baber/WOPTO huggingface dataset:
Patent GB-2057582-A (GB)
Title: Improvements in valves for pressurized dispensing containers
IPC: B05B1/00
Filed: 1980-07-01
Abstract: A valve for a pressurized dispensing container comprises a valve housing (11) defining a valve chamber (15) and having at its lower end an inlet for pressurized material. An annular flexible seal (12) closes the upper end of the chamber, there is a cup-shaped valve member (13) with the chamber, and a hollow actuator stem (16) extends in sliding, sealed relation through the seal (12) and engages the valve member (13) at its lower end. A spring (14) urges the valve member (13) upwardly into sealing engagement with the seal (12), the actuator stem (16) being manually moveable downwardly against the action of the spring (14) to unseal the valve member (13) and open the valve. The wall of the actuator stem (16) includes at least one radial aperture (24) adjacent to but spaced from the lower end of the actuator stem and defining a lip portion (25) adjacent the lower end of the actuator. The aperture or apertures (24) place the interior of the actuator stem (16) in communication with the interior of the valve member (13) and the lip portion (25) serves to restrain the lower end of actuator stem (16) from passing through the seal (12) if the actuator stem is moved upwardly of the seal. <IMAGE>
Patent GB-2057212-A (GB)
Title: A/D conversion
IPC: H03M1/00
Filed: 1980-07-28
Abstract: A signal processing system employs a voltage to frequency converter 2 connected in succession to voltage sources Vin, Vref, Vo by electronic switches I, II, III to provide gated numerical corresponding values N1, N2 and N3 which are stored in a microprocessor S. The value of the source Vin is then computed from these values N1, N2, N3 and from a stored number N4 equivalent to the true value of the source Vref by the relationship   <IMAGE>   <IMAGE>
Patent GB-2064122-A (GB)
Title: Improvements in or relating to apparatus for measuring a dimension of an article
IPC: G01B21/04
Filed: 1980-11-17
Abstract: An apparatus for measurement of the horizontal distance between two points on an article comprises a worktable (14) mounted on a frame (12) for rectilinear movement in a first (X) horizontal direction transversely of the frame (12). A microscope (16) is mounted on a support (32) of the frame (12) and is movable (32) in a second (Y) horizontal direction substantially at right angles to the first direction. Respective positional transducers are associated with the worktable (14) and the microscope (16) to provide electrical signals dependent on their positions relative to the frame. The signals are processed by respective digital displays (110, 112) which display in metric or imperial units the distances that the worktable and the microscope have moved from a preset datum in aligning the points on the article successively with the microscope graticule. A cross member 232 on the microscope carries lamps 234a, 234b. <IMAGE>
Patent GB-2076925-A (GB)
Title: Joining tubular members
IPC: F16L41/08
Filed: 1981-03-17
Abstract: A method of joining together two tubular metal members (11 and 12) which includes forming opposed slots (13) in one end of one member (11) of the two members to form two prongs or fingers (15), and flattening and curling or otherwise shaping the prongs or fingers (15) to form an integral sleeve or socket having an axis at an angle with respect to the axis of the said one member (11) and receiving the other member (12). <IMAGE>
Patent GB-2073254-A (GB)
Title: Ion implanting metal coated ferrous surfaces
IPC: C23C26/00
Filed: 1981-04-08
Abstract: The wear and/or corrosion resistance of ferrous materials, is improved by coating with a layer of tin, cobalt, silver or gold, and then subjecting the coated surface to bombardment with ions of a light species so as to cause the coating metal to migrate into the said surface of the body. The preferred ions are N<+>, B<+>, C<+>, Ne<+>.
