baber/WOPTO huggingface dataset:
Patent GB-1309051-A (GB)
Title: Acrylic fibres having excellent pilling resistance and a process for producing the same
IPC: D06M13/232
Filed: 1971-05-24
Abstract: 1309051 Acrylic filaments and fibres MITSUBISHI RAYON CO Ltd 24 May 1971 [27 May 1970 5 June 1970 8 June 1970 12 June 1970] 16717/71 Heading B5B Acrylic fibres having at least 3 wedge-shaped surface depressions per inch, the elongated axis of the depressions lying along the filament axis, are made by first treating the fibres with a modifying agent which renders the fibre surface insoluble in DMF at 100 C., and then treating them with an organic compound which is a solvent only for the interior, unmodified portion of the fibres. The modifying agent may be KOH, NaOH, H 2 SO 4  or a hydroxylamine salt (e.g. sulphate or phosphate). Glycerine may be added to this agent, and the fibres may also be treated with, e.g., acetic or oxalic acid before the next step. The organic compound may be DMF, ethylene carbonate, dimethyl acetamide, acetonitrile or DMS or a mixture or aqueous solution thereof. In this step, treatment may be effected by simple immersion, optionally followed by a squeezing and heating step, or vapour of the organic compound may be used. The depressions may be 0À5-20 Á long and 0À2-10Á deep. The modified surface layer may constitute 0À5-40% of the fibre. In examples acrylonitrile containing a small quantity of vinyl acetate or methyl methacrylate as comonomer is treated. The fibres have a soft hand and show strong resistance to pilling.
Patent GB-1481939-A (GB)
Title: Magnetic head assembly
IPC: G11B5/265
Filed: 1976-04-26
Abstract: 1481939 Magnetic playback heads INTERNATIONAL BUSINESS MACHINES CORP 26 April 1976 [2 June 1975] 16804/76 Heading G5R Spaced in a gap between opposed planar surfaces of two highly permeable relatively thick magnetic members 12, 14 are two relatively thin magnetic shield layers 16, 18 and a magnetoresistive element 10 between them. One or both of the magnetic members 12, 14 may be incorporated in an inductive recording head, Figs. 2 and 3, (not shown).
Patent GB-811868-A (GB)
Title: Improvements relating to the treatment of petroleum hydrocarbons with oxygen
Filed: 1956-05-31
Abstract: Crude oils or fractions, at least part of which boils within the kerosine and/or gas oil range, are improved by treating the oil in the liquid phase with at least one volume (at N.T.P.) of gaseous oxygen per volume of liquid, under conditions sufficient to maintain the oxygen in solution in the liquid phase, and distilling the oil to obtain a straight run kerosine and/or gas oil distillate of improved colour and deposit stability.  The expression gaseous oxygen includes air.  The treatment is preferably conducted under increased pressure to increase the solubility of the oxygen in the oil.  Preferably the contact time is not less than 3 minutes.  The treatment may be carried out prior to distillation or during distillation by removing a side stream, treating it and then recycling it to <PICT:0811868/III/1> a lower point in the column or passing it to a further column.  In an example fractionating column 1 is supplied with crude oil by line 2.  A gas oil and kerosine fraction is removed as a side stream by line 7 and passed by pump 8 to coil 10, the outlet pressure of which is controlled by valve 11.  Oxygen is injected into the stream through pipe 9.  The fraction is then passed to redistillation column 14 via line 12 either by recycling through column 1 or via by-pass 21.  According to the Provisional Specification the gaseous oxygen may be mixed with any inert gas.
Patent GB-738532-A (GB)
Title: Improvements relating to change-speed driving arrangements
IPC: F16H3/089
Filed: 1953-06-18
Abstract: 738,532. Momentum power-storing apparatus. DAIMLER-BENZ AKT.-GES. June 18, 1953 [June 20, 1952], No. 16858/53. Class 10. [Also in Group XXIV] In a constant-mesh change-speed gear comprising flywheels m1, m2 for reducing binding in friction clutches k1, k2 selectively engaged to change the ratio, the flywheels, which rotate with driving and driven shafts al, a2, are located outside the gearing and separately from the clutch means but are each in driving connection with a driving or driven part of each clutch. As shown, the flywheel ml is in driving connection through a gear g with a countershaft v carrying the common part of a double clutch k1, k2 and the flywheel m2 is in driving connection through gears g1, g2 with the other two parts of the double clutch. In one modification, Fig. 2 (not shown), the flywheel ml is part of a casing, surrounding and rotatable with respect to the flywheel m2, mounted forwardly of the gearing. In another similar modification, Fig. 3 (also not shown), the change-speed gearing contains two separate clutches, one on the layshaft and one on the driven shaft. The flywheels may be associated with the parts of a fluid coupling or torque converter.
