baber/WOPTO huggingface dataset:
Patent GB-1168831-A (GB)
Title: Improvements in or relating to a process for the Removal of Straight Chain Hydrocarbons, wholly or in part, from a Hydrocarbon Mixture and to the Purification of a Hydrocarbon product Fraction
Inventor: LAINE BERNARD MAURICE
IPC: C10G67/02
Filed: 1966-02-03
Abstract: 1,168,831. Purifying hydrocarbons using micro-organisms. BRITISH PETROLEUM CO. Ltd. 13 Jan., 1967 [3 Feb., 1966], No. 4763/66. Heading C5E. [Also in Division C6] A hydrocarbon purification process comprises cultivating a micro-organism, which is capable of growing on at least some straightchain hydrocarbons, in the presence of a hydrocarbon feedstock which consists in part of straight-chain hydrocarbons in the presence of an aqueous nutrient medium and in the presence of a gas containing free oxygen; thereafter separating, by using a surfactant, a fraction containing mainly unconsumed hydrocarbons together with a minor proportion of water and surfactant; heating said fraction whereby the surfactant is rendered partially or substantially water insoluble; separating a hydrocarbon phase containing surfactant from an aqueous phase; and hydrogenating said hydrocarbon phase under conditions such that the surfactant is rendered less effective or ineffective as an emulsifying agent. The microorganism may be a yeast or a bacterium. Preferably the surfactant is a non-ionic detergent of the formula A-(CH 2 CH 2 O) n H where A is a residual group of an alcohol or acid and n is an integer. The hydrocarbon phase containing surfactant may be hydrogenated over a cobalt and molybdenum-containing catalyst.
Patent GB-736217-A (GB)
Title: Improvements relating to the cleaning, removal of scale and conditioning of metal surfaces
Inventor: PETERSON RUBEN OLOF
IPC: B21B45/06
Filed: 1952-02-22
Abstract: 736,217. Cleaning metals. OSBORN MANUFACTURING CO. Feb. 22, 1952, No. 4776/52. Class 82 (2). [Also in Groups XXII and XXIII] In a process of cleaning, polishing, removing scale from, and reducing surface stresses and eliminating hard spots in, metal articles such as sheets, strip, rod and wire, the metal is stretched uniformly beyond its yield point and subjected to the action of at least one power-driven rotary brush, either while still under tension or subsequently. As shown in Fig. 1, a metal sheet S<SP>2</SP> is passed between pairs of rolls 68a, 69a and 70a, being stretched between the power driven rolls 68a and 69a, and fractured scale particles on its surface being removed by a brush 75. A further brush 67 provided with a back-up roll 72 is used to polish the sheet, and the lower face of the sheet may also be brushed. The direction of rotation of the brushes may be periodically reversed, and the brush 67 may be replaced by three or more brushes inclined at different angles to the direction of travel of the sheet. When treating rod or wire, the polishing may be effected as shown in Fig. 6 by two sets of brushes 90 and 91, brushing longitudinally and transversely respectively. As shown in Fig. 10, metal strip 132 is stretched between a forward tension unit 131 and a back tension unit 130, each of these comprising two pairs of pinch rolls 135, 136, 140, 141 and 142-145, intermediate roll 139 and 146, and idler rolls 137, 138 and 147, 148, the two units being power driven and mechanically geared to provide the required stretching. Brushing units 133, 134 are provided with high-speed rotary brushes 158, 159 which may be reciprocated transversely to ensure uniform brush wear. As shown in Fig. 12, wire is tensioned between rolls 173 and 175 around which it is wound, subjected to brushing by one or more brushes as shown in Fig. 5 and illustrated diagrammatically by 177. A die 178 may also be employed in this stretched region. The brushes may project abrasive material onto the metal, as described in Specification 736,253.
Patent GB-901944-A (GB)
Title: Apparatus for guiding rolled material between adjacent groups of rollers in a universal rolling machine
IPC: B21B39/16
Filed: 1961-02-09
Abstract: 901,944. Roll guides. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. Feb. 9, 1961 [Feb. 12, 1960], No. 4796/61. Class 83 (4). Apparatus for guiding rolled material between two adjacent sets of rolls in a universal rolling mill comprises guides 5, 5a and 7, 7a pivotally mounted on removable carrying frames 4 and 6, the guides being held in a working position by a counterweight 10. When wedges 9 (Fig. 2), are removed from tie-rods 8 which hold the frames 4 and 6 to a baseplate 1, the counterweight and frames 4 and 6 may be lifted clear of the rolls by a hook 12, the guides pivoting to the position shown dotted in Fig. 1.
