baber/WOPTO huggingface dataset:
Patent GB-2002047-A (GB)
Title: Sinking a cased borehole
IPC: E02D7/28
Filed: 1978-07-14
Abstract: A method for sinking a cased borehole for producing cased pile foundations uses an apparatus comprising a crane K, a drilling appliance 10 capable of being lowered into the borehole and a tube extraction machine 40 with double- acting lifting cylinders for increasing the drilling pressure and for extracting the drop tube after the pile has been concreted. The drilling appliance is capable of producing a borehole with a larger diameter than that of the drop tube and can be fixed to the drop tube by means of a clamping device for withstanding the torque of the motor used for driving the drilling tool. The drop tube is axially secured and is prevented from rotating with respect to the ground, a section of borehole having a greater diameter than the diameter of the drop tube is drilled, and subsequently the axial securement of the drop tube is released so that the drop tube slides downwardly by a length corresponding to the length of the section of borehole drilled. <IMAGE>
Patent GB-2000705-A (GB)
Title: Surface finishing equipment
IPC: B24B21/14
Filed: 1978-07-18
Abstract: Surface finishing equipment comprises a drill attachment 10 including an elongate member having a belt guide 15 at one end portion and at its other end portion means of attachment to a drill body. Such a drill attachment is arranged to support an endless belt 27 of the surface finishing material, for example emery cloth, to be driven directly or indirectly from the drill chuck or spindle to travel around the belt guide spaced from the drill body. The attachment facilitates surface finishing in restricted spaces inaccessible to conventional grinding, sanding or polishing wheels. <IMAGE>
Patent GB-2027607-A (GB)
Title: Contacting immiscible liquids
IPC: B01D11/04
Filed: 1978-08-16
Abstract: A liquid/liquid contacting process is described for use with a contactor as described in U.K. Specification 972,035, constituted by a vessel through which flow two substantially immiscible liquid phases of different specific gravities. Rotating conveying means within the vessel cause droplets of each phase to be conveyed into the other phase through the interface. A fine, inert granular material is included in the contactor and causes to continuously fall through the liquid phases.
Patent GB-2006640-A (GB)
Title: Chromatographic materials
IPC: B01J20/32
Filed: 1978-09-11
Abstract: COMPOSITION FOR CHROMATOGRAPHY A chromatographic material comprising an inorganic support-polysaccharide particle matrix is described.  The matrix comprises an inorganic support having a high surface density of hydroxyl groups and, covalently attached thereto, insoluble particles of a polysaccharide.  The free hydroxyl groups of the matrix can be activated, for example, by treatment with cyanogen bromide or sodium metaperiodate, to form active sites where ligands can be attached for affinity chromatography.
Patent GB-2044804-A (GB)
Title: Heat treatment method
IPC: C21D1/76
Filed: 1979-03-16
Abstract: In order to be able to control accurately carbon potential in a heat treatment process, an atmosphere of predetermined carbon monoxide concentration and chosen carbon potential is formed in a working chamber of the heat treatment furnace by admitting to the furnace inert gas (typically nitrogen), hydrocarbon (typically methane) and at least one organic liquid (typically methanol) which decomposes under the action of heat to yield carbon monoxide and hydrogen. The flow rates of these fluids are selected so as to give the predetermined carbon monoxide concentration. The respective flow rates required to give the carbon monoxide concentration at a chosen carbon potential are determined empirically. In a typical procedure, nitrogen and methanol are admitted to the chamber to build up the carbon monoxide concentration until the predetermined value is reached; hydrocarbon is then admitted and the methanol flow rate increased or nitrogen flow rate decreased so as to maintain the predetermined carbon monoxide concentration at the chosen carbon potential.
