baber/WOPTO huggingface dataset:
Patent GB-896226-A (GB)
Title: A process for stripping hydrocyanic acid and hydrogen sulphide from waste waters containing the same
Inventor: KAUNERT PAUL
IPC: C10K1/00
Filed: 1960-04-12
Abstract: All the hydrogen sulphide and part of the hydrocyanic acid are stripped from waste water containing them in a first stage by means of gases which are practically inert to hydrocyanic acid, the remaining hydrocyanic acid is removed in a second stage by means of gases which are also inert to hydrocyanic acid and the gases from the first stage are used to agitate the acid bath in a saturator for the production of ammonium sulphate so that the hydrogen sulphide content of the gases is used up; the hydrocyanic acid from the second stage is either purified or used to make cyanogen compounds.  Either or both of the first and second stages may be effected as a plurality of steps.  The first stage may be carried out in a continously operating stripping column, e.g. a packed column, a bubble-tray column or a multi-stage spraying column without insertions, such that the inert gases are introduced at the base of the column and the gases enriched in hydrogen sulphide are discharged at the top of the column. Alternatively the inert gases may be introduced into the column at a plurality of points situated at different levels and the gases enriched in hydrogen sulphide discharged at a short distance below the next level at which the inert gases are introduced.  Air is specified as a suitable inert gas.  An example is given.ALSO:All the hydrogen sulphide and part of the hydrocyanic acid are stripped from waste water containing them in a first stage by means of gases which are practically inert to hydrocyanic acid, the remaining hydrocyanic acid is removed in a second stage by means of gases which are also inert to hydrocyanic acid and the gases from the first stage are used to agitate the acid baths in a saturator for the production of ammonium sulphate so that the hydrogen sulphide of the gases is used up; the hydrocyanic acid from the second stage is either purified or used to make cyanogen compounds.  Either or both of the first and second stages may be effected in a plurality of steps.  The first stage may be carried out in a continuously operating stripping column, e.g. a packed column, a bubble-tray column or multi-stage spraying column without insertions such that the inert gases are introduced at the base of the column and gases enriched in hydrogen sulphide are discharged at the top of the column.  Alternatively the inert gases may be introduced into the column at a plurality of points situated at different levels and the gases enriched in hydrogen sulphide discharged at a short distance below the next level at which the inert gases are introduced.  Air is specified as a suitable inert gas.  An example is given.
Patent GB-1479526-A (GB)
Title: Soft contact lens
IPC: G02C7/04
Filed: 1975-03-27
Abstract: 1479526 Soft contact lenses P FANTI 27 March 1975 [28 March 1974] 13008/75 Heading G2J A soft contact lens has flattened crescent-shaped regions 2, 4 adjacent the lens periphery, the lens edge at 7 being bevelled. The regions 2, 4 which may be of a shape other than crescent serve to orientate the lens on the eye. The axis of symmetry of the regions 2, 4 may be marked on the lens, so that the inclination to the horizontal, if any, of the axis when the lens is fitted to the eye may be measured. If desired, the lens may have only one flattened region.
Patent GB-861662-A (GB)
Title: Apparatus for forming moulds for use in casting
IPC: B22D13/10
Filed: 1958-04-24
Abstract: 861,662. Moulding-machines; casting-machines. HERMAN PNEUMATIC MACHINE CO. April 24, 1958 [Sept. 5, 1957], No. 13015/58. Class 83 (1). Moulding-apparatus comprises a flask 4 into which a member 36 can be introduced to control the volume of moulding material contained by the flask. In a centrifugal casting-machine of the type described in Specification 650, 683, two flasks 4 are rotated by motors 6 on a cradle 3, which may be moved about a pivot to place the flasks in upright positions so that they can be filled with moulding-material. On top of each flask is a bracket 7 supporting a bracket 10 carrying an adjustable flask closure plate 17, and movable angularly by a fluid-pressure operated rack-and-pinion device. The operative positions of the plates are determined by screws 33 on the arms 10. Removal of each plate allows either the insertion of a mould material compacting mandrel, or the with drawal of a casting. The displacing member 36 on each plate 17 determines the amount of mould material entering the flask. Specifications 669,492 and 861,663 also are referred to.
