baber/WOPTO huggingface dataset:
Patent GB-1411398-A (GB)
Title: Metal oxide casting
IPC: C04B33/32
Filed: 1972-12-22
Abstract: 1411398 Metal oxide casting CARBORUNDUM CO 22 Dec 1972 [3 Jan 1972] 59500/72 Heading C1J A process for making abrasive grain comprises adding to a melt comprising a major proportion of Al 2 O 3  and a minor proportion of ZrO 2  a metal or metal alloy which increases the fluidity of the melt and which is oxidizable under the conditions of the melt, cooling the melt in a thin sheet and crushing to produce the abrasive grain. The metal is Al or Al alloy and may be added as increments on pouring portions of the melt.
Patent GB-1285389-A (GB)
Title: A product for, and a method of, treating the polluted of a water surface
Inventor: TASSARA EMMA
IPC: C02F1/68
Filed: 1970-12-16
Abstract: 1285389 Treating polluted water E TASSARA 16 Dec 1970 [12 Jan 1970] 59722/70 Heading C1C A product for causing substances polluting the surface of water to sink below said surface, comprises a mixture of organic and inorganic compounds, the mixture having an average grain size between 110 and 140 mesh (A.S.T.M.) and bulk density of between 0À25 and 0À55. The mixture contains between 0À5 and 5% by weight of soluble organic compounds such as sulphonates and sulphates of alkyl aryl products having 8-30 carbon atoms. The mixture may also contain water-soluble inorganic compounds such as sulphides, chlorides, sulphites or hyposulphites and non-water soluble salts and/or metal oxides.
Patent GB-1212900-A (GB)
Title: Production of organic sulphur-containing compounds
IPC: C07C67/00
Filed: 1968-12-17
Abstract: 1,212,900. Producing mercaptans and organic sulphides. MONSANTO CO. 17 Dec., 1968 [26 Dec., 1967], No. 59893/68. Heading C2C. An organic mercaptan or organic sulphide is obtained by reacting an olefinically unsaturated compound with hydrogen sulphide or with an organic mercaptan in the presence of an organic peroxide catalyst and an iron phthalocyanine, e.g. ferrous phthalocyanine or chloroferric phthalocyanine. The preferred peroxide catalysts are cumene hydroperoxide and t-butyl hydroperoxide. The olefinic compounds may be acyclic or cyclic, preferably C 5 -C 12  dicyclic olefins or C 5 -C 8  acyclic olefins. The organic mercaptans which may be used as starting materials are preferably alkyl or alicyclic mercaptans containing up to 12 carbon atoms but also include phenyl and tolyl mercaptans and mercaptobenzthiazole. The catalyst may be added dissolved in a solvent, e.g. a portion of the olefin to be reacted or an inert solvent such as benzene or cyclohexane, and the presence of water is not normally deleterious.
Patent GB-1260736-A (GB)
Title: Combined endless loop film and endless loop magnetic tape cartridge
IPC: G03B31/02
Filed: 1969-12-18
Abstract: 1,260,736. Film cartridges. RETENTION COMMUNICATION SYSTEMS Inc. Dec. 18, 1969 [April 23, 1969], No.61799/69. Heading G2E. [Also in Division G5] A cartridge contains an endless film and endless magnetic tape on reels arranged so that one is at least partly located in a space within the rim of the others. The reels may be nested one within the other, Fig. 1 (not shown), but as shown, the tape reel 32 is journalled on a stud shaft 34 moulded in a central plate 12 having an apertive 36 into which extends a film reel 39 journalled on a spindle which may be integral with the plate 12. The film is transported past a projection opening in the front face by a claw, sprocket or maltese cross drive, and the tape is driven by a capstan/pinch roller arrangement. Pads are provided for cleaning and/or lubricating the film or tape, and the cartridge casing is completed with transparent walls 41, 43. Anti-spill brakes may be provided.
