baber/WOPTO huggingface dataset:
Patent GB-1423420-A (GB)
Title: Processing synthetic polymer waste
IPC: C10B53/00
Filed: 1973-08-16
Abstract: 1423420 Cracking; gas manufacture MITSUBISHI JUKOGYO KK 16 Aug 1973 38788/73 Heading C5E Useful components are recovered from synthetic polymer waste by heating it to yield gaseous components and a residue, using the residue as fuel for the heating, cooling the gaseous components to separate high-boiling materials that are returned to the heating step and then cooling further to recover a liquid product. As shown, the waste is crushed at 1 and fed to a primary decomposer 4, heated by waste heat from the secondary furnace 5, the waste being moved by a screw conveyer at such a speed that it melts while still in the primary decomposer, and then passes to the secondary furnace 5 which contains a constant-level bath of molten polymer heated by the fire-tubes 6. Gaseous products are cooled at 7 and the less volatile components returned to the bath by way of tray 8. Heavy residues from the bath are drawn off at 9 and filtered at 11. The fitrate is returned to the bath by ports 13, and the solids, mostly carbon, are led to furnace 14 which supplies the hot blast for the tubes 6. The gas from 7 passes through cyclone 17 to cooler 18, which may be a Venturi scrubber, from which an oil-water mixture goes to separator 19. The water is recycled by pump 20 and the oil collected at 21. Uncondensed gases are further scrubbed at 22 and 23 to free them of HCl, the recovered liquids being separated at 26, hydrochloric acid being collected at 27 and oil at 21. The remaining gas is neutralized at 28 and passes to gasholder 29, from which it may be fed as fuel to the furnace 14.
Patent GB-1172946-A (GB)
Title: Code Converter
Inventor: NEWELL ALAN FRANCIS
IPC: H03M7/40
Filed: 1968-08-15
Abstract: 1,172,946. Code converters. STANDARD TELEPHONES & CABLES Ltd. 15 Aug., 1968. No. 39007/68. Headings G4H and G4R. A code converter adapted to produce a fixed length parallel binary code output in response to a variable length input code group, comprises a binary shift register 3 and a binary counter 4, the successive bits being shifted in the shift register and counted by the counter, the last member of the group, which indicates the end of the group, being used to enable decoding gates 50 and also to reset the shift register and counter. The input may be from a microphone E, receiving spoken code elements similar to Morse, the short element being represented by the word " di " and the long element by the word " dar." The short intervals between elements are used to shift the elements with the register and to advance the counter. The longer interval indicating the end of the group is used to reset the shiftregister and counter and enable gates 50. The microphone is connected via an automatic gain-control amplifier and a band-pass filter to an envelope detector 11 which feeds a threshold circuit 12. The output of the circuit 12 is applied to an integrating bi-stable 13 which sets when the input signal lasts for longer than a predetermined time. An output from circuit 12 therefore gives an output on terminal B if it is a long code element and, via inverter 16, on terminal A if it is a short element. These signals are used to set or reset the shift register stages. The absence of a signal from circuit 12, via inverter 14, gives a " silent " signal on terminal C. This is used to step the register 3 and counter 4. A pause, i.e. the interval between letter groups gives a reset and read-out signal on terminal D as well as terminal C. The outputs from the register and counter are combined in gates 50 to give a parallel coded representation of the input signal. One of these gates responds to a special code to set trigger 58 and open gate 57 thereby enabling the circuit to operate. Instead of the circuit 1, a modification can be used in which the output of the envelope dector is applied with the original signal to a differential amplifier. The output of the amplifier is applied to a threshold circuit and thence via an inverter to an integrating bi-stable. The desired signals are derived from the output of the bi-stable. In another form (Figs. 3a, 3b, not shown), the circuit is designed to distinguish between three classes of sound (rather than two); frictive, voiced sound and silence.
Patent GB-1194379-A (GB)
Title: Apparatus for Controlling an Electric Motor
Inventor: THOMAS ALAN JOHN
IPC: H02P7/288
Filed: 1967-08-24
Abstract: 1,194,379. Welding by fusion. ROLLS-ROYCE Ltd. 24 Aug., 1967, No. 39072/67. Heading B3R. [Also in Division H2] A circular weld W on a workpiece 3, e.g. a rotor disc for a gas turbine, is produced by a stationary electron beam device 1, the workpiece being rotated by an electric motor 4. The weld starts when light to a photo-cell 13 is first interrupted by a projection 10 and finishes at the second interruption. A circuit 15 may include unspecified means for modifying the rate of growth and decay of the welding beam to avoid end effects at start and finish. The speed of the motor is set by two controls, for radius and desired linear welding speed respectively. (See Division H2).
