baber/WOPTO huggingface dataset:
Patent GB-2086646-A (GB)
Title: Vent valves for batteries
IPC: H01M2/12
Filed: 1981-09-25
Abstract: This invention is a vent valve suitable for an electric storage battery in which a movable valve member 16 co-operating with a valve seat 14 is caused to move by being attached to or integral with a rubber annulus 19 one side of which is exposed to ambient pressure while the other side is exposed to the pressure within the battery. The area of the annulus 19 is substantial compared with the size of the valve member so that a small pressure difference across it can be sufficient to open the vent. Alternatively (Fig. 7) a corrugated annulus 19 may be provided which forms a seal with a post 42 depending from a closure 23. Motion of the annulus under influence of pressure causes the inner edge to encounter recesses 43, allowing escape of gas past the annulus. In a further embodiment (Fig. 9) a flexible disc 19 seals against shoulder 116 and unseals when the disc 19 distorts under the influence of pressure. <IMAGE>
Patent GB-2085573-A (GB)
Title: Warm Water Store for a Solar Collector
IPC: F24J2/34
Filed: 1981-09-28
Abstract: A warm water storage means for connection to a solar collector includes a storage container (9) in the base of which there is a horizontally arranged double-jacketed pipe (12) having an inner jacket (14), an outer jacket (13) and an annular space (15) between them. The space 15 is sealed off from the storage container and is provided with inlets (6,8) and outlets (5,7) to the collector. A cold water feed pipe (10) leads into the central region of the inner jacket (14) and discharges against it, and the jacket (14) is open to the interior of the storage container (Fig. 3). <IMAGE>
Patent GB-2110375-A (GB)
Title: Remotely readable compasses
Inventor: D ARCY GEORGE PAUL
IPC: G01C17/26
Filed: 1981-11-13
Abstract: A compass whose reading can be sensed at a remote position by telemetry equipment comprises a magnet 1 embedded in a spherical block 2 located within a spherical housing and floating in appropriate fluid 3. Sensing coils, or light sensing devices, are provided within the housing 4 to provide variable signals as the magnet hunts about magnetic north and these signals are processed by a microprocessor, to ascertain the position about which the magnet is hunting. <IMAGE>
Patent GB-2089566-A (GB)
Title: Electrically Alterable Read Only Memory Semiconductor Device
IPC: H01L21/8247
Filed: 1981-12-10
Abstract: An electrically alterable read only memory device including at least one cell in a substrate having a memory gate 54 on two superimposed insulating layers 26, 40 at whose interface changes can be stored, and source 20 and drain 22 regions with a memory gate region 30 therebetween, the substrate in the memory gate region having therein a first impurity material of a first conductivity type to establish a desired write threshold voltage and a second impurity material of a second conductivity type opposite to said first type to tailor the surface concentration profiles of the impurity material in the memory gate region of the substrate. <IMAGE>
Patent GB-2111613-A (GB)
Title: Controlling gearbox and clutch of a power transmission
Inventor: WILKINS KEITH ROLAND
IPC: B60W30/18
Filed: 1981-12-17
Abstract: A control system for a power transmission system which incorporates a multi-range gearbox and a clutch, comprises a clutch operating lever (4), a fluid-pressure operated servo cylinder (7) for disengaging the clutch and operable in response to movement of the clutch operating lever (4), a double acting fluid-pressure-operated actuator (10) for changing gear ranges in the gearbox, a selector valve (11) for selectively directing pressurised fluid (normally air) in opposite directions to the actuator, and valve means such as a relay valve (20) or a pressure regulating valve for transmitting pressurised fluid to the selector valve (11) to move the actuator (10) during or after disengagement of the clutch, the valve means (20) being operable by changes in fluid pressure e.g. in an hydraulic circuit (5,6,7) or a pneumatic circuit (8), resulting from movement of the clutch operating lever (4). <IMAGE>
Patent GB-2114404-A (GB)
Title: Generating a colour video signal representative of a stored picture
Inventor: CHAMBERS JOHN PHILLIP
IPC: G09G5/06
Filed: 1982-01-28
