baber/WOPTO huggingface dataset:
Patent GB-2030805-A (GB)
Title: Current sources
IPC: G05F1/56
Filed: 1978-09-26
Abstract: A stabilized current sources network for an LSI circuit comprises n multiple collector transistors (11... 1n) each having m collectors connected to respective electronic elements (2), one collector of any one transistor being coupled via a load resistor (9) to a bus (10), and includes a stabilization unit (3) comprising a reference voltage source (4), an amplifier (6), and a comparator (5) all connected substantially as shown. The unit (3) stabilises the current through the said one collector, and the currents through the other collectors are coupled thereto by current mirror action. <IMAGE>
Patent GB-2006262-A (GB)
Title: Hydrocarbon conversion
IPC: B01J29/78
Filed: 1978-10-19
Abstract: Alkylbenzenes, for example xylenes, are isomerised in the liquid or vapour phase using a catalyst comprising FU-1 zeolite and antimony oxide. Optionally, the feedstock contains up to 25% ethylbenzene, part at least of which is converted to para-xylene. The process may be carried out in the presence or absence of hydrogen.
Patent GB-2006818-A (GB)
Title: Hydrocarbon conversion
IPC: B01J29/70
Filed: 1978-10-23
Abstract: Alkylbenzenes for example xylenes, are isomerised in the liquid or vapour phase using a catalyst comprising FU-1 zeolite modified with a cation having a high ratio (>/= 2) of charge to ionic radius, for example magnesium rare earths. Optionally the feedstock contains up to 25% ethylbenzene, part at least of which is converted to para-xylene. The process may be carried out in the presence or absence of hydrogen.
Patent GB-2034811-A (GB)
Title: Electronic ignition systems for internal combustion engines
IPC: F02P3/045
Filed: 1978-11-21
Abstract: The system includes an ignition coil 13 having a secondary winding 14 for connection to one or more sparking plugs, and a solid state switching device 45 for connecting the primary winding 12 in circuit with the supply 10 and interrupting such connection to produce a spark, means being provided for cyclically supplying to the switching device a signal synchronised with the engine to cause it to interrupt the primary circuit to cause a spark and to re-connect the circuit after a delay dependent on the cessation of spark current. Contact breaker 20 or other device provides a brief pulse, via capacitor 36 and transistor 40, to switch off transistor 45, the resultant inductive EMF being fed back via 47, 37, 38, 40 to keep 45 switched off until the EMF has fallen to a low value. A diode pump circuit 60-66 may be provided to extend the switch-off pulse at low engine speeds and thereby provide e.g. a constant dwell period. <IMAGE>
Patent GB-2040057-A (GB)
Title: Copying
IPC: G03G21/04
Filed: 1979-01-05
Abstract: Optical fibres are arranged singularly, in a bundle or with ends side-by- side for transmitting light, eg from an original to a photoconductive drum (Figure 1), a photoconductive sheet (with crossing over of the fibres, Figures 2 and 8) or corresponding photodetectors for facsimile reproduction (Figure 14). Random crossing of the fibres produces a coded image which may be decoded using a complementary crossing arrangement.
Patent GB-2040701-A (GB)
Title: Construction kits
IPC: A63H33/10
Filed: 1979-02-08
Abstract: A constructional kit comprises elongate elements 5 defining longitudinally disposed grooves 7, and panels 6 having edges which mate snugly within the grooves to form a structure. The ends of the elongated elements are tapered so that in end-to-end engagement with one another in the structure, gaps are avoided. Clips, or pins passing through a respective element and panel, may be provided for locking the panel edges within the grooves. <IMAGE>
Patent GB-2015404-A (GB)
Title: Draw Bench
IPC: B21C1/34
Filed: 1979-03-01
Abstract: The invention relates to a draw bench 2 for drawing workpieces such as rods and tubes comprising a drawing bed with a frame or support 4, a drive, a gear box at one end of the draw bench; a die holder 5 at the opposite end, and a trough 7, into which a drawn workpiece 2 is dropped, arranged within the drawing bed frame or support and below the drawing bed. The draw bench is enclosed by a box 20 which deadens the noise of the workpieces 21 dropping into the trough 7. <IMAGE>
Patent GB-2016409-A (GB)
Title: Hoisting structure for hoisting equipment
IPC: B66F9/08
Filed: 1979-03-06
