baber/WOPTO huggingface dataset:
Patent GB-2090279-A (GB)
Title: Removing Acid Gases from a Gaseous Stream
IPC: C10G1/08
Filed: 1980-12-31
Abstract: In a process for hydrocracking a heavy aromatic polynuclear carbonaceous feedstock containing reactive alkaline constituents to produce liquid hydrocarbon fuels boiling below about 475 DEG C at atmospheric pressure by contacting the feedstock with hydrogen in the presence of a molten metal halide catalyst, thereafter separating a gaseous stream containing hydrogen, at least a portion of the hydrocarbon fuels and acid gases from the molten metal halide and regenerating the molten metal halide, the product stream is contacted with the feedstock to remove acid gases therefrom. Optionally at least a portion of the hydrocarbon fuels are condensed from the product stream prior to contact with the feedstock.
Patent GB-2093638-A (GB)
Title: Negative ion generators
IPC: H01T23/00
Filed: 1981-01-21
Abstract: In a negative ion generator of the corona discharge type, one or more sharp points of electrically conductive material are raised to a negative potential relative to earth so that corona appears at the point or points. Negative ions are thus created in the corona region and are accelerated into the surrounding air space by virtue of the electrical field set up. Some Ozone is also generated and this is undesirable. The present invention proposes the use of Activated Charcoal Cloth material as the corona discharge site or sites. By the judicious forming of the said cloth 1 the fibres of the cloth form the sharply pointed corona discharge points. It has been found that less Ozone is generated when using the Activated Charcoal as corona discharge sites than that generated when using the usual metallic needle points. <IMAGE>
Patent GB-2072307-A (GB)
Title: Improvements relating to isolating valves
IPC: F16K11/085
Filed: 1981-03-23
Abstract: An isolating valve also known as a block and bleed valve is disclosed including a valve body having a continuous cylindrical sealing surface, a valve element 16 rotatably mounted within the body and including seals matching the sealing surface, a pair of communicating co-axial ports 13 in the body controlled by the valve element and a bleed port 18 communicating with both ports, the positioning of the valve element being such that when the coaxial ports are closed the bleed port is open and when the coaxial ports are open the bleed port is closed by the valve element. <IMAGE>
Patent GB-2073253-A (GB)
Title: Chemical machining
IPC: C23F1/08
Filed: 1981-04-01
Abstract: Chemical machining plant, for example a taper etching facility for contouring very long aluminium aircraft parts, comprises a tank filled with an etchant fluid and, to avoid the formation of a pancake of machining by-products at the bottom of the tank, a pump for circulating the fluid upwardly through the tank and/or means for admitting bubbles of gas to the bottom of the tank which rise up through the fluid to keep the by- products in suspension. The plant further comprises a filtering arrangement for continuously filtering a tapped-off portion of the fluid.
Patent GB-2084564-A (GB)
Title: Apparatus for Transferring Newly-formed Glassware From a Deadplate to a Conveyor
IPC: C03B9/453
Filed: 1981-05-20
Abstract: Pusher plate 6, having finger plates 7, 8, is carried by parallel piston rods 1, 2 of fluid motor A, the side-by- side cylinder arrangement of which enables body 31 of the motor A to be mounted on vertical shaft B the pivotal axis of which intersects the symmetrical centre line of the body 31. Upon swinging the motor A through 90 DEG , as indicated by the arrows, the finger plates 7, 8 transfer newly-formed bottles D from dead plate C onto conveyor E, whereafter piston rods 1, 2 are retracted and the motor swung back The double-piston and symmetrical mounting arrangement of the motor A enables the latter to be used equally well for glassware transfer in either direction, i.e. it can be used to transfer in the direction opposite to the arrows to a conveyor (not shown) at the other side, remote from the conveyor E, of the dead plate C. <IMAGE>
Patent GB-2079091-A (GB)
Title: Decoding and filtering of colour television signals
IPC: H04N9/78
Filed: 1981-06-01
