baber/WOPTO huggingface dataset:
Patent GB-1441092-A (GB)
Title: Gas mixture and process for gas nitriding
IPC: C23C8/26
Filed: 1972-09-06
Abstract: 1441092 Gas nitriding BARKAS-WERKE VEB 30 Aug 1973 [6 Sept 1972] 41242/72 Heading C7U [Also in Division F2] Metal articles, e.g. steel piston-rods, nozzles or punches, are gas nitrided by heating in a gas mixture consisting of ammonia, carbon monoxide and optionally argon and/or nitrogen, e.g. in a shaft furnace.
Patent GB-1433534-A (GB)
Title: Vacuum-cleaner nozzle
IPC: A47L9/06
Filed: 1973-09-03
Abstract: 1433534 Vacuum-cleaner nozzles PHILIPS GLOEILAMPENFABRIEKEN NV 3 Sept 1973 [6 Sept 1972] 41372/73 Heading A4F To bring a suction element, e.g. a brush 7 mounted on a base-plate 8, of a suction-cleaner nozzle from an inoperative position, to which it is biassed by compression springs 14, to an operative position in which it extends below a carpet sweeping element 3, a mechanism is provided comprising an actuating member 17, having a shoulder 18 serving as a latching cam, a pivotable lever 15 and an elastically deformable element such as a spring 20, adjacent the pivot point of the lever 15, the elastically deformable element being deformed when a force is applied to the member 17 and, upon relaxation, moving the suction element into its operative position. As shown the actuating member 17 is foot operated and acts on the end of the lever 15 remote from the end which bears against the spring 20. An intermediate point 16 of the lever bears against the base-plate 8. On depression of the member 17 the spring 20 is compressed by the lever 15. After the shoulder 18 of the member 17 has engaged a part 19 of the housing and upon release of pressure from the member 17, the spring 20 relaxes and moves the base-plate 8 and brush 7 downwards. In alternative embodiments (not shown) the spring 20 may be omitted, the elastically deformable element being constituted by part of the lever 15 itself or by the base-plate 8.
Patent GB-860749-A (GB)
Title: Improvements in microwave amplifier
IPC: H01S1/02
Filed: 1958-12-23
Abstract: 860,749. Masers. GENERAL ELECTRIC CO. Dec. 23, 1958 [Dec. 27, 1957], No. 41475/58. Class 40 (9). A maser material comprises paramagnetic isotropic ions and paramagnetic anisotropic ions. The isotropic ions have a long relaxation time during which they can usefully be used for amplification. By themselves, however, they also have a long and useless thermalization time. Anisotropic ions have a short thermalization time, and if during the useless period the resonance frequencies of the two ions are made equal, by, for example, suitable change in the magnetic field, then energy transfer is effected between the isotropic and anisotropic ions, whereby the thermalization period is reduced. As shown, a radar transmitting system 9 energizes the antenna system 11 which feeds the received pulses along the wave-guide 13 to the maser crystal 17. The system 9 also generates timing pulses for feeding a pulse shaper 57 which triggers the flip-flop 37 and after a delay imposed by the delay line 59 changes the state of the bi-stable circuit 31. Flip-flop 37 causes the motor 35 to rotate the turn-table 33 carrying the magnet 25 which is thereby so positioned relative to the axis of the maser crystal 17 that the resonant frequencies of its isotropic and anisotropic ions are different. Shortly afterwards bi-stable circuit 31 reverses the direction of magnetization of the magnet to place the ions in the high-energy or useful state, the isotropic ions having a long relaxation time and resonance frequency equal to that of the incoming wave, so that they amplify the latter. The amplified signal is then passed to the utilization device 63. At the end of the relaxation time, flip-flop 37 reverts to its stable state and rotates the magnet to a position in which the resonant frequencies of the isotropic and anisotropic ions are equal, thus permitting of the rapid establishment of thermal equilibrium whereupon the system is ready to amplify the next pulse. Inversion of the ions into the high-energy state may be effected by other known techniques, e.g. by the use of a strong pulse of high-frequency energy or by the use of a varying direct magnetic field. Also the variation of the direction of the magnetic field with respect to the crystal axis may be effected by the alternate energization of two suitablyplaced magnets; or alternatively the crystal itself could be rotated. The crystal should be cooled by liquid nitrogen or helium. A suitable maser material consists of a host material of magnesium sulphate having 1% of the isotropic material MnSO 4 .7H 2 O and 1% of the anisotropic material CoSO 4 .7H 2 O. Other suitable isotropic materials are salts of gadolinium, europium, nickel, chromium, vanadium, titanium and double valent manganese and triple valent ferric ions except in cyanide complex compounds. Other suitable anisotropic materials are salts of copper, all rare earths except gadolinium and europium, and manganese and iron in cyanide complex compounds.