Abstract: Colour video signals are generated representative of a stored picture, e.g. for use with an electronic tablet or graphics system, by reading from a code store (20) a succession of colour codes each indicating a pixel colour, looking up in a palette store (22) the colour component values corresponding to each colour code, and combining in an interpolator (30) two selected colour component values to provide an output. The combination function is determined by a circuit (32) on a pixel-by- pixel basis from control codes included in the sequence of codes stored in the code store (20). The interpolated colours may be not available on the palette, and if the interpolation is to improve the appearance of a colour transition, the position of the edge may be defined to a fraction of a pixel. <IMAGE>
Patent GB-2092210-A (GB)
Title: Suspension bridges
IPC: E01D19/16
Filed: 1982-01-29
Abstract: In the erection of a main suspension cable 11 of a suspension bridge without the use of a preliminary footway, several preformed parallel multi-wire strands 6 from which the main cable is to be formed are drawn over and between the bridge towers by haulage ropes 12, the trailing length of each strand 6 being supported within roller-carrying spacers 15 suspended from fixed support lines 16 positioned below and to one or each side of the path to be taken by the main cable; at least one additional fixed line 20 is provided across the span to support motorised man-carrying trolleys 19 which can be driven along the span to provide manual access to strands 6 supported within the spacers 15 and to the main cable 11 itself. Subsequent erection work is carried out using a cable- supported working platform. <IMAGE>
Patent GB-2093983-A (GB)
Title: Control unit for a heating and ventilating or air conditioning system of a motor vehicle
IPC: B60H1/00
Filed: 1982-02-26
Abstract: A control unit for a vehicle heating and ventilating or air conditioning system includes a temperature selector switch 2 for automatic control of a flap 4 and a programme selector 6. The latter is a push button unit having several buttons 11 each operative to set a predetermined combination of the positions of flaps 12, 13 and the speed of a blower 9. This simplifies control in that the driver need only select the desired temperature and press a button which is readily identifiable with the prevailing weather conditions. <IMAGE>
Patent GB-2097138-A (GB)
Title: Control arrangement for automatic focusing and exposure camera
IPC: G02B7/32
Filed: 1982-02-26
Abstract: A camera having an automatic focussing device and an automatic exposure control device operated in turn by a single electromagnet 2. Operation of the camera release causes current to flow through electromagnet 2, which releases plate 22 to allow auto focussing. Detection of a peak in received radiation causes a signal to be generated, which de-energises electromagnet 2. Plate 22 is locked by latch 19 at the in-focus position. If 96 ms after camera release the signal has not been generated, electromagnet 2 is de- energised, to release plate 7 and lock plate 22. 122ms after camera release, electromagnet 2 is re-energised, releasing plate 7 again to effect opening of the shutter blades 13. Completion of an exposure which releases electromagnet 2, to close the shutter. <IMAGE>
Patent GB-2116363-A (GB)
Title: Multi-level infra-red detectors and their manufacture
Inventor: READHEAD JOHN BARRY
IPC: H01L31/10
Filed: 1982-03-03
Abstract: A multi-colour or other multi-level infra-red detector comprises at least one first detector element (10) formed in a first portion (11) of a lower body (11, 12, 13), e.g. of cadmium mercury telluride, and at least one second detector element (20) having different detector characteristics formed in an upper body (21) e.g. of cadmium mercury telluride. The lower body is divided preferably by ion-milling into at least two (and more usually three or more) portions (11, 12 and 13) separated from each other by gaps (14, 15) which are bridged by the upper body (21). Electrical connections to the second detector element(s) comprise the separate second (and further) portions (12 and 13) of the lower body and preferably include metallization layers (2 and 3) extending from the top to the substrate (1) on which the lower body (11, 12, 13) is mounted. The substrate (1) may be of insulating material, e.g. sapphire, or it may be for example a silicon CCD for processing signals from the detector elements (10 and 20).