Abstract: A PAL decoder or filter comprises two delay units (10,22) of 312-lines (for a 625 line frame connected in series to make three consecutive fields (A, B, C) available simultaneously. The second field is compared (26) with a signal formed from proportions of the first and third fields (A, C), the proportions being adaptively varied in dependence upon signal content eg the degree of chrominance charge between fields. A cross-fade mixer 20 selects proportions of fields A and C in accordance with a control signal F derived by a circuit 30 (Fig.5). The circuit 30 implements expression (2) or (3) such that the control signal (F) is a function of the differences between the amplitudes of the two chrominance components respectively of the different fields, i.e. UA - UB, VA - VB, UB - UC, and VB - VC. When e.g. F =  &cirf& 5, the output of mixer (28) is 1 DIVIDED 2At1 DIVIDED 2C, as F approaches 1 &cirf& 0, the proportion of A approaches 1 &cirf& 0 and that of C, O, and as F approaches O, the proportion of A approaches O and that of C, 1 &cirf& 0. <IMAGE>
Patent GB-2079112-A (GB)
Title: Circuit arrangement for modifying dynamic range
IPC: H04B1/04
Filed: 1981-06-29
Abstract: Compressor and expander circuits respectively are arranged in series, the circuits each having bilinear characteristics in which there is a low level portion of substantially constant gain up to a threshold, an intermediate level portion, above the threshold, of changing gain providing maximum compression ratio or expansion ratio, and a high level portion of substantially constant gain different from the gain of the low level portion. The high and low level portions thus each have a constant compression ratio of 1:1. Over the intermediate portion, the compression ratio 10 or 12 rises to a maximum 10b or 12b such as 2:1. The intermediate level changing gain portions of the characteristics are staggered between the series circuit to the extent that the resulting overall characteristic has a maximum compression or expansion ratio substantially no greater than that of any single circuit while providing an increased difference between the gains at low and high input levels (that is, providing increased compression or expansion) than for any of the circuits individually. <IMAGE>
Patent GB-2080542-A (GB)
Title: Measurement of shaft angle displacement
IPC: G01B7/30
Filed: 1981-07-09
Abstract: Angular displacement of a shaft 11 relative to a fixture 17 from a rest position of the shaft is detected by a strain gauge 18 mounted to a beam 14. One end of the beam is fastened 13 to the shaft 11 and the other end is fastened 15 to a mount 16 on the fixtures 17. Changes of the electrical resistance of the strain gauge 18 with fixing of the beam 14 upon angular displacement of the shaft 11 from its rest position are measured by a bridge circuit end the device is calibrated to provide an output representative of the magnitude of the angular displacement. For large angular displacements, the beam may be extended so as to circle the shaft several times. <IMAGE>
Patent GB-2095564-A (GB)
Title: A golf practising device
IPC: A63B69/36
Filed: 1981-08-14
Abstract: A golf practising device has a support plate (10) on which the golfer stands and a substrate plate (17) movable in a lateral extension of the support plate (10). The substrate plate (17) is connected to the support plate (10) by an elasticated cord (21). The golfer making a practice shot strikes a ball on the substrate plate (17) which moves relative to the support plate (10) against the bias of the cord (21). The substrate plate (17) consists of a stimulated grass material and a resilient material so that the movement of the substrate plate (17) simulates the taking of a divot of turf out of a fairway. <IMAGE>
Patent GB-2087637-A (GB)
Title: Introducing Terminals Through Battery Covers
IPC: H01M50/176
Filed: 1981-09-08
Abstract: A cover (2) for an electric lead- acid battery element which, in use, is subjected to an upward thrust generated by the increase in height of the plates, in particular the positive plate, is provided, around its poles (5a, 5b) with elastically yieldable zones (7a, 7b) in the form of concentric rings. Each ring zone is covered at the top by a ring-like cover (8) which can slide along the pole bosses. <IMAGE>
Patent GB-2086147-A (GB)
Title: Slip-ringless electric generator
IPC: H02K7/10
Filed: 1981-09-22
Abstract: A slip-ringless inductor alternator flywheel generator comprises one or more stator segments (1) with armature windings (7), and a claw poleflux distributing rotor (2) on an internal combustion engine flywheel (4). At least one stationary excitation yoke (5) with an excitation winding (6) is segment-like and associated with the stator segment (1). The generator is suitable for motor vehicles having a confined installation space. <IMAGE>
Patent GB-2109143-A (GB)
Title: Turntables