Patent GB-953688-A (GB)
Title: Derivatives of fluoro-dichloro-methane sulphenic acid
IPC: C07D263/58
Filed: 1962-11-02
Abstract: The invention comprises fluorodichloromethanesulphenic acid derivatives of formula: R-X-SCFCl2 where R is alkyl, chloralkyl, alkoxyalkyl, cyclo-aliphatic, aromatic or heterocyclic or R-X-stands for <FORM:0953688/C2/1> being alkoxy or amino and Y being sulphur or N-R1, and X is oxygen or sulphur or N-R1, R1 being hydrogen, alkyl, cycloaliphatic or aromatic, or X is -NZ, Z being the atoms necessary to complete a 5- or 6-membered heterocyclic ring.  R when aromatic may be substituted by halogen or nitro. They are prepared by reacting fluorodichloromethanesulphenyl chloride FCl2CSCl with compounds RXH with or without an acid acceptor or as salts. An inert solvent, e.g. water, may be used.  The products are pesticides.  Specification 927,834 is referred to.ALSO:Pesticidal compositions comprise, along with a solid or liquid carrier, a fluorodichloromethanesulphenic acid derivative of formula <FORM:0953688/A5-A6/1> where R is alkyl, chloralkyl, alkoxyalkyl, cycloaliphatic, aromatic or heterocyclic or R-X-stands for <FORM:0953688/A5-A6/2> R11 being alkoxy or amino and Y being sulphur or N-R1, and X is oxygen or sulphur or N-R1, R1 being hydrogen, alkyl, cycloaliphatic or aromatic, or X is -NZ, Z being the atoms necessary to complete a 5- or 6-membered heterocyclic ring.  R when aromatic may be substituted by halogen or nitro.  (For preparation see Division C2.)  Specification 927,834 is referred to.
Patent GB-1076470-A (GB)
Title: High power gas flashtube
IPC: H01S3/092
Filed: 1965-09-30
Abstract: 1,076,470. Discharge lamps. HUGHES AIRCRAFT CO. Sept. 30, 1965 [Dec. 31, 1964], No. 41570/65. Heading H1D. The trigger electrode of a high-power flash discharge lamp-e.g. for pumping a laserconsists of a wire mesh of parallel longitudinal wires connected by parallel transverse wires, wrapped symmetrically around the envelope, whereby the simultaneous production of a plurality of symmetrically disposed breakdown paths reduces the likelihood of rupture of the envelope by the attendant shock wave. The mesh may be of copper wires, silver plated to improve their reflectivity, and the tube, of cylindrical or spiral shape and having a discharge electrode mounted at each end, may have a fill of xenon or krypton.
Patent GB-1032796-A (GB)
Title: Method of purification of hydrogen chloride
IPC: C01B7/00
Filed: 1964-10-13
Abstract: Hydrogen chloride is freed of water vapour and relatively high boiling gaseous contaminants, e.g. chlorine, hydrogen fluoride, by compressing and cooling the feed gas to condense said contaminants which are then separated by mechanical means or by absorption, following which the partially purified gas is compressed at 7 above its liquefaction pressure and fed at about 30 DEG  C. to a fractionating column 8 from the head of which purified hydrogen chloride is withdrawn as product part of which is condensed at 15 and used as reflux whilst the bottoms are withdrawn continuously.  The latter may contain chlorine which is vaporized in an evaporator.  In the event of chlorine being the only contaminant in the feed mixture, the preliminaty cooling, condensation and separation of the high boiling impurities is dispensed with.  Product hydrogen chloride gas may be condensed and fed to a further column for the separation of permanent gases.
Patent GB-1366325-A (GB)
Title: Remote control assembly
Inventor: BENNETT W
IPC: F16C1/22
Filed: 1971-09-08
Abstract: 1366325 Bowden mechanisms TELEFLEX Inc 8 Sept 1971 [8 Oct 1970 (2)] 41913/71 Heading F2K A Bowden mechanism comprises a movable core 14 and a normally fixed outer sheath 12 having a one-way ratchet, adjustment means 24 which allows the sheath 12 to move relative its plastics end fitting 34 on the application of a tension, i.e. pull force on the core 14 in excess of the normal operating force required for controlling for example, an automobile carburetter (not shown) from the accelerator pedal (not shown) via the Bowden mechanism, whereby the overall effective length of the outer sheath 12 relative the core 14 may be automatically readily adjusted to correctly position, as required, the accelerator pedal (not shown) when the core 14 and connected carburetter control lever (not shown) have been moved to a maximum, i.e. extreme position and bottomed out during initial installation of the arrangement, such that continued excessive pulling force applied to the core 14 places a force on the outer sheath 12 tending to decrease its length by removing curves, bends or bows, &c., to straighten out the sheath 12 which will automatically shorten as the one-way adjustment means 24 ratchets to absorb the excess sheath length. As shown a serrated ratchet member 38 fast with the outer sheath 12 internally engages a correspondingly internally serrated plastics end fitting 34 which is circumferentially and longitudinally split at 42, 44 to provide the necessary resilience for the one-way ratchet adjustment, whilst in Figs. 5 and 7 (not shown) a manually releasable wire spring loaded latch (126) is similarly biased into engagement with the outer sheath serrated member (128) for the one-way ratchet adjustment.