Abstract: A hoisting structure for hoisting equipment such as fork lifts has a hoisting cylinder-piston assembly which includes an outer cylinder (4), a hollow plunger (5) slidable in the outer cylinder and itself forming a cylinder, and a piston rod (7), slidable in the cylinder formed by the plunger, the hoisting structure comprising a stationary mast member (1), one or more extensible mast members (13), a stop (2) which is fixed relatively to the outer cylinder, and flexible hoisting means such as chains (10, 17), the arrangement being such that when pressure fluid is supplied to the common cylinder space (35) the load carrier (21) is first lifted off the ground by extension of the piston rod (7), while the telescopically movable mast member or members (13) remain in their retracted or lowered condition, until pulley wheel (9) on piston rod (7) has reached the stop (2), after which the one or several extensible mast members is or are extended by extension of the plunger (5), the load carrier being moved at a substantially uniform velocity relatively to the mast member (1) throughout this operating sequence. Where a plurality, e.g. two, of extensible mast members (13) are used, two alternative arrangements are described, in one of the which (Fig. 2, not shown) the outer cylinder (4) is fixed as in Fig. 1, while in the other (Fig. 3, not shown), the outer cylinder (4) follows up the movement of the piston rod (7) as a result of extension of the plunger (5). <IMAGE>
Patent GB-2019109-A (GB)
Title: Electrical generator
IPC: H02K5/04
Filed: 1979-04-11
Abstract: In an electrical generator, the end faces of two housing parts (1, 5) abut directly against one another (at 9a, 10a) and are mutually clamped by screws (11), while the stator assembly (12) is arranged in a bore (14) in one of the housing parts, so that the stator assembly itself performs no supporting and mounting functions. In another embodiment (Fig. 2 not shown), the stator assembly is located in, and forms a structural unit with, an additional intermediate housing part (25) against which end faces of the two outer parts (1', 5') of the housing abut. <IMAGE>
Patent GB-2024417-A (GB)
Title: Non-dispersive infrared gas analyser
IPC: G01N21/37
Filed: 1979-06-19
Abstract: A non-dispersive infrared gas analyser is provided with means to reduce the effect of interfering gases whose absorption bands overlap the absorption bands of the gas component to be measured, and comprises a radiation source (1), a measuring path including a cuvette (4) containing the gas to be measured and an interference filter (11), having an absorption edge in the overlapping region of the interfering gases and being transmissive in the remaining absorption region of the gas component to be measured, and a comparison path including a cuvette (5) containing the gas to be measured and of a shorter length than the cuvette (4), modulating means (3) in both radiation paths and a radiation receiver (7-10). <IMAGE>
Patent GB-2024378-A (GB)
Title: Key for valve or clockwork mechanism
IPC: G04B3/02
Filed: 1979-06-29
Abstract: A key intended for rotation through several revolutions and for attachment to a key ring has a first body member (1) adapted for attachment to a key ring (2) and a second body member (3) adapted to engage the shank of a valve or clockwork mechanism and arranged to be rotated manually relative to the body member (1) about a bearing assembly comprising a pin (6) forming a push fit in the body member (1) and a sleeve (7) forming a push fit in the body member (3), the pin (6) being held captive in the sleeve (7). <IMAGE>
Patent GB-2028503-A (GB)
Title: Ultrasonic examining apparatus
Inventor: SLOMAN ANTHONY WILLIAM
IPC: G10K11/35
Filed: 1979-07-23
Abstract: An ultrasonic examination apparatus including: a liquid filled scanning head 1; an ultrasonic transducer arrangement 3 including at least one ultrasonic transducer 2, mounted in the scanning head to be immersed in the liquid 10; guide means 7 adapted to allow the transducer arrangement to be capable of a translational scanning motion through the liquid; and drive means, e.g. linear motor 4, 5, for causing a reciprocating translational movement of the transducer arrangement, wherein the density of the liquid and the means density of the transducer arrangement are chosen so that the transducer arrangement is neutrally buoyant in the liquid with the centre of gravity and centre of buoyancy thereof being substantially coincident. <IMAGE>
Patent GB-2027343-A (GB)
Title: Perfume applicator
IPC: A45D40/20
Filed: 1979-07-26
Abstract: A perfume applicator comprises a stick of solid fatty material containing perfume, the stick having a removable covering, e.g. of metal foil, or being encased in a wooden or plastics material sleeve.
