baber/WOPTO huggingface dataset:
Patent GB-2137290-A (GB)
Title: Repairing seals in containers
Inventor: HICKEY CHRISTOPHER DANIEL DOWL
IPC: B65D90/00
Filed: 1984-02-16
Abstract: For repairing a burst or leaky sealing tube 12 (or 35 or 111) in a container having an inflatable tube 12 (or 35 or 111) for sealing a flexible cover 11 (or 34 or 110) into a rigid channel 1 6 (or 13 or 25 or 31 or 120) on a base, a further length of tube 20 (or 26 or 36 or 122) sealed at both ends is put in the channel and inflated to compress the faulty sealing tube against the channel wall. A sealing compound may be positioned adjacent the burst or leak within the burst or leaky tube prior to the installation of the inflatable tube.   <IMAGE>
Patent GB-2159939-A (GB)
Title: Detector apparatus
Inventor: ADAMSON GRAEME
IPC: H01L21/30
Filed: 1984-03-02
Abstract: An optical detector apparatus for pre-aligning a semiconductor wafer 1 during lithographic processing utilises a vee groove 3 etched into the wafer, a light beam directed normally to the wafer surface, and dual photodetectors 5 and 7 to unambiguously and precisely detect the location of the groove. Lens system 9 focusses the light beam onto the wafer surface and the dual photodetectors are located off the optical axis of the light source 11 so as to detect light reflected from the walls of the vee groove without detecting light reflected normally to the flat surface of the wafer. The product, sum or difference of the photodetector signals may be used to determine centering of the detector apparatus with the groove. <IMAGE>
Patent GB-2159105-A (GB)
Title: Vehicle construction
Inventor: WEST RICHARD GEORGE
IPC: B61D17/12
Filed: 1984-05-25
Abstract: A vehicle construction giving light weight for lower construction and running costs has a load-bearing structure comprises a floor (16), an under floor (17), a spine (18) extending therebetween longitudinally of the vehicle (10) and transverse bulkheads (19 to 24), these defining compartments in which are housed the steerable front wheels (11), the rear wheels (12), the engine (27) and gearbox (28), and luggage storage compartments. Side walls (30) extending between the under floor (17) and floor (16), and above the floor (16) add stiffness to the structure and has lips (31) at their upper edges to attach seats thereto. A sandwich construction roof (34), supported from side walls (30) also adds strength and stiffness to the load bearing structure. <IMAGE>
Patent GB-2154007-A (GB)
Title: Air elimination in a flow measuring system
Inventor: JENKINS CHRISTOPHER GLYN
IPC: A01J5/01
Filed: 1984-08-31
Abstract: In a system for measuring the amount of milk transferred from a holding vessel to a storage vessel, false measurements caused by entrained air are avoided by interrupting the transfer when excess air is detected and venting the air from the top of a reservoir E1 via a pipe VP1. Excess air in the flowing liquid is detected by an entrained air detector P1, and excess air in reservoir E1 is detected by a level detector P2. Detectors P and P2 are connected to a control box (C1, Fig. 2 not shown) which closes valves V2 and V3 during venting. <IMAGE>
Patent GB-2165632-A (GB)
Title: Heat exchanger structure
Inventor: NISHIMURA JINICHI
IPC: F28D11/02
Filed: 1984-10-10
Abstract: A heat exchanger comprises a hollow drum 2 into which a heated or heated medium can be charged, rotatably housed in an outer casing 1, a number of hollow projections 13 are formed on the outer peripheral surface of the hollow drum 2 and heating medium supply and discharge passages S-1 and S-2 defined by a partition M are provided within the hollow drum 2, and these heating medium supply and discharge passages S-1, S-2 communicate with hollow portions of the projections so that the medium passes through the projections for heat exchange with a surrounding medium in the outer casing 1. <IMAGE>
Patent GB-2148111-A (GB)