Patent GB-1021477-A (GB)
Title: Composite textile products made from filamentary materials
IPC: D01F6/66
Filed: 1962-11-07
Abstract: Composite yarn or woven fabric is made from two kinds of staple fibres (or continuous filaments) one or both of which is/are composed of an oxymethylene polymer.  One fibre is buckled by the influence of the other e.g. as caused by differential shrinkage on heating to at least 140 DEG C or treating with swelling solvents, to produce bulk and/or decorative effects.  The oxymethylene fibre or a proportion thereof may be pretreated e.g. by heating to above 120 DEG C while held at constant length, to reduce its heat shrinkage. The other fibre may be natural such as cotton, linen, silk, wool, or of a polyacrylic, polyamide, polyester or rayon.  The composite yarn may be formed from blended fibres, or by intertwisting two multifilament ends, or yarns of the two kinds of fibre may separately constitute the warp and weft in a fabric.
Patent GB-1013925-A (GB)
Title: Controlling the amount of tobacco in a tobacco filler rod
IPC: A24C5/18
Filed: 1961-11-29
Abstract: 1,013,925. Automatic tobacco control. K. KÍRBER. Nov. 29, 1961 [Dec. 1, 1960], No. 42644/61. Heading G3R. [Also in Division A2] In a machine for producing a wrapped tobacco rod 10 employing a trimming knife 4 to remove excess from a main tobacco stream and a roller 6 to compress it, both the trimming level and the degree of compression are varied in response to the output of an unspecified measuring device 11 situated anywhere after (or alternatively, before) the trimmer. Both the trimmer and the roller are adjusted by cams driven from a control box 13. It is stated that this control may either drive both cams in response to signals from device 11, or the signals may be used to control one cam only (either one), in which case the other is operated only when the first reaches the end of its optimum operating range. The second cam may then move an amount which causes the first cam to be driven to the opposite end of its operating range. Limit switches may be operated by the trimmer control mechanism. Tobacco from a distributor 1 is carried to a grooved wheel 3 by a belt 2; the wheel carries the tobacco by suction and/or by pressure from a belt, which may be the belt 2 carried partly round the wheel's periphery. Gross inequalities are removed by a rotating brush 37. The excess tobacco is returned to the belt 2 by a second wheel 5. The roller 6 is driven at the speed of the tobacco stream and the trimmer 4 may comprise a rotating cutter. Specification 1,013,492 is referred to.
Patent GB-894458-A (GB)
Title: Improvements in and relating to carbonisation
IPC: H01K1/06
Filed: 1959-12-16
Abstract: Graphite fibres are produced by heating natural or regenerated cellulose fibres at a rate of heating of 10 DEG -100 DEG C. per hour up to 100 DEG C., at a rate of heating of 10 DEG -50 DEG C. per hour between 100 DEG  and 300 DEG C., at a rate of heating of 10 DEG -55 DEG C. per hour between 300 DEG  and 400 DEG C., at a rate of heating of 10 DEG -100 DEG C. per hour between 400 DEG  and 900 DEG C., and at a rate of heating of 1000 DEG -3000 DEG C. per hour between 900 DEG C. and graphitizing temperature.  Heating above 900 DEG C. may be effected in an atmosphere of nitrogen.  The cellulose fibres may be woven or wound on a cylinder or plate.