Patent GB-1447064-A (GB)
Title: Pipeline pig
IPC: B08B9/055
Filed: 1973-08-15
Abstract: 1447064 Pipeline pigs C C KNAPP Jnr and K M KNAPP 15 Aug 1973 [24 Nov 1972] 39545/73 Heading F2N A pipeline pig has a resilient body formed with fins for engaging the pipeline wall and with a passage extending from the rear of the pig towards the front, so that pressure fluid behind the pig acts not only on the rear of the pig but also at the front of the passage, the component of force at the front of the passage acting to draw (rather than push) the pig through the pipeline. As shown in Fig. 1, the passage 16 is closed by plates 30, each having a valve controlled aperture. The pig is bi-directional and in use, pressure fluid enters passage 16 through the trailing valve, closes the leading valve and acts on the leading plate. Apertures 48, 50 deliver pressure fluid to the gaps between adjacent fins. The peripheral walls of end caps 18, 20 are formed with spiral grooves 24. In the Fig. 5 embodiment, cheek valve ball 78 is moved in passage 76 by the pressure fluid to open and close the trailing and leading apertures 80, 82 respectively. Instead of ball 78 a cylindrical member with frusto-conical ends may be provided, Fig. 6 (not shown). In a final modification, Fig. 4 (not shown), the passage is permanently open at one end and permanently closed either at the other end or at some intermediate point, e.g. midway along its length.
Patent GB-1458369-A (GB)
Title: Disperse monoazo dyestuffs
IPC: C09B29/06
Filed: 1973-08-22
Abstract: 1458369 Dispserse benzene-azo-naphthalene dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 24 July 1974 [22 Aug 1973] 39774/73 Heading C4P Novel dyestuffs of the formula (wherein X is Cl or Br; n is an integer from 2 to 8; Y is -CO-, -O.CO-, -O.CO.O-, -NH.CO-, -NH.CO.O-, -NH.CON.H- or -NH.SO 2 -; and Z is alkyl optionally substituted by Cl, Br, CN, phenyl, phenoxy or alkoxy, or is optionally substituted aryl or heterocyclyl) are prepared by conventional diazotization and coupling. They are used for dyeing and printing synthetic textile materials, e.g. cellulose acetates, polyamides and polyesters, in blue shades.
Patent GB-1243613-A (GB)
Title: Improvements in or relating to machines for internally sealing pipe joints or flaws
Inventor: GRACE JOHN COLIN
IPC: B08B9/045
Filed: 1969-08-08
Abstract: 1243613 Repairing pipes TATE PIPE LINING PROCESSES Ltd 22 July 1970 [8 Aug 1969] 39808/69 Headings F2N N1A1 N1A3 N1A5 and N1A6C A machine for internally sealing pipe joints or flaws comprises a prime mover 16 for rotating an air-operated sealant applicator 76 and operating a pump 63 delivering sealant from a container 17 to the applicator, all the parts containing a passage for the air supply to the applicator. The machine is moved along a pipe until an electro-magnetic detector 11, comprising two coil-surrounded metal cores 32 connected to a supply voltage and an indicator and supported by a skid 21, locates a flow or joint; the machine is then moved along the pipe until the joint is level with an air blower 13, driven by an electric motor 37 and supplied with compressed air via a pipe 22, the air being emitted through a slot, circumferential and inclined to the radial plane, and a rotary cleaning device 14, comprising two radial arms 46 with spring-loaded wire brushes 47 or metal strips with abrasive pads and counterweights affixed. After the joint has been cleaned, primer from a tank 12 is injected into the blower air supply, via a control switch 44, and sprayed on to the joint. The machine is moved further along the pipe to align the sealant applicator 76 with the joint, where a clock or timer operates an air supply to activate a locking pin, to hold the machine in position, a piston in the sealant container 17, to surcharge the pump 63 with sealant, and a piston which acts on a pivoted arm 77 to extend the applicator 76 against a spring 78A; after a period, the timer switches in another clock or timer which maintains the air pressure and switches on the electricity supply to the prime mover 16 which rotates the pump 63 and the applicator via a shaft through the sealant container 17. After a period, the second timer switches in a third clock or timer which cuts off the air supply so that the applicator is gradually retracted whilst rotating, and then the electricity supply is cut off. The air-operated piston acting on the applicator is held in an end cap which rotates with the applicator; the sealant supply to the applicator is via flexible hoses 75. The machine movement in the pipe is aided by skids 21 and/or sets of rollers 20.