Patent GB-2033718-A (GB)
Title: Animal feeders
IPC: A01K5/01
Filed: 1979-10-16
Abstract: An animal feeder comprises the combination of parts including a trough in the form of two portions 2 adapted for securement at the base, together with a bottom plate 6 for fitting below the trough and for carrying end plates 4 effective to support and seal off the respective ends of the trough. A cover 12 may be hinged to end plates 4. <IMAGE>
Patent GB-2036045-A (GB)
Title: Heat-treating polyesters
IPC: C08G63/88
Filed: 1979-11-07
Abstract: Polyethylene terephthalate having an acetaldehyde content of less than 2.5 ppm and suitable for packing of food and beverages intended for human consumption is produced by heating polyethylene terephthalate having an intrinsic viscosity of about 0.5-0.85 at a temperature of 180-230 DEG C, preferably 200-220 DEG C, for about 4 to 12 hours. The polyethylene terephthalate must not include more than 25 ppm of ester interchange catalyst or 20 ppm of phosphorus during this heating.
Patent GB-2066057-A (GB)
Title: Bedding arrangements
IPC: A61G7/005
Filed: 1979-11-22
Abstract: Bedding arrangement having a base 10 for disposing on the surface of a bed and an adjustable back support 14 with a frame 14a pivotably mounted at the surface of the base enabling adjustment of the back support into various angular positions relative to the surface of the base wherein a board 25 for supporting the back of a bed-ridden patient is pivotably mounted on the frame adjacent a head-resting portion of the latter. The board is upwardly pivotable in a direction opposite an upward pivotable movement of the frame whereby the patient assumes a recumbent position raised above the surface of the bed permitting unhindered introduction of a bed pot under the patient. <IMAGE>
Patent GB-2049191-A (GB)
Title: Methods of quantitative analysis
IPC: G01R33/28
Filed: 1980-02-13
Abstract: The amount of ingredient in a material, for example protein or carbohydrate, is ascertained by mixing the material with a reagent having a paramagnetic component and exhibiting a measured nuclear magnetic relaxation rate. The reagent is chosen so that the ingredient modifies the reagent and changes the measured rate. The magnitude of the change is then a measure of the amount of the ingredient present. Suitable reagents are solutions containing copper or manganese ions and the reagents may be alkaline or acidic and may include solvents and viscosity modifying agents.
Patent GB-2048385-A (GB)
Title: A rotary fluid pump or motor
IPC: F04C14/26
Filed: 1980-04-09
Abstract: The pump or motor is of the externally-meshing gear type and has bearing bushes 6, 6' held against the gears 4, 4' by fluid pressure transmitted from the high- pressure side of the gears to recesses 10, 10'. Initial loading of the bushes is provided by resilient seals 8, 8'; 9, 9'. To reduce the output to substantially zero the recesses are connected to a fluid container 21. Alternatively, the recesses are connected permanently to the high-pressure side by way of a variable throttle (26), Fig. 5 (not shown), connection of the recesses to the container to reduce the output then allowing a proportion of the fluid to circulate for cooling and lubricating purposes. <IMAGE>
Patent GB-2053281-A (GB)
Title: Jet pulverised atomised steel powder for powder metallurgy
IPC: B22F1/00
Filed: 1980-05-27
Abstract: Compacts are produced from powder stainless steel or heat- resistant steel atomised in an inert gas, in which the metal powder is preferably by the cold isostatically pressed and optionally subjected to a hot forming treatment, such as extrusion, hot isostatic pressing or rolling, wherein at least those powder particles which exceed a predetermined size, such as 0.6 mm, diameter are accelerated by at least one jet stream and size-reduced and/or cold formed by impinging on a baffle plate or an anvil or on powder particles which are preferably accelerated by at least one other jet stream at an angle, to the first jet stream. The jet stream(s) and the powder are surrounded by an inert gas, preferably argon, or a substantially oxygen-free atmosphere of pure nitrogen and/or other gases which do not react with the steel, but are soluble therein.