Inventor: LANE NORMAN
IPC: G11B19/28
Filed: 1981-10-08
Abstract: A turntable for example for a record player, has means (13) for mounting the turntable (12) for rotation by a drive means (16, 17) about a central axis (12a), the turntable (12) including a rim (21) having a plurality of apertures (22) therein of equal width and equally spaced around the rim (21). A light source (30) adapted to flash at a predetermined frequency may be positioned so as to shine through the apertures (22) in a direction away from the central axis (12a), said predetermined frequency and the spacing of the apertures (22) being such that the apertures (22) appear to remain stationary as the turntable (21) rotates at said predetermined speed. <IMAGE>
Patent GB-2087439-A (GB)
Title: Thread or Yarn Fournisseur for Textile Machinery, Particularly Circular Knitting Machine
IPC: B65H51/22
Filed: 1981-11-10
Abstract: To permit selective engagement and disengagement of the storage drum of a yarn feed fournisseur, the drum (12) is separately journalled on the drive shaft (5) of the fournisseur and a selectively engageable and disengageable coupling arrangement is provided between the fournisseur shaft and the drum (12). This may be carried out by coupling an end cap (16) to the shaft (5) such that axial sliding movement of the cap is permissible, preferably between positively locked (28, 29) positions. The drum (12) is coupled to the cap by engaging a projecting pin (14a) in an opening (27) of a rim portion (18, 19) of the drum; or in other embodiments by interengaging teeth formed on the cap and on the drum, or by a friction coupling engaging between the cap and the drum. The cap can be moved manually or by electrical or pneumatic force, manual operation being the simplest, and pneumatic and electrical operation being particularly applicable where access to the fournisseur is impaired. <IMAGE>
Patent GB-2092552-A (GB)
Title: Dispensing apparatus
IPC: G01F13/00
Filed: 1981-12-17
Abstract: A dispensing apparatus for dispensing drops of liquefied gas such as liquid nitrogen has a thermally- insulated reservoir (4) containing the liquefied gas. The reservoir (4) has a hollow column (18) in the bottom of which is fitted a cylindrical block (34) defining an outlet passage (36) extending through the base of the reservoir (4) and terminating in a dispensing orifice (42). A valve member (22) has a nose (25) adapted to make a fluid-tight engagement with a valve seat (24) defined by the top face of the cylindrical block (34). The valve member (22) is connected to a push rod (28) operable by lever (30) to open the valve against the bias of a compression spring (32) and thus dispense liquefied gas. The block is formed of heat conductive material such as brass whereby it maintains the passage (36) sufficiently cold to prevent substantial premature evaporation of the liquefied gas in the passage. <IMAGE>
Patent GB-2095231-A (GB)
Title: Conversion of aldoses to polyols
IPC: C07C31/18
Filed: 1981-12-22
Abstract: A two-stage process for the catalytic conversion of an aldose to a polyol comprises passing a feedstock containing at least 20% by weight monosaccharide solution having a pH >/= 7 at a temperature of from 130-180 DEG C over a fixed bed of high- activity metal catalyst in the presence of hydrogen, withdrawing the alditol product and passing it together with a promoter and hydrogen over a second fixed-bed containing stabilized high- activity metal catalyst at a temperature of 204-271 DEG C, withdrawing the product stream and recovering the polyol therefrom. A portion of the sugars produced from the second hydrogenolysis stage is recycled back to the first hydrogenation stage for further conversion.
Patent GB-2094399-A (GB)
Title: Hollow valve for an internal- combustion engine
IPC: F01L3/14
Filed: 1982-02-15
Abstract: The valve cavity is filled with coolant metal, such as sodium, which is liquid at the high operating temperature, and includes an additive tablet, constituted by zirconium, hafnium, yttrium, uranium 238 or mixtures thereof, having a greater affinity for oxygen, nitrogen, hydrogen and carbon in the valve cavity atmosphere than the coolant metal and the alloying elements in the valve walls. The additive thus prevents the reaction of these impurities with the cavity walls to form a thermally insulating barrier layer and forms compounds with low vapour pressures to reduce the gas pressure, and hence gas viscosity, in the valve cavity to promote mixing of hotter and cooler portions of the coolant thus improving the cooling efficiency.