Patent GB-1528097-A (GB)
Title: Banding strap
IPC: F16L3/233
Filed: 1976-09-24
Abstract: 1528097 Band strap TOSKA CO Ltd and SATO GOSEI CO Ltd 24 Sept 1976 39875/76 Heading E2B A band strap comprises a head portion 1 from the side of which a strap 2 extends in a aperture formed in the head portion a tongue 3 is provided and a slit 4 is also formed in the head portion. On one side face of the strap 2 teeth 5 are formed and a filament portion 6 is provided to facilitate threading through the slit 4. On the wall of the aperture projections 8, 8' are provided which engage with projecting strips 9, 9' on the strap when the strap is in the aperture (Fig. 7). In use the engagement of projections 8, 8', and 9 and 9' prevent the head portion from distorting and serves to keep the teeth 11 on the tongue 3 fairly engaged with the teeth 5 on the strap when the strap is tightened by pulling around an object.
Patent GB-1483532-A (GB)
Title: Stator structure for a gas turbine engine
IPC: F01D11/00
Filed: 1974-09-13
Abstract: 1483532 Turbine stators ROLLS-ROYCE (1971) Ltd 26 Aug 1975 [13 Sept 1974] 39958/74 Heading FIT Sealing between adjacent segments 20 of inner and or outer shroud rings of gas turbine nozzle guide vanes (16), Fig. 1 (not shown), is effected by sealing members, e.g. strips 29, engaging in grooves 27, 28 at adjacent edges of the segments and defined between the edges of the shroud segments and covering plates 25 perforated at 26 for impingement cooling at the shroud rings. The perforations may extend to the plate edge for cooling of the seals. The edges of the plate may be ripped down to grip the sealing strip 29. The plate 25 is brazed or welded to ribs 23, or upstanding pins on the segment 20.
Patent GB-1118637-A (GB)
Title: Improvements in or relating to blind-riveting tools
IPC: B21J15/04
Filed: 1965-09-20
Abstract: 1,118,637. Blind riveting. GEORGE TUCKER EYELET CO. Ltd. 20 Sept., 1965 [21 Sept., 1964], No. 39960/65. Heading B3U. A chuck assembly for a blind-riveting tool comprises a hollow jaw housing formed internally with a frusto-conical surface, two jaws accommodated within the housing and each having a mandrel engaging portion and a tapered outer surface which engages with the frustoconical surface of the housing, and a plunger arranged yieldingly to urge the jaws towards the narrower end of the frusto-conical surface of the jaw housing, the tapered outer surface of each jaw have two part-conical portions separated by an intermediate relatively flatter part running lengthwise of the jaw, so that for any given axial disposition of the jaws in the housing, there are two lengthwise lines of contact between the internal frusto-conical surface of the jaw housing and the outer surface of each jaw. The pairs of jaws 38 are urged downwards, to close on and grip the mandrel M of a rivet R, by a spring 42 and a plunger 40. A tool using the chuck, Fig. 1 (not shown) comprises a pair of handles (26), (31) mutually pivoted on a pin 28 and which can be closed to raise a slide 22 and the jaw housing 20, which are linked to the handle (26), relative to an anvil member 82, which is mounted at one end of a housing (34) the other end of which is fixed to the handle 31. In use the handles (26, 31) are moved apart, causing the chuck assembly to move downwards until a conical surface (78), Fig. 4 (not shown) on the jaws 38 contacts a conical surface (not shown) on the anvil 82 which forces the jaws apart enabling the mandrel M to be inserted. The handles are then brought together raising the slide 22 and jaw housing 20 to close the jaws 38, these being pushed down the taper by the plunger 40 which has a pair of plane faces 48 coacting with plane faces 46 on the jaws to ensure that the jaws close evenly. When the mandrel has been gripped by the jaws it is pulled upwards, the body of the rivet R being restrained by the anvil 82 until the rivet is set and the mandrel broken. The mandrel gripping part of the jaws is a serrated groove 44, Fig. 6. The conical surface of each jaw is formed in two parts 50, 52 separated by a flat 54. Each of the parts 50, 52 has a centre of curvature 74, slightly spaced from the centre of the mandrel so that line contact only exists between the jaws and the taper in the jaw housing.