Patent GB-2074247-A (GB)
Title: Rotary Positive-displacement Pumps
IPC: F04C2/344
Filed: 1981-04-16
Abstract: A pump of the sliding-vane type or pivoted-vane type comprises a rotor (12) eccentrically mounted in a bore (11) of a housing. Vanes (17) on the rotor engage with a rotatable cylindrical sleeve (18) supported in the bore (11) by a hydrodynamic bearing, fluid therefor being introduced through bores (25). Lubricant channels (29) may be formed in the rotor end-faces. The wall of the bore (11) and/or the outer surface of the sleeve (18), and also the rotor end-faces and/or the inner surfaces of the housing end-walls, may be coated with a material having a low coefficient of friction e.g. a plastics material containing particles of graphite, molybdenum disulphide or P.T.F.E. <IMAGE>
Patent GB-2078826-A (GB)
Title: Drill bit with dispersed cutter inserts
IPC: E21B10/50
Filed: 1981-04-21
Abstract: A roller cutter earth boring drill bit has hard metal inserts 47 in its cutter shells that are spaced to eliminate rows. Each insert 47' has a surrounding boundary zone with inner 53 and outer 55 loops corresponding to the minimum and maximum desired distances between centerlines of inserts, respectively. Each insert 47' has at least one insert 47'' located randomly in its boundary zone. In selecting the locations, a first insert 47' is arbitrarily located. The location of a second insert 47'' is randomly selected within the boundary zone of the first insert 47'. The location of a third insert 47''' is randomly located within the boundary zone of the second insert 47'', so long as it does not come any closer to the first insert 47' than the minimum desired distance between inserts. Each succeeding insert is chosen in this manner. <IMAGE>
Patent GB-2096906-A (GB)
Title: Production of anhydrous ethyl alcohol
IPC: B01D3/36
Filed: 1981-04-21
Abstract: In the preparation of anhydrous (e.g. 99.7% by weight) ethyl alcohol it is common to use an entrainer, such as benzene, to separate the water from an azeotropic mixture of water and alcohol. According to the present invention, di-isopropyl ether is used as the entrainer, giving rise to savings in steam consumption, improved yield and other advantages. In a first column (6) a feed of preheated degassed weak alcohol (e.g. 2 to 8% by weight) is converted to a new azeotropic mixture, taken off as liquid, and fed by a line (25) to a second column (18) wherein there is formed an azeotrope with di-isopropyl ether. The product anhydrous alcohol is stripped off at line (26) while the vapour is condensed in a condenser (2) and fed to a separator (33) from which an entrainer-rich phase is refluxed to the column (18), while an aqueous phase is passed to a further column (35) for recovery of the entrainer and a weak alcohol, which is recycled. <IMAGE>
Patent GB-2097655-A (GB)
Title: Panel mounted article holders
IPC: A47F5/08
Filed: 1981-04-30
Abstract: A holder intended for use with a perforated panel (11), and having a backplate (1) and an article supporting projection (2) projecting forwardly from the backplate (1), the backplate (1) being provided on its rear face with at least one pair of hooked tangs (6, 7) for location in a corresponding number of pairs of holes (12, 13) in the panel (11), is also provided on its rear face with a rearwardly directed annular lip (8) which surrounds a threaded bore (9) extending through the backplate (1), the arrangement being such that, when the holder is used with a panel (11) having holes (12, 13) spaced apart the same distance as the two tangs (6, 7) the annular lip acts as a detent which engages one of the holes to resist accidental dislocation of the holder, and the arrangement also being such that, with the lip (8) causing such interference, a screw (14) may be screwed through the threaded bore (9) to provide a positive restraint to prevent removal of the backplate (1) from the panel (11). With the present invention, even if the owner of the system fails to secure a screw (14) in the threaded bore (9), there is still some resistance to the removal of the backplate (1) from the panel (11). <IMAGE>
Patent GB-2077235-A (GB)
Title: Facilitating the opening of folded signatures for collation
IPC: B65H5/30
Filed: 1981-05-05
Abstract: To facilitate the opening of folded signatures prior to collation thereof, an electrostatic charge is provided on each stack 13 of sheets before the stack is folded into the signature 17. Thus sheet parts charged with the same polarity confront one another on the inside of the folded product. The stacks may be cut from a multi-layer, printed web after a charge has been applied to the web by a high tension electrode arrangement disposed transversely to the web between pinch roller pairs. <IMAGE>
Patent GB-2077325-A (GB)
Title: Mining unit
IPC: E21C25/10
Filed: 1981-05-22
Abstract: The mining unit for coal mining combines, according to the invention, has a frontal disc which is cup-shaped and its longitudinal section consists of a flat ring (13) on the periphery and an arcuate area (25) narrowing towards a hub (1) in the direction towards the rear edge of the unit. The disclosed invention can be applied especially for mining of a wet coal bed in coal mines. <IMAGE>