Patent GB-2026311-A (GB)
Title: Key-retaining loop for a key case
IPC: A45C11/32
Filed: 1979-06-20
Abstract: A key retaining loop to be removably inserted in a key case comprises a resilient split ring 20 releasably engaged with a sleeve 24 having an enlarged head 26. In one embodiment the legs 21 of the split ring 20 have wings 22 engaging snappingly a recess 34 formed in the sleeve 24 by a bayonet arrangement. An alternative embodiment has the legs 21 screwthreaded for engaging internal tapping on the sleeve 24. <IMAGE>
Patent GB-2051517-A (GB)
Title: Digital television transmission system and encoder and decoder therefor
IPC: H04N11/04
Filed: 1979-06-20
Abstract: A digital transmission system for PAL (or NTSC) colour television signals encodes the samples so that successive ones of the samples represent respective ones of the luminance and chrominance components, with the position of each individual sample in the stream, whether luminance or chrominance, being related to the position on the television raster of the signal element which only that sample describes. Furthermore, the luminance samples are taken at the sample rate of the encoded signal with selected samples, e.g. every one in three, being omitted. The omitted sample periods are occupied in the encoded signal by chrominance signals. To this end in a coder (10), Y, U and V component signals are digitised (32, 34, 36) and the U and V signals multiplexed (40). The resultant chrominance signal is multiplexed (42) into the luminance signal by replacing every third luminance sample by a chrominance sample. At the decoder (12), the samples are demultiplexed (46, 48) and the missing luminance samples estimated (50) from the transmitted ones. <IMAGE>
Patent GB-2023204-A (GB)
Title: Flight of Steps with Treads Held Level by Parallelogram Linkage; Sledge; Trolley; Shelves
IPC: E06C1/38
Filed: 1979-07-06
Abstract: In one of several embodiments, a staircase has parallel metal rails 12, 14 attached to a wooden string 10. Angle section tread supports 16 are pivotably attached between the rails 12, 14 to form a parallelogram linkage. Before the rails 12, 14 are secured to the string 10, therefore, the parallelogram linkage permits adjustment of the angle of inclination of the staircase while still maintaining the tread supports 16 horizontal. This enables the staircase to fit stairwells constructed with wider tolerances than hitherto. Once the rails 12, 14 have been secured, treads 32 are affixed between opposing tread supports 16, and risers 52 are fitted. In other embodiments, the steps may be used, collapsed, as a sledge, or, with attached wheels, as a trolley; or, with vertical rails and horizontal treads, as shelving. <IMAGE>
Patent GB-2028873-A (GB)
Title: Gold Alloy Electroplating Bath and Method
IPC: H05K3/24
Filed: 1979-08-31
Abstract: A gold alloy electroplating bath which is particularly useful in the production of electrical connectors or contacts for use in electronic apparatus contains a soluble gold cyanide, cadmium in the form of a bath soluble cadmium compound, complex or chelate, and to provide a small amount of carbon in the gold electrodeposit obtained from the bath, an amine or imine which will reduce the cathode efficiency of the bath by at least 15%. The amine may be an alkylpolyamine or polyalkyleneimine. Electrodeposits which can be obtained from the bath consist of a gold- cadmium-carbon alloy which has a stable low contact resistance which remains substantially constant even at elevated temperatures over prolonged periods, which renders said alloy of particular advantage in the manufacture of electrical connectors and electrical contacts. The bath may also contain an organo-phosphorus compound.
Patent GB-2057921-A (GB)
Title: Producing electric storage battery plates
IPC: H01M4/82
Filed: 1979-09-07
Abstract: A method of manufacturing plates for electric storage batteries includes the steps of expanding a strip of lead or lead alloy leaving a central unexpanded land, repeatedly engaging the unexpanded land with movable gripping means 36 and 37 a predetermined distance so as to advance the strip through a lozenge punch, removing one or more lozenges of metal from the land by means of the lozenge punch leaving holes 20 and 22 and gripping the central land fixed gripping means 30 and 31 to maintain the strip stationary at those times when the movable gripping means is not moving. The invention also relates to an apparatus for carrying out the method. <IMAGE>
Patent GB-2033551-A (GB)
Title: Rotary valve
IPC: F16K5/06
Filed: 1979-10-17
Abstract: In a rotary ball type valve adapters 45, 46 are removably attached to a valve body 11 and normally retain a pair of annular sealing means 40, 41 against opposite sides of the ball member 18. Snap rings 68, 69 on the body and projecting into the valve chamber prevent the ball member 18 and the upstream sealing means from being blown out of the chamber by fluid pressure if the downstream adapter and its associated sealing means is removed from the body while there is fluid pressure within the valve. The rings 68, 69 may each be replaced by a plurality of pins or an integral flange formed on the valve body. <IMAGE>
Patent GB-2037696-A (GB)
Title: Apparatus for inserting paper stacks into boxes
IPC: B65B25/14
Filed: 1979-10-18
