baber/WOPTO huggingface dataset:
Patent GB-2013806-A (GB)
Title: Internal shoe drum brakes
IPC: F16D65/22
Filed: 1979-02-13
Abstract: An internal shoe drum brake comprises a pair of brake shoes (11, 12), an adjustable length strut (22) extending between the shoes and having a ratchet (23) movement of which adjusts the length of the strut, an actuating lever (18) pivotally connected to one end of the strut and engaging one shoe (12), the lever (18) being so arranged that a force acting on one end in a direction generally parallel to the drum axis rotates the lever to exert a force on one shoe (12) and a reaction force through the intermediary of the strut (22) on the other shoe (11) to urge said shoes apart, and a pawl engageable with the ratchet. To reduce the number of parts the pawl is pivotally mounted on the other shoe (11) and is rotatable about its pivot to move the ratchet (23) and thereby adjust the length of the strut (22) when there is excess wear of the shoes. Furthermore, the strut (22) preferably has a portion which is engageable with a surface portion (29) of the brake back plate (10), or a member secured to the back plate, to react forces to the back plate. The surface portion (29) is preferably parallel with the strut axis to permit sliding movement of the strut thereon. <IMAGE>
Patent GB-2016597-A (GB)
Title: Controlling guide vane angle of an axial-flow compressor of a gas turbine engine
IPC: F04D27/02
Filed: 1979-02-26
Abstract: A first detector (35) detects a first pressure PS1 in the compressed fluid downstream variable angle guide vanes 30 which is influenced by their angular setting, and a second detector 37 detects a second, higher pressure PH in the compressed fluid which is substantially independent of the setting of the guide vanes but is functionally dependent upon the rotational speed of a compressor 20 of the engine 10, the detected pressures being used by a control unit 36 to cause an actuation mechanism 38, 40, 42, 44 to adjust the angle of the guidevanes in a predetermined manner dependent upon the ratio   <IMAGE>   <IMAGE>
Patent GB-2020055-A (GB)
Title: Magnetic connector for optical cables
IPC: G02B6/40
Filed: 1979-04-18
Abstract: An optical cable interconnection weather arrangement comprises two mating non-magnetic connector parts C, C' respectively attached to the cable ends, each connector part having passageways through which individual fibres F1, F2, F3 etc are fitted from the optical cables CO and CO'. The ends of the fibres have coverings R1, R2, R3 etc which are made of ferro-magnetic material and fitted to the exterior of the connector parts means (e.g. permanent ring magnets M, M') which provide parallel flux lines within the two connector parts when these are mated thereby inducing the magnetic coverings R1, R1' etc of face to face fibre ends to be mutually attracted so as to effect a continuation of the fibres and at the same time an accurate alignment. <IMAGE>
Patent GB-2036609-A (GB)
Title: Casing for a galvanic primary cell, and a primary cell provided therewith
IPC: H01M50/124
Filed: 1979-10-16
Abstract: A casing for a galvanic primary cell, and a galvanic primary cell having such a casing, the casing consisting of an outer metallic jacket 1 and a layer 2 which insulates the jacket against the live parts of the cell, the insulating layer being secured by a non-hardening adhesive to the inside of the jacket, the said adhesive permitting the insulating layer to shift relative to the jacket when the jacket is bent, rerolled, or the like, while holding the insulating layer to the jacket. <IMAGE>
Patent GB-2037639-A (GB)
Title: Arc welding method
IPC: B23K35/30
Filed: 1979-10-29
Abstract: A workpiece comprising 3.5% - 9.5% nickel by weight, less than 100 ppm oxygen and less than 100 ppm nitrogen, the remainder being iron together with conventional impurities in conventional amounts, is arc welded using a filler wire comprising, by weight, 8-15% nickel, 0.1 - 0.8% manganese, less than 0.15% silicon, less than 0.1% carbon, less than 0.1% aluminium, less than 0.1% titanium, less than 0.0006% boron, and less than 100 ppm oxygen and less than 100 ppm nitrogen, the remainder being iron, and the sum of the wire oxygen content and double the workpiece oxygen content is less than 200 ppm, and the sum of the wire nitrogen content and double the workpiece nitrogen content is less than 200 ppm. The specification includes TIG and plasma arc welding, automatic arc length control, prevention of magnetic blow, weaving by supplying pulsating current to the filler wire, and heat- treatment of the final layer of a multi- layer weld by arc-remelting of said layer.
