baber/WOPTO huggingface dataset:
Patent GB-2123532-A (GB)
Title: Slide valve seal
Inventor: TINNER FRIEDRICH
IPC: F16K3/20
Filed: 1983-07-12
Abstract: The slide valve is provided with a separate sealing structure 7 which surrounds the through flow opening of the valve casing in an annular fashion  and which supports the seal proper 8. This sealing structure which is movable by means of a suitable closing mechanism can be operated independently from the pressure or differential pressure, respectively, present in the valve. The annular structure 7 is sealed to the valve casing by a bellows 9. <IMAGE>
Patent GB-2121395-A (GB)
Title: Reducing slurry viscosity of kaolinitic clays
Inventor: GINN MICHAEL WARREN
IPC: D21H19/40
Filed: 1982-12-02
Abstract: The low shear, slurry viscosity of a kaolinitic clay that is contaminated with one or more forms of expanding clay, especially degraded illite, is reduced by mixing the clay with a source of cationic potassium, e.g., potassium bicarbonate, and then heating the potassium-treated clay to a temperature of at least about 100<o>C, e.g., in the range of about 100 to 300<o>C.
Patent GB-2127737-A (GB)
Title: Moulding covers on articles
Inventor: CHARLEBOIS LEONARD JOSEPH
IPC: H02G1/14
Filed: 1983-09-12
Abstract: A method of sealing an article comprises heating solid plastic material in a chamber 10 into a flowable state and then forcing the material from the chamber 10 into a reservoir 20 in a manually portable device 12. While in the reservoir, the material is maintained molten and flowable by a heater jacket 24 and the material is subsequently forced from the reservoir into a mould cavity partly defined by the article to be sealed at a sufficiently fast rate to fill the cavity before flow passages into the cavity become blocked with hardening material. A manually operated piston 28 is used to discharge the material from the reservoir 20. <IMAGE>
Patent GB-2130587-A (GB)
Title: Novel 6a-methylcorticoids and their manufacture and use
Inventor: WIECHERT RUDOLF
IPC: C07J5/00
Filed: 1983-10-17
Abstract: 6 alpha -Methyl corticoids of formula I    <IMAGE>  (I)  wherein   is a single bond or a double bond, R is acyloxy of up to 8 carbon atoms, and X is chlorine, hydroxy, or acyloxy of up to 8 carbon atoms, are pharamacologically effective substances.
Patent GB-2132913-A (GB)
Title: Fluid filter
Inventor: KOHN HEINZ-GERHARD
IPC: B01D63/14
Filed: 1983-12-08
Abstract: A filter for water filtration, particularly for the depyrogenisation and/or sterilisation of infusion solutions, com- prises a selectively permeable flat membrane which suitably has a cut-off of at least 5000 daltons and a pore size at most equal to 0.2 micrometres and which is supported at both sides by a planar support fleece or cardboard and folded together with these supports to form a pleated filter unit (17). A parallelepipedonal housing (1,2) with at least one inlet (4) and a vent at a filling side and an outlet (6) at a pure side encloses the filter unit (17) at all sides. The housing (1,2) is of asymmetrical cross-section in that a fluid distribution space (18) is formed along the filter unit fold edges on the filling side and the fold edges on the pure side lie against the facing housing wall surface. <IMAGE>
Patent GB-2131933-A (GB)
Title: Installation for charging industrial furnaces
Inventor: SCHMIDT GUNTHER
IPC: F27D99/00
Filed: 1983-12-16
Abstract: An installation for charging an industrial furnace, particularly a metal smelting furnace, comprises a charging cage (8) with openings (11) for passage of flue gas in its floor (10), means for mounting said cage for swivelling about a pivot axis and a drive installation (13) for swivelling the cage (8) between a charge pre-heating position and a charging position (8'). The installation is to be installed in an industrial furnace in a flue stack (6) so that the cage (8) is above a smelting chamber (2). <IMAGE>
Patent GB-2159356-A (GB)
Title: A magnetic compass adapted to provide a digital read-out
Inventor: WOODFINE CLIVE FRANK
IPC: G01C17/04
Filed: 1984-03-26
Abstract: A magnetic compass provides a digital read-out by virtue of a magnetic disc member bearing concentric optical coded tracks 13a to 13f. A light guide member 16 reflects light twice through 90 DEG from an LED 17 to seven optical sensors 15a to 15g, six of which receive the light through the optical tracks 13. The optical sensors 15 are arranged in two mutually staggered rows so that each two optical sensors associated with mutually adjacent tracks lie on mutually different radii. This maximises the spacing between such sensors so as to avoid cross talk. The compass is shallow, due to the arrangement of the illuminating means, including particularly the light guide member 16. <IMAGE>
Patent GB-2140861-A (GB)