Patent GB-2095396-A (GB)
Title: Multi-blade damper assemblies
IPC: F24F13/15
Filed: 1982-03-01
Abstract: In order to assure full closure of all the blades of a multi-blade damper assembly, a resilient connection is provided between each blade and a single actuating mechanism. In Figure 3, the resilience is normally provided in each operating arm comprising a body (14) welded to the shaft (8) at one end. A leaf spring (12) is secured to the body and extends to a pivotal connection on an actuator rod (6). The spring is elastically flexible in the closing direction of the actuator rod (6), but flexure in the reverse (opening) direction is prevented by the body (14), minimizing the risk of jerky operation caused by binding of a closed blade. In Figure 4, the resilience is provided by positioning a spring 30 between the boss 24 of each blade carrying arm 18 and a face 26 of a respective housing in the common actuating rod 20. <IMAGE>
Patent GB-2106287-A (GB)
Title: Digital data processor
Inventor: WOOD KENNETH WILLIAM
IPC: G06F17/15
Filed: 1982-08-06
Abstract: A digital data processor includes a regular array 10 of identical processing cells 12 which are interconnected via latches and each performs a logic operation on incoming bits. Each cell repeatedly performs a cell operation under the control of clocks which govern the inputting to and outputting from the cell of data bits. Each bit takes part in a maximum of one cell operation in one repetition of the clock having the highest repetition frequency. Processing cell arrays for dealing with larger numbers may be readily built up from smaller arrays used for smaller numbers. <IMAGE>
Patent GB-2129867-A (GB)
Title: Improvements in hinges incorporating hold-open devices
Inventor: MORRIS BARRY STANLEY
IPC: E05D11/10
Filed: 1982-10-15
Abstract: A hinge of the swan-neck type incorporates a torsion bar hold-open device. The torsion bar (20) is of C- shape and is mounted in the fixed hinge leaf (1) such that it straddles the space through which the arcuate portion (14) of the swan-neck shaped leaf (2) moves during opening and closing of the hinge about a pivot pin 3. The torsion bar has a main limb (26) extending parallel to the hinge pin (3) and which is closely spaced from the convex surface of the arcuate portion in the closed condition of the hinge, a limb 21 secured in a lug (23) and a further limb (24) engageable by a serrated roller (31) carried by the swan-neck leaf. <IMAGE>
Patent GB-2113286-A (GB)
Title: Tank walls
Inventor: MINISSALE BRUNO
IPC: E04H7/04
Filed: 1982-12-31
Abstract: The wall comprises a plurality of components 10C and 10E slidably engaged with each other to form a continuous wall. The wall may be supported by upper and lower rails 12, 11. The components may have C- shaped edge profiles for slidable interengagement. A tank roof supporting structure is also described. <IMAGE>
Patent GB-2137790-A (GB)
Title: Burglar alarm system
Inventor: MORRISON JOHN MALCOLM
IPC: G08B29/14
Filed: 1983-04-08
Abstract: A burglar alarm system includes a sensor circuit (SC) comprising at least one sensor switch (SW), and a control circuit (CC) to which the sensor circuit is connected, and operable when the system is activated to apply a potential difference across the sensor circuit and to detect a change in the flow of current through the sensor switch. Test means (TC) are provided, operable when the system is in a test mode to reverse the polarity of the potential difference applied across the sensor circuit. A display device (DD), which may be a light-emitting diode, is connected to the sensor switch so as to be responsive to the said reversed polarity to indicate the condition of the sensor switch. A sensor circuit may comprise a number of series or parallel-connected switches, and more than one sensor circuit may be provided. <IMAGE>
Patent GB-2127074-A (GB)
Title: A revetment for protecting the inclined surfaces of beaches, shores, rivers or channels, and of structures such as moles, dikes or channel walls, located in these places against erosion by waves and flowing water
Inventor: KNUDSEN POUL NYBOE
IPC: E02B3/14
Filed: 1983-04-19
Abstract: A revetment for protecting coasts and structures thereon against erosion from waves and flowing water comprises a plurality of heavy and thick plate bodies located side by side and directly on the inclined surfaces of the coast. Each plate body comprises at a first pair of opposite ends hinge members 1', 1'' having an internal saddle surface to produce a flexible connection between the plate body and its adjacent plate bodies. Furthermore, the plate body comprises a plurality of substantially vertical water penetration holes 4', 4'' as well as two hinge openings 2', 2'' located at a second pair of opposite ends of said body. The hinge openings are shaped in such a manner that they beyond penetration of water also may receive members of the adjacent plate bodies. In this manner a revetment is obtained which is water-permeable, coherent, appropriately heavy and flexible, and which furthermore in an easy manner may be mounted by unskilled persons. <IMAGE>
Patent GB-2143351-A (GB)
Title: Temperature-compensating circuit for connecting a constant current source to a load
Inventor: STEWART JOHN FRASER
IPC: H03K17/615
Filed: 1983-07-09
