baber/WOPTO huggingface dataset:
Patent GB-858161-A (GB)
Title: Purification of uranium hexafluoride
IPC: C01G43/06
Filed: 1959-03-13
Abstract: <PICT:0858161/III/1> Vaporized uranium hexafluoride is freed from vanadium oxytrifluoride impurity by passing it in contact with a cooled surface to condense uranium hexafluoride as a liquid, and deposit vanadium oxytrifluoride as a solid on the cooled surface. The condensed uranium hexafluoride is mixed with further impure uranium hexafluoride and the vaporized mixture is recycled in contact with the cooled surface until the vanadium oxytrifluoride has been substantially entirely eliminated from the uranium hexafluoride condensate.  Any volatile impurities which are not condensed with the uranium hexafluoride may be continuously withdrawn, such withdrawal preferably constituting 0.5-10% by weight of the crude uranium hexafluoride feed.  Non-volatile impurities remaining in the uranium hexafluoride after removal of vanadium oxyfluoride may be separated by distillation.  In a continuous process (see Figure) crude uranium hexafluoride is vaporized in still 2 and passes via line 6 into fractionating column 7, which may have external heating means 57, from the top of which exit uranium hexafluoride, vanadium oxytrifluoride, and volatile impurities vapours, via line 8 into zone 12 containing a cooled coil 13, upon which solid vanadium oxytrifluoride is deposited; the uncondensed volatile impurities are removed via line 22, and the liquefied uranium hexafluoride is returned to the fractionating column 7 via lines 16 and 18, and optionally line 19.  Some of the liquid uranium hexafluoride from the bottom of the column 7 may be returned to the still 2 via lines 45 and 47, or it may be sent to vaporizer 51, from which some may be returned to column 7 via line 55; the remaining vapour is passed via line 63 to fractionating column 65, which may have external heating means 66.  Pure uranium hexafluoride vapour leaves column 65 via line 69 and is condensed by condenser 71.  Liquid product may be withdrawn via line 76, and some may be cycled to the top of column 65 via line 79.  The apparatus may be operated at superatmospheric pressure, e.g. 10-150 p.s.i.g.
Patent GB-801685-A (GB)
Title: Improvements in or relating to sparking plugs
Inventor: BLAND MAXEY HUNGERFORD
IPC: H01T13/32
Filed: 1955-03-26
Abstract: 801,685. Sparking plugs. LODGE PLUGS, Ltd. Jan. 12, 1956 [March 26, 1955], No. 8896/55. Class 7(4) The insulator 11, at that end thereof which is adjacent the firing tip of the central electrode 12 and is of reduced diameter to lie out of surface contact with the plug body, has axially projecting therefrom a small protrusion 15 of relatively narrow diameter the outer radial end face 16 of which lies flush with the end of the central electrode 12. The protrusion may be parallel throughout its length on the major part thereof but is preferably tapered. The earthed electrode may be tapered at its free end (Fig. 2). The end part 14 of the central electrode is preferably of platinum. The diameter of the end 14 of the central electrode may be in the region of 0.02 ins. while the external diameter of the annular end face 16 of the protrusion 15 is approximately 0.06 ins. The axial length of the protrusion may be 0.03 ins.
Patent GB-726247-A (GB)
Title: Improvements in or relating to acoustic resistors
IPC: H04R1/22
Filed: 1953-03-31
Abstract: 726,247. Acoustic resistors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 31, 1953 [April 3, 1952], No. 8900/53. Class 40 (8). An acoustic resistor comprises a spirally wound tape 3 having a wire or second tape 4 wound on it with spaced turns. A further tape 2 may be interposed between the turns of the tape 3. The resistor 10, Fig. 3, may be supported between a core 1 and a polepiece 9 of an electrodynamic microphone whose diaphragm 6 lies in front of the resistor.
Patent GB-526581-A (GB)
Title: Improvements relating to the starting of injection-type internal combustion engines
IPC: F02M69/00
Filed: 1939-03-21
Abstract: 526,581. Starting oil engines. DAIMLERBENZ AKT.-GES. March 21, 1939, No. 8939. Convention date, March 31, 1938. [Class 7 (iii)] In an engine in which the normal fuel supply is increased for starting purposes means are provided by which the increased supply is cut off after starting by release mechanism acting on the fuel supply pumps and dependent upon the engine speed or operative after a predetermined time period. As shown in Fig. 1 an acceleration pedal 13 is connected by a rod 11 to a link 10 which controls an air throttle valve 7, fuel pumps 4 and a link 23 for regulating a blower, not shown. The link 10 is connected through trip mechanism with a bell-crank 18, 19 which is controlled by a release mechanism 22 embodying an electricallyactuated time switch or a spring which is wound by the tripping of the bell-crank. In operation, the pump delivery is set for starting purposes by depressing the pedal 13 and thus moving the arm 18 into the position 18<1> where it remains until released by the mechanism 22. Movement of this pedal 13 into its limiting position 13<11> trips the bell-crank and forces the arm 18 into the position shown in full lines this movement winding the mechanism 22 if a spring is in use.