Patent GB-455144-A (GB)
Title: Improvements in the lubrication of shaft or spindle bearings
IPC: F16N7/36
Filed: 1936-05-04
Abstract: 455,144. Lubricating bearings. WHITE, J. W., c/o White & Sons, R., Railway Works, VVidnes, Lancashire. May 4,1936, No. 13050 /35. [Class 12 (i)] In a bearing, for a pulley 3 or the like revolving on a vertical or inclined stub spindle 2, in which a groove 10 in the bearing surface communicates, as by a central hole 8 in the spindle, with upper and lower reservoirs 11, 6, respectively, the upper reservoir 11 is formed by bevelling the bearing bushing 4 itself.
Patent GB-726126-A (GB)
Title: Improvements in or relating to tobacco desuckering bactericidal composition
IPC: A24B15/32
Filed: 1953-05-11
Abstract: An emulsifiable tobacco desuckering composition comprises a petroleum mineral white oil having a specific gravity in the range of 0.800-0.885, a boiling point predominantly in the range of 550-1,000 DEG F., being substantially free of aromatics, and a viscosity of 80-370 ssu at 100 DEG F., in an amount of from 89.0-99.75 volume per cent; an oil-soluble non-ionic or anionic synthetic emulsifier in an amount of from 0.2-10 volume per cent, and an N-trichloromethylthio imide of a dicarboxylic acid in an amount of from 0.05 to 1.0 weight per cent.  The white oils are aromatic substantially free of constituents and may be prepared by treating petroleum distillates with fuming or concentrated sulphuric acid.  Specified non-ionic emulsifiers are Antarox A 401 (R.T.M.) an alkyl aryl polyoxyethylene glycol ether; Nonisol 210, polyethylene glycol oleate; Triton X45 (R.T.M.) an aklyated aryl polyether alcohol; and a petroleum sulphonate modified with a minor amount of a non-ionic emulsifier. Specified N-tricholoromethylthio imides of dicarboxylic acids are N-trichloromethylthiotetrahydrophthalimide, N-trichloromethylthiophthalimide, N-trichloromethylthio-succinimide, N-trichloromethylthio endomethylenetetra-hydrophthalimide, and chlorinated N-trichloromethylthio - tetra - hydrophthalimide.  The composition before use is emulsified with water preferably between 1/2 and 2 volumes of water per volume of the concentrate.  Aqueous emulsions containing 50 per cent. oil and 0.2-1.0 per cent. emulsifier and 0.25 weight per cent. N-trichloromethylthio imide of a dicarboxylic acid are especially effective.  Specification 666,636 is referred to.
Patent GB-131289-A (GB)
IPC: C01G37/14
Abstract: 131,289. Soc. Industrielle de Produits Chimiques. Aug. 13, 1918, [Convention date]. Sodium bicarbonate.-Sodium chromate, by treatment in solution with carbon dioxide, is partially transformed into the dichromate, with the production of sodium bicarbonate. After filtering off the bicarbonate, the .dichromate is separated from the unchanged chromate by treatment with slaked lime in sufficient quantity to precipitate the dichromate as calcium chromate, followed by the decomposition of the latter with sodium bisulphate or sulphuric acid to produce sodium dichromate or chromic acid. The unchanged chromate solution is concentrated and again subjected to the above cycle of operations. Specifications 119,219 and 122,172 are referred to.
Patent GB-131856-A (GB)
IPC: H05B31/00
Abstract: 131,856. Newland, A. W. April 23, 1919. Arc lamps.-In a lamp suitable for a kinematograph, an electrode is held by two pairs of jaws and a pair of feed rollers, arranged so that when the electrode is being fed the main jaws are automatically disengaged. One feed roller 1 may be driven through bevel gear by a hand-wheel 19. On the shaft of the hand-wheel are two fast friction disks 20, 21, against one of which a loose disk 23 is pressed by a spring 24, or by weighted bell-cranks pivoted to a sleeve and bearing at their elbows against the second fast disk 21. A pin 31 on the loose disk is coupled by a link 30 to one of the main jaws 26, which is attached at its other end to the frame by a pivot 28, the other main jaw 25 being a fixture. A spring 32 or weighted lever closes the main jaws when the hand-wheel is released. A guide 26<a> and screw 33 restrict the movement of the jaw 26. The other roller 2 is mounted in a carriage 13 provided with pins or rollers 14 working in slots in the frame. Springs 16 or a weighted lever draw the carriage towards the first roller 1. Between the rollers and the main jaws are two auxiliary jaws 34, 36, one attached to the frame and the other to the carriage. These retain the carbon stump when fed past the rollers. A new carbon can be pushed through the rollers and jaws. ejecting the stump. Below the main jaws is a shield, the space between which and the frame may be packed with asbestos.