Patent GB-786139-A (GB)
Title: Purification of concentrated solutions of salts
Inventor: DAVIS CLYDE WEBSTER
IPC: C01F5/30
Filed: 1956-02-16
Abstract: Water solutions containing at least 40 per cent of zinc and/or calcium and/or magnesium chloride and trace amounts of the oxide of said metals and of at least iron and copper as impurities are purified by adding at at least 50 DEG  C., preferably 100 DEG  C. a water-soluble persulphate, filtering the precipitate, boiling the filtrate and adding metallic zinc to the hot solution, cooling and removing the zinc dust upon which copper has plated out.  The persulphates must have a water solubility of at least 1 per cent and ammonium, sodium and potassium perdisulphates are specified. The zinc is in a form such as dust or mossy zinc, which has a high surface area.  The final filtrate may be treated with hydrochloric acid to neutralize the oxides of zinc &c. present.  Metals which may be removed include copper, iron, manganese, chromium, lead, nickel and molybdenum.  A statement of alternative methods of purification refers briefly to the use of chlorine, hydrogen peroxide or zinc peroxide.ALSO:Concentrated aqueous solutions of one or more of zinc chloride, magnesium chloride and calcium chloride from which iron, copper, manganese, chromium, lead, nickel and molybdenum ions have been removed (see Group III) are used as solvent media for the polymerization of acrylonitrile.
Patent GB-1485255-A (GB)
Title: Powder coating colour change method and apparatus
IPC: B05B12/14
Filed: 1976-02-09
Abstract: 1485255 Powder colour change device for spray coating CHAMPION SPARK PLUG CO 9 Feb 1976 [3 March 1975] 04996/76 Heading B2L  Apparatus for changing the colour of powder used in a spraying operation comprises a spray gun 15, a conduit connected thereto, through which during spraying powder travels in a first direction, pump means 19, 20, in communication with said conduit for supplying different colour powders 23, 24 thereto, means 13, 14, for stopping the supply of a first colour powder to said conduit and spray gun, means for applying a flow in a reverse direction from said first direction to initially purge a first colour powder from said conduit, means for supplying air to said conduit and spray gun in said first direction to purge further first colour powder from said conduit, and means for supplying a second colour powder to said conduit and spray gun. The means for applying a reverse flow may be an air supply 18 arranged to provide a reverse flow under pressure, or a vacuum pump 21 and reservoir' 25 working by suction; Fig. 2 (not shown) explains in detail a valving arrangement for automatic operation; colour spraying of car-bodies is referred to. This latter arrangement allows for a further purging flow in said first direction; all 3 purges are of 1-5 seconds duration.
Patent GB-454758-A (GB)
Title: Differential feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1936-02-19
Abstract: 454,758. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.- (Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Feb. 19, 1936, No. 5010. [Class 112] A differential feed mechanism has main and auxiliary feed dogs mounted independently on opposite sides of the main shaft so interconnected that the feed stroke of the auxiliary dog can be varied by a treadle control while the machine is running. The invention is shown as applied to the differential feed mechanism described in Specification 252,643, [Class 112]. The mounting and operation of the main feed-dog 13 is as described in the above Specification. The auxiliary feed-dog 25 is carried by an upstanding feed-bar 26 at the opposite side of the mainshaft 6 from the main feed-dog mechanism. The fulcrum 27 of the feed bar 26 is vertically below the dog 25. The auxiliary feed-dog 25 is given its feed-lift movements by an arm 28 carrying the fulcrum 27 and a shaft 29 rocked by an eccentric 33 on the main shaft 6. This eccentric is so formed that it imparts a feed lift identical with that imparted to the main feeddog 13 by the eccentric 22. The upstanding feed-bar 26 has an arcuate slot 34 freely entered by a stud 35 on the end of the link 36 which is pivoted at its other end to the main feed-rocker at 15, so as to impart feed advance movements to the auxiliary dog 25. The extent of these movements is determined by the position of the pin in the slot. The position of the pin 35 in the slot 34 is capable of alteration, for varying the differentiation of the feed during the running of the machine, by a treadle chain 43. On exerting a downward pull on the chain, a lever 41 is pulled to its dotted line position, Fig. 3, about its pivot 40 on a fixed bracket arm 39. The lever 41 carries a slotted block 42 embracing a roller stud 37 on the link 36, so that as the lever 41 is pulled down, the stud 37 is lowered to depress the link 36 about its pivot 15, so lowering the position of the stud 35 in the slot 34 and increasing the feed stroke of the auxiliary dog 25 relative to that of the main-dog 13, for fulling-in the work.