Title: Leaf-like two-way self-resettable hinge
Inventor: HWANG LIN-JAUN
IPC: E05F1/06
Filed: 1984-04-19
Abstract: A leaf-like two-way self resettable hinge, having a helical top edge front which has a steeper slope 121 at the bottom of the helix than the top 12' and a cornered base protrusion on respective ones of two complementary coupling laps 11, 22 through which a spindle is provided to hold the two laps in position, such that the cornered base 221 protrusion will move up along the helical top edge when a door provided to which the hinge is attached is pushed open. Upon release of the door the base protrusion slides down the same top edge front, under gravity of the door so as to bring the door to a full closure. In an alternative embodiment a double swing door hinge is provided by an additional leaf-piece to lie between the aforementioned laps and by incorporating an additional spindle. <IMAGE>
Patent GB-2162798-A (GB)
Title: Apparatus and method for applying permanent eye lid liner
Inventor: ANGRES GIORA G
IPC: A61F2/02
Filed: 1984-08-07
Abstract: A method and apparatus for applying a permanent cosmetic eye liner to the edge of an eye lid by implanting a pigment solution along said edge and/or the lash line. The eye lid is anaesthetized and stabilized, and an implement having a series of reciprocating needles 108 coated with a pigment solution is used to implant the pigment solution into the dermal and/or epidermal layer of skin beneath the eye lid edge. Guide means Figures 2, 3, 5, 6 & 7 (not shown) are provided to guide the implantation of pigment solution in the proper, pre-selected location. <IMAGE>
Patent GB-2148970-A (GB)
Title: A metal-frame curtain-wall structure with sound and heat ruptures
Inventor: MEUNIER GILLES
IPC: E06B3/62
Filed: 1984-09-26
Abstract: A metal-frame curtain-wall structure with heat and sound ruptures, these juxtaposed frames containing the different filling elements - breast wall, dormant or opening glazed window frame, etc. - being each associated with a device for positioning and fixing it on the fabric of the building and being mutually adapted so as to satisfy the requirements of alignment and sealing of the frontage, characterized in that it comprises, for the sealing connection of the frames (1), instead of the dry joint devices, an elastomer joint cast in situ (13) whose adherence to the support surfaces and perfect continuity guarantee good air impermeability. <IMAGE>
Patent GB-2165553-A (GB)
Title: Steel powder compositions and sintered products
Inventor: BEE JOHN VERDUN
IPC: B22F1/00
Filed: 1984-10-10
Abstract: Steel powder compositions, particularly of tool or alloy steel, for production of metal articles by compaction and sintering contain as additives refractory particles which do not dissolve in a steel matrix and thus serve to maintain a fine grain size. The additives are selected from carbides of niobium, tantalum, titanium and hafnium, the diborides of titanium, zirconium and hafnium and the nitrides of vanadium, titanium, zirconium and hafnium in a quantity of 0.1 to 2.0% by weight.
Patent GB-2152771-A (GB)
Title: Power supply circuit
Inventor: GURWICZ DAVID
IPC: H02M1/42
Filed: 1984-11-23
Abstract: AC mains voltage is full-wave rectified and applied to a storage capcitor 22 providing input to an inverter 24. The voltage applied to the capacitor is maintained above the peak mains voltage by an additional voltage which is applied to the output of the rectifier 20. The additional voltage is produced by a second rectifier circuit 50 fed with a high frequency input from a transformer 42 having its primary 44 across the inverter output. The additional voltage is applied by a filter 76, 74. The signal from the transformer is modulated by PWM by the action of a control circuit 70 which governs the firing of the SCR's 52, 54. The control circuit uses error signals including a signal representing the difference between the actual current waveform and a predetermined waveform to ensure that the waveform of the current drawn from the mains 10 is as required e.g. sinusoidal and in phase with the mains voltage. <IMAGE>
Patent GB-2158256-A (GB)
Title: Coordinate plotter
Inventor: SENJU TSUTOMU
IPC: B43L13/00
Filed: 1985-04-11
Abstract: In a coordinate plotter with interchangeable pens the position of each pen in the draughting head will be slightly different. In order to measure and correct for this an initialising process is employed using the vernier principle. A first pen draws main scale line segments (R0 to R10) dividing a predetermined distance L equally into n divisions. The offset of another pen relative to the first is then determined by using it to draw auxiliary scale line segments (Q0 to Q11) dividing the same length L into n + 1 divisions. Because of the offset positions of the pens the ends (R0, Q0) of the scales will be offset by a distance  DELTA xn. The position where one of the main scale line segments (R4) coincides with one of the auxiliary scale line segments (Q4) can be identified and thus the offset  DELTA xn can be determined accurately. <IMAGE>