Abstract: Apparatus for inserting paper stacks into boxes comprises a first holder for a paper stack. A controllable bottom releases the paper stack. A second holder for a box is arranged underneath the first holder and is associated with a feeder conveyor 107 for empty boxes and a delivery conveyor 108 for full boxes. The first holder is arranged above the second holder and the bottom of the first holder is formed by two supports 116a, 116b which support the paper stack 102 and which are mounted for translatory movement in one plane and which are associated with driving means 119a, 119b for synchronous movement in opposite directions. The supports comprise at their mutually facing ends guides 115a, 115b for the paper stack falling into the box. The guides extend in the direction of the second holder. Limiting means 125a, 125b are provided for moving the supports to a spacing of the guides corresponding to the stack width or the stack length. Also, the two holders can be moved towards each other so that the ends of the guides project into the box and align it upon opening the supports. <IMAGE>
Patent GB-2041082-A (GB)
Title: Device for regulating the temperature of air admitted to the suction manifold of an internal combustion engine
IPC: F02M31/06
Filed: 1980-01-22
Abstract: A pipe 14, 15 transmits the reduced pressure in the suction manifold 2 of an engine 3, downstream of the throttle 11, to a pneumatic serve-motor 10 which actuates a flap 7 regulating the respective flows of unheated air and of heated air admitted to the air filter 1. The pipe 14, 15 is equipped with a check valve 16 and an air bleed valve 17, the valve members 28, 29 of which are actuated by a single wax thermostat 18. The thermostat piston 22 engages a lever 30 which acts to unseat the valve members 28 and 29 at respective intake air temperatures. <IMAGE>
Patent GB-2043829-A (GB)
Title: Laminated Leaf Spring Bands
IPC: F16F1/26
Filed: 1980-01-31
Abstract: A method of fastening the leaves 11-16 of a leaf spring by cold fitting of a band 17, which is deformed during the fitting and kept in the deformed state. The deformation is brought about by insertion of a gib key 21, and driving of a taper key 22, into a gap between the main leaf 11 of the spring and adjacent wall surface of the band 17. The taper key 22 co- operates with the gib key 21 and is driven into the gap so as to deform the band 17 beyond its elastic limit. <IMAGE>
Patent GB-2056135-A (GB)
Title: Data Processing System Including a Cache Store
IPC: G06F12/123
Filed: 1978-11-24
Abstract: A data processing system includes a main memory system, a high speed buffer cache store, a central processor unit (CPU) and an Input/Output processor (IOP) all connected to a system bus. Apparatus in the cache store reads all information on the system bus into a first in, first out buffer comprising a plurality of registers, a write address counter, a read address counter and a means for selectively processing the information. The cache store is word oriented and further comprises a directory 202, a data buffer 201 and associated control logic. The CPU requests data words by sending a main memory address of the requested data word to the cache store. If the cache store does not have the requested information word, apparatus in the cache store requests the data word from the main memory system, and in addition, the apparatus requests additional data words from consecutively higher addresses. If the main memory system is busy, the cache store has apparatus to request fewer words. The cache store is organized in levels. Data from a particular portion of main memory is transferred to these levels on a first in- first out basis. Apparatus in the form of round robin logic circuitry, including memories 601, 602 and gates 613a-613d, makes the first in-first out level selection. Apparatus also exists for resetting the round robin count during the initialization procedure. Apparatus in the cache store monitors each communication between system units to determine if it is a communication from a system unit to the main memory system which will update a word location in main memory. If that word location is also stored in the cache store then the word location in the cache store will be updated in addition to the word location in main memory. <IMAGE>
Patent GB-2058967-A (GB)
Title: Safety devices for vehicle transmissions
IPC: F16H61/70
Filed: 1980-09-15
Abstract: A safety device for an electronic- hydraulically controlled range transmission for vehicles comprises a pressure switch 10 monitoring the hydraulic circuit of each clutch or brake and communicating with a comparator 5. The comparator 5 compares the information received with control pulses transmitted from an electronic control unit 1 to a hydraulic control unit 2, and if a fault is found switches off the supply. <IMAGE>
Patent GB-2059410-A (GB)
Title: Process for producing hydrated iron oxide
IPC: G11B5/706
Filed: 1980-10-02
Abstract: A hydrated iron oxide comprising goethite as a main component is produced by subjecting alkaline suspension comprising ferric hydroxide as a main component to an ageing treatment e.g. at 20-70 DEG C or a combination of a heat-treatment (e.g. at 70-100 DEG C) followed by an ageing treatment. Ferrous ions are incorporated in said alkaline suspension.
