluted or corrugated layer 3 and each outer spaced layer 2, 4. Temperature is applied to said layers 2, 4 and 3 to secure or bond together said layers to form a mouldable material. The invention also provides for a method of forming a moulded article from the mouldable material, wherein the mouldable material 1 is subjected to pressure and heat sufficient to mould the article and activate the thermosetting compound. <IMAGE>
Patent GB-2105924-A (GB)
Title: Electrical connector
Inventor: ROSSBERG SOREN N
IPC: H01R13/68
Filed: 1982-07-13
Abstract: An electrical connector is provided for enabling a plurality of plugs to be connected to a single electrical power supply socket. The connector has a plurality of connector sockets each of which has a plurality of openings (7) adapted to receive an earth pin and a pair of power-receiving pins of a respective plug, and a shutter (20) for each socket. Each shutter (20) is movable between a first position in which it obscures the openings (7) for the power-receiving pins and a second position in which it does not. Each shutter (20) is movable from the first position to the second position by the action of inserting the earth pin and is biassed towards the first position by a resilient member (24) forming an integral part of the shutter (20).   <IMAGE>
Patent GB-2109174-A (GB)
Title: Electrical connector assembly
Inventor: HAMMER VALENTINE J
IPC: H01R24/38
Filed: 1982-09-01
Abstract: An electrical plug/socket assembly includes a contact insert assembly (1) characterised by a central pin conductor (10), an intermediate conductor (20) surrounding the central pin conductor (10), and an outer conductor (30) surrounding the intermediate conductor (20): insulating elements (40,50,60) separating the conductors. The contact insert assembly (1) mates with a corresponding assembly (2). Contact insert assemblies (1,2) are held by respective resilient fingers in a bore of a plug/socket assembly (Figure 2, not shown) which is provided with a further bore for housing a further different plug/socket assembly. <IMAGE>
Patent GB-2111581-A (GB)
Title: Clips for conduits
Inventor: PITTION PHILIPPE
IPC: F16L3/08
Filed: 1982-10-12
Abstract: A conduit clip comprises a head formed by yokes (1) (2) and a ribbed shank (6) which is extended by an expansible dowel (8). The shank has a longitudinal bore and the dowel has a diametral slot extending to meet the bore. The shank is pressed into a pre- drilled hole in a wall or ceiling, the hole size being such that the shank ribs bend back and grip the hole in the wall. A screw or pin can be pressed through the bore to enter the slot and expand the dowel to improve the grip of the shank particularly in plaster or other relatively soft materials. <IMAGE>
Patent GB-2129032-A (GB)
Title: Monitoring apparatus
Inventor: WHITEHEAD PHILIP
IPC: E21C35/24
Filed: 1982-10-21
Abstract: Monitoring of a specific object, for example a face cutting machine 6 in a longwall mine, is achieved by propagation of a signal between the machine and another object such as a mine roof support 2, an operation being carried out upon the signal to render it unique and distinguishable from stray reflections. In a preferred embodiment polarised electromagnetic waves are emitted from a device 18 on the mine roof support 2 and their plane of polarisation is twisted through a right angle and re-directed back towards a detector 20 by a wave guide 22. The detector is arranged to detect waves whose plane of polarisation lies at right angles to those emitted from device 18, i.e. those and only those which have passed through the wave guide. Unwanted reflections of the waves from the device 18 are therefore not detected. <IMAGE>