Patent GB-2050977-A (GB)
Title: Tow bar
IPC: B64F1/22
Filed: 1980-06-03
Abstract: A tow bar formed by parts 1a, 3 and 1b to interconnect a vehicle on tow, for example an aircraft on the ground, with a towing vehicle 5. The part 3 is tubular and carries strain gauges included in bridge circuits to give indication of the stresses of traction, compression and flexion the bar experiences. The resultant electrical signals are used to give visual and other indication to the drivers in both vehicles of the stresses detected so that the drivers can coordinate their actions to reduce the stresses if they are excessive. The tow bar can also include a frangible device which breaks and allows separation of the vehicles if the stresses exceed an upper maximum limit. <IMAGE>
Patent GB-2059296-A (GB)
Title: Coating band material
IPC: B05C1/06
Filed: 1980-06-25
Abstract: Band material is coated on one side with a solvent-based coating using a scraper blade (2) fitted against a rotary spreading roller (4). Coating substance is supplied at (7) into the trough (11) formed by the roller and blade. The direction of rotation of the roller is such that the surface of the roller moves downwards at the contact point between the roller and blade. The coating substance is transferred from the roller onto the surface of the band material running in contact with the roller. <IMAGE>
Patent GB-2055820-A (GB)
Title: 2-amino-3-(alkylthiobenzoyl)- phenylacetic acids and esters
IPC: C07C323/63
Filed: 1980-07-14
Abstract: Compounds of the general formula   <IMAGE> (wherein R represents a hydrogen atom or a lower alkyl group, R<1> represents hydrogen atom or a lower alkyl group or pharmaceutically acceptable metal cation, R<2> represents a hydrogen or halogen atom or a lower alkyl or lower alkoxy group, Am represents an amino, methylamino or dimethylamino group and the lower groups contain 1-6-carbon atoms) have anti-inflammatory and analgesic activity and inhibit blood platelet aggregation. They are prepared by the following route:   <IMAGE>
Patent GB-2082957-A (GB)
Title: An Improved Method of Making Bifocal Contact Lenses
IPC: B29D11/00
Filed: 1980-07-18
Abstract: A method of making bifocal contact lenses of a polymerised material in which one finished optical surface is moulded, a second optical surface is cut and polished whilst rotating the lens eccentrically to provide a lens having a relatively thin apex and a thicker base, the polished surface is covered with a protective layer of polymer and the lens again rotated eccentrically with the positions of the lens apex and base transposed to cut a further optical surface before removing the protective layer.
Patent GB-2059525-A (GB)
Title: Brake Unit
IPC: F16D65/18
Filed: 1980-09-12
Abstract: The brake unit (e.g. for use in controlling draw works of a drilling rig comprises an input shaft (22) which operates to drive a gear pump (96) for circulating oil under pressure over interposed brake discs (136) and plates (140) and through restricted openings (162) during a first direction of rotation such as during lowering of the pipe stands so as both to cool and to lubricate the discs and plates the oil under pressure being operative to move a piston (142) to bring discs and plates into braking relationship upon speed increase to a certain point to provide self-governing speed regulation. During an opposite rotation of the input shaft, such as during raising of the pipe stands, an alternative flowpath is provided by- passing the restricted orifices so as to reduce the drag during raising of the pipe stands. An oil sealing arrangement prevents oil leakage between the input shaft and housing due to the high pressure generated therein, and Figure 7 shows further details of the lubricating system utilizing tanks (212,220). <IMAGE>
Patent GB-2084712-A (GB)
Title: Improvements in/or relating to plate heat exchangers
IPC: F28F3/08
Filed: 1980-09-29
Abstract: In a plate heat exchanger comprising a pack of ported and gasketted plates 1 in face to face relationship to define flow spaces therebetween, at least one of the manifolds defined by aligned ports in the plates includes a restrictor 7 having two tabs or tongues 9 and a groove 11, which provide means for mounting the restrictor to one of each pair of plates. The restrictor can be constructed with a series of grooves 10 extending across the restrictor leaving a minimum of material thickness at the base of the groove. Strips of restrictor material can be removed in order to change the relative proportion of port area which is blocked off to that which is free. Thus, a high velocity of the medium passing through the port can be maintained. Solid or semi-solid material in the medium will thus be kept in suspension. The restrictor 7 can be made of an elastomeric material, for example, rubber, or it can be made from other materials, such as synthetic polymeric materials. <IMAGE>
Patent GB-2061059-A (GB)
Title: Recording colour video signals on a magnetic tape
IPC: H04N9/808
Filed: 1980-10-13
Abstract: A method for recording a color video signal in a plurality of parallel tracks extending obliquely on a magnetic tape includes the steps of sampling the video signal at a frequency which is at least three times the color sub-carrier frequency of the color video signal, converting the sampled video signal into digital form, and recording respective pluralities of the digitized samples which are arranged in a predetermined sequence sequentially in the plurality of parallel tracks, by either recording respective pluralities of contiguous digitized samples sequentially in the tracks, in which each plurality corresponds to at least one cycle of the color sub-carrier, or by alternately separating contiguous ones of the digitized samples into first and second blocks and recording respective pluralities of successive digitized samples of the first and second blocks sequentially in the tracks with the sampling frequency being equal to four times the color sub-carrier frequency, such that the chrominance component of the digital color video signal can be separated during reproduction so as to correct any error in the phase of the color sub-carrier, and such that with the first embodiment of the last-mentioned step, a digital filter having a chrominance characteristic C=(1-Z -2)/2 can be used, and with the method according to the second embodiment, a fourth order digital filter having a chrominance characteristic C=(-1=2Z-2-Z-4)/2 can be used to reproduce the chrominance component, where Z is a delay transfer characteristic of the respective filters.