Patent GB-837401-A (GB)
Title: Process for the catalytic desulphurization of hydrocarbon oils
IPC: C10G49/22
Filed: 1958-12-11
Abstract: A process for the catalytic desulphurization of hydrocarbon oils comprises desulphurizing the oil with a hydrogen-containing gas at elevated temperature and 10 to 100 atmospheres; cooling the reaction mixture and passing it through a high-pressure separation zone to obtain a hydrogen-containing gas which is recycled to the desulphurization zone and a liquid fraction; passing the liquid fraction to a lower pressure (intermediate) separation zone from which at least part of the gas separated therein is also recycled; and then passing the remainder of the liquid fraction to a still lower pressure separation zone.  The desulphurization may be effected at 300 DEG  to 500 DEG  C., preferably 325 DEG  to 400 DEG  C.; 10 to 100, preferably 35 to 70 atmospheres; 41/1Hr.; and an excess of at least 50, preferably 100 to 200 standard litres of hydrogen/Kg. of feed.  The trickle technique is preferred.  Suitable catalysts comprise nickel and/or cobalt as well as molybdenum and/or tungsten, as metals and/or compounds with each other and/or oxygen and/or sulphur on a carrier wholly or partly consisting of alumina.  The hydrofined oil is preferably cooled to about 40 DEG  C. before transfer to the high-pressure separation zone where the pressure is slightly below the reaction pressure, e.g. 30 to 65 Kg./sq. in., no deliberate pressure reduction being effected.  The pressure in the intermediate pressure separation zone is usually 15 to 30, preferably 20 to 25 Kg./sq. cm. and is preferably approximately equal to that of the make-up gas supply enabling a single compression to be used to compress the recycle and make-up gases together.  The pressure in the lowest pressure separation zone should be as low as possible to permit maximum gas removal but is preferably not lower than 7 to 3 Kg./sq. cm. at which pressure H2S removal (with ethanolamine) and use as fuel gas is effected.  The preferred pressure is 4 to 6 Kg./sq. cm.  The residual pressure should also be sufficient to effect transfer of the desulphurized oil to a distillation column operated at 1 to 1.5 Kg./sq. cm.  The process is particularly applicable to whole crude oil light fractions having a final boilingpoint between 300 DEG  and 400 DEG  C.  An example demonstrates the relative efficiency of a process using the three separators and of similar processes wherein either the intermediate or the low-pressure separator is by-passed. Specifications 602,097, 669,536 and 710,342 are referred to.
Patent GB-1008533-A (GB)
Title: Mixer for building materials
IPC: B01F13/00
Filed: 1961-11-09
Abstract: 1,008,533. Concrete mixers. ARBAU BAUGERATE G.m.b.H. Nov. 9, 1961 [Nov. 9, 1960], No. 40214 / 61. Heading B1C. A concrete mixer has a drum formed in two axially separable parts 1, 2 of which the lower part 1 is rotatable by a motor 12 through a reduction gear 14. There is a stirrer 3 which is rotatable relatively to the lower part 1 of the mixing container but not relatively to the upper part 2. The whole is carried on an arm 9 and is pivotable about the horizontal shaft 10 into an elevated position. In the filling and mixing position shown in full lines, the two parts of the container are separated to present an annular filling aperture and the upper part 2 and stirrer 3 are held stationary while the lower part 1 rotates. The container is then closed to the position 2b and raised to . the elevated position ; in the closed position the upper part and the stirrer are clutched by dogs to the lower part (see Fig. 4, not shown), so that they rotate as a unit and mixing proceeds in the elevated position by tumbler action. Finally the mixer is discharged by moving the upper part to the position 2a, providing a discharging aperture formed by a wider separation of the container components than for filling.  The motor 12 may also drive a hydraulic pump for actuating hydraulic means to open and close the container and elevate it. There are transport wheels (see Figs. 2 and 3, not shown) which are retractable into the body by means of an hydraulic ram. There may be a weighing device 15.