Patent GB-2158664-A (GB)
Title: Television signal generator
Inventor: DAY MICHAEL
IPC: H04N9/45
Filed: 1985-05-02
Abstract: A television signal generator for producing low-definition colour graphics/text for cable distribution comprises an encoder 85 receiving colour difference signals for modulation on a sub-carrier (from oscillator 89) to produce an encoded chroma containing bursts of unmodulated sub-carrier as a phase reference, which is locked to an external reference chroma by: (i) in a first locked loop 70-77 regenerating a reference sub-carrier from demodulated reference colour bursts: (ii) in a second locked loop 84-89 controlling the oscillator 89 to lock the colour burst of the encoded chroma to the reference sub-carrier. The generator uses information from any of a number of sources, namely a terminal for a viewdata database, a teletext decoder, a television studio, a video recorder, a keyboard, or an auxiliary solid-state store. <IMAGE>
Patent GB-2157842-A (GB)
Title: Optical fibre sensing apparatus
Inventor: HENNING MICHAEL LAURENCE
IPC: G01H9/00
Filed: 1985-06-13
Abstract: An interferometer comprises a laser (21) which generates coherent light pulses and launches them via a first optical fibre to an optical switch (23). The optical switch (23) is arranged to provide selected connections between the first optical fibre and/or a second optical fibre (24) and a third optical fibre connected to the switch thereby enabling selective routing of predetermined optical pulses between predetermined optical fibres according to requirements. The optical switch (23) may be in the form of an integrated cross-over optical switch (1) or a Bragg cell. <IMAGE>
Patent GB-2164439-A (GB)
Title: Plate heat transfer apparatus
Inventor: GRAY ROBIN MCILWRAITH
IPC: F28F3/10
Filed: 1985-09-11
Abstract: A generally rectangular heat transfer plate 1 has ports 5, 6, 7, and 8 adjacent the corners of the plate, bridge zones between the ports 5, 6, 7 and 8 and distribution regions 3 and 4, port recesses 5b, 6b, 7b and 8b to receive gaskets 5a and 8a to isolate the ports from the bridge zones and bridge recesses 5c, 6c, 7c and 8c to receive gaskets 5d and 8d to isolate the bridge zones from the distribution regions 3 and 4. In order to locate gaskets and possibly also strengthen the recesses, the bases 11 of the bridge and/or port recesses which are to receive gaskets may be provided with pressed dimples 12a of less height than the depth of the recess. The dimples 12 extend into the recess in an ungasketed recess, and out of the recess in a gasketed recess so as to abut the strengthen the ungasketed recesses. In order to strengthen the port and bridge areas, the bridge recesses 5c, 6c, 7c and 8c may undulate in and parallel with the plane of the plate towards and away from the associated ports. The port recesses 5b, 6b, 7b and 8b may likewise undulate towards and away from the associated ports. <IMAGE>
Patent GB-2172399-A (GB)
Title: Device for converting cyclic motion into digital output
Inventor: GORDON ALAN JOHN
IPC: G01R21/00
Filed: 1986-03-11
Abstract: The proposed device comprises at least one sensor 18 and a computing/display package 22. The sensor detects complete cycles of cyclic, motions, and the computing/display package converts the signals into desired digital information and displays aid information. A flying lead as 28 is used to connect the sensor 18 to the package 22. The sensors 18 are positioned to detect the cyclic motion of pointers or discs of gas and/or electricity meters. The sensors may photoelectrically detect a pointer, line or other marking and may use yellow or IR light which is preferably modulated. Alternatively, detection may be capacitative or inductive. The computing package is employed to evaluate the amount of gas or electricity used or a prediction of the amount that will be used in any period and/or the cost thereof. The shape of the sensor (two concentric arcuate boundaries) provide ease of fitting in position with accuracy. Self adhesive material is employed to locate it in place. <IMAGE>
Patent GB-2176671-A (GB)
Title: Separation overlay
Inventor: ATTEW JAMES EDWARD
IPC: H04N9/75
Filed: 1986-06-02
Abstract: Foreground and background colour video signals are processed to provide separation overlay employing a background and a foreground of different brightness (luminance) levels, the keying signal being derived by clipping through peak luminance signals obtained by summing the R, G and B signals. <IMAGE>
Patent GB-2181203-A (GB)