Patent GB-1211446-A (GB)
Title: Yarn jet apparatus
IPC: D02J1/08
Filed: 1968-09-10
Abstract: 1,211,446. Texturing multifilament yarns: fluid jets. MONSANTO CO. 10 Sept., 1968 [25 Sept., 1967], No. 42971/68. Heading D1F. A process for treating a synthetic thermoplastic multifilament yarn comprises moving the yarn 10 through a confined zone, delivering a stream of fluid to the zone, and oscillating substantially the complete flow of fluid between two intersecting discharge ports 18, 19 so that the yam is regularly and intermittently treated with the fluid. Apparatus for treating the yam comprises means, e.g. a tube 11, defining a confined zone for yarn passage therethrough, a fluid diverting valve 14 having two output ports 18, 19 opening into the confined zone, a source of treating fluid supplied to the valve, and means associated with the valve for oscillating substantially the complete flow of fluid from one output port to the other to intermittently deliver fluid to the moving yam. The fluid diverting valve 14 includes an input port 13, a tapered block 20 splitting the fluid delivered from the input port 13 to the two output ports 18, 19, and a conduit 17 forming a closed feed back circuit having opposed openings communicating with the fluid flow between the input pont 13 and the tapered block 20 so that oscillating shock waves moving in the conduit 17 cause substantially complete flow of fluid to be moved regularly and intermittently from one output port 18 to the other 19. Depending on the effect to be achieved in the yarn, the yarn is either overfed or fed under tension to the confined zone. The treating fluid may be air or steam.
Patent GB-1354647-A (GB)
Title: Nutating disc vibrator
IPC: B06B1/18
Filed: 1972-09-15
Abstract: 1354647 Vibrators F GARTNER 15 Sept 1972 [20 July 1972] 43014/72 Heading F2X A vibrator comprises a nutating inertia disc 7 mounted inside a cavity 4 within a easing 1, 2, the cavity 4 being defined by a concave spherical surface 8 and by inwardly projecting lower and upper coaxial conical surfaces 5, 6 which serve to guide the disc 7. An inlet 10 positioned in a wall of the casing directs a working fluid, e.g. compressed air, into the cavity 4 along a path lying substantially in the plane of symmetry of the nutating movement of the disc 7 to impinge upon the disc and cause its nutating movement, while outlet means comprising, e.g. a row of channels 11 distributed along the line of intersection of the conical and spherical surfaces 5 and 8, conduct the working fluid out from the cavity 4. In the Fig. 1 embodiment, the disc 7 is maintained in an inclined position by ballended rods 14, 15 which engage, with their ballends 16, 17 respectively, hemispherical recesses 18, 19 centrally located in the opposite faces of the disc 7. The rods themselves are received within coaxial conical recesses 12, 13 in the apices of the conical surfaces 5, 6. When a jet of working fluid impinges on one or other surface of the disc 7, the disc 7 is caused to roll upon the conical surfaces 5, 6 with its axis performing a nutating movement about the axis of symmetry of the cavity 4. Alternative forms of disc are a simple disc with no central recesses (Fig. 3, not shown) and discs provided with ball bearing means (Figs. 5 and 6, not shown). With any of these alternative forms, the disc 7 when at rest may obstruct the inlet 10 and in order to overcome the resultant difficulty in starting the vibrator, the disc 7 (as shown in Fig. 7) has its periphery chamfered at 26 to a line edge and the inlet 10 has a channel 27 extending into the casing element 2. The channel 27 results in more fluid being deflected upwardly than downwardly which causes the disc 7 to tilt out of alignment with the inlet 10 and to commence its nutating movement.
Patent GB-1086026-A (GB)
Title: Tunnelling process and machine
IPC: E21D9/10
Filed: 1964-10-22
Abstract: 1,086,026. Tunnelling machines. J. BOSSNER. Oct. 22, 1964, No. 43186/64. Heading E1F.  In a tunnelling process a shield type tunnelling machine is advanced by means, preferably hydraulic rams, on the machine acting against a setting section of a concrete lining being formed to the tunnel being bored by the machine. The rotary cutter head of the machine is rotatably supported within the front section of a sleeve rotatably mounted within but axially locked to the shield of the machine to extend rearwards of the shield to form a shuttering for the casting of the lining as the tunnel is advanced. Rotation of the cutter head relative to the sleeve and the sleeve relative to the shield as required is controlled as required by the ratcheting action of rams annularly disposed both inside and outside the sleeve to engage teethed rings on the cutter head and shield.