Abstract: A circuit for connecting a constant current source CS to a load C, e.g. a sampling capacitor, includes a first switch S1 operable to make and break a connection between the source and the load. A second switch S2 is provided, which is operable to connect a bypass impedance BZ across the output of the current source when the load is disconnected from the load, and to disconnect the bypass impedance when the source is connected to the load. A control circuit SS controls the operation of the two switches. The switches are arranged to have similar temperature-dependent characteristics and to be located so as to be subjected to the same temperature variations. <IMAGE>
Patent GB-2133590-A (GB)
Title: Switching power supply
Inventor: SORG MANFRED
IPC: H02M3/337
Filed: 1983-09-27
Abstract: A power supply comprises an integrated regulator module (5) containing a pulse-width modulator, and a current transformer (11) arranged in series with the regulating transistors (4) in the primary circuit of the power supply. The voltage (Vs) delivered by the current transformer (11), which is proportioned to the measured current, is directly and phase-invertedly with respect to the measured current, superimposed upon the regulating signal (VR) for the pulse- width modulator in the module (5). The regulating signal (VR) is obtained by comparing the output voltage (VA) of the supply with a reference, and transmitting the difference signal through an optocoupler (19). <IMAGE>
Patent GB-2136926-A (GB)
Title: An Improved Automatic Valve Actuator and Control System
Inventor: SMITH GORDON M
IPC: F16K31/12
Filed: 1984-03-19
Abstract: A valve actuator control system for remote control of plug-type valves 10 utilizes a unique configuration providing a unitary explosion-proof container 26 to house all electrical components and also providing a manifold assembly 24 that is adapted for a hydraulic or pneumatic actuator motor 20. The manifold assembly is designed to accept all utilized control valves, relief valves, check valves, flow control devices, and manually operable override controls thereby simplifying installation and maintenance and reducing attendant costs. Two independent solenoid valves (50, 52) Fig. 18, (not shown) are responsive to a remotely initiated command for initiating motion of the actuator motor in one direction or the other. Switches (68, 70) associated with respective solenoids (50, 52) and operated by switch paddles on a feedback member (63) stop a selected motion of the actuator motor when the flow configuration of the valve (10) has changed in accordance with said command. A third solenoid (54) and associated switch (66) provide a duel speed control of plug-valve (10). The solenoids (50, 52; 54) are integrated into the manifold and the solenoids and switches (66, 68, 70) are contained within the explosion-proof container. <IMAGE>
Patent GB-2147500-A (GB)
Title: Improvements relating to folding beds
Inventor: HALLING ROBERT GERALD
IPC: B60P3/38
Filed: 1984-09-20
Abstract: A bed is designed to fold up into the roof (1) of a caravan or motor-caravan (although it is equally applicable to other places such as boats or attics). It is in two parts (2, 3) connected by a transverse hinge (4), with the free end of one part (2) anchored to a base (6) by a parallel hinge (5). This part has pneumatic or spring damping (9) which cushions its lowering movement from an upwardly inclined position. A linkage (11) connects the other part (3) to lateral supports (7) and ensures that it adopts a generally horizontal attitude when the first part is either raised or lowered. A catch (8) holds the other part in the raised position. <IMAGE>
Patent GB-2148463-A (GB)
Title: Shaped charge liners
Inventor: KAY GLYN
IPC: B26F3/04
Filed: 1984-10-18
Abstract: In a method of making an annular-shaped charge of a high explosive, a correspondingly-shaped liner of angle cross-section is fabricated by a method including the step of mutually abutting sections or rings sliced from pre-formed copper hollow ware of frusto-conical configuration of which the angle of divergence (or convergence) is 180 DEG  less the value of the linear cross-section angle required. Thus, the need for bending rolls capable of accommodating copper strip of angle cross-section is dispensed with.
Patent GB-2151417-A (GB)
Title: Lead wire holder
Inventor: MATSUI KAZUHIRO
IPC: H01R12/55
Filed: 1984-12-14
Abstract: A lead wire holder comprises a first holding member (1), a second holding member (2), the holding members being interconnected so that both can be folded together by a connecting portion (3), the holding members being provided on the inside mating surfaces thereof with opposed lead wire insertion recesses (12, 13), and mounting legs (16, 17) for mounting the holder to a printed circuit board, the mounting legs being downwardly projecting from the lower side edge surface of either or both of the holding members. Resilient tongues (14, 15) for holding the lead wires are formed in the wall portions of the recesses. The recesses taper towards the lower side edge surface, so that the insertion end of each lead wire is restricted in length by contact of its insulation coating end with the tapered portion of its recess, and it is thereby possible to ensure that the projecting cores of the lead wires have a uniform projecting length. <IMAGE>