Patent GB-216201-A (GB)
Title: Improvements relating to sleeping-berths, or the like convertible for other uses
IPC: A47C17/16
Filed: 1923-02-21
Abstract: 216,201. Plenderleath, J. S. Feb. 21, 1923. Berths convertible into couches.- A pair of berths are arranged so that they can be converted into a settee by a combined sliding and pivotal move-' ment such that, during conversion, the berths occupy positions wholly within the space between them when in their normal horizontal positions. Brackets 1 are provided with slots 5, 11, within which engage rollers 6, 12 on the berths 7, 13 and links 8, 15 are provided, pivoted to the brackets at 9. 18, and to the berths at 10, 16. Supports 20, pivoted to the upper berth at A, detachably engage openings 22 in the brackets 1, and in order to convert the berths into a settee, the lower berth is completely reversed, the supports 20 are folded, and the upper berth is turned through a right angle with its lower side outermost.
Patent GB-1212963-A (GB)
Title: Apparatus for producing filter tips
IPC: A24D3/02
Filed: 1969-01-29
Abstract: 1212963 Production of filters R J REYNOLDS TOBACCO CO 29 Jan 1969 [ 14 Feb 1968] 5065/69 Heading A2C Filter tips are produced in an apparatus wherein tubular elements containing at least one chamber for receiving granular material, are fed to a means for filling the chambers with granular material, after which filling the chamber is sealed. The process may be carried out in an arrangement as shown in Fig. 1, wherein double length tubular elements 4, i.e. a tubular body having a filter wad disposed at the longitudinal centre thereof, thus defining voids at each end of the body, are fed on to the drum 28 via drums 24 and 26. Whilst on the drum 28, one void at one end of the tubular element is filled with granular material which is discharged from hopper 30 by the cam 33 operated plungers 32 Fig.4 (not shown). The tubular element, having one void filled, is transferred to the drum 38 where the filled void is sealed by the insertion into the end of this void of a cap Fig.5b (not shown) or a section of filter wad. The tubular element is then orientated through 180 degrees by passage over drums 70 and 72, and then open void at the other end of this element, filled and sealed on drums 78 and 88 respectively.
Patent GB-139608-A (GB)
Title: Improvements in or relating to valve holders for engines with overhead valves
IPC: F16K27/00
Filed: 1919-02-28
Abstract: 139,608. Hickman, H. G. Feb. 28, 1919. Holding and prizing tools.-A tool for holding the mushroom valves of internal - combustion engines in position during manipulation of the valve springs comprises a cranked rod 3 mounted in a sleeve 2 and provided with means for locking it against rotation in the sleeve. The cranked end of the rod is passed through the threaded hole for the sparking- plug or other suitable hole, into which hole the end 1 of the sleeve is screwed. The cranked end is then turned against the valve by means of a knurled head or cross-pin at the outer end of the rod, and is held in this position by engaging the serrated face 8 of a flanged sleeve 4, adjustably secured to the rod by a cross-pin 5, with the serrated end 9 of the sleeve 2 by means of the nut 6. In modifications, the flanged sleeve 4 is dispensed with and the rod adjustably fixed to the sleeve 2 by a pin passing through the sleeve to engage one of a series of holes in, or flats on, the rod.