Patent GB-1515518-A (GB)
Title: Hydraulically powered hammer
IPC: F01L21/02
Filed: 1975-10-21
Abstract: 1515518 Hydraulic reciprocating motors RAYMOND INTERNATIONAL Inc 21 Oct 1975 [13 Nov 1974] 43194/75 Heading F1A [Also in Division B3] The alternating supply and exhaust of hydraulic fluid from the working chamber(s) of an hydraulically powered hammer having an anvil 34, Fig. 2, is controlled by a reversing valve spool 100, Fig. 3, changed over by the alternate pressurization of pilot lines 60, 62, the pressurization of one or other pilot line 60, 62 being effective in displacing the valve spool only after a delay during which fluid from the pressurized pilot line is received in an accumulator chamber 72A or 73A. In Fig. 3, fluid admitted to say pilot line 60 enters accumulator chamber 72A through an adjustable metering valve 124 and displaces a piston 118, 118A through a gap G, before it contacts and displaces the spool 100. In a second embodiment, Fig. 5 (not shown), pilot fluid first enters an accumulator chamber (150A or 151B) and displaces a spring-loaded adjustable stroke piston (152 or 153) before acting on the piston 118 or 119 which in this case is not spaced by the gap G from the spool. The hammer has a massive cylinder 36 slidable on bearings 38 in a casing 24 and reciprocable over a fixed piston 42 mounted on stems 48, 50 having hydraulic lines 56, 58 leading to the working chambers 44, 46. Chamber 44 may be permanently pressurized or alternately pressurized and exhausted like the chamber 46. The pilot lines 60, 62 extend through the stems 48, 50 and are arranged to be pressurized from respective working chambers 48, 44 when cylinder seals 52, 54 uncover their inlet ports 63, 61.
Patent GB-1489826-A (GB)
Title: Process for copolymerizing styrene and acrylonitrile
IPC: C08F291/02
Filed: 1975-10-22
Abstract: 1489826 Removing acrylonitrile monomer LABOFINA SA 22 Oct 1975 [24 Oct 1974] 43378/75 Headings C3P and C3G Residual acrylonitrile monomer is removed from copolymers or graft copolymers of styrene and acrylonitrile (e.g. SAN and ABS resins) by washing with an aqueous solution of an alkali metal sulphide or disulphide.
Patent GB-1481089-A (GB)
Title: Process for treating waste water
IPC: C02F9/00
Filed: 1974-10-08
Abstract: 1481089 Purifying waste water STAMICARBONBV 8 Oct 1974 [8 Oct 1973] 43555/74 Heading ClC Waste water containing dye residues, detergents, textile fibre residues, fats or proteins is purified in two stages wherein the waste is first biologically purified to give a water having a COD of 300-450 mg/litre and then treated by adsorption on activated carbon.
Patent GB-1064530-A (GB)
Title: Improvements in or relating to casings for slings
IPC: F16G11/00
Filed: 1964-10-26
Abstract: 1,064,530. Rope slings. J. F. ARCHER. Oct. 26, 1964 [Nov. 4, 1963], No. 43626/64. Heading B8H. A sleeve 17, Fig. 4, which clamps a rope sling to form a lifting loop 16 is provided with a casing 20 which fits tightly round the sleeve and allows the parts of the sling to diverge from the sleeve by a controlled amount. The casing may be formed from an aluminium alloy or steel suitably rust-proofed and the sleeve is retained by a pin 14 which passes through the loop. The outer parts of the central bore are curved as at 5, 6, Fig. 1, so that the terminal portions are oval in cross-section. Fig. 5 shows a four-strand sling the loops 25, 26 of which intersect one another so that both loops stay together in the centre of a lifting hook 27.
Patent GB-1189458-A (GB)
Title: Improvements in or relating to dialysers
Inventor: HASELDEN GEOFFREY GORDON
IPC: B01D63/00
Filed: 1967-09-27
Abstract: 1,189,458. Surgical dialysis. NATIONAL RESEARCH DEVELOPMENT CORP. 27 Sept., 1968 [27 Sept., 1967], No. 43954/67. Heading A5R. [Also in Division B1] A self-contained dialysis pack for use in an artificial kidney machine comprises a stack of plates 11 each having a pattern of ridges 12 and valleys 13 and arranged in oppositely facing pairs, located between consecutive pairs of plates and supported by the ridges 12 there is located a pair of dialysis membranes 14 or a flattened tube of membrane material to provide blood flow passages 15 and the spaces for dialysis fluid are packed with dialysis-fluidsaturated adsorbent material 16 which may be an ion-exchange resin optionally containing enzymes. The complete stack may be sealed at the edges of the plates and membranes and enclosed in an outer plastic cover, with tubes for conveying the patients blood to the pack and back again and an air-bubble rejector in the blood outlet of the unit. The dialysisfluid does not flow through the unit as in previous machines but a quantity of dialysisfluid (measured by a variable volume bellows or bag) equivalent to the amount of water to be removed from the patients blood is removed from the passages containing the dialysis-fluid-saturated adsorbent. The blood is returned to the patient either by forcing dialysis liquid back into the pack or by displacement by saline solution from a variable volume bag or sac connected to a blood inlet tube by means of a valve, a bursting disc or a capillary to reduce diffusional flow.