Title: Pillow
Inventor: TEASDALE BARRY CHARLES
IPC: A47G9/10
Filed: 1984-10-16
Abstract: A pillow of natural or synthetic resilient foam has a rounded edge 13 adapted, when the pillow is in use, to support the neck and which extends to a higher level than the portion of the pillow lying therebehind. Preferably the rounded edge 13 of the pillow is harder than the remainder. The pillow is particularly suitable for use by persons suffering from a variety of medical conditions, such as asthma, bronchitis, arthritis, and cervical disc problems. <IMAGE>
Patent GB-2174386-A (GB)
Title: Iron tannate production
Inventor: SEAVELL ALBERT JOHN
IPC: C09B61/00
Filed: 1985-05-01
Abstract: Iron tannate is produced by reaction of an iron (II) salt with a naturally occurring tanning extract in the presence of a remover of oxonium ions, such as an alkali metal acetate. The tanning extract used is preferably the aqueous phase obtained by chilling and centrifuging a natural extract, which aqueous phase has a defined degree of purity. This aqueous phase may be spray dried and then reconstituted for use. Alternatively the natural tanning extract may be used if an elevated temperature, from 60-90 DEG C is used for the reaction. Preferred iron (II) salt and tanning extract are, respectively, ferrous sulphate and mimosa extract.
Patent GB-2161590-A (GB)
Title: Improvements relating to boilers
Inventor: MILBURN ROBERT JOHN
IPC: F24H8/00
Filed: 1985-05-13
Abstract: A boiler suitable for a space heating system has a heat exchanger in two parts (101, 102) subjected respectively to high and low temperature combustion products. These parts share common outlet (103) connected to the inlet side of the system. An inlet to the second part (102) of the heat exchanger is connected to the outlet side of the system and an inlet to the first part (101) of the heat exchanger is coupled, via a pump (300) to the common outlet (103). Water is caused to pass through the first part at a rate which is sufficiently high to inhibit localised boiling. <IMAGE>
Patent GB-2177434-A (GB)
Title: Attachment clip for standing seam roof
Inventor: BARKER W DAVID
IPC: E04D3/367
Filed: 1985-07-02
Abstract: A clip unit 10 for attaching a standing seam roof to a building structural element F includes a base 30 with a cross-piece 32 mounted thereon. A one-piece tab 36 is slidably mounted on the cross-piece 32 and is interfolded into the standing seam used to attach two roof panels E and EM together to attach those panels to the clip unit 10. The base is attached to a building structural element, such as a purlin, or the like, so that the roof panels are attached to that structural element in a manner which permits thermally induced panel movement to be accommodated. Another embodiment has a tab (936 Fig. 22) integral with a base (930 Fig. 22) which has a rod (939 Fig. 22) therewith which rod in turn is slidable along an eyebolt (EB Fig. 22) which is attached to a building structural element (P). <IMAGE>
Patent GB-2160931-A (GB)
Title: Power starter attachment for lawn-mower and other appliances having small internal combustion engines
Inventor: BODNAR GEORGE
IPC: A01D34/68
Filed: 1984-12-11
Abstract: A device for use with a portable electric drill (5) enabling starting of small internal combustion engine driven appliances such as lawn-mowers. The device consists of a driver component (1) and a driven component (9) with the driver component (1) being gripped by the chuck (4) of the drill (5) and the driven component (9) being attached to the flywheel (7) of the appliance to be started. Driving pins (3) on the driver component (1) engage slots (10) in the driven component (9) to rotate the engine. When the engine starts, the driven component (9) rotates faster than the driver component (1) and due to the existence of a lead-in (11) to the slots (10) the driving pins (3) disengage from the slots (10).