Patent GB-2024980-A (GB)
Title: Mechanism for Converting Rotary Motion into Cyclically Variable Rotary Motion or Vice Versa
IPC: F16H21/12
Filed: 1978-07-11
Abstract: Apparatus is disclosed comprising one or two cranks 20, 22 mounted for rotation about a first axis 12 and connected by connecting rods 24, 26 to two cranks 14, 18 mounted for rotation about a second axis 16 parallel to but spaced from the first axis 12. Rotation of the first crank or cranks 20, 22 will cause the second cranks 14, 18 to rotate with relative angular speeds which vary cyclically, the variation depending on the pitch of the two axes 12, 16 and the throw of all of the cranks. The second cranks, 14, 18 can be connected for example to rotating or reciprocating parts of a mechanism whose motion is interdependent and where the cyclic variation is useful to cause the parts to move rapidly in one phase of the cycle and more slowly in another phase of the cycle. <IMAGE>
Patent GB-2000744-A (GB)
Title: Improvements in the packaging of liquids
IPC: B65D77/06
Filed: 1978-07-11
Abstract: A flexible bag like member (C) is formed by two sheets of material sealed together at their edges, and has two socket members (4, 5) fastened thereto, one of which (5) serves for filling of the container and may subsequently be sealed and the other of which (4) is closed by means of a frangible diaphragm and is adapted to receive a tap through which the contents of the bag may be dispensed. Such a construction facilitates the exclusion of air during filling and subsequent use and is suitable for use as the liner of a composite container used for dispensing milk, wines or other liquids.   <IMAGE>
Patent GB-2031196-A (GB)
Title: Recording apparatus
IPC: G06M1/276
Filed: 1978-10-04
Abstract: A counter of the type comprising a train of number wheels turned by rotation of an input shaft is provided with a tripping mechanism which operates, when tripped, to generate an output signal, the tripping mechanism being tripped by the counter when it reaches a first predetermined count, that is when the wheels are in a first predetermined relative angular orientation, and remaining tripped until manually reset or, if not reset, until the counter reaches a second predetermined count (which may be when the counter has completed its cycle and returns to zero). The counter is adapted for use in a motor vehicle service recorder by having an input shaft adapted for connection to a drive cable from a motor vehicle engine or gearbox whereby to determine the total number of engine revolutions or the distance travelled by the vehicle. <IMAGE>
Patent GB-2031314-A (GB)
Title: Strap wrench for gripping cylindrical articles
IPC: B25B13/52
Filed: 1978-10-09
Abstract: A strap wrench for gripping cylindrical articles 16 such as motor vehicle oil filter casings comprises a substantially circular disc 1 with rotary coupling means such as an axial non- circular (e.g. square or hexagonal) hole 2, recess or projection or a transverse slot or rib, for receiving a tool such as a socket bar by means of which it may be rotated, a flexible strap 4, and a link 5 pivotally joining the strap end to the disc adjacent to the periphery thereof and providing an opening through which the free end 4a of the strap may be passed so that when the strap is in position around the cylindrical article, and the disc is turned, the free end of the strap is gripped between the peripheral surface of the disc and the outer end of the link and the strap is tightened by rolling of the disc with respect to the periphery of the cylindrical article. <IMAGE>
Patent GB-2034394-A (GB)
Title: Improvements relating to band clamps
IPC: F16B2/08
Filed: 1978-11-11
Abstract: A band clamp for a drum comprises a pair of links (15, 16) pivotally connected to each other and each pivotally and releasably connected with a corresponding end of a band 10 which embraces the drum. The three pivot axes are perpendicular to a longitudinal axis of the drum and on one of the links there is provided a flange (23) which, when the clamp is tightened, enters a gap between the ends of the band and presents a face which is parallel to the pivot axes for manual application of pressure to the links. Provision is made to prevent relative rotation of the links through more than 180 DEG  and lever 16 is pierced to give an aperture for a seal. <IMAGE>