Patent GB-2116438-A (GB)
Title: Gold-prospecting board game
Inventor: SPRATT KENNETH CECIL
IPC: A63F3/00
Filed: 1982-03-08
Abstract: The game comprises a playing board as shown together with miniature cowboy playing tokens, "gold" bars, "gold" nuggets, bag boards (Fig. 3) with slots and holes for the bars and nuggets, "equipment" cards each bearing a dice value and the price of a named piece of prospecting equipment, sets of "Lucky Strike", "Pitfall", "Badlands" and "Gold" cards, scrip money and dice. Box compartments for a "Bank" and for "Gold Deposits" and equipment "Stores" may also be provided. The object of the game is to acquire five "gold" bars by means of filling five bags with nuggets as defined by the rules of the game. <IMAGE>
Patent GB-2116420-A (GB)
Title: Foot warmer
Inventor: BLACKBURN ALLAN GILBERT
IPC: A47C21/02
Filed: 1982-03-13
Abstract: A foot warmer comprises insulating means, such as a foam block, for reducing heat loss from feet which is located between an upper mattress of a bed and bedclothes which are associated with the bed, said insulating means having at least one surface which is capable of supporting the bedclothes in order to space them from the upper mattress, and locating means in order to maintain the insulating means in position on the bed. <IMAGE>
Patent GB-2094809-A (GB)
Title: Stoma seal adhesive
IPC: C09J7/38
Filed: 1982-03-15
Abstract: A pressure-sensitive adhesive composition having the capacity to absorb from about 15 to about 40% of its own weight in water comprises;   (a) from about 30 to about 80 parts by weight of a pressure-sensitive adhesive component selected from the group consisting of natural rubber, silicone rubber, acrylonitrile rubber, polyurethane rubber, polyisobutylene and acrylic polymers; (b) from about 30 to about 80 parts by weight of a moisture absorbing component selected from the group consisting of karaya gum, locust bean gum, sodium acrylates, polyvinylalcohol, powdered pectin, gelatin, carboxymethylcellulose, high molecular weight carbowax, and carboxypolymethylene; and (c) from about 2% to about 20% by weight based on the total weight of said adhesive composition of silica.   The invention also includes a pressure-sensitive surgical sheet material comprising a thin pliable substrate bearing on at least one surface thereof a composition as defined above.
Patent GB-2096316-A (GB)
Title: Optical position detector
IPC: G01B11/00
Filed: 1982-03-31
Abstract: Optical position detectors, eg for the accurate registration of a mask pattern on a substrate in the manufacture of integrated circuits, are provided with a wide lock-in range by means of a prism P of large apex angle  beta , typically 165 DEG , attached to one object V, eg the table. A light source B, a lens L and a pair of radiation detectors D1, D2 are attached as an assembly to the other body, eg the substrate support. The image of B provided by L is focussed on the prism apex when the objects are in registration, the split beams b1 and b2 illuminating the two detectors equally. When the objects are out of registration, the detectors are unequally illuminated, providing a difference signal for servo control of registration. The difference signal is maintained for a displacement of prism P over the whole width of the prism base, the deflection of beams b1 and b2 depending only on the base angle  alpha . The prism may have reflective surfaces eg four mutually inclined surfaces so-operating with four detectors to measure movement in two dimensions, and light guides may be utilised. Rotational registration of a turntable is achieved by a detector system at the periphery thereof. <IMAGE>
Patent GB-2110161-A (GB)
Title: Improvements in or relating to plates for planographic printing
Inventor: FIGOV MURRAY
IPC: G03G7/00
Filed: 1982-04-01
Abstract: A planographic printing blank to which a developed toner image on an electrophotographic recording member can be transferred and fixed, comprises a sheet of flexible insulating material and an image receiving etchable layer supported by said sheet having a volume resistivity of at least about 1 x 10<12> ohms/cm (determined as hereinbefore described) and consisting essentially of 30 to 75% by weight unsensitised zinc oxide, 0 to 40% by weight of clay and 10 to 20% by weight of a resin binder.
Patent GB-2097723-A (GB)
Title: Improved binding
IPC: B42D5/02
Filed: 1982-04-21
Abstract: A binding for a book, for example a cheque book comprises a strip material which may be plastics and carry a printed security pattern, the strip being backed with an adhesive the adhesive properties of which are greater than the tensile strength of the strip such that any attempt to remove the binding from the book causes the strip to tear or fragment.