Patent GB-2164622-A (GB)
Title: Packing machines
Inventor: TAYLOR ROBERT HOWARD
IPC: B65B19/22
Filed: 1985-09-17
Abstract: A machine for packing papirosi cigarettes in a card packet, without foil, has a hopper (30) with two spaced outlets from which bundles of cigarettes are fed alternately into one of two boxes (43,44) which are each moved between a position adjacent one outlet and a common central position, where a continuous pusher (54) removes the cigarettes. Card blanks are fed from hopper (15), via gummer (25), across the path of the cigarettes, and folding of the blank around the cigarettes is initiated by a mouthpiece (60) through which the cigarettes are pushed. Side folds are made in folder (61) and a reciprocating shuttle (64), in which the trailing side and bottom tucks are made, transfers the packet to a platform (71). The packet is completed on being lifted into a drying stack (82). <IMAGE>
Patent GB-2168133-A (GB)
Title: A warhead, missile or projectile
Inventor: BOCK ERICH
IPC: F42B12/76
Filed: 1985-11-26
Abstract: A previously known two-part design of a warhead case, consisting of an ogival portion and a cylindrical portion, is replaced by a one-piece design of the warhead case 1 with a thickened fuze hole portion 11. <IMAGE>
Patent GB-2186141-A (GB)
Title: Beta compensating current source circuit
Inventor: MOON PHILIP ALBERT KENNETH
IPC: H03F3/34
Filed: 1986-01-30
Abstract: A current source circuit operable at low supply voltage-ie. at voltages lower than 1.4V and down to 0.9V and providing beta compensation. This circuit comprises a reference current source (S) in the collector circuit of a reference transistor (TS) the base of which is connected to the collector of a diode biassed drive transistor (T1). The collector voltage of the reference transistor (TS) is fed to the base of a further transistor (TS') to control current applied to the diode (TD) biassing the drive transistor (T1). The collector of the further transistors (TS') may be connected directly to the diode (TD) or may be applied to the base of an additional transistor (TS'') which transistor (TS'') in turn feeds current to the diode (TD). PNP and NPN drive transistor variants of this circuit are described. <IMAGE>
Patent GB-2186129-A (GB)
Title: AC power supply systems
Inventor: LAW HILTON
IPC: G21D1/02
Filed: 1986-02-03
Abstract: An ac power supply system includes a rectifier (7) fed by a normal ac supply, and an inverter (11) connected to the rectifier (7) by a dc link (9), the inverter (11) being effective to invert the dc output of the receiver (7) at a required frequency to provide an ac output. A dc backup power supply of lower voltage than the normal dc output of the rectifier (7) is connected across the dc link (9) such that the ac output of the rectifier (11) is derived from the backup supply if the voltage of the output of the inverter (7) falls below that of the backup supply. The dc backup power may be derived from a backup a.c. supply. Use in pumping coolant in nuclear reactor is envisaged. <IMAGE>
Patent GB-2171022-A (GB)
Title: A constructional toy or item
Inventor: MADDEN JOHN JAMES
IPC: A63H33/10
Filed: 1986-02-10
Abstract: A connector, for use with containers (e.g. empty cans) and possibly other elements to construct an item, is arranged to engage at least one container 2 and to be connectable via peripheral formations 21-26 with either another connector (as shown in Fig. 9) or another element. The item may be a toy model (Figs. 1-7), a tent frame (Fig. 34), shelving (Fig. 35), a chair, couch or table, or a pack of several containers engaged in as many interconnected connectors. Each connector shown can engage two aligned containers. Disc 14 may be apertured. Connectors may be connected by an integral flexible hinge. The peripheral formations may be studs and sockets. A connector may incorporate a flexible concertina tubing section. <IMAGE>
Patent GB-2175502-A (GB)
Title: Inhibiting the development of protozoa
Inventor: CARLE PIERRE REGIS
IPC: A61K31/215
Filed: 1986-04-02
Abstract: A process for combatting the endemics transmitted to living beings by protozoa is characterized in that a sufficient quantity of a compound of pyrethrinoid type is used in the place where the protozoa are found in order to prevent the development of the protozoa. The pyrethrimoid compounds may be administered to vertebrates, e.g. in food or water, or applied to rooms etc., or may be applied to the habitat of vectors (particularly insect vectors) of the protozoa. Preferably the amount of pyrethrimoid used is non-lethal to such vectors.