Patent GB-2064095-A (GB)
Title: Rotary atomizer
IPC: F24H9/18
Filed: 1980-10-22
Abstract: A boiler (1) in which the flame changes direction at the rear end of the firebox so as to flow through said firebox in the opposite direction, having a water jacket and a firebox (5) which is sealed at the rear and is closed by a door (12) at the front of the boiler. A burner arrangement (7) in the door (12) is provided with a rotary atomiser (9), surrounded by an annular air channel (10). The boiler door (12) is provided with an insulating layer (13) and a fire-clay door lining (16). A combustion tube insert (14) is mounted in the firebox (5) so as to be substantially flush with the fire-clay door lining (16) when the door is closed. This combustion tube insert (14) may be constructed as a double metal tube lined on the inside with a refractory lining (17), preferably of fire-clay, the annular chamber of which is connected to the water jacket (3) via connectors, so as to effect cooling of the combustion tube insert (14). <IMAGE>
Patent GB-2066224-A (GB)
Title: Container & closure assembly
IPC: B65D50/06
Filed: 1980-10-29
Abstract: A two part container closure comprises a plug element 4 and a sleeve element 5. The two parts of the closure are applied to the container by downward pressure so that a skirt of the sleeve element is secured around the mouth of the container via recess 7 and bead 3 and the plug element is seated over the mouth of the container within the upper part of the sleeve element which is positioned above the mouth of the container. Therefore the plug element is co-axially arranged within the sleeve element when the closure is in the operative position. The plug element forms a child proof closure which can only be removed when axially rotated to bring thumb grip 11 in register with a peripheral opening 10. <IMAGE>
Patent GB-2067034-A (GB)
Title: Power distribution arrangement
IPC: H02J9/06
Filed: 1980-12-23
Abstract: In a spacecraft, outputs from respective solar power panel sections (S1-SN) are connected via respective isolating diodes (6) to respective load buses (B1-BN) and also via cross-connect diodes (7) to others of the load buses so that each bus can receive power from at least two panel sections. A switchable standby power supply (8-11) such as one or more storage batteries may be connected to the load buses downstream of the diodes. <IMAGE>
Patent GB-2071492-A (GB)
Title: Fire fighting compositions and method
IPC: C21D1/60
Filed: 1980-12-23
Abstract: An improved fire fighting composition comprises an aqueous solution of one or more nonionic surfactants having a cloud point, or collective cloud point, in the range 20-100 DEG C and present at a concentration upto 0.2% by volume. Preferred surfactants are ethylene and propylene oxide condensates, preferably with an alkylphenyl, e.g. nonyl phenol. The compositions are prepared in situ by adding to a water stream upstream of the pump an aqueous surfactant concentrate containing upto 30% by weight, preferably 20-29% of the surfactant. The composition can be pumped without cavitation through one or more discharge nozzles.
Patent GB-2066900-A (GB)
Title: Ejector
IPC: F04F5/22
Filed: 1980-06-12
Abstract: Multi-ejector having at least one set of between two and four nozzles (7-10) arranged in series in order of size in the flow direction, the smallest nozzle (7) constituting the first nozzle. The novel feature of the present multi-ejector resides in the fact that by using the below given connections between the inlet and outlet diameters of the nozzles as well as the distances between adjacent nozzles starting from the inlet diameter (a) of the first nozzle (7) there have been obtained negative pressures amounting to between 7 and 10% of actual air pressure when using a positive pressure of between 3.7 and 6.0 kilopounds per square centimeters.  Nozzle            Inlet Outlet             Distances to                  Diameter Diameter          succeeding nozzles First (7)           a 1.5a                    0a Second (8)      2.1-2.2a          2.3-2.4a 5a Third (9)       3.6-3.7a          4.0-4.1a                  2.5a Fourth (10)     4.5-4.6a          5.6-5.7a