Patent GB-218371-A (GB)
Title: Improvements in and relating to apparatus for delivering predetermined volumes of liquid
IPC: B67D7/16
Filed: 1923-03-29
Abstract: 218,371. Hayes, S. M. March 29, 1923. No Patent granted (Sealing fee not paid). Fixed-chamber apparatus; valve systems for; varying quantity measured in. - Relates to apparatus of the typs in which the capacity of a wholly or partly transparent container is varied by the vertical adjustment of an internal overflow tray or tube, means being provided for main. taining the tray or tube in selected position during the complete cycle of filling and discharging operations, and consists in connecting an operating handle to a collar adapted to be rotated by reciprocating the handle, such collar having a slot in its periphery adapted to be brought into register with a bar to permit vertical movement of the handle, the bar preventing vertical movement of the handle, during its reciprocating movement. The transparent measuring chamber 1 is superimposed on a vertical casing 2 having a series of horizontal slots 3 connected by a common vertical slot within, which moves a handle 1 which is moved into one of the slots 3 according to the quantity of liquid required. As usual, the handle moves a vertical overflow pipe 5<a> carrying at its upper end within the measuring chamber 1 a shallow tray 6, the delivery being effected by rotation of a sleeve 7 surrounding the pipe 5<a>, the rotation of the sleeve opening and closing inlet and discharge valves f, g of the chamber 1. The rotation of the sleeve 7 in the present invention is effected through ratchet - and - pawl mechanism from the handle 5. The latter is connected to a collar 10 carrying within a cavity 11 a spring-pressed pawl 12 which engages the ratchet periphery 13 of a ring 14 in one with a ring 15, the ring 14 being connected by short pieces passing through diametrically opposite vertical slots in the sleeve 7 to a collar 17 fast with the pipe 5<a>. The ring 14 is notched as at 19 to engage a vertical bar 20 which is notched or slotted at intervals 21 corresponding with the, slots 1. In use the handle 5 is raised, thus raising the pipe 5a until the handle is in the selected slot 3, when the handle is reciprocated to rotate the sleeve 7. The engagement of the periphery of the ring 14 in the corresponding slot 21 prevents further vertical movement of the handle and pipe until a complete turn of the sleeve and ring brings slots 19, 21 into register again. Specifications 217,679 and 217,680 are referred to.
Patent GB-565945-A (GB)
Title: Apparatus for the separation of liquids of different boiling points from mixtures thereof by fractional distillation
IPC: B01D3/14
Filed: 1942-01-12
Abstract: 565,945. Column stills. WOODALLDUCKHAM (1920), Ltd., and CHADDER, W. J. Jan. 12, 1942, No. 9026/43. Divided out of 565,921. Drawings to Specification. [Class 32] Improved apparatus for operating the fractionating column 6 mounted on a still 5 (described in Specification 565,921) according to the process described in Specification 565,919, comprises a valve 18, Fig. 1A (shown in Specification 565,921), and an outlet 15 arranged flush with the plate associated therewith to permit rapid draining of the plate, and a liquid seal 19 in the pipe leading from the valve 18 to the cooler 16. U.S.A. Specification 2,067,627 also is referred to.
Patent GB-1449563-A (GB)
Title: Atomisers
IPC: B05B1/30
Filed: 1974-02-28
Abstract: 1449563 Atomizer CLARKE CHAPMAN Ltd 20 Feb 1975 [28 Feb 1974] 9032/74 Heading F4T An atomizer of the recirculating type comprising a discharge orifice 28, a lance 13 movable to engage its tip 20 with the orifice to shut off the discharge, and means 31, 32, 33, for providing an indication when the orifice is closed. Liquid fuel flows along pipe 3 through passages 8, 29, 30, to a swirl chamber 27 where it emerges as a cone of fine droplets through orifice 28. A proportion of the fuel flows back via the clearance between an orifice 19 and tip 20, through a tubular member 12 and passages 16 in a spider 14, to a pipe 2. When the lance has moved so that orifice is closed by tip 20, an electric circuit is completed and a lamp 32 glows or an audible signal is provided to indicate the closed position.