Patent GB-2063485-A (GB)
Title: Contactless Detection of the Distance of a Metal Surface from a Counter-surface
IPC: G01L9/10
Filed: 1980-11-14
Abstract: A spirally convoluted coil (10) is applied to a carrier (1) or substrate and lies opposite a central portion (8) of a metallic diaphragm of a pressure sensor. A square wave voltage (21) is supplied to the coil via a resistor and the resulting voltage peaks (U1) across the coil are rectified and filtered to provide an output voltage (Ua) whose magnitude depends upon the distance between the coil (10) and the diaphragm and thereby upon the pressure applied to the diaphragm. A further spiral coil may be applied to the other surface of carrier (1) where it faces an additional metallic diaphragm. <IMAGE>
Patent GB-2064991-A (GB)
Title: Conductive element and process for making the same
IPC: H05B3/34
Filed: 1980-12-10
Abstract: The invention relates to conductive elements and their preparation. The novel elements comprise a support (preferably a flexible polymeric film support) and randomly distributed fibres (e.g. glass fibres) which are partially embedded in the support. Solid electrically conductive particles are adherent to the protruding portions of the fibres, forming a conductive layer. Such elements are prepared by applying a dispersion of conductive particles (preferably an aqueous dispersion of carbon particles) to a substrate comprising a support and random fibres partially embedded in the support and partially protruding therefrom, followed by solidifying the dispersion. The elements are particularly useful as heaters.
Patent GB-2100862-A (GB)
Title: Comparator inspection apparatus
Inventor: ORCHARD NICHOLAS BARRINGTON
IPC: G01B5/20
Filed: 1981-06-20
Abstract: Apparatus for use with an assembly that comprises a first component 14 loosely located relevant to a second component 13, for inspecting a predetermined profile of a feature 12 of the second component 13. The apparatus comprises a template 16 having a profile corresponding to the predetermined profile of the feature 12 of the second component 13 to be inspected and a follower 27 following the template and an inspection probe 29 for tracing the predetermined profile. The template 16 is clamped on to the first component 14 and an adjusting means 31 is provided for urging the first component 14 and hence the template to a preferred predetermined position relative to the second component 13 thereby to align the template 16 relative to the profile of the feature 12 of the second component 13. <IMAGE>
Patent GB-2079753-A (GB)
Title: Conversion of acid anhydrides to alkylidene diesters
IPC: C07C69/78
Filed: 1981-07-21
Abstract: Carboxylic acid anhydrides are reacted with hydrogen to produce alkylidene diesters with high yield and with ratios of alkylidene diesters and coproduct carboxylic acid near the theoretical by carrying out the reaction in the presence of a cobalt carbonyl.
Patent GB-2081731-A (GB)
Title: Textile treatment
IPC: D06M13/165
Filed: 1981-08-03
Abstract: A process of imparting anti-static properties to textile materials, especially carpets, comprises treating the material with an aqueous solution of a quarternary ammonium salt and a water soluble polyether. Quarternary ammonium salts, containing three C8-C10 alkyl or aralkyl groups, normally insoluble in water, are soluble in the polyether; and compositions of quarternary ammonium salt and polyether may be diluted with water and applied to textile material to produce an anti- static finish.