Patent GB-2062834-A (GB)
Title: Method and apparatus for heating a fluid employing a heating gas containing sulphur oxides and water
IPC: F28D7/12
Filed: 1979-11-01
Abstract: In the heating of a process fluid stream by a gas containing sulphur oxides and water vapour (e.g. from the combustion of coal or oil) the cold process fluid stream is placed in heat exchange with another fluid stream itself indirectly heated by said gas (e.g. via a heat transfer wall) and which is at a temperature below that of the gas but exceeding the dew point temperature of the gas, such that the outer surface temperature of said wall is always above the acid dew point, thereby avoiding acid corrosion. Heat exchangers may be utilized comprising one or more inner tubes enclosed by an outer tube, with the gas flowing over said outer tube. In Fig. 2 the said other fluid stream flows in the space between tubes 25, 26 and comprises the cold process fluid which has entered via tube 25 and is thereby preheated before entering said space. <IMAGE>
Patent GB-2064005-A (GB)
Title: Air Intake to Ducted Fan Engine
IPC: F02C7/04
Filed: 1979-11-22
Abstract: In order to improve ground clearance below an underwing mounted engine, the air intake structure (24) is made elliptical, the minor axis (D) being arranged substantially vertical. <IMAGE>
Patent GB-2039256-A (GB)
Title: Wall panel
IPC: B62D29/04
Filed: 1979-11-22
Abstract: A wall panel for constructing the bodies of motor vehicles such as large vans, has one face formed by a flexible cover sheet 2 made of glass fibre reinforced plastics material and the other face formed by a series of profiled strips 4 of extruded aluminium or glass-fibre plastics material. The strips 4 are of wavy form to give them inherent stiffness and are arranged edge to edge. The individual profiled strips 4 are fixed to the sheet 2 by spacers 12 so that the panel as a whole has a degree of flexibility about axes parallel to the length of the profiled strips 4. This enables the panels to be rolled up for transport or storage prior to use in constructing a body. In use, the profiled strips 4 are fixed to each other, for example by battens 40, to give the panel adequate overall stiffness. <IMAGE>
Patent GB-2046362-A (GB)
Title: Pneumatic actuator
IPC: F16J3/06
Filed: 1980-02-04
Abstract: A resilient flexible diaphragm 8 of a pneumatic actuator 1 is trough- shaped, having a base, and two opposed long side-walls 12, 13 connected by two curved short side-walls (14, 15). A suction pulse applied to the concave face causes it to flip inside-out to a new stable configuration. A pressure pulse reverses the change. There are reinforcements 16, 17 on only the long side-walls 12, 13. They may be integral or adhered, and preferably cover substantially the whole of the respective side-walls. They increase the stability of the two configurations and the reliability of the snap-action changeover. A door-lock actuator has a pressure chamber 7 bounded by the diaphragm 8 bearing a switch stick 11. A switch-over device 3 supplies pressure or vacuum pulses from a pump 2. <IMAGE>
Patent GB-2047568-A (GB)
Title: Method of producing medium- grade coated paper for web offset printing
IPC: B41M1/36
Filed: 1980-04-10
Abstract: A method of producing medium- grade coated paper for web offset printing, in which paper having reduced heatset roughening is produced at low cost comprises applying a coating composition to both surfaces of a base paper containing high yield pulp(s) in an amount of 10 to 100% by weight, and chemical pulp(s) optionally in an amount of 0 to 90%, by weight, thereof. The coating composition contains natural ground calcium carbonate having a specific surface area of 1.5 to 5 m<2>/g under the following conditions:   (i) when the specific surface area is 1.5 to 2.5 m<2>/g: the amount used is 10% to (90S-125)% by weight, of the total pigments in the coating composition ("S" representing the specific surface area in m<2>/g of the natural ground calcium carbonate). (ii) when the specific surface area is 2.5 to 5 m<2>/g: the amount used is 10 to 100% by weight, of the total pigments in the coating composition; the high yield pulp or pulps used having a 42-mesh on fiber fraction content of below 30% by weight, and preferably a 150-mesh through fiber fraction content of below 80%. a
Patent GB-2064403-A (GB)
Title: Remotely Controlled Shears for Cutting up Irradiated Nuclear Fuel Rods or Bundles of Rods
IPC: G21C19/36
Filed: 1980-04-29
Abstract: The shear comprises a shearing knife (7) displaceable transversely to the axis of the rod or bundle, a casing (5, 6) for receiving the knife (7) and in which the shearing knife is slidingly mounted, a feeding device (18, 19) for the rods or bundles of rods, the receiving bores of which are adapted to the shape of the rods or bundles of rods and are in alignment with cutting openings (20, 21) provided in the casing of the knife (7), a drop-out opening (23), said opening being opposite to the cutting openings (20, 21) and a driving device (11, 12) for actuating the shearing knife (7), in which the knife casing (5, 6), the driving device (11, 12) and the feeding device being positively and undisplaceably embedded in apertures 8-10 in a solid divisible shearing block which comprises parts (1, 2) which are detachably and positively locked relative to each other. <IMAGE>