Patent GB-596240-A (GB)
Title: Dial traversing and indexing device
IPC: B23Q16/06
Filed: 1945-03-01
Abstract: 596,240. Turrets. PENNSYLVANIA MANUFACTURING CO. March 1, 1945, No. 5094. Convention date, Jan. 27, 1944. [Class 83 (iii)] [Also in Group XXX] A rotary work carrier comprises a rotary dial having a circular row of pins and an oscillating lever adapted intermittently to be moved bodily forward to engage the pins and so rotate the dial. The upper end 4 of a driven shaft 3 projects into a frame or casing 1 and forms a seating for a fixed pintle 5 which carries at its upper end the dial 2 and at its lower end cam members 7 and 8 which are rotated from the shaft 3 by means of pins 13. The dial carries a circular row of depending pins 18 concentric with the axis of shaft 3 and pintle 5 and also a circular row of work-holding sockets 62. Bores 9 and 11 supply lubricant to the various bearing surfaces of the pintle and shaft. Mounted on the frame below the dial is a lever 19 with a rectangular aperture 22 into which slidingly fits a block 23 mounted on the pintle 5. By means of springs 26 engaging the ends of a pin 24 passing through the block 23, the lever 19 is urged in a radially outwards direction so that a recess 50 at the outer end will engage one of the dial pins 18. The lever is given an oscillatory motion by means of a shaft 28 having at its lower end an angularly adjustable arm 27 with a roller 36 depending into a groove 17 in the cam 8 and at its upper end an arm 29 with a number of apertures such as 34, 35 into one of which projects a pin 33 depending from a block 32 in a recess on the underside of the lever. The amplitude of oscillation may be varied by engaging the pin 33 in various of the holes 34, 35. During its movement in one direction, the lever engages a pin 18 and rotates the dial. It is then retracted by means of the cam 7, lever 43, shaft 42, lever 45 and roller 46 so that it performs an idle return movement and then again moves forward to engage another pin 18. During the idle return movement, the dial is locked against rotation by means of a latch 21 with a recessed outer end 52 which is advanced to engage a pin 18 by a spring 61 under the control of the outer cam surface of the disc 8 which operates a roll 55, arm 54, shaft 53 and arm 56 which is bifurcated to engage recesses 58 in the latch pin. Various operations may be performed on the workpieces carried in the sockets 62 while the dial is stationary during the idle return movement of the lever 19 and the cam groove 17 may be so shaped that the idle movement is slower than the dial-rotating movement in order to allow time for the operations. As an example, the apparatus may be used for conveying shell casings, which are placed into the sockets 62, past stations at which percussion elements and pin and cap elements are inserted.
Patent GB-654271-A (GB)
Title: Improvements in or relating to telegraph systems
IPC: H04L1/04
Filed: 1948-02-20
Abstract: 654,271. Multiplex radio signalling. WESTERN ELECTRIC CO., Inc. Feb. 20, 1948, No. 5096. Convention date, June 30, 1943. [Class 40 (v)] [Also in Group XL (b)] In a telegraph signalling system each mark is transmitted as a plurality of frequencies and each space as a plurality of different frequencies and at the receiver a limiter discriminates in favour of the instantaneously stronger current, the output of the limiter being applied to two detectors, one of which detects spacing currents and the other marking currents. Transmission. A master oscillator Oo whose frequency is 85 c.p.s., produces at devices 011 ... 023, called for convenience oscillators, odd harmonics between 425 c.p.s. and 2465 c.p.s. Six channels are provided and in channel 1, for example, oscillators 011 and 012 are keyed by a teleprinter or other suitable transmitting system so that a marking signal causes ocillator 011 to send a 425 c.p.s. current to a common output CB1 while a space sends 595 c.p.s. current. These two frequencies are sent through a low-pass filter F31 and amplifier A2 to a radio transmitter RT where they modulate a carrier. Both mark and space frequencies are also mixed with 5270 c.p.s. current from an oscillator 030 to produce high-frequency currents of 4845 and 4675 c.p.s., respectively, which also modulate the radiofrequency carrier wave via a high-pass filter F32. Each mark and space is thus transmitted as two simultaneous frequencies. Reception. The received carrier signals are demodulated and separated into low or high frequencies by two filters F39, F40. The low frequencies, corresponding to those generated by 011...023 are filtered into separate channels and the marking and spacing frequency for, say, channel 1 is fed to a hybrid network HN. The higher frequencies are again demodulated at DM and reduced to the original frequencies plus 340 c.p.s. (see Specification 654,253), and are also applied to the hybrid networks HN. The hybrid output for channel 1 is amplified and passed via a limiter CL to a pair of mark filters F81, F91 and a pair of space filters F82, F92 designed to accept the four frequencies representing the channel. The mark frequencies are detected at D1 and the space frequencies at D2 to suitably operate a telegraph relay R3 and teleprinter TTY. The function of the limiter CL is to suppress the weaker mark (or space) frequency and noise and to amplify the stronger signal. The effect of fading is this largely eliminated. The system shown comprises also an order-wire channel operating on a tone-to-tone bases to energize a loud-speaker LS.