Patent GB-1474228-A (GB)
Title: Warp knitted sack
IPC: G09F3/02
Filed: 1974-09-17
Abstract: 1474228 Woven bags J F ADOLFF AG [26 Sept 1963] 40391/74 Heading B8K [Also in Division D1] A sack is warp knitted complete as a two-ply fabric joined at three sides and the fabric consists of knitted warps 22 with laid in wefts 24 at least two tapes 26 being laid in between pairs of knitted warps and being no wider than the space therebetween, the tapes each being held by at least one weft and a label being attached to the tapes by adhesive or welding. The knitted warps and laid in wefts may be foil strips. The tapes and label may be thermoplastic foil.
Patent GB-1319838-A (GB)
Title: Frame work for use in constructing a structural element from concrete
IPC: E04C5/06
Filed: 1970-08-25
Abstract: 1319838 Reinforcement lattice for cast concrete AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 25 Aug 1970 [12 May 1970] 40873/70 Heading E1W [Also in Division D1] A reinforcement framework for use in the concrete construction of partitions, posts, floors, roofs, beams, staircases, bannisters and bridges is formed by the interengagement of two types of elements. The first element 1 comprises a series of straight parallel bars 2 each welded to one of the ridges of each of a series of corrugated rods 3. The second element 20 comprises a ladder like arrangement of parallel rods and interconnected cross pieces which engage and are supported by the straight bars of the first element in a plane substantially perpendicular to the planes containing the corrugations of the first element. The parallel rods of the second element may be straight or curved. The cross pieces of the second element may extend beyond the parallel rods and one of these extensions may be bent round each of the corrugation apices, alternatively the second element may be wedged between the straight bars of the first element. In this latter case the extensions may be bent to form hooks 23. Wire mesh 25 may be secured to the extensions and coated with cement or plaster which when hardened serves as permanent shuttering for concrete cast between two such meshes or onto one of same. Window openings may be formed in the mesh prior to casting.
Patent GB-1047688-A (GB)
Title: Improvements in or relating to coupled parametron bridge circuits
IPC: H03K3/47
Filed: 1963-10-16
Abstract: 1,047,688. Parametrically excited resonators. H. MAEDA. Oct. 16, 1963 [Oct. 17, 1962], No. 40905/63. Heading H3B. Output leads of a plurality of bridge-type parametrons of a first stage are connected to a single common input lead magnetically coupled to one bridge-type parametron of a second succeeding stage. Three parametrons B1, B2, B3 each comprising an electrically balanced bridge formed by a non-magnetic wire coated with a ferromagnetic material and tuning capacitor C1, C2, C3 are provided with input lines 1, 1a 2, 2a, and 3, 3a which are connected to the two ends O, Oa of the common input line P magnetically coupled to parametron B1a of the succeeding stage. By using only one input lead P the input voltages induced by the respective equal currents in the lines 1, 2, 3 are equal since there is only one coefficient of mutual inductance between the input line P and the parametron B1a. Resistors R, Ra prevent the mixing of inputs from each input line into another input line. In Fig. 5 a plurality of parametrons are differentially connected to a plurality of parametrons of a succeeding stage.
Patent GB-1007840-A (GB)
Title: Method of sizing paper
IPC: D21H17/60
Filed: 1961-11-15
Abstract: A method of sizing paper comprises preparing an aqueous solution of a sizing agent by dispersing electrically neutral particles of a sizing agent in an aqueous medium by means of a cationic dispersion agent to import a positive charge to the particles and introducing the dispersion into a stream of paper pulp at such a position that the pulp is not subjected to further mechanical treatment before it emerges on the wire of the paper machine to form a sheet.  Suitable sizing agents are petroleum wax, synthetic wax, resin, plastics and petroleum resins and suitable dispersion agents are salts of primary amines of which the lipoid part (alkyl chain) contains 10-40 carbon atoms; heptadecylamine acetate may also be used.  The dispersion is preferably added continuously by a dosing pump feeding into the pulp conduit leading into the inlet bore of the paper machine. Dyes, insecticides, ultraviolet filters or disinfectants may by added to the dispersion.  An example is given in which paper is sized with a cationic wax dispersion and heptadecylamine acetate is used as dispersion agent.