Patent GB-2011749-A (GB)
Title: Fixed echo canceller for radar systems
IPC: G01S13/524
Filed: 1978-11-22
Abstract: The invention relates to a fixed echo canceller for radar systems comprising one normal channel and one controlling channel. The controlling channel includes at least a logarithmic amplifier (12) and a calculating circuit (13) which measures the mean amplitude of the clutter echo signals over a range and bearing cell and then over one or more antenna revolutions. This latter mean value for the amplitude of the video signals is used to control the gain of the linear amplifier (9) in the normal channel of the arrangement, which includes a demodulator 10 and a filtering circuit 11 which suppresses the fixed echoes. <IMAGE>
Patent GB-2013370-A (GB)
Title: Controlling variable-displacement hydraulic devices
IPC: F04B1/30
Filed: 1979-01-12
Abstract: A variable-displacement hydraulic pump (10) has a pivotable swashplate (19) the position of which (19) is set by a 2-stage electrohydraulic servovalve (11) and serropistons (22, 24), and a mechanical feedback connection is provided between the swashplate (18) and the output stage of the servovalve (11) by means of a lever (96) and an arm (103) coupled to the follow-up sleeve (55) of the output stage. As an alternative, the first stage of the servovalve may control the sleeve and the spool may be coupled to the arm. <IMAGE>
Patent GB-2046982-A (GB)
Title: Battery cell holder
IPC: H01M50/204
Filed: 1979-02-12
Abstract: Circular section rechargeable cells are held by a force fit in a barrel of e.g. steel or aluminium. The ends of the barrel are closed by plastic caps.
Patent GB-2024326-A (GB)
Title: Compressor arrangements
IPC: F04D25/16
Filed: 1979-03-08
Abstract: The shaft 20 of a gas turbine engine carries a main compressor rotor 18 which supplies air to a combustion chamber 24, a power turbine rotor 28 which receives gases from the combustion chamber, and an auxiliary compressor rotor 34 which supplies air to an outlet 40, completely independently of the airflow in the main compressor. The inlets of the two compressor rotors 18, 34 face one another, and draw their airfrom a common inlet space 32. The auxiliary compressor is controlled by guide vanes 42. To reduce the load on the engine at starting, the guide vanes 42 can completely shut off the flow to the rotor 34. <IMAGE>
Patent GB-2028385-A (GB)
Title: Warping and Warp Thread Tension Device
IPC: D02H13/22
Filed: 1979-07-04
Abstract: A hand loom, wherein warp ends are let off from separate bobbins 42 on a pike 41, are shed by the needles 21 of a travelling carriage knitting machine 20 with a stationary reed 24, and are taken up by a cloth beam 52 with a one way ratchet device 53, has the provision of a warp tension device 100 comprising a stationary comb 114 against which the ends W are pressed by a spring loaded channel- shaped member 121 whose pressure may be manually relieved by rods 131. The hand operated beating-up reed 32 is spring loaded, the knitting- shedding carriage 20 is adjustably positioned on the frame 10 which has a vice 13 for clamping to a worktop. <IMAGE>
Patent GB-2030083-A (GB)
Title: Vehicle underride protection device
IPC: B60R19/56
Filed: 1979-09-04
Abstract: The device comprises a horizontal member 10 carried by arms 8, 9 which depend from a torsion bar or bars 5, 17 to which they are secured. Another part of the torsion bar or bars is fixed relative to the vehicle. Under the impact of another vehicle from the rear, the horizontal member 10 moves forwardly against the resistance provided by the torsion bar or bars and is subsequently returned by the bar or bars to its normal position. <IMAGE>
Patent GB-2035300-A (GB)
Title: Americanin
IPC: C07C45/00
Filed: 1979-09-17
Abstract: The present invention provides compounds of the formula:-   <IMAGE>  as well as the salts thereof. The present invention also provides process for the preparation of these compounds and pharmaceutical compositions containing them.