Patent GB-2076008-A (GB)
Title: An improved method for extracting fatty acids from shortening
IPC: C11B3/10
Filed: 1980-05-13
Abstract: A method for removing saturated fatty acids from cooking oil, such as used in the preparation of foods by deep-frying, comprises passing hot oil already mixed with pumicite through a filter cloth. Alternatively, pumicite can be mixed with an equal volume of hot oil and poured onto a cellulose filter paper to form a filter pad through which the cooking oil circulates.
Patent GB-2076112-A (GB)
Title: Slip couplings
IPC: F16D1/08
Filed: 1980-05-14
Abstract: A slip coupling of the friction type is described for interposition between a rotary shaft 10 and a driven or driving element 14 on the shaft, such as a gear, cam, pulley or crank, the slip coupling comprising a split sleeve 18 in engagement with either the element or the shaft but retained against movement by a key 27 carried in a keyway in either the shaft or element, a split tolerance ring 25 being interposed between the split sleeve 18 and either the shaft or the element and retained against rotation with respect to each other and to the shaft or element by the key. The element 14 is retained axially on the shaft 10 either by a shoulder 11 on the shaft and a split retainer ring 30 in a groove on the shaft or by a pair of spaced retainer rings (32) in grooves on the shaft. <IMAGE>
Patent GB-2076968-A (GB)
Title: Fluid pressure pulse detection apparatus
IPC: E21B47/18
Filed: 1980-05-27
Abstract: A pressure pulse detection apparatus receives small signals from downhole "measuring - while - drilling" apparatus, which signals are propagated as pressure pulses travelling upstream in a column of drilling mud and are obscured by mud pump pressure and velocity variations travelling downstream which are significantly larger. A transient pressure transducer (24) and an ultrasonic fluid velocity detector (18), form output signals which are conditioned, amplified and offset against one another. When properly calibrated, pressure and velocity variations from the mud pump upstream are nulled to zero, whereas pressure and velocity variations from the downhole signal generator are enhanced, thereby forming an output signal of downhole variations of interest. <IMAGE>
Patent GB-2053840-A (GB)
Title: Improvements relating to containers for holding and dispensing eye medications
IPC: A61F9/00
Filed: 1980-06-04
Abstract: In order to make easier and safer the administration of eye medications from containers e.g. plastics squeeze bottles or tubes, provided with a nozzle from which the medication can be dispensed directly from the container onto the eye, the nozzle 4 is made a non- white colour, preferably blue, which contrasts with the colour of the medication and contrasts with the colour of the rest of the container 1. Colouring the nozzle 4 in this way substantially improves the visual discrimination afforded between the nozzle and both the medication and the white of the eye when the medication is administered. <IMAGE>
Patent GB-2055739-A (GB)
Title: Production of microcapsules by interfacial polymerisation
IPC: C09D11/02
Filed: 1980-07-18
Abstract: When a thio-acid salt is contained in an aqueous emulsifier solution in producing microcapsules by a conventional interfacial polymerization method, in which a hydrophobic liquid having dissolved therein a polyisocyanate compound is dispersed in the emulsifier solution, the viscosity increase of the emulsion in the emulsification step can be prevented and storage of the resulting emulsion for a long period of time and emulsification at room temperature are made possible. <IMAGE>
Patent GB-2082078-A (GB)
Title: Apparatus and process for separating emulsions
IPC: B01D17/02
Filed: 1980-08-13
Abstract: For separating an emulsion comprising substantially a heavier and a lighter liquid there is used a plurality of closed, liquid-filled separation chambers (10-17) which are arranged one above the other and have a substantial horizontal extension compared with their vertical extension, and each of said chambers having a lower outlet (29) for separated heavier liquid, an upper outlet (56-60) for separated lighter liquid, and an emulsion-inlet (36) arranged at a substantial flow-distance from said two outlets. The separation chambers are maintained under an overpressure by causing said heavier and said lighter liquid, separated in said chambers by self-separation under the action of gravity, to pass from said chambers via a respective one of two pressure-holding vessels (34, 64) containing a respective heavier or lighter liquid. The emulsion is fed batchwise into at least one separation chamber (10-17) at a time, at a temperature greater than the temperature of the liquid already present in said chamber, and in a volumetric amount which is less than the volume of said chamber. While supplying said emulsion to the chamber, the lighter-liquid outlet (56- 59) of said chamber is held closed (at 61) while the outlet (29) for the heavier liquid is held open, so that the emulsion fed to said chamber displaces a corresponding amount of solely heavier liquid from said separation chamber. The emulsion inlet of the chamber is then closed (at 53) and its outlet for lighter liquid is opened, whereat separated lighter liquid obtained by said self- separation of the emulsion in said chamber is forced out through an associated outlet (56-60) by causing a corresponding amount of separated heavier liquid to flow from the pressure- holding vessel (34) containing said heavier liquid back into the separation chamber. <IMAGE>