Title: Welding clamp
Inventor: THALMANN ALFRED
IPC: B25B11/00
Filed: 1986-06-05
Abstract: A plastics member 2 having a C-shaped part 3 is to be welded to a plastics pipe 4 whilst clamped to it by a clamping device 1. A part 9 of the device 1 is pressed by a spring 10 into a pocket 3a in the part 3 and towards a part 12 to which a clamping band 6 is fixed. A connecting member 14 is fixed to the band 6 and projects into a pocket 3b in the part 3. The spring pressure, controlled by a spindle 7, causes the part 3 to be pressed against the pipe around a portion of the periphery of the latter and the band 6 to be pressed against the pipe around a substantial portion of the periphery of the latter.   <IMAGE>
Patent GB-2191600-A (GB)
Title: Apparatus for measuring distances
Inventor: BENNISON ROGER
IPC: G01C3/10
Filed: 1986-06-10
Abstract: The apparatus comprises a source for directing a beam of light towards a surface (9) whose distance is to be measured, a sight or sights for observing a selected part of the surface, means for directing the beam of light to impinge on the part and an arrangement for indicating the inclination of the beam with respect to the line of view. A particular embodiment comprises a housing (2), a laser source (1) located within the housing, together with mirrors (4,5) for directing light from the source to a selected part which is also observed through a telescopic sight (8) mounted upon the housing. Means may also be provided for effecting movement of the beam in a second plane different from that in which beam movement takes place for measuring purposes. Alternatively, the telescopic sight may be capable of angular movement. <IMAGE>
Patent GB-2178524-A (GB)
Title: Hobs for electric cookers
Inventor: BRUNTON DAVID MCKAY READ
IPC: F24C15/10
Filed: 1986-07-21
Abstract: A hob comprises a main panel (16) having hotplate openings (14) in which are supported respective hotplates having glass-ceramic plates (12) in such a way that the top surface of each plate (12) is flush with the top surface of the main panel (16), the plate (12) meeting the panel (16) without deviation thereof. Thereby, the top surfaces close their respective openings (14) to prevent spillage from penetrating around the hotplate edges. <IMAGE>
Patent GB-2193026-A (GB)
Title: Games assembly using a rotary display
Inventor: LAKE RUNAH GARTH
IPC: A63F9/18
Filed: 1986-07-22
Abstract: A games assembly comprises a portable housing 1, 2 which is openable to provide a playing region, and a rotatably mounted display 11, 12, 13 on which question information can be displayed by one player, and then rotated for presentation to an opposing player for responding thereto. As shown, a beam 11 is manually rotatable on a pillar 13 and carries display cards 14, 15 & 16 suspended from a rod 17 for use in a quiz game. Alternatively, the display on the beam 11 may be electronic using a keyboard and liquid crystal or L.E.D. displays. <IMAGE>
Patent GB-2195796-A (GB)
Title: Square root circuits
Inventor: HAWKES HENRY WILLIAM
IPC: G06G7/20
Filed: 1986-09-26
Abstract: A circuit for obtaining an output proportional to the square-root of an input voltage comprises a circuit- portion R14, D11, R15, R16, C1 having the characteristic that the current therethrough is proportional to the square of the voltage thereacross. The circuit-portion is fed from a high-resistance source so that the current is substantially dependent only on the value of the input voltage, end the output is taken across this circuit-portion. The latter suitably comprises a Schottky point- contact mixer diode (D1 Fig. 1), or a Schottky barrier mixer diode D11 connected in series with a small resistor R14 to give the required square law characteristic, and appropriately biased relative to the reference level of the input voltage by R15, R16 and C1. At least one further diode, suitably an oppositely- poled switching diode D12, (D2 Fig. 1) is connected in parallel with the above circuit-portion, arranged to short-circuit the output when the input polarity reverses about the reference level. For a bi-directional input a pair of such square law circuits, one of whose outputs is inverted and an adder may be provided, (Fig. 4, 5). <IMAGE>
Patent GB-2196416-A (GB)
Title: Handbrake lever mechanism for automobiles
Inventor: PRICE FRANK CHRISTOPHER
IPC: B60T7/10
Filed: 1986-10-23