Patent GB-466925-A (GB)
Title: Improvements in and relating to magnetic testing devices
IPC: G01N27/83
Filed: 1936-06-17
Abstract: 466,925. Magnetic tests. BRITISH THOMSON-HOUSTON CO., Ltd. June 17, 1936, No. 16875. Convention date, June 20, 1935. [Class 37] Tests for flaws in magnetic material are effected by two saturated magnetic cores 14, 15 in proximity to the material, the outer legs of each core being energized in opposite directions by windings 22 ... 25 fed from an A.C. source 26, the response to a flaw being obtained by an unsymmetric joint action of a magnetic field around the material and the field of the cores. Continuous-current is passed through a rail under test by source 12 through brushes 13. Normally the fluxes due to the main current in the centre legs 16, 17 of cores 14, 15, at fundamental frequency and odd harmonics are opposed, but the components due to even harmonics at saturation are additive and induce voltages in the secondary windings 27, 28. These, voltages are opposed and cancel in the absence of a flaw and are applied to an amplifier 29 which may be tuned to the second harmonic frequency. The output of the amplifier may be connected to a faulty recorder 30 or point gun marker 31.
Patent GB-633654-A (GB)
Title: Improvements in pipe joints and couplings
IPC: F16L27/08
Filed: 1947-06-27
Abstract: 633,654. Pipe joints. BRAITHWAITE & CO. ENGINEERS, Ltd., CLEMMITT, T. L., .and TWEED, R. J. C. June 27, 1947, No. 17007. [Class 99(i)] A swivelling pipe-joint comprises a ring 6 engaging behind a flange 3 formed or mounted on a pipe 1, an end face 14 of the ring forming a continuation of a face 4 on the. flange and both faces seating against a washer 9, and a ring 12 being provided bridging a gap 15 between the faces. As shown, the ring 12 leaves part of the washer free so as to be subject to the pressure of fluid passing through the pipe. The face 4 is inclined at an angle of 60 degrees and an outer face 5 is inclined at an angle of 45 degrees and forms a secondary seal with a corresponding surface on the ring 6. When used for coupling two pipes, a distance piece 8 is provided between the washers 9.
Patent GB-709222-A (GB)
Title: Improvements in and relating to ram jet propulsion engines
IPC: F02K7/06
Filed: 1951-07-18
Abstract: 709,222. Jet propulsion plant. ENGINEERING CORPORATION, Ltd. July 18, 1951 [July 20, 1950]. No. 17024/51. Class 110(3) [Also in Group XII] In an intermittently-working ram-jet propulsion engine having a combustion chamber 2, the air inlet valve 3 is opened by aerodynamic pressure and is closed by combustion pressure, the outlet or discharge valve 6 being controlled on the air inlet valve by a member such as spring 17, and the discharge valve 6 is closed during combustion so that combustion occurs at constant volume. In Fig. 1 the inlet valve 3 slides on a piston 14 and is separated therefrom by the spring 17, the piston being secured on the hollow spindle 16 which slides in a guide 15 and carries at its other end the discharge valve 6. The valve 3 is opened by aerodynamic pressure and the valve 6 follows up the movement to close the discharge opening. Fuel is injected througli the injector 4 and combustion started by igniter 5, the resulting increase in pressure closing the valve 3. The valve 6 follows up the movement and allows the gases to pass to the nozzle 10. Air passing through the spindle 16 cools the spindle and valve 6 and provides a supplementary mass of air. The embodiment of Fig. 2 is similar to that of Fig. 1 except that the area of the rear surface 14 of the piston 14 is less than that of the forward surface 6' of the valve 6. When combustion occurs the inlet valve 3 slides forward on the piston 14 and closes the air inlet and at the same time allows the full combustion pressure to act on the rearward-facing surface 21 of the piston 14. As the area of the surface 21 is greater than that of the surface 6'. the discharge valve is caused to open suddenly. The engine may comprise a plurality of combustion chambers arranged in diametrically-opposed pairs.