Patent GB-2081792-A (GB)
Title: Formwork Soldier
IPC: E04G17/14
Filed: 1980-08-13
Abstract: A formwork soldier comprises two U-shaped channel members (2 and 4) spaced apart by brackets (8). The U- shaped channel members have webs (bases) (6) on which are formed shallow corrugations or "ripples" (10) which provide stiffness and enable lighter weight material to be used. <IMAGE>
Patent GB-2059191-A (GB)
Title: An electrically conductive terminal
IPC: H01R4/36
Filed: 1980-09-24
Abstract: A terminal assembly comprises a clip 1 for a terminal of a cartridge fuse, a cradle 4, integral with the clip, and, for fitting around the cradle, a collar 6 having a clamping screw 8 in a tapped hole 7 extending therethrough. In use, the collar 6 is fitted around the cradle 4, and a bare end of an electric conductor is positioned in the cradle 4, the clamping screw 8 is being tightened to clamp the bare end against the internal surface of the cradle. <IMAGE>
Patent GB-2075172-A (GB)
Title: Tube-coil heat exchanger
IPC: F28D7/04
Filed: 1980-09-25
Abstract: A heat exchanger comprises one or more pancake coils of tubing 6 retained by supports 7 within a framework 1, 2 and 3 of sheet material. The ends of the tubing are connected to respective inlets and outlets 9 for fluid medium supply. The connection is effected by passing the tubing through shrouds 8 which include a manifold plate 12 into which the or each tube 6 end is sealingly connected, the plate being in communication with a coupling member 11 for connection with the respective inlet or outlet fluid supply. <IMAGE>
Patent GB-2086695-A (GB)
Title: A data sheet register for a repertory dialler
IPC: B42F17/34
Filed: 1980-12-10
Abstract: A card index enabling transfer of a selected, tagged card from a stack of such cards and including apparatus for selecting a connection in a communications system in which the information defining a desired connection is transmitted by operating two release members, one of which is connected with a directory of subscribers whilst the other is connected with a coding and transmitting device. The index comprising a casing (2) the upper plate (214) of which has a depression (213) for receiving a stack of index cards (9), and which pivotably supports a cover covering depression (213); the cover (215) being connected with two-armed selection and control levers (220 to 231) which act on the cards by means of levers and which carry at their front free ends keys (220a to 231a) and at their rear ends tongue-like sections. The stack of cards is held in guides (217, 218). The casing (2) includes a keyboard (6) having a call display device (27) the selection keys (220a to 231a) of which are connectable with a coding and information transmitter including a microprocessor (50). Each selection key (220a to 231a) carries a pin which is connectable to a contact plate arranged in the casing (2) in the direction of movement of the pins and which carries a layer of parallel linear contacts (21). Such that one contact may be pressed by means of a pin, onto one of a set of transverse contacts arranged orthogonally below the linear contacts. <IMAGE>
Patent GB-2071511-A (GB)
Title: Rotary filter
IPC: B01D33/15
Filed: 1981-01-19
Abstract: A rotary filter for water purification, comprises at least two circular filter discs 3 mounted on a common shaft 1 and defining alternate inlet and outlet spaces within a housing 5, which has staggered inlets 6 and outlets 7. The peripheries of the discs engage the housing 5 via sliding seals and rollers, and the filtering area of the discs is extended by radial ridges 4 thereon. <IMAGE>
Patent GB-2080989-A (GB)
Title: Improvements in or Relating to Data Processing Systems Including Cache Stores
IPC: G06F12/0862
Filed: 1978-10-12
Abstract: A data processing system includes a cache store to provide an interface with a main storage unit for a central processing unit. The central processing unit includes a microprogram control unit in addition to control circuits for establishing the sequencing of the processing unit during the execution of program instructions. Both the microprogram control unit and control circuits include means for generating pre-read commands to the cache store in conjunction with normal processing operations during the processing of certain types of instructions. In response to pre-read commands, the cache store, during predetermined points of the processing of each such instruction, fetches information which is required by such instruction at a later point in the processing thereof.