Patent GB-2082097-A (GB)
Title: Alignment sensing apparatus
IPC: B23Q15/24
Filed: 1981-08-10
Abstract: The alignment sensing apparatus includes a first component 1 and a second component 2 for positioning on opposite sides of a work piece 3, the first component having a rotating magnetic field generator, and the second component having a sensing coil 11 which, when in the rotating magnetic field, develops a signal related to the degree of any misalignment of the axes of the first and second components. The signal is presented on an oscilloscope screen in the form of a ring which decreases in size as the misalignment is itself decreased. The apparatus may be used to align a tool with a specified hole position on a surface of a workpiece, e.g. aircraft body, remote from a surface accessible to the tool. <IMAGE>
Patent GB-2083851-A (GB)
Title: Siphonic unit for flushing cisterns
IPC: E03D1/06
Filed: 1981-09-04
Abstract: A plastics moulded siphon unit for a flushing cistern is manufactured in at least two parts (10, 40) which are coupled together releasably as at joint (42) so that the up leg part (10), with chamber (12), can be separated from the down leg part (40) to facilitate renewal of the piston diaphragm (16). The two parts (10, 40) are also connected together at a second position by abutments (60, 62) to prevent undue stressing of the joint (42) during operation of the piston (14) to initiate the syphonic flush. In modifications (a) the joint (42) is replaced by a telescopic joint in the down leg, and (b) the unit is in three parts incorporating a trombone- like telescopic U section. <IMAGE>
Patent GB-2116232-A (GB)
Title: Snow blower attachment for rotary lawn mowers
Inventor: BRENNAN BERNARD JOHN
IPC: E01H5/04
Filed: 1981-09-22
Abstract: Snow clearing apparatus is based on a grass cutting machine having a cutting blade rotating about a vertical axis within a housing. A snow inlet guide is attached at the front of the housing and a discharge duct is attached to the rear of the housing, which duct can be varied to throw the expelled snow to either side of the machine. An additional blade to the brass cutting blade is fitted, the additional blade having axially upturned portions at its radial extremities to give extra lift to the chopped snow and propel it more firmly to the rear. The inlet guide and discharge duct may be fitted to the grass cutting machine quickly and simply, and the second blade need not be removed for grass cutting operations. <IMAGE>
Patent GB-2090959-A (GB)
Title: Air Preheater
IPC: F23L15/04
Filed: 1982-01-06
Abstract: The delivery duct (2) of a blower (1) communicates with heat exchangers (10, 20, 30) located in series relationship within a stack conveying flue gases arriving e.g. from a boiler. Air is introduced into the blower from pivot and second ducts (40, 41), the second duct introducing ambient air preheated in an inner tube of heat exchanger (30). The amount of air entering the blower from the two ducts is controlled by distributing valve means (51) driven by a temperature sensor located in the coolest zone of the stack. The air passes through the heat exchangers (10, 20, 30) and exits through outlet duct (60) to the utilising apparatus. Further valve means (62) controls the amount of air passing to the outlet duct to be mixed with ambient air preheated in the inner tube of heat exchanger (30). <IMAGE>
Patent GB-2092520-A (GB)
Title: Continuous stationery
IPC: B42D5/02
Filed: 1982-02-08
Abstract: Continuous stationery has a fanfolded backing sheet 1 carrying letter heads 4 which are secured by adhesive 5 provided on a top marginal portion 6. The top portion is delimited from the main body of the letter head by a cut 7 which extends the full width but which only partially penetrates the sheet thickness. <IMAGE>
Patent GB-2095282-A (GB)
Title: A method and device for producing a gas containing essentially H2 and CO
IPC: C10J3/57
Filed: 1982-03-22
Abstract: A method of producing a gas containing essentially H2 and CO by reaction of fuels containing carbon and/or hydrocarbon with oxygen and/or gaseous gasification media containing oxygen, while in contact with molten iron, the gasification means being blown in a stream of gas from above into the molten iron while fuel is introduced into the molten iron from beneath the surface thereof. The invention also includes apparatus suitable for carrying out the method. <IMAGE>
Patent GB-2119324-A (GB)
Title: Foldable cycles
Inventor: SELLARS JOHN ARTHUR
IPC: B62K15/00
Filed: 1982-03-24
Abstract: Attached to the cycle frame a front wheel, a rear wheel, a saddle, handle bars and a pedal and chain drive; the frame has a main frame portion (13) which forms part of a case when folded and a rear frame portion (17) bearing a part (18) also forming part of a case when folded. The main and rear frame portions are pivotally connected about an axis parallel to and in the embodiment coincident with the pedal crank axis so that folding of the cycle forms a case which can conveniently be carried. <IMAGE>
Patent GB-2103532-A (GB)
Title: Ball and socket joints
Inventor: MUNNICH HERBERT
IPC: B29C70/84
Filed: 1982-07-01
Abstract: A method of producing a ball and socket joint consisting of a pin (1) with an integrally formed ball head (2), a housing (8) and a bearing layer (4, 5, 6) disposed between the ball head (2) and the housing (8) is described. The ball head (2) is coated with a lubricant (4, 5), then a lost casing (6) is applied over the lubricant (4, 5) and the ball head (2) is inserted into a mould or former (7) for the housing and the free space between the ball head and the former is filled with a material, e.g. a glass fibre reinforced polyester resin, which hardens to form the housing (8). In order to preserve freedom of movement of the ball head in a socket defined by the housing, where the ball head has a flat or polar surface (3) as a result of its production by machining, it is proposed to form a lubricant cushion (5) on the polar surface substituting for the missing ball cap and envelope this with the lost casing (6) before the housing is produced. <IMAGE>