Patent GB-2113399-A (GB)
Title: Method and apparatus for rapid NMR imaging of nuclear parameters within an object
Inventor: CROOKS LAWRENCE E
IPC: G01N24/08
Filed: 1982-11-24
Abstract: An imaging NMR scanner obtains plural spin echo signals during each of successive measurement cycles permitting determination of the T2 parameter for a display pixel after but a single measurement cycle, and determination of the T1 parameter after a further cycle. The amplitude of the NMR spin echo responses is dependent on an "a" machine parameter (the elapsed time between initiation of a given measurement cycle and the occurrence of the NMR response) and upon a "b" machine parameter (the elapsed time between initiation of successive measurement cycles). These "a" and "b" machine time parameters are selectively controlled to enhance resultant image contrast between different types of tissue or other internal structures of an object under examination. Special phase control circuits ensure the repeatability of relative phasing between successive NMR responses from the same measured volume and/or of reference RF signals utilized to frequency translate and synchronously demodulate the NMR responses in the successive measurement cycles of a complete measurement sequence. Special subsequences of four measurement cycles are utilized to provide resultant combined spin echo measurements substantially independent of FID signal components. <IMAGE>
Patent GB-2131126-A (GB)
Title: Operators for gas valves
Inventor: CLIFF THOMAS CHARLES
IPC: F16K31/126
Filed: 1982-12-06
Abstract: A remote operator for a gas burner on a cooker hob comprises a manual control knob (24) operating a push rod (25) bearing on a first expansible capsule (26). A length of semi-flexible capillary tube (21) joins capsule (26) to another capsule (20) forming therewith a sealed system filled with water. Capsule (20) operates another push rod opening a valve plate (14) of a gas valve. When in use, three or four burners of the hob all have similar operators, the manual control knobs (24) being mounted at a location remote from the valves. <IMAGE>
Patent GB-2117058-A (GB)
Title: Fire extinguisher handle
Inventor: HOPKINS KENNETH LESLIE
IPC: F17C13/00
Filed: 1983-02-07
Abstract: A handle assembly for a pressurized container (10) of a fire extingutsher. The mouth of the container is closed by an end cap fitted with a valve for release of fluid from the container. The handle assembly comprises an annular collet (13) of resilient material mounted on the container around the mouth thereof, a handle (15) having jaws which are clamped around the collet, and a valve actuating lever (16) on the handle. The collet is a snap fit on a lip on the container, or is screwed onto the container, and is locked onto the container by the jaws. When the valve is operable by the lever, a flag (17) on the handle is moved by the lever into an exposed position to indicate that the fire extinguisher has been used. A detachable safety pin (18) prevents operation of the lever when the pin is in place. When the extinguisher is used after removal of the pin, the flat prevents the safety pin being replaced.
Patent GB-2138626-A (GB)
Title: Mass Spectrometers
Inventor: DOUGLAS GORDON INGRAM
IPC: H01J49/16
Filed: 1983-04-07
Abstract: In a mass spectrograph apparatus, electromagnetic radiation such as a laser beam is directed against a sample 52 to be investigated. The radiation is directed and focussed on the sample using reflecting optics 42, 46, 48, and a concave/convex mirror pair 46, 48 is suitable. The use of reflecting optics allows clear space to be left around the sample, where analysing equipment is to be used. <IMAGE>
Patent GB-2118412-A (GB)
Title: Breaking up soil
Inventor: SQUIER WILLIAM HUMPHREY RANDAL
IPC: A01B43/00
Filed: 1983-04-11
Abstract: A device for separating clods and stones from the soil comprises a frame adapted to be drawn or carried across the land; one or more means carried by the frame for raising a layer of soil and passing it to a first conveyor means 10 having apertures to permit material on the conveyor to pass therethrough and to be returned to the land, there being disposed above the conveyor a surface 20 adapted to bear against material on the conveyor so as to crush and/or abrade it and thereby reduce its particle size to permit it to pass through the apertures, the surface and/or the first conveyor means being adapted to move apart from one another to permit the passage of resistant material between them. <IMAGE>
Patent GB-2120397-A (GB)
Title: Improvements in or relating to display apparatus
Inventor: BOYD MICHAEL IAN
IPC: G09F9/00
Filed: 1983-04-12
Abstract: In order to prevent ambient light severely reducing the contrast of a display, a directionally selective light transmission filter is disposed in the light path, the filter comprising light absorbing particles 4 aligned to permit maximum transmission along the line of sight 0 but the reduce or prevent transmission of light, e.g. from the sun (S), at angles inclined to the line of sight. The display may be head-down or head-up. Preferably the particles are molecules of a pleochron dye dispersed in a liquid compound host material 3. <IMAGE>
Patent GB-2124076-A (GB)
Title: Continental quilt
Inventor: WALKER SYLVIA MARY
IPC: A47G9/02
Filed: 1983-04-14
Abstract: A continental quilt or duvet has a top panel (10), side panels (11 and 12) and an end panel (13), the overall flat shape of the quilt being that of a rectangle missing two square portions at a pair of adjacent corners such that the quilt can be fitted on a bed to present a neat and tailored appearance at the lower corners of the bed. The outer edges of the side and end panels (11,12,13) may carry frills, or the frills may be provided on a bag-like cover shaped to receive the quilt. <IMAGE>
Patent GB-2122864-A (GB)
Title: Improvements in straw treatment
Inventor: JORDAN KENNETH CHARLES
IPC: A23K10/32
Filed: 1983-05-31
Abstract: Straw/fodder conversion apparatus comprises a sealable chamber for receiving straw to be treated in a heated ammonia laden atmosphere. Ammonia gas is fed to the chamber via an external expansion tank which receives liquid ammonia under pressure from a liquefied source. The liquid ammonia expands and boils in the tank, and a series of baffles are provided in the tank to increase the surface area in the tank exposed to liquefied ammonia and so promote boiling.