Patent GB-1492873-A (GB)
Title: Loading chutes
IPC: B63B27/28
Filed: 1975-03-04
Abstract: 1492873 Telescopic shoots MITSUI SHIPBUILDING & ENG CO Ltd and KAWASAKI STEEL CORP 4 March 1975 [4 March 1974 (2)]  9036/75 Heading B8S A loading shoot for use in loading material into the hold 20 of a ship comprises a plurality of unit ducts 1-4 arranged for telescopic movement to a folded condition, shown in Fig. 2 (not shown), under the action of drums 24 which are connected by wire ropes 23 to the lowest unit duct 4, the uppermost duct 1 being provided with a plurality of trays 5 arranged therein to provide a zig-zag passage for material flowing therethrough, a tray 5d being secured to the lower end of duct 1, and trays 6d, 7d, 8d are hingedly mounted respectively on the ducts 2-4 while trays 6a-6c, 7a-7c, 8a-8c are each suspended in the ducts 2-4 respectively from the duct immediately thereabove, such that when the ducts 2-4 are retracted to a folded condition the trays move to inoperative vertical positions, as shown in Fig. 5 (not shown). In the condition of the shoot shown in Fig. 1, the tray 6b is suspended from the tray 5d, the trays 7b and 8b being suspended respectively from the trays 6d and 7d respectively by chains or wire ropes 10, 11, Fig. 4, while the trays 6d, 7d, 8d are maintained horizontal by means of wire ropes 13 connected to the tray immediately thereabove, and the trays 6a, 7a, 8a are each attached by wire ropes or chains 10, 11 to the duct immediately thereabove and by further wire ropes or chains to the trays 6c, 7c, 8c respectively. In a modified construction, Figs. 8-10 (not shown), the trays (6a-6d), (7a-7d) and (8a-8d) are rotatably mounted on slide blocks (28) which run in rails (31) provided in the ducts, and in a further modified construction, Figs. 11-13 (not shown), trays (6-8) are pivotally mounted by pins (33) on the ducts (2-4) respectively and are suspended by wire ropes (11) from the next upper duct.
Patent GB-236648-A (GB)
Title: Improvements in radio receivers
IPC: H04B1/16
Filed: 1924-04-09
Abstract: 236,648. Round, H. J., and Rust, N. M. April 9, 1924. Oscillation generators; receiving systems and apparatus; non-thermionic amplifiers.-A crystal or oxide-film loose-contact or similar combination, of the type commonly used for rectification is arranged so as to give a negative resistance characteristic, and is thus utilized to reduce the damping either of a wireless receiving aerial, or of a rejector circuit for preventing interference. The arrangement is also capable of generating high-frequency oscillations, In certain circumstances the generated oscillations are automatically quenched, and a superregenerated effect is obtained. Arsenite, silicon, zincite, tellurium, magnesite, and iron pyrites are specified as suitable crystals. Or zinc, aluminium, iron. copper, and nickel plates may be used, upon which a film of oxide is first formed by striking an arc against the metal surface. The sensitivity of the crystal substances previously mentioned is increased by similarly fusing the surface by means of an are discharge from a small carbon electrode. As shown in Fig. 1, the regenerative crystal and catswhisker contact 3, 4 is shunted, in series with a condenser 2, and in parallel with a high resitance 5 and a battery 6, across the aerial inductance 1. The detecting circuit B, comprising a carborundum crystal 7 and the phones 8, is arranged across the aerial in parallel with the crystal regenerative circuit A, as shown. Either of the circuits A or B, or both, may be inductively coupled to the aerial. Fig. 4 shows two regenerative circuits A branched directly across the aerial inductance 1, and a third regenerative circuit A, in parallel with a detector circuit B, inductively coupled to the aerial.