Patent GB-2033516-A (GB)
Title: Anti-skid brake pressure modulator
IPC: B60T8/36
Filed: 1979-10-12
Abstract: A vehicle anti-skid braking system has a valve 1 connecting wheel brakes I, Ia, Ib to a supply line 7a and a modulator 13. A solenoid valve 2 responsive to skid signals controls the movement of the valve spool 3. Movement to the left of the position shown closes inlet valve 8a and depresses valve stem 18 so that the modulator power piston 15 is driven to the right to increase the volume in communication with line 12a and hence with the lines I, Ia, Ib. <IMAGE>
Patent GB-2037361-A (GB)
Title: Security Container
IPC: E05C17/16
Filed: 1979-11-14
Abstract: A security retainer is constructed after the fashion of a conventional bolt but with the bolt (12) having a reduced cross-section portion (16) and with the keeper housing (11) having a pivoted retainer (23) mounted thereon about a horizontal axis. The retainer (23) has an enlarged opening (26) which receives any portion of the bolt (12) and also has a restricted cross section slot (25) communicating with the opening (26) and capable of slidably receiving only the reduced cross-section neck (16) of the bolt so that a door bearing bolt (12) may be opened only by a restricted amount. Spring detent means (14, 21) are engageable to locate the bolt in a "secure" but unlocked condition in which the neck (16) is permitted restricted sliding movement along the slot (25) of the retainer (23). For complete fastening the bolt (12) may be further shot so that the non-reduced portion (15) is located in opening (26), thus preventing any opening of a door etc. bearing the bolt. The door may be completely freed by retracting bolt (12) into housing (10). <IMAGE>
Patent GB-2039038-A (GB)
Title: Monitoring ammonia oxidation
IPC: B01J8/00
Filed: 1979-12-03
Abstract: In a process and apparatus for maintaining the efficiency of ammonia oxidation in a nitric acid plant, the ammonia content of the reactant mixture and the nitrogen oxide content of the reaction product are determined, any nitric oxide in the sample of reaction product first being converted to nitrogen dioxide at elevated temperature and pressure. The apparatus comprises delay means for ensuring conversion of the sample of reaction product before analysis. Analysis may be by UV or IR spectrophotometry of by mass spectrography.
Patent GB-2047967-A (GB)
Title: Electric switch
IPC: H01H25/04
Filed: 1980-04-15
Abstract: A switch, for remotely actuating, for example, radio equipment, comprises two housing parts 1, 3 which are connected together by means of a screw 8 so that one of the housing parts 1 is tiltable or displaceable downwards against the action of spring 6 so as to actuate one or more sensing switches 15, 16 on a printed circuit board 14 connected to a cable 18 of equipment to be actuated. The housing part 1 has a large surface area which permits easy and reliable operation of the switch, particularly in darkness. <IMAGE>
Patent GB-2053420-A (GB)
Title: Fluid metering device
IPC: G01F13/00
Filed: 1980-04-17
Abstract: A fluid metering device for cutting-off fluid flow along a flow line after a predetermined volume of fluid has passed therealong comprises a housing having a fluid inlet 13 and a fluid outlet 15, a fluid passage 17 for fluid communication between the inlet and the outlet, a valve seat 23 provided in the fluid passage, a valve member 21 movable into and out of engagement with the valve seat, means 31 for permitting limited fluid flow along the passage when the valve member is out of engagement with the valve seat, the valve member being movable towards the valve seat in response to fluid pressure on the inlet side of the valve member, and means 41 for resisting movement of the valve member towards the valve seat, fluid flow being cut off when the valve member is in engagement with the valve seat. After an upstream stop-cock has been closed, the valve may be reopened by opening a further valve 91 to release fluid pressure acting on the closure member 21. <IMAGE>