Patent GB-2175604-A (GB)
Title: Bearing materials
Inventor: EASTWOOD B J
IPC: C22F1/04
Filed: 1986-05-15
Abstract: Bearing materials and a process for the manufacture thereof are described. The bearing alloys are aluminium-based and comprise the following compositions expressed in weight percent; 8 to 35 tin, 1 to 3 copper, 2 to 10 silicon and remainder aluminium apart from incidental impurities. The alloys are preferably bonded to steel. The composite material is then raised in temperatrue preferably within the range 450 DEG  to 500 DEG  C. for a total time between 10 minutes and 90 seconds and then cooled at a cooling rate of at least 50 DEG C./min. for at least part of the temperature drop to ambient temperature. The composite material may optionally be additionally heat-treated thereafter to further improve the properties.
Patent GB-2199881-A (GB)
Title: Lock with mechanically coded key
Inventor: HERRIOTT LESLIE VICTOR
IPC: E05B49/00
Filed: 1986-09-18
Abstract: A lock for reading data represented by depressions (21) in a key has a rotatable member (12) for receiving the key, a ball (33) mounted in that member for engaging the key along the row of depressions, means eg photo-electric devices (32) for providing an electrical signal representing data read from the key and a lever (35) for transmitting motion from the ball to the photo-electric devices. The photo-electric devices are mounted in a stationary body of the lock, the lever is mounted in the rotatable member and an end portion of the lever protrudes from that member to intercept radiation transmitted between the photo-electric devices. When validated the signal causes the rotatable member (12) to be released for rotation. The key has additional formations (20) to operate conventional tumblers. <IMAGE>
Patent GB-2197394-A (GB)
Title: Jib cranes
Inventor: FINCH ALBERT JAMES
IPC: B66C23/84
Filed: 1986-11-12
Abstract: A jib crane comprises a fixed support pillar pivotally mounting a jib arm and a support leg 5 fixedly attached to the jib arm remote from the pillar. The base of the support leg 5 mounts a shoe 6 on the underside of which two removable tray assemblies 7 are slidably received. Each tray assembly 7 carries an air bearing pad 23 having apertures 28 through which air supplied to the pad 23 via a coupling 30 egresses to form an air film f at the base of the support leg 5 which permits movement of the support leg 5 relative to the ground 31 without friction. As a result, pivotal movement of the jib arm 3 relative to the support pillar 1 is facilitated. <IMAGE>
Patent GB-2188356-A (GB)
Title: Offshore structures
Inventor: HILL NIGEL
IPC: E02B17/02
Filed: 1987-02-20
Abstract: A steel lattice tower structure for use as a support for an offshore platform, and having peripheral legs spaced apart by 'X' braced panels; in which the intersections at the centres of the 'X's are deliberately displaced out of a plane defined by the ends of the four arms of the 'X', either outwardly (215), or inwardly (205), with respect to the periphery of the structure. <IMAGE>
Patent GB-2203774-A (GB)
Title: Rotary drilling device
Inventor: REID NEIL GEORGE
IPC: E21B10/12
Filed: 1987-04-21
Abstract: The rotary rock drilling device comprises chiefly a body (1), a rotary cutting disc (2) and a counter-reaction member (3). The body (1), is fitted with means (101) for connection to a suitable rotary drive system, and it is traversed in the height direction by a conduit (102), (103) opening into orifices (104), (105), provided for the circulation of a drilling fluid. The cutting disc (2) is arranged on one side of the lower part of the body (1), the face of the disc (2) being orientated towards the concave bottom (501) and the cylindrical wall (502) of the hole (5). The counter-reaction member (3) is arranged on the side of the body (1) away from that carrying the cutting disc (2). The maximum radial projection from the axis of rotation (A) of the body (1) of any part of the counter-reaction member (3) is less than the radius of the hole (5). The surface of contact (301) between the counter-reaction member (3) and the hole (5) is situated below the line at which the concave bottom (501) of the hole (5) meets the cylindrical wall (502) of the hole (5). The lowest point (B) of the surface of contact (301), which closely matches the concave surface of the bottom (501) of the hole (4), is separated from the axis of rotation (A) by a distance (C) greater than the distance (D) from the lowest point (E) of the cutting disc (2) to the same axis (A).