Patent GB-542080-A (GB)
Title: Process and apparatus for the production of plastic sheet material
IPC: B29C33/36
Filed: 1940-05-22
Abstract: 542,080. Casting films. DREYFUS, H. May 22, 1940, Nos. 9058/40 and 4609/41. [Class 2 (ii)] A liquid filmforming composition is fed continuously on to a series of film-casting plates 7 moved relatively to the feeding hopper 17 ; - the layer of composition cast on each plate is allowed to. set before the casting of another layer, and the plates are finally removed from the apparatus for the purpose of stripping the layers from them. The plates 7 may be of glass, and are carried by trucks 6 on an endless track 4 which passes through a drying tunnel 1 consisting of two straight lengths 2 joined by semi-circular lengths 3. The trucks 6 are connected by loop couplings 8 and are driven by an endless chain 10 in a pit 11 below the track 4. One or more chains may be used, and lugs 12 on the chains engage lugs 13 on the trucks. The hopper 17 is placed near the point 16 above the trucks and the plates 7 can receive as many layers of composition as required. When the desired film thickness is reached, trucks are withdrawn from the tunnel 1 to a loop 21 by means of points 22 and a door 23. At the point 25 on this loop the plates 7 are lifted from the trucks and transferred to a soaking station 27 and a stripping station 28. From this the films are passed to a seasoning chamber 29 and the empty plates are returned to the trucks, ready for re-use. In a modification, the glass plates are carried by auxiliary trucks supported on main trucks, from which they can be removed laterally for further treatment when the depositions reach the desired thickness. In a further modification, tracks are arranged in radial tunnels opening from-a central turntable, so that trucks carrying the plates can be run into one of the tunnels where they remain stationary while drying takes place and from which they are removed for further treatment. The hopper is arranged over the turn-table. Specifications 533,788, 538,024 and 540,530 are referred to.
Patent GB-116919-A (GB)
Title: Improvements in or relating to Mechanical Artificial Limbs.
Inventor: HOBBS EDWARD WALTER
IPC: A61F2/54
Filed: 1917-06-23
Abstract: 116,919. Hobbs, E. W. June 23, 1917. Limbs, artificial.- The fore-arm is formed of a flat strip-like member bent upon itself and connected at its ends to a bucket for the stump of the patient's arm or to the pivot of an elbow joint. The forearm also carries a tube or socket to receive a spigot on an artificial hand or the like. The tube or socket C for the spigot on the artificial hand is secured between parallel parts at the middle bent part of the strip A forming the artificial fore-arm. A locking-pin, recessed on its under surface, engages a transverse tube and is operated by a wing-nut E<2> to bring it into interlocking engagement with a groove in the spigot. A similar tube or socket F<5> and locking-pin are provided on the U-shaped strip F forming the sideirons of the upper arm, to enable the artificial hand to be connected thereto. A spring F<6> on the socket F<5> engages a groove in the elbow pivot to hold it in place. The fore-arm is locked in desired angular position by a spring-bolt J<2> and notched disk J, and it is flexed by a thong H passing through a swivelled spiral eye H<2> and over the patient's shoulder and back to a band encircling the shoulder of the patient's sound arm.
Patent GB-670348-A (GB)
Title: Improvements in or relating to the removal of ionizable materials from aqueous solutions such as sugar solutions
IPC: C13B20/14
Filed: 1949-04-05
Abstract: Ion-exchange resins used in the treatment of aqueous liquids may be of the quaternary ammonium type described in Specification 654,706 or may be prepared by haloalkylating polystyrene, preferably with a chloromethyl ether and converting the product to a quaternary ammonium compound by treatment with a tertiary amine, preferably trimethylamine.  Other resins which may be used are the cross-linked polymers made by copolymerization of acrylic, methacrylic or maleic acid with a divinyl aromatic compound, preferred resins being those prepared by the suspension copolymerization of from 90 to 97 1/2 parts of acrylic or methacrylic acid with from 2 1/2 to 10 parts of divinyl benzene.ALSO:Ionizable materials are removed from aqueous solutions such as gelatine solutions (see Group V), or from sugar solutions or milk (see Group VI), by passing the liquid through a bed of anion-exchange resin containing quaternary ammonium groups and then through a bed of cation-exchange resin.  The quaternary ammonium groups may be attached through methylene groups to aromatic rings in the resin, which may be a styrene polymer or a styrene-divinyl-benzene copolymer.  The polar groups of the cation exchange resin may be carboxylic acid groups which may be in a mixed acid and sodium salt form; the resin itself may be a cross-linked polymer of a polymerizable acid, preferably acrylic, methacrylic, or maleic acid; or a copolymer of divinyl benzene and methacrylic acid. The solution may be passed through alternating beds of anion- and cation-exchange resin.  Specification 654,706 is referred to
Patent GB-1036182-A (GB)
Title: Improvements in or relating to amplifiers provided with negative feedback
IPC: H03F1/34
Filed: 1964-03-05
Abstract: 1,036,182. Transistor amplifying circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 5, 1964 [March 8, 1963], No. 9390/64. Heading H3T. [Also in Division G5] In an amplifier in which the output terminals are shunted by an additional circuit presenting a non-linear or variable impedance the additional circuit is connected to the output terminals via a series impedance and the junction of the series impedance and additional circuit is connected to a feedback path having a feedback factor such that the signal appearing across the output terminals is independent of the impedance of the additional circuit. In an em bodiment, e.g. a magnetic tape recorder, in which transistor 4 feeds recording head 6 via series resistor 5 and the recording level is monitored by means of rectifier-fed meter 8, distortion of the output due to the rectifier is prevented by connecting resistor R1 in series with it and taking negative feedback from the junction point to the base of the transistor over resistor 9. It is shown in the Specification that the necessary condition is for the feedback factor to equal the output impedance of the amplifier with open output circuit, divided by the impedance of resistor R1 and also the gain of the amplifier with open output circuit. The output impedance of the amplifier may be reduced by means of an additional feedback; e.g. a resistor is provided between collector and base of the transistor. In addition, any frequencydependence of the amplification of the amplifier may be compensated for by replacement of resistor R1 or 9 by a corresponding impedance network.