Abstract: A handbrake lever mechanism for an automobile comprises a handbrake lever 10 which is formed from sheet metal bent into a generally U-shaped section, a rearward portion 10b of that U-shape enclosing a pivotal mounting for the handbrake lever. Also enclosed within the portion 10b is a mechanism comprising a pair of plates 28 pivotally mounted at 32 which support a cam follower 38, so that the initial few degrees of movement of the handbrake lever 10 result in an appreciable movement of a cable connector 36 mounted between the plates 28 by pivot pin 32. Continued movement of the handbrake lever results in a much higher mechanical advantage. The initial movement takes up the slack in the handbrake cable, whereas continued movement is effective to apply the brakes. The shape of the cam track 40 formed in the mounting 12 can be altered at will to provide the optimum characteristic for the handbrake lever mechanism, which has no unsightly surface-mounted parts or cable anchorages. In an alternative embodiment (Fig. 5, not shown) the cam track (50) is formed in each of the plates 28 and the cam follower (46) is mounted on the handbrake lever 10 between opposite sides of the U-shaped mounting portion 10b. <IMAGE>
Patent GB-2200215-A (GB)
Title: Determination of projectile velocity
Inventor: HODGES PETER
IPC: G01P3/66
Filed: 1987-01-13
Abstract: Apparatus 14 for determining the velocity of a shell 13 in, or leaving, a large calibre ordnance gun barrel 10 has coil means 15 wound around the barrel, adjacent the muzzle, coil energising means 16 to pass direct current through it to form a magnetic field in the air core of the muzzle and measuring means 19 to determine the back-emf generated in the coil when a shell passes through the field and temporarily replaces the air core. The large rate of change of magnetic flux caused by a ferromagnetic shell moving at high speed enables a coil of modest ampere turns to produce a back-emf of several hundred volts. The emf is directly related to the shell velocity and is measurable with such resolution that small changes in velocity can be resolved, enabling the velocity measurement to be used in operation in a ballistics computer for subsequent rounds. The coil means may take other forms, such as a pair of coils disposed on an axis across the bore and folded around the barrel as saddles (Fig. 5 not shown). The apparatus also responds to non-ferromagnetic conductive projectiles by virtue of their movement through its magnetic field in accordance with Lenz's law. <IMAGE>
Patent GB-2200799-A (GB)
Title: Sensing conveyed objects
Inventor: TAYLOR GORDON
IPC: H01H21/28
Filed: 1987-01-29
Abstract: There is described a device for sensing the passage of a plurality of irregularly spaced objects such as eggs along a path such as a conveyor. Above the conveyor (2) is mounted a gate (12) pivoted about a horizontal axis (11) so as to be lifted by objects passing along the conveyor (2). A switch (16) provides an electrical output to a counter when the gate (12) is lifted, the switch (16) being operated by a cam (17, 18) so that initial movement of the gate (12) trips the switch (16) but further movement of the gate does not affect the switch. Successive deflectors (20) arranged upstream of the gate along the conveyor (2) on alternate sides urge the objects in opposite directions laterally of the conveyor (2) to prevent a plurality of objects reaching the gate (12) simultaneously. <IMAGE>
Patent GB-2187906-A (GB)
Title: Electronic tuners
Inventor: IJICHI SADAYOSHI
IPC: H04N5/44
Filed: 1987-02-23
Abstract: An electronic tuner for use in a television receiver or a video tape recorder has a plurality of tuning circuits 1 to 3 and a local oscillator circuit 4. Each circuit includes a varactor diode 13, 23, 33, 43. The tuner is equipped with a memory 7 in which information concerning voltages for selecting each channel is stored. These voltages are set for the tuning frequencies of the tuning circuit 1 to 3 and for the frequency of the local oscillator circuit 4 for each channel. When a channel is selected, the voltages are supplied to the tuning circuits 1 to 3 and the local oscillator circuit 4, respectively, in accordance with the information which is read from the memory according to the selected channel. <IMAGE>
Patent GB-2187072-A (GB)
Title: Apparatus for protecting a plant
Inventor: HOGG NIGEL HARDINGE MONTEITH
IPC: A01G13/02
Filed: 1987-02-24
Abstract: The invention relates to apparatus 1 for protecting a plant (not shown) such as a young tree during growth, comprising a member 1 which is a collapsed tube which can be erected to form a tubular housing 2 in which the plant is housed during growth, one end of the member 1 having a surface 3 which leads from the inside 4 to the outside 5 of the member (or housing 2 when erected) and presents no sharp edge to the plant. The material is suitably a fluted plastics material made by an extrusion process, and a single blank of the material is folded about opposite crease lines to form the tubular housing 2. Rigidifying means in the form of wires 10 maintain the housing as a tube, and securing means in the form of wire ties 12 enable the erected housing to be secured to a stake (not shown). <IMAGE>