Patent GB-665224-A (GB)
Title: Transmission gear
IPC: F16G5/16
Filed: 1949-06-27
Abstract: 665,224. Driving belts. FEUERUNGSBAU AKT.-GES. June 27, 1949 [June 26, 1948], No. 17033/49. Class 80 (i). A driving belt for expanding pulleys comprises a fabric band 2 (preferably of nylon) having riveted or bolted thereto pairs of transverse bars 3, 4 composed of fibrous material impregnated with a solid resinous material. The ends of the bars are inclined so as to contact the pulley faces over a zone adjacent to the band 2. The contact zone may be entirely on the ends of the bars 3 or of the bars 4, provided that the faces of both sets of bars have a length equal at least to the band width. The lateral strength of the bars allows the use of wide belts and small pulleys, the angle a which the normal to the pulley face makes with the pulley axis being greater than the angle of friction to prevent jamming. Longitudinal sections of various belt forms are shown. In Fig. 1 the bars 3 are rectangular and contiguous, the bars 4 being trapezoidal; in Fig. 4 (not shown) the bars are respectively rectangular and trapezoidal but are spaced apart along the band 2; in Fig. 3 (not shown) the bars 3 are rectangular and contiguous, the bars 4 being also rectangular but smaller than the bars 3 and spaced along the band. In Fig. 6 the faces 10, 11 of the bars are cylindrically curved. In Fig. 7 (not shown) the bars 3 are rectangular and spaced apart, the bars 4 being replaced by thin metal bars. In Fig. 8 (not shown) the bars 3, 4 are each of trapezoidal section to allow flexing of the belt in two directions.
Patent GB-530872-A (GB)
Title: Improvements in or relating to pipe lines
IPC: F16L51/00
Filed: 1939-06-10
Abstract: 530,872. Pipe lines; joints. SEIFFERT & CO., AKT.-GES. F. June 10, 1939, No. 17083. Convention date, June 10, 1938. [Class 99 (i)] In a pipe line provision is made at an elbow, valve, expansion joint &c. for equalizing forces due to heat expansion or pressure of fluid in the line. In an elbow connection of the pipe 28, Fig. 4 to a container 29 the force acting in the direction 45 due to line pressure at the elbow is equalized by connecting the line by a pipe 34 to a cylinder 30, the piston 31 being connected to a clamp 33 on the pipe. Bending stresses are eliminated by a device comprising a weight 35 secured to the bracket 33 engaging a slotted bell crank lever 39 pivoted at 40 to the bracket 43. In a device for an expansion loop 13, Fig. 3, stresses due to heat expansion are eliminated by pivoted weights 16 having rack and pinion connection with the pipes 11, 12 and stresses due to pipe line pressure are eliminated by line pressure acting on pistons 22. In the construction shown in Fig. 5 the pressure of the fluid in the pipe line is transmitted through ports 54 to an annular piston 53. Other applications of an annular piston are also described. Modified constructions are described in which the movement of a hollow plunger or a bellows is transmitted through a chain or other linkage. Specification 339,828, [Class 99 (i)], is referred to.
Patent GB-585059-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/42
Filed: 1944-09-08
Abstract: 585,059. Sliding-clasp fasteners. ZIPP FASTENER CO., Ltd., and FRUNGEL, H. R. Sept. 8, 1944, No. 17174. [Class 44] Fastener elements, metallic or non-metallic, of a sliding-clasp fastener are pre-treated with a varnish or lacquer which can be dyed. The elements are then mounted on the stringer tape and the elements, together with the whole or marginal portions of the tape, are then dyed together to ensure colour matching. The 'varnish or lacquer, and the tape, are initially of such colour that they can be effectively dyed together. Preferably, the lacquer or varnish is of indifferent or neutral colour such as grey, or is colourless, whilst the tape may be grey, or unbleached textile colour, or white. The end stop members, or the slider, or both, may be similarly varnished or lacquered, and dyed, or may be directly colour-lacquered in the usual way. Suitable lacquers and varnishes having a cellulose or synthetic resin base are stated to be well-known.
Patent GB-561856-A (GB)
Title: Improvements in or relating to the detection of faults in parts of magnetic material
IPC: G01N27/84
Filed: 1942-12-03
Abstract: 561,856. Detecting faults in parts of ferrous material. ARMOUR, A. M., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 3, 1942, No. 17231. [Class 98 (i)] [Also in Group XXXVI] Faults, such as cracks and cavities, in parts of ferrous material, and particularly in welded joints, are recorded by making a superposed radiograph and " magnetograph in respect of the same surface area of the specimen on one and the same translucent backing film or plate. The magnetograph is produced by applying a liquid containing finely-powdered magnetic material to the backing, which is placed on the area to be tested while the specimen is magnetized. The powder indicates cracks and fissures adjacent the surface by bunching round them, whilst the radiograph indicates more deeply-seated defects. The radiograph may be first made, a flat lead tally being placed to one side of the area to be examined. After development, the film or plate is replaced on the specimen in the same position by registering the image of the tally with the tally itself, the specimen is magnetized and the liquid containing the magnetic powder applied to the film or plate. Methylated spirit containing iron dust may be used, the spirit softening the gelatine film so that the. iron dust is embedded in it when the spirit has evaporated.