Patent GB-2080496-A (GB)
Title: Heat sensitive valve
IPC: F16K17/38
Filed: 1981-05-28
Abstract: A valve for controlling fluid flow has a reciprocable valve stem (14) settable between open and closed positions. The structure for maintaining the valve stem in a set position against fluid forces acting in the valve to move the stem to a closed (or open) position includes a fusible plug (19) through which such forces are transmitted from the stem to a fixed cap (17). The fusible plug melts on the valve reaching an excessive temperature and the fluid forces force the stem to the closed (or open) position. The cap provides an enclosure for the fusible element and in one form (Figures 1-3) is apertured to allow controlled extrusion of the melting plug preventing excessively violent release of the stem. In another form (Figure 4) the plug may extrude more readily to allow faster stem release but is keyed in the valve to prevent explosive release of the plug. <IMAGE>
Patent GB-2105598-A (GB)
Title: Inertia wheel drive mechanism for toy vehicles
Inventor: CHUEN FONG CHEUNG
IPC: A63H29/20
Filed: 1981-09-16
Abstract: A flywheel is connected by gears to a toy vehicle wheel shaft 1 and a uni-directional clutch 2-5 is provided in the gear train for transmitting drive in one direction between the driving member and the driven member, the clutch being arranged automatically to disengage the transmission of drive when the driven member exerts an excessive torque reaction. <IMAGE>
Patent GB-2086982-A (GB)
Title: Supporting lengths of chain in draw chain drives
IPC: E05F15/16
Filed: 1981-11-03
Abstract: A mounting rail 1 for a draw chain drive arrangement provided for a door, is provided with vertical webs 21 which extend longitudinally of the rail and have inturned flanges 22 which form between them gaps for receiving the pins or rollers 23 of the chain 2. Above and below the flanges 22, spaces which are wider than the gaps receive the side plates 24 of the chain. <IMAGE>
Patent GB-2089507-A (GB)
Title: A Combustion Calorimeter
IPC: G01N25/26
Filed: 1981-11-09
Abstract: A combustion calorimeter comprises a pressure-resistant pressure vessel or tank (10), a combustion vessel (11) of a corrosion resistant material, an oxygen supply and combustion gas discharge pipe (19) extending into the combustion vessel, and a valve (22,38) connected into said line and serving to control the oxygen supply or the combustion gas discharge (exhaust), respectively. For the ignition of a sample in the vessel (11) hot-wire 33 is provided. Electric power to the wire is supplied through the pipe (19) or through a valve control element (31) passing through the pipe. The other end of the wire is connected to the vessel 11. With this arrangement only one aperture in the pressure vessel 10 is required. <IMAGE>
Patent GB-2090836-A (GB)
Title: Method for the preparation of tocotrienol concentrates from oleaginous materials
IPC: C07D311/72
Filed: 1981-12-14
Abstract: A tocotrienol concentrate is obtained from an oleaginous starting material by dissolving or extracting the oleaginous material in or with a non-polar organic solvent preferably after removal of free fatty acids, contacting the solution so-obtained with an anionic ion-exchange resin to adsorb the tocotrienols and eluting the thus adsorbed material with an eluant which may be a mixed solvent of an alcohol and an acid, preferably followed by further purification by column chromatography or other suitable method. A concentrate containing 70% by weight or more of the tocotrienols and vitamin E may be obtained and is useful as an anti-oxidant or a physiologically active substance.
Patent GB-2094890-A (GB)
Title: Rotary positive-displacement fluid-machines
IPC: F01C1/344
Filed: 1982-03-04
Abstract: In a machine of the sliding-vane type, which may be an I.C. engine (as shown), the inner peripheral wall of the casing 30 has a non-uniform radius and inlet and exhaust ports 34, 38 are formed in e.g. one or each of the end plates 32 of the casing. A spark plug 36 may be mounted in the said wall. The vanes 12 may be guided by roller bearings 24 lodged in the slots therefor in the rotor 10; and the inner ends of the vanes may have flanges 16 to which the pressure of the working fluid is applied through passages 26 to urge the vanes towards the said wall of the casing. The configuration of the inner peripheral wall of the casing may be modified to form a combustion chamber, Figure 3 (not shown). The machine may be adapted for use as a compressor or a pump. <IMAGE>
Patent GB-2102472-A (GB)
Title: Valve body for a hydraulic jar
Inventor: HEIDMANN GERHARD
IPC: E21B4/14
Filed: 1982-03-17