Patent GB-2204860-A (GB)
Title: Preparing aluminium dihydrogen tripolyphosphate dihydrate
Inventor: TSAI ROUNG-M-NG
IPC: C01B25/40
Filed: 1987-05-19
Abstract: A process for making aluminium dihydrogen tripolyphosphate dihydrate AlH2P3O10.2H2O comprises:   A. adiabatically neutralizing under agitation for from 0.5 to 3.5 hours aluminium oxide or aluminium hydroxide, with a phosphoric acid compound selected from 85% by weight phosphoric acid, ammonium phosphate or phosphorus pentoxide. wherein the molar ratio of phosphorus/aluminium is in the range of from 2 to 3.5 to obtain a translucent liquid having a moisture content of from 15 to 35% by weight; B. calcining the translucent liquid at a temperature in the range of from 250 DEG C to 350 DEG C for 3-20 hours to obtain an anhydrous aluminium dihydrogen tripolyphosphate; C. simultaneously hydrating the tripolyphosphate by adding water thereto at about 150 DEG C and grinding with the water to form polyphosphate dihydrate having a granular size of less than 40 microns. s
Patent GB-2193386-A (GB)
Title: Piezoelectric actuator
Inventor: TAKAHASHI TAKESHI
IPC: F02M63/04
Filed: 1987-07-15
Abstract: A piezoelectric actuator for moving an object member by utilizing a volume change of a piezoelectric element. The piezoelectric actuator includes a piezoelectric element, an envelope having a bellows or the like at least as a part of the wall, and a pressure chamber in which work oil is hermetically enclosed. Resiliency of the bellows or the like prevents breakdown of the piezoelectric element due to the supply of biased counter force, and highly improved sealing performance of the pressure chamber prevents leakage of the control oil.
Patent GB-2197385-A (GB)
Title: Separable hinge
Inventor: AIKEN CLIFFORD
IPC: E05D7/10
Filed: 1987-09-28
Abstract: A separable hinge including a first hinge leaf having a boss 16 and a second hinge leaf having a boss 30 hingedly connected by a hinge pin 14, the hinge pin being fixedly located in the first hinge boss 16 by serrations 24 and rotatably and axially withdrawable from the second hinge leaf boss. A bush 33 is located in the boss 30 to facilitate rotation. A projection 18b is provided to prevent axial withdrawl to the boss 30 in the normal operating range of the hinge. <IMAGE>
Patent GB-2204694-A (GB)
Title: Gap measurement and setting
Inventor: DUNKEL KELVIN
IPC: G01B3/30
Filed: 1988-04-11
Abstract: A method of setting the width of a gap between two members comprises locating a feeler gauge blade 1 in the gap, reciprocating the blade longitudinally of itself while closing the gap to the required setting, maintaining the amplitude of motion of the blade 1 constant by adjusting the driving force on the blade, and monitoring the driving force to determine when this reaches a predetermined level corresponding to the required gap setting. The output So from an optical sensor 9 for the amplitude of motion of the blade is compared with a reference signal Sr to produce a control signal Sc that controls the driving force applied to the blade by an electrical actuator 3. The electrical energisation signal V that powers the actuator 3 is used to indicate when the predetermined gap setting is achieved. Preferably, the blade is curved transversely of its line of motion so that it is progressively flattened by the two members as the gap is closed. <IMAGE>
Patent GB-2217990-A (GB)
Title: Treating malignant cells by magnetic fields
Inventor: MONTONE LIBER JOSEPH
IPC: A61N2/00
Filed: 1988-05-05
Abstract: An apparatus for destroying or retarding growth of malignant cells and tumors using one or more coils of wire 11, externally applied to the body, for chosen periods, which are connected to an alternating current source 10 to produce a low frequency sinusoidal magnetic field of between 50 and 500 gauss at the malignant region 14 to be treated. <IMAGE>