Patent GB-421188-A (GB)
Title: Improved fire preventive attachments to picture film projection apparatus
IPC: G03B21/18
Filed: 1933-06-16
Abstract: 421,188. Kinematograph projectors. GARRETT, E. H., and GARRETT, E. R. W., 6, Telford Terrace, Oriental Bay, Wellington, New Zealand. June 16, 1933, No. 17255. [Class 97 (i)] A film-severing device is provided upon or about the exit from a film magazine, and is moved by a spring to sever the film and close the exit when released by a spring-controlled trigger normally held by a fuse arranged in close proximity to the gate; the apparatus may be constructed so that the magazine door is automatically locked, and the film may not be fed, until the fuse has been replaced. Fig. 9 is a plan, and Figs. 11, 12 sections, respectively on the lines 11-11, 12-12, of a construction of attachment for the magazine. A celluloid strip held at one end is connected at the other end to a rod 30 and is tensioned by a spring 32. surrounding the rod and bearing against a stop 33 thereon. The stop 33 engages a frame 25 and normally holds it against the pull of a spring 27. The frame has a slot 26 extending from one side and normally registering with the film slot 21 of the magazine, and a fixed knife blade 24 extends along one edge of the slot 26 at a slight angle. Burning of the fuse permits the spring 32 to raise the stop 33, and to free the frame 25 so that it severs the film on the knife blade and closes the film exit. The frame 25 is re-set by a knob 39 on a rod 34 which is bent so that its end 35 engages a block 37 on the frame when the film exit is closed. If the knob be pulled, the frame is re-set, and may be held so by rotation of the knob to engage stepped surfaces respectively on it and on a guide 36. The end 35 then extends across the film exit and prevents film threading until a new fuse has been fixed; rotation of the knob then permits a spring 38 to move the rod free of the slot. When the film exit is closed, a bolt 42 on the magazine door is engaged by a spring finger 44 to prevent opening of the door.
Patent GB-1085489-A (GB)
Title: Process for the manufacture of 2,2,3,3-tetrachlorobutane
IPC: C07C17/10
Filed: 1966-04-20
Abstract: 2,2,3,3-Tetrachlorobutane is made by reacting liquid 2,2,3-trichlorobutane with chlorine in the presence of U.V. light. It is preferred to introduce chlorine into the liquid trichlorobutane at - 13 DEG  to + 143 DEG  C. until the tetrachlorobutane crystals cease to precipitate and HCl is no longer liberated.
Patent GB-561125-A (GB)
Title: Improvements relating to ratchet spanners
IPC: B25B13/46
Filed: 1942-12-04
Abstract: 561,125. Wrenches. GASCOIGNE, G. H., and KNOX, J. R. Dec. 4, 1942, No. 17279. [Class 61 (iii)] A spanner or screwdriver comprises a handle A terminating in a boss A<1> having free ratchet teeth A<2> engaging teeth B<3> on a flange B<1> of a spindle B passing through a hole in the boss and itself having a polygonal &c. hole in which fits a key C adapted to engage socketed screws, a spring D being interposed between the boss and a flange B<2> at the other end of the spindle to keep the teeth in engagement. Ratchet teeth may be provided on both faces of the boss and the spring D dispensed with.