Patent GB-2069940-A (GB)
Title: An impact protection device for vehicles
IPC: B60R21/34
Filed: 1981-01-26
Abstract: The device has a bumper 10 extending transversely across the vehicle front and a lower lying substantially rigid protector part 11 arranged beneath the bumper 10 and extending forward in the manner of a spoiler. The protector part 11 extends across the vehicle and round the sides to adjacent the wheel arches. The protector 11 has a hard skin 15 with a solid foam interior incorporating reinforcements 12, 13, 16. The protector 11 is yieldable to move behind the front edge of the bumper 10 when greater than a predetermined force is applied thereto. In other embodiments, at least the front part of the protector part is movable selectively into two positions; a basic position where the protector part projects beyond the bumper 10 and a retracted position behind the bumper where it is aligned with the face of the bumper. <IMAGE>
Patent GB-2091879-A (GB)
Title: Measuring mean dimension of a workpiece
IPC: G01B7/00
Filed: 1981-01-28
Abstract: A system for measuring the mean dimension of a workpiece, using a damped measuring lever which scans the surface of the workpiece. The system comprises a measuring lever 2 and transducer circuitry 3, 4, 5 which transmit the change in dimension as a measuring signal 19. A measuring operation is performed in which the measuring lever 2 is lowered to scan the workpiece surface so that the average- value measurement can be carried out. A first comparator 6 compares the decreasing measuring signal 19 with an upper threshold value 9 as the measuring lever is lowered and a second comparator 11 compares the decreasing measuring signal 19 with a reference threshold 22 which is initially preset but can then be varied by feedback from a storage device 12. An average-value integrator 14 initiates the integration of the measuring signal 19 if the measuring signal has not fallen below the reference value 22 at the end of a period of time set by a time- function element 7, connected to the first comparator. If the measuring signal 19 falls below the reference value 22 during said period of time or during a subsequent integration period, a lifting device (15) is actuated to remove the measuring lever from the workpiece, the time-function element 7 is reset, a reduction of the reference value 22 is effected by the storage device 12 and the measuring operation is repeated, effecting a periodic lowering and lifting of the measuring lever 2 until a measuring operation is terminated as a result of satisfactorily carrying out the measurement of the mean dimensional irregularity. <IMAGE>
Patent GB-2070771-A (GB)
Title: Methods and apparatus for measuring the cross-sectional area of a duct and the volume flow rate of fluid in the duct
IPC: G01F1/66
Filed: 1981-02-04
Abstract: Apparatus for measuring the area of a blood vessel and the volume flow rate of blood in such vessels, comprises an ultrasonic Doppler velocimeter (10, 12, 14 and 26) which derives a number of velocity signals dependent on the number of different velocities in a duct (13) and is coupled by way of a limiter 15 to a frequency-to-voltage converter 16 which therefore has an output with one component for each velocity signal. A further frequency-to-voltage converter 21 provides a signal dependent on the number of velocity signals and since this number depends on the duct area, the output from the converter 21 is a measure of this area. By using another frequency-to-voltage converter 23 and a mean detector 24, a mean velocity signal is obtained which when multiplied by the area signal generates volume flow rate. <IMAGE>