Patent GB-2225502-A (GB)
Title: L.F. noise reduction using negative feedback
Inventor: HAWKES HENRY WILLIAM
IPC: H03F1/26
Filed: 1988-11-02
Abstract: In an oscillator comprising a positive feedback loop which includes an amplifier, an amplitude-controller (or amplitude-limiter and a frequency-defining means (such as a tuned circuit) the multiplicative and/or pseudo-multiplicative phase-noise in the oscillator output is contributed mainly by the amplifier, secondarily by the amplitude-controller, and thirdly by a varactor (if included). In the present oscillator, the amplifier noise contribution is reduced by a form of amplifier in which the relatively low noise-frequencies are developed across a resistive load R4 and fed back negatively via an amplifier A1, while the oscillator output frequency developed across an inductive load L1 in series with R4 is not thus fed back but applied to the amplitude-controller. Low-noise forms of the latter, some also using amplified negative feedback of low noise- frequencies, are described, as is also a low-noise varactor. <IMAGE>
Patent GB-2213244-A (GB)
Title: Refrigerating appliances
Inventor: PAEYE GERARD
IPC: F25B27/00
Filed: 1988-11-29
Abstract: A refrigerating appliance which operates by means of the absorption-desorption of a fluid in a body comprises an energy collector (1) consisting of a housing (5) having an upper face (6) exposed to an intermittent supply of thermal-energy eg solar and lower face (7) on which is mounted a condenser 10. The body (14) arranged between the said faces is preferably of zeolite or activated charcoal. A space (9) is provided between the body and the lower face (7). An evaporator (2) is located in an insulating box (3). A tank (11) is connected to the housing (5) and evaporator (2) by respective conduits (8,4). A valve (20) is located in the tank (11) adjacent the end of conduit (4). <IMAGE>
Patent GB-2216899-A (GB)
Title: Control of electroplating of a batch of articles
Inventor: JOHNS ANTHONY
IPC: C25D17/00
Filed: 1989-03-15
Abstract: The apparatus comprises an individual plating cell for each article, each cell having its own power supply and electrolyte supply from a common reservoir and the current being continuously monitored by computer means and continuously integrated until a total desired level of charge has been passed to each cell. Once the desired charge has been passed to a cell that cell is then switched off. An example is given of plating turbine components with platinum. The plated articles may be subsequently treated by an aluminising operation. <IMAGE>
Patent GB-2231133-A (GB)
Title: Oil recovery in refrigeration system
Inventor: PEARSON STEPHEN FORBES
IPC: F25B31/00
Filed: 1989-04-04
Abstract: A shell and tube cooler (2) having baffles (3) to prevent liquid refrigerant carry-over to a compressor, includes a closed chamber (4) interposed in the refrigerant circuit between a condenser an expansion valve, through which chamber passes a coil (5) of narrow tubing opening at one end into refrigerant liquid within the cooler and connected into the vapourised refrigerant outlet (11) at its other end. Refrigerant liquid (containing lubricating oil) drawn into the coil (5) by differential pressure across the baffles (3) is vapourised by the relatively warm refrigerant in the chamber (4) leaving behind liquid lubricating oil. This is driven into the outlet (11) by the flow of vapour. This ensures that lubricating oil is recirculated and does not accumulate in the cooler. <IMAGE>