Patent GB-622864-A (GB)
Title: Improvements in and relating to the handling of particulate materials
IPC: B01J8/00
Filed: 1947-04-09
Abstract: 622,864. Pneumatic conveyers. CHALLIS, E. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 9, 1947, No. 9393. [Class 78 (i)] A process for feeding particulate solid material in a substantially continuous flow comprises intermittently supplying particulate solid material to one branch of a bifurcated vessel, the branches of which extend upwards from their junction, maintaining the particulate solid material in both branches of the vessel in the fluidised state by the passage therethrough of a gas and feeding particulate solid material from the other branch of the bifurcated vessel, this other branch being closed at its upper end and the conduit through which particulate solid leaves it being in such a height from the junction of the branches that the particulate solid material flows therethrough in a substantially continuous smooth flow, the conduit being in substantially gas-tight connection with the bifurcated vessel. In the example shown in Fig. 1, pulverised coal is weighed out in batches in a suitably timed automatic weighing machine 1 and is passed through a shoot 2 into a vertical column 3 forming one branch of the bifurcated vessel. The other branch 8 of the vessel is formed by an enlargement 4 at the lower end of the column and a partition 5. Air is admitted through an inlet pipe 6 and a distributer 7 comprising a layer of regular shaped fragments of inert material having sufficient weight to remain undisturbed by the fluidising gas. Under conditions of equilibrium the head of pulverised coal maintained in the fluidised state in the column 3 by the stream of air admitted through the distributer 7 is balanced by the pressure in the vessel 10. Addition of batches of pulverised coal to the column 3 will cause pulverised coal to flow from the limb 8 into the vessel 10. By suitably adjusting the velocity of the air and the rate of inlet of coal to the column 3 the intermittent supply is converted into a continuous smooth flow from the limb 8 to the vessel 10. In the example shown in Fig. 2, particulate solid material is fed into a vessel 20 which operates at a reduced pressure. The weighed material is passed into limb 13 of the bifurcated vessel which is at a lower level than the other limb 14. The gas enters through a pipe 17 and distributer 18 and leaves the column 13 by a pipe 19. The limb 14 communicates with the vessel 20. In the equilibrium state, the head of fluid material in the limb 14 is balanced by the pressure in the vessel 20. On addition of batches of particulate material to the column 13 particulate material will flow from the limb 14 to the vessel 20. Specification 607,723 is referred to.
Patent GB-113396-A (GB)
Title: Improved Gas Heated Radiator or Stove.
Inventor: WATTS CHARLES JAMES
IPC: F24C3/04
Filed: 1917-06-29
Abstract: 113,396. Watts, C. J. June 29, 1917. Gas stoves.-A reflector stove made of parts which may be easily packed and assembled comprises gas burners c inside an open-fronted reflector a, which is supported by struts d at its side. The burners c, which are luminous-flame burners, are mounted on a gas pipe which passes horizontally through the struts d and the body a, and is secured by nuts. In modifications, the struts d are extended forwards under the reflector a to form a support for its lower end, or are replaced by a bent-wire support l, Fig. 4, attached at m to the gas pipe and to the reflector. The front of the reflector is fitted with a guard n.