Abstract: In a hydraulic jar with a piston which is pulled through a constriction in a chamber with working fluid, the valve body is formed as a two-part sleeve (14) from parts (16 and 17) which lie coaxially one inside the other and have different coefficients of temperature expansion. A gap between the parts of file sleeve serves as a throttle section through which the working fluid can escape when the sleeve is pulled through the constriction. As a result of the different coefficients of temperature expansion of the two parts (16 and 17), the throttle action increases with rising temperature and compensates for the decreasing viscosity of the working fluid. As a result, the time delay in delivering a percussion stroke becomes independent of temperature. <IMAGE>
Patent GB-2118668-A (GB)
Title: Window frames
Inventor: LITCHFIELD LEON GEORGE
IPC: E06B3/964
Filed: 1982-06-22
Abstract: The invention relates to a window frame formed of a plurality of hollow extruded plastics frame members 10 connected at right angles to one another by plastics junction pieces 14, each of which has a body portion and spigots 21 projecting from the body portion at right angles to one another, to be a tight push fit in the open ends of the frame members. Internal tie members 40 pass through the frame members and junction pieces to increase the rigidity of the assembled structure. <IMAGE>
Patent GB-2113534-A (GB)
Title: Deep frozen tart cutting apparatus
Inventor: DEN HERTOG PIETER
IPC: A21C15/04
Filed: 1982-07-30
Abstract: Tart cutting apparatus comprises a tart support base (5) divided into a number of separate segments (3) equal in number to the number of slices into which the tart (6) is to be cut, and two sets of radially directed blades (14, 15) arranged in tiers one above the other. The blades are slightly inclined to the horizontal. The inner ends of the blades (14, 15) support a tubular cutter (13) which removes a central core of small diameter thereby ensuring that the slices do not have pointed tips which break off. The arrangement of the blades is such that the blades of each tier complete a cutting action before the next succeeding blades commence a cut The segments (3) are mounted on rods (2). <IMAGE>
Patent GB-2107021-A (GB)
Title: Jet engine air intakes
Inventor: MACKRODT DR P ARMIN
IPC: F02C7/04
Filed: 1982-09-16
Abstract: In a method for obtaining a uniform total pressure distribution in the compressor inlet plane of the inlet duct (1) of air-intake engines the incoming air in the region of the boundary layer is removed from the inlet duct (1) by way of openings in the walls (9, 10) bounding the inlet duct. In order to avoid the particularly disturbing influence of the corner boundary layer (19), in the region of at least one of the intersection edges (13) of the walls (9, 10) of the inlet duct (1) the air is removed in accordance with the thickness of the boundary layer (corner boundary layer 19) to be expected there. The openings, which may be in the form of slots or holes (13), are disposed, one behind the other in the main direction of flow, in the region of the corner boundary layer. <IMAGE>
Patent GB-2129047-A (GB)
Title: Spring hinge
Inventor: GULLIVER WILLIAM CHARLES
IPC: E05F1/10
Filed: 1982-09-24
Abstract: A spring hinge for opening and closing a wing member 1 pivotally attached to a support member 15 wherein a location 27 on the wing member 1 and a location 25 on the support member 15 are positioned such that a movement of the wing member 1 from a fully opened 5 or a fully closed 1 position causes a reduction in separation of the two said locations, biasing means 23 being provided to urge apart the said two locations. The biasing means may, for example, be a leaf spring. An embodiment of spring hinge is described for use in furniture doors. <IMAGE>
Patent GB-2128838-A (GB)
Title: Digital television signal reproducing methods and apparatus
Inventor: WILKINSON JAMES HEDLEY
IPC: H04N5/93
Filed: 1982-10-11
Abstract: Apparatus for reproducing a digital television signal at a speed slightly higher or lower than the standard speed comprises a rotatable drum 2 about which a video tape 3 is transported, a reproducing head 4 mounted on the drum 2 for reading the video signal from recorded tracks on the video tape 3, arrangements 6,7 for rotating the drum 2 at a non-standard speed and for transporting the video tape 3 at a non-standard speed corresponding to the non-standard speed at which the drum 2 is rotated, so that the head 4 correctly scans the tracks, and a synchronizer 8 comprising a store into which the reproduced television signal is written at the speed of reproduction from the VTR 1 and from which the video signal is read at a required standard synchronized speed. <IMAGE>
Patent GB-2109831-A (GB)
Title: Pin for textile machines and apparatus and method for its production
Inventor: EGERER JOSEF
IPC: D01D5/42
Filed: 1982-11-16
Abstract: A pin has the shape of a lozenge with rounded corners or of an ellipse in cross-section in the working region. Such a pin is produced by a stamp and stamp support which has a gable- roof-like recess, the cable axes being parallel to one another. Wire is supplied to such a stamping press while being unrolled from a supply spool, there a shaping stamping is carried out and the resulting excess is punched off by a device disposed immediately afterwards. Pins so produced can be closely spaced and offer low-combing resistance while retaining high bending strength. <IMAGE>