Patent GB-2047596-A (GB)
Title: Method of wire-bonding and wire-bonder
IPC: B23K20/00
Filed: 1980-04-21
Abstract: A method of wire-bonding comprises a first step (Fig. 3) of bonding the wire to a selected one of the electrodes of a semiconductor chip on a ceramic package and to a lead to be connected to the selected electrode. During this, the distance Dal from the highest starting position or home position A of an ultrasonic wedge bonding tool to the selected electrode and the corresponding distance Dfm to the corresponding lead are measured and stored. When bonding the remaining electrodes and leads, the speed and range of each movement of the tool is based on the measured distances to provide a desired motion of the tool (Fig. 4(a)). In particular, the tool is moved slowly into contact with the electrode or lead, as shown at C, only in ranges +/-  DELTA  alpha  and +/-  DELTA  beta  about the determined distances Dal and Dfm. With this method, it is possible to increase the speed of the bonding process because the times T1' and T2' for which the tool is moving slowly are less than the times T1 and T2 which would otherwise be taken. The quantities  DELTA  alpha and  DELTA  beta  are based upon statistical determinations of the accuracy of manufacture of the components. A wire-bonder for performing this method is also disclosed and includes a memory store for controlling the rotational speeds and angles of a cam for effecting the requisite tool movements. <IMAGE>
Patent GB-2050266-A (GB)
Title: Hydraulic system for a motor vehicle
IPC: B62D5/07
Filed: 1980-04-23
Abstract: A piston pump 1 driven by the vehicle engine has a hydraulic motor 9 connected to the pump 1 by its input pipe 8 and to auxiliary power steering 14, 15 by its output pipe 13. The pump 1 comprises an eccentric 2, a piston 3 and a non-return valve 7. Other Figures show the driving of secondary units of the vehicle, and the use of two motors in series and in parallel. The arrangement smoothes out pulsations in the delivery from the pump 1. <IMAGE>
Patent GB-2057240-A (GB)
Title: Rotary combine
IPC: A01F7/06
Filed: 1980-08-13
Abstract: A rotary combine and a method for threshing and separating crop are disclosed which utilize separate threshing and separating assemblies (27, 28). The assemblies are in the form of cylinders and the separating assembly is located transversely and rearwardly of the threshing assembly. Crop is introduced tangentially into the threshing assembly, conveyed by helical guide vanes (22, 23) to opposite end portions of the threshing assembly, passed from the threshing assembly axially into the separating assemblies and conveyed by a further series of helical guide vanes (34) to the rearward portion of the separating assemblies where the crop residue exits from the combine. <IMAGE>
Patent GB-2061241-A (GB)
Title: Bricks containing pulverised fuel ash and their manufacture
IPC: C04B33/135
Filed: 1980-08-28
Abstract: Bricks are made from pulverised fuel ash (PFA) by classifying the PFA to remove the large particles and preferably also to remove the fine particles; the classified PFA is then mixed with a predetermined quantity of fuel and sufficient binder clay and moisture to enable a coherent green brick to be formed, e.g. by semi-dry pressing and the green brick is fired in a kiln or clamp. The classifying of the PFA removes the larger particles, commonly containing a high proportion of carbon and facilitates the standardising of the carbon content; the added fuel may be a low-grade fuel, e.g.. sewage sludge, or colliery spoil or may make use of the coarse fraction.