Patent GB-1218288-A (GB)
Title: Moulding thermoplastic compositions resistant to impact and to ageing
IPC: C08F265/04
Filed: 1968-04-10
Abstract: 1,218,288. Grafted acrylic elastomers. UGINE KUHLMANN. 10 April, 1968 [10 April, 1967], No. 17323/68. Heading C3G. A graft polymer is obtained by polymerization of 25 to 95 parts by weight of a mixture of monomers A and B in which A is at least one vinyl aromatic monomer in the proportion of 60 to 100% by weight of A+B B, is at least one ethylenic nitrile in the proportion of 40 to 0% of A + B, C is one or more other copolymerizable monomers in the proportion of 0 to 30% of A+B, the polymerization being carried out in the presence of 75 to 5 parts of an elastomeric substrate comprising an interpolymer of a which is at least one ester of acrylic acid and a C 1  to C 8 -aliphatic alcohol in the proportion of 80 to 99% of the total a+b, b is at least one ester of formula in which R 1  and R 2  represent a hydrogen atom or methyl group, in the proportion of 20 to 1% of a + b, and c is one or more other copolymerizable monomers in the proportion of 0 to 30% of a + b. Monomer A may be styrene, alpha-methyl styrene, a halo styrene or an alkyl-styrene. Specified monomers B are acrylonitrile, methacrylonitrile and methylene glutaronitrile. Monomer C is e.g. an acrylate or methacrylate ester. Specified monomers b are acrylic and methacrylic esters of tetrahydrobenzyl alcohol and 3 - cyclohexenyl - 1 - methyl acrylate and methacrylate. Monomer c may be one of the said nitriles styrene, a vinyl ester, a vinyl alkyl ether, divinyl benzene or allyl acrylate or methacrylate. Examples are given of grafting styrene and acrylonitrile on to an ethyl acrylate-tetrahydrobenzyl acrylate elastomer, the resulting graft polymers being blended with methylene bis-stearamide and, optionally, a styreneacrylonitrile resin.
Patent GB-1407909-A (GB)
Title: Apparatus for singeing threads
IPC: D02J3/16
Filed: 1973-04-11
Abstract: 1407909 Burners for singeing threads FR METTLER'S SONS Ltd 11 April 1973 17325/73 Heading F4T [Also in Division D1] In a yarn singeing apparatus comprising converging channels through which fuel gas/air mixture supplied from a common pipe passes and is ignited to direct flames towards the running yarn, a further group of annularly disposed radially converging channels is provided on the entry and/or exit side of the main singeing zone. Each group communicates with a pipe for the supply of another gas or gas mixture, e.g. air and/or oxygen, which augments the combustion of projecting fibrils and/or removal by burning of combustion residues and/or may cool the singed yarn and be regulated according to the particular material of the yarn. The singeing head shown comprises a body 1 the tapered box 2 of which seats a similarly tapered insert 3 to define with peripheral grooves therein three chambers 5, 4 and 6 whence gas &c. supplied from pipes 8, 23 and 24 pass through main and additional annular groups of radial channels 9, 14 and 15 opening into the singeing zone and entry and exit sides thereof around the yarn 19. A threading-up slot, Fig. 2 (not shown) is provided in body 1 and insert 3.
Patent GB-255099-A (GB)
Title: Improvements in or relating to tyres for endless track vehicles
IPC: B62D55/24
Filed: 1926-07-10
Abstract: 255,099. Kegresse, A. July 11, 1925, [Convention date]. Endless - track vehicles. - Comprises a flexible track in which the core of cotton, hemp, metal or the like has hollow guiding, driving, and traction elements detachably secured to it so that they can be readily changed when wear takes place or for any other reason. The core 1 is continuous and its inner face 2 thus presents an even surface for the load-carrying rollers to run on. The tread or ground surface 4 is plastic and may be of indiarubber vulcanized on to the core. In the construction shown in Fig. 2, and at b, Fig. 5, the core is formed with a continuous rib 5 having grooves 9 into which the ends of hollow metal blocks 3 are sprung. These blocks act as guiding and driving members, and may be covered with indiarubber to reduce noise. The blocks 3 may be riveted to the rib 5, as shown at a, Fig. 5, and the rib may be notched at 6 to increase flexibility. In the construction shown in Fig. 4 and at d, Fig. 5, the blocks 3 are secured directly to the core 1 by means of bolts 11, and a continuous metal band 13 may be provided to take all the traction strain. The blocks 3 and the band 13 may be welded together, so that thecomplete track is formed of two detachable parts,. the core, and the band together with the blocks.
Patent GB-334588-A (GB)
Title: Improvements relating to bituminous paving compositions and methods of making same
IPC: C04B40/00
Filed: 1929-06-06
Abstract: 334,588. Wallace, E. C. June 6, 1929. Compositions containing bituminous andstony materials.-In a process for preparing bituminous paving compositions the aggregate is divided into a coarse fraction (the load bearing element), a finer fraction (the mortar element). and a filler material. The coarse fraction is then coated with bituminous cement, the finer fraction then added, with more cement and finally the filler added and the mass agitated. The coarse fraction may comprise particles of # in. upwards, the finer fraction # in. down to dust and the filler so that all passes a 50 mesh sieve and 60 per cent or more passes a 200 mesh sieve, and may range from # the volume of bituminous cement to an equal volume. The bituminous cement ranges from 4 to 9 per cent of the amount of dust free aggregate. Specification 316,017 is referred to.