Patent GB-2119119-A (GB)
Title: Apparatus and methods of staining biological slides
Inventor: JACKSON FRANK W
IPC: G01N1/31
Filed: 1983-04-27
Abstract: Method and apparatus for neatly and efficiently coating microscope slides with a staining liquid. One or more slides (20) are dipped into a pool of liquid (60) partially filling a chamber in a container 30. The chamber has a cross-section conforming closely to the slide exterior so that slide immersion causes the liquid level to rise upwardly and cover all those portions of the slides which may contain a specimen to be stained. To stain a multiplicity of slides simultaneously, the slides are clamped in a holder between spacers which hold them parallel and spaced apart by a small predetermined distance, and the clamped slides are then held by the holder during subsequent immersion and removal. A special inexpensive arrangement of case and slidable drawer with wedge-shaped side portions is used to facilitate fast clamping and unclamping of the slides. <IMAGE>
Patent GB-2140608-A (GB)
Title: Energy conversion devices using liquid sodium and beta alumina ceramic electrolyte material
Inventor: STACKPOOL FRANCIS MICHAEL
IPC: H01M10/39
Filed: 1983-05-24
Abstract: An energy conversion device employing beta alumina electrolyte material and sodium, for example a sodium sulphur cell, has wicking means (12) adjacent a surface of the electrolyte material (10) to maintain that surface wetted with liquid sodium, which wicking means is formed of an iron chromium aluminium alloy also containing yttrium. <IMAGE>
Patent GB-2121894-A (GB)
Title: Making a gasket by electrophoresis
Inventor: ATKINSON ALAN WILLIAM
IPC: F16J15/12
Filed: 1983-05-26
Abstract: In a method of making a gasket by forming a pattern P of sealant material on a substrate, an electrically non-conductive inverse Q of the desired pattern is formed on the substrate by applying thereto an electrically non-conductive photosensitive layer, irradiating selected areas of said layer, and then removing those areas or the corresponding unirradiated areas. The substrate carrying the electrically non- conductive inverse Q of the pattern is then employed as an electrode in electrophoresis, or as an ion- permeable membrane adjacent to such an electrode, and the material to form the desired pattern P is deposited electrophoretically on the substrate at the areas unprotected by the electrically non-conductive inverse. <IMAGE>
Patent GB-2141102-A (GB)
Title: Packaging system
Inventor: REID JOHN NICHOLAS
IPC: A47F5/00
Filed: 1983-06-10
Abstract: A packet made of at least semi-rigid plastics material has two parts which form respectively a container 11 and a closure 12, the closure part 12 having a shoulder 20 shaped to match the outline of at least a part of the opening of the container part and both the shoulder 20 and said part of the opening being undercut or keyed so that they interengage to retain the closure over the opening. The two parts 11, 12 are preferably formed integrally with a hinge line 17 between them, and the dimensions are such relative to the hinge line that in the closed position the two parts 11, 12 are biassed to retain the interengagement. <IMAGE>
Patent GB-2130301-A (GB)
Title: Apparatus for preheating intake air for an internal combustion engine
Inventor: ABTHOFF JORG
IPC: F02N19/10
Filed: 1983-11-11
Abstract: The apparatus comprises a lubricant circuit (22), Fig. 2 (not shown), or a coolant circuit 21, Fig. 1, an intake air system 1, 4 and an exhaust-gas system 6. A heat-exchanger 7 is assigned to the stream of exhaust gas, through which heat- exchanger the intake air of the internal combustion engine can flow. In order to avoid effects which degrade the operating behaviour of the internal combustion engine, the intake air heated in the exchanger 7 is admitted to a heat-exchanger 8 which is connected to either the engine lubricant circuit (22) or to the engine coolant circuit 21, whereby the heated air assists in warming up the lubricant or coolant more rapidly. <IMAGE>
Patent GB-2132188-A (GB)
Title: Spray system for glass moulds
Inventor: JOHNSON STEVEN
IPC: B05B15/70
Filed: 1983-12-15
Abstract: A spray system for spraying lubricant into an open topped glass forming mould located on a glass forming machine, when the mould is in its closed position. A nozzle (28) is carried on a support (26) movable between advanced and retracted positions, the nozzle being in communication with a source of lubricant and of compressed air via pipes (30). The nozzle is so arranged that when the support is in the advanced position the nozzle is capable of spraying a lubricant into the mould cavity (12), the apparatus being controlled so that no spraying occurs during normal glass forming cycles of the machine and spraying is effected in the place of a glass forming cycle once every preset plurality of cycles. A signal from a control unit prevents the supply of a gob (18) to the mould and simultaneously moves the support over the mould cavity. <IMAGE>