Patent GB-2078579-A (GB)
Title: A Method for Preparing a Polygonal Billet or Ingot for Processing in a Skew-roller Piercing Mill
IPC: B21B19/04
Filed: 1980-09-11
Abstract: In order to prepare a blank (3), in the form of a rolled or cast polygonal billet or cast polygonal ingot, for processing in a skew-roller piercing mill, the longitudinal edges of the blank are cylindrically deformed to approximately circular cross section. The blank (3) is deformed in a roll stand (11) comprising grooved rolls (13 to 16) defining a substantially circular pass, the blank being pushed through a guide (10) to the rolls, by means of a ram. The stand may have two sets of rolls arranged in tandem. <IMAGE>
Patent GB-2063082-A (GB)
Title: Seats for swings
IPC: A63G9/00
Filed: 1980-09-23
Abstract: A belt or strap seat for a swing has an internal reinforcement in the form of a tough, flexible, peripheral filament or cable (5). The filament or cable resists cutting through the seat with a knife in an act of vandalism and has the advantage of presenting a blunt surface if the seat is cut away to reveal the reinforcement. The cable is of nylon or steel and passes round grooves in end-plates 4. Synthetic net fabric and a further cable 10 are embedded in the seat.   <IMAGE>
Patent GB-2085405-A (GB)
Title: Trays formed from blanks
IPC: B65D5/20
Filed: 1980-10-16
Abstract: A pre-assembled collapsible tray has a pair of opposed walls 16, 18 each comprising two side-by- side panels 20, 22 and an additional portion of the blank material sandwiched between the panels 20, 22 at least in each corner region of the tray, each additional portion being defined by a flap hingedly attached to the end of one of said panels 20. <IMAGE>
Patent GB-2090956-A (GB)
Title: Signal Light
IPC: H01J61/80
Filed: 1981-01-12
Abstract: A signal device comprises a manually graspable closed container (1) having an impact-resistant transparent end region (2) sealed thereto surrounding a xenon flash tube (8), the closed container containing electronic circuitry (7) whereby the flash tube is caused to flash intermittently, electricity storage means (10) to operate the circuitry, and switch means (11) operable from outside of the sealed container. <IMAGE>
Patent GB-2071268-A (GB)
Title: End closure/expulsion piston for container for plastic material
IPC: B65D83/00
Filed: 1981-02-04
Abstract: A resilient end closure for cylindrical extrusion press container (3) which also serves as an expulsion piston head for viscous plastic material (8) comprises a crown plate (1), a hollow skirt portion (2), and at least one sealing lip (4). The sealing lip (4) is swept back at an angle towards the filling end of the container to create a pocket (5) which enhances the venting, sealing and driving effects. A wiping lip may be provided around the periphery of the crown plate (1). Internally, the piston head may be provided with a deformable annular lip (7) and a buffer ring (7a) to enable the piston head to be driven by a mechanical drive member fitted into the piston head. <IMAGE>
Patent GB-2093400-A (GB)
Title: Melt-spinning fibres
IPC: D01D5/088
Filed: 1981-02-19
Abstract: A method of spinning fibres, particularly of thermoplastics material (e.g. polyolefins), intended for absorption of hydrophobic liquid, includes the steps of extruding melted thermoplastics material 12 radially outwards, through at least one rotating spinneret 5, to form fibres 13 of melted thermoplastics material around the periphery of the spinneret, and providing cooling medium 18 moving axially with respect to and through the spinneret at a central portion of said spinneret for flowing between and cooling the fibres of melted thermoplastic material to keep the fibres apart until they have solidified. <IMAGE>
Patent GB-2094325-A (GB)
Title: Ethylene-vinyl acetate copolymer packaging films
IPC: B65D65/38
Filed: 1981-03-06
Abstract: Polyolefin film bags are susceptible to failure at low temperatures, as when used to contain frozen foods. Improvement in durability has been obtained by using ethylene/vinyl acetate copolymer film bags, but the film cannot be effectively used in printing and packing machinery if the vinyl acetate content exceeds 7% by weight. It has now been discovered that low temperature durability of such films can be improved by increasing the vinyl acetate content to from above 7% up to 15% by weight while retaining practical machineability, if the melt flow index of the copolymer is selected to be from 0.2 g/10 min to 0.9g/10 min (ASTM D 1238). The copolymer may be blended with a rubbery modifier, such as a copolymer of ethylene and propylene or a copolymer of styrene and butadiene.