Patent GB-538815-A (GB)
Title: Tool for use in assembling and dis-assembling metal machine gun cartridge belts and their cartridges
IPC: F42B39/10
Filed: 1940-03-21
Abstract: 538,815. Loading and unloading cartridge belts. McEWAN, J. W. March 21, 1940, No. 5289. [Class 92 (ii)] A tool for use in inserting cartridges in machine gun belts comprises a frame plate with fixed spaced racks holding the cartridges and a manually-operated slidable pressure member for engaging the bases of the cartridges supported in the racks. The tool is adapted for removing a cartridge from the belt the pressure member then engaging the bullet end of the cartridge. In the form shown, a combination tool for pressing the base ends of the cartridges into belt links 2 for loading is, by reversal of a belt placed on the opposite face of the tool, used to press the bullet end of a cartridge from the belt for disintegrating the belt. The frame plate h of the tool has fixed thereto rack members a, b and d, e for supporting the cartridges and links and slidably supports pusher members n, m operated by scissor grips s through rollers r engaging cam surfaces fast with the pushers. As shown, the tool is set for pushing home by member n a number of hand-inserted cartridges supported by the rack teeth b e. By reversing the belt and supporting it on the rack teeth a, d which also support the belt links, the pusher m is operated to engage the bullet end of a single cartridge to divide the belt at any desired point.
Patent GB-579927-A (GB)
Title: Improvements in or relating to the production of iron or steel alloys containing tungsten and silicon
IPC: C21C7/00
Filed: 1942-04-21
Abstract: 579,927. Alloys. CLIMAX MOLYBDENUM CO. April 21, 1942, No. 5353. Convention date, March 6, 1941. [Class 82 (i)] Iron or steel alloys containing tungsten and silicon are produced by adding a preformed tungaten silicide to molten iron or steel, the temperature of the latter being, sufficient to dissolve the silicide. The silicide may be added to a blast furnace as part of the charge or to the iron or steel in a ladle and a mixture of tungsten silicides with or without an excess of silicon may be used. Other alloying ingredients such as molybdenum, chromium and nickel may be added with the silicide. When molybdenum is used, it is usually added in the form of ferro-molybdenum or calcium molybdate. Reference has been directed by the Comptroller to Specification 151,974, [Class 82. (i)].
Patent GB-608362-A (GB)
Title: Improvements relating to screw and nut mechanisms
IPC: F16K27/00
Filed: 1946-02-21
Abstract: 608,362. Screw-and-nut mechanism. GENERAL MOTORS CORPORATION. Feb. 21, 1946, No. 5394. Convention date, Feb. 24, 1945. [Class 80 (iii)] [Also in Groups XXX and XXXIII] A screw-and-nut mechanism, particularly for operating the doors or flaps of aircraft, comprises a screw shaft 20 rotated by, for example, an electric motor to displace a nut member 21 axially to operate an actuating member 65 connected thereto by a tubular member 60, telescopic shields 40, 50 and 70 being provided for excluding dust and grit from the mechanism. The portions 40, 50 slide on the outer surface of the tube 60 whilst the portion 70 moves within the tube 60 under control of a spring 75, sealing rings 41, 51, 52, 61 and 66 being provided between the various members.
Patent GB-554359-A (GB)
Title: Improvements relating to window wiper mechanisms
IPC: B60S1/34
Filed: 1942-04-22
Abstract: 554,359. Windscreen wipers. ROVER CO., Ltd., and IVERSEN, P. A. SCOTT-. April 22, 1942, No. 5398. [Class 138 (i)] [Also in Group XXIV] A windscreen wiper comprises a driving spindle a and an oscillating wiper arm e pivoted on a spindle c integral with and included to the spindle a. The wiper holder g is pivoted to a pivot h on the arm e in such a manner that the pivot is at right angles to the plane of the blade f. Rotation of the shaft a causes the arm e to oscillate carrying with it the blade f which in each direction of motion adopts a trailing position. The axis of the spindle c may be inclined as shown to intersect the axis of the shaft a at a point x in which case the axis of spindle c describes a double cone, but it may be arranged to intersect at y in which case a single cone is described. To hold the blade f in contact with the screen a spring may be used and this may also be effected by a friction clutch comprising a cap k splined to the spindle c and pulled inwards by a spring m so as to cause discs i to engage the faces of the sleeve d of the arm e and this ensures that the wiper arm is pressed towards the screen. Upon reversal of the shaft a the wiper is parked away from the screen. The parts h, i, j, k may be protected by a two part spherical housing. In a modification a pivot pin is formed on the arm e and engages an inclined socket integral with the shaft a.