Patent GB-2126022-A (GB)
Title: A method of terminating an electrical cable by forming a cable gland
Inventor: GRAY ANTHONY JAMES
IPC: H02G3/06
Filed: 1983-08-30
Abstract: A mass 23 of elastomeric material is moulded (fig. 2) around an exposed bundle 12 of conductors of an armoured cable 10 so that it adheres closely to each conductor and fills the interstices between them, by filling a cavity of a mould 24 with unset liquid cold setting resin and subjecting it to a head of pressure as it sets. Assembly of a mechanical cable gland is then completed (fig. 1), including fitting an annular gland body 18 having a portion complementary to the outer surface of the moulded mass 23 and bringing the complementary surfaces into face to face contact under pressure by the final assembly step. <IMAGE>
Patent GB-2132003-A (GB)
Title: High temperature cell
Inventor: BONES ROGER JOHN
IPC: H01M50/489
Filed: 1983-10-18
Abstract: An electrochemical cell and a method of reducing potential hazard in electrochemical cells are provided. The cell (18) has as reactive components molten sodium (22) and molten sodium aluminium chloride (28) and according to the invention a macroporous material such as a fibrous felt material is impregnated by one of said reactive components in a zone where they can react upon damage to the cell, to reinforce the reaction products produced and to enhance the ability of the reaction product to separate the reactive components from each other, to reduce undesirable consequences of the damage. <IMAGE>
Patent GB-2150099-A (GB)
Title: Conveyor assemblies
Inventor: BILLINGTON WILLIAM PETER
IPC: A01D17/10
Filed: 1983-11-29
Abstract: The driven sprockets 11 of a soil-separating web 8 are powered from the output shaft 15 for a Hooke's joint 17. The input shaft 19 of the joint 17 is inclined to shaft 15 at an angle of other than 180 DEG so that a constant speed drive to shaft 19 will result in the output shaft 15 accelerating and decelerating about some mean value which determines the overall conveying speed of the web. The resulting component of in-plane vibratory motion superimposed on the overall conveying motion of the web 8 gives the assembly a good soil-separating performance. The desired in-plane variation in the web motion may be achieved alternatively by means of a freewheel device and oscillating drive member. <IMAGE>
Patent GB-2136839-A (GB)
Title: Stabilised peroxide bleach
Inventor: MADAN GULZARI LAL
IPC: C01B15/00
Filed: 1984-03-09
Abstract: A cost-effective peroxide bleach having improved alkaline stability is obtained by forming an adduct of sodium sulphate, hydrogen peroxide, sodium chloride and an alkali metal phosphate, which is believed to be a mixed crystal having the formula:  4Na2SO4.2H2O2.NaCl (xM2O.yP2O5)n, wherein M is alkalimetal; x is from 1 to 3; y is from 0.5 to 2; and n is from 0.1 to 1. The hydrogen peroxide adduct is suitable for use as a bleach in alkaline detergent compositions in countries with climates where high temperature and high humidity prevail.
Patent GB-2139251-A (GB)
Title: A thread feed mechanism for a hosiery knitting machine
Inventor: NURK SIEGFRIED
IPC: D04B15/44
Filed: 1984-03-13
Abstract: Thread compensating mechanisms 21 include thread guide eyelets 31 which are movable vertically to form thread loops 37. Each eyelet 31 is mounted on a sliding body 32 which is freely movable on a vertical guideway 34. Each eyelet 31 cooperates with a thread brake 25, the braking force of which is controlled as a function of the vertical position of the respective eyelet 31. The thread brakes 25 may consist of electromagnetically controllable ball brakes in which case control of the braking force of each is effected by way of electrical sensors 35 arranged on the respective guideways 34. The mechanisms are of use, for example, on carriage reversal in a flat machine. <IMAGE>