Patent GB-1515596-A (GB)
Title: Treatment of ores or metallurgical by-products containing arsenic and antimony
IPC: C22B3/06
Filed: 1976-04-01
Abstract: 1515596 Removal of arsenic and antimony from ores METALLURGIEHOBOKEN-OVERPELT 1 April 1976 [1 April 1975 14 May 1975] 13244/76 Heading C1A Ores or metallurgical by-products containing As and Sb are leached in acid solution at 20-200C under pressure with oxygen, or gas containing free oxygen, and arsenic and/or phosphorus are added to give the molar ratio of (As + 4P): Sb of at least 8 in the leach mixture. The arsenic and antimony dissolved in the leach solution may be simultaneously or separately extracted in liquid-liquid extraction processes by varying the quantity of phosphoric acid ester, phosphorous, phosphoric or phosphinous acid esters and organophosphoric compounds which are used as extractants combined with 2-30% by volume of an alkylated 8- hydroxyquinoline and inert organic diluents. After extraction, the organic liquor may be regenerated by treatment with a base or reducing agent. Co, Ni and Cu are dissolved as sulphates when speiss is leached with H 2 SO 4  + (H 3 AsO 4  or H 3 PO 4 ).
Patent GB-856790-A (GB)
Title: Improvements in or relating to ignition means for internal combustion engines
Inventor: GUTTER GERHARD
IPC: F02C7/266
Filed: 1959-04-18
Abstract: 856,790. Non-atmospheric pilot jets. ENTWICKLUNGSBAU PIRNA VEB. April 18, 1959, No. 13308/59. Class 75(3). [Also in Group XII] An ignition device for a combustion chamber of an internal combustion engine comprises an ignition chamber 2 communicating with the combustion chamber 1, the ignition chamber having a fuel injection nozzle 3 disposed on the axis thereof, an ignition plug 4, and a swirl device 6 located in front of the injection nozzle air tapped from the main combustion chamber secondary air supply passing through the swirl device and being caused to swirl in the same direction as the fuel issuing from the fuel injector, the angle of the spray cone from the latter being thereby increased. The swirl device 6 comprises a ring member 7 having tangentially-directed air guides passages 8 on its upper surface, air flowing through the ducts 10 as indicated by the arrows passing through the guide passages 8 and being caused to swirl in the same direction as the fuel discharged from the injector 3. The ring member 7 is also formed adjacent its periphery with axiallyextending ducts 9 through which combustionsupporting air also enters the ignition chamber.
Patent GB-912960-A (GB)
Title: Uranium base alloy
IPC: G21C3/60
Filed: 1960-04-14
Abstract: A uranium alloy suitable for use as a reactor fuel material has the following percentage composition by weight: .Mo...2-6 .Al...0.1-1 .U the remainder... U.S.A. Specification 2,999,058 is referred to
Patent GB-479991-A (GB)
Title: Improvements in selectivity control for radio receivers
IPC: H03G5/26
Filed: 1937-05-11
Abstract: 479,991. Valve circuits for wireless reception. HAZELTINE CORPORATION. May 11, 1937, No. 13450. Convention date, June 12, 1936. [Class 40 (v)] The band-width of a band-pass filter in a radio receiver is automatically adjusted directly as the desired signal amplitude and inversely as the amplitude of undesired signals on adjacent frequencies, the mean resonant frequency of the filter being simultaneously shifted away from the undesired frequency. The band-pass filter 14, Fig. 1, comprises two loosely coupled tuned I.F. circuits 19, 20 and 21, 22, resistances 23, 24 being included in their capacity and inductance arms respectively. The input circuits of tuning valves 25, 26 are connected through condensers 27 across the resistances 23, 24 respectively their anode circuits being completed through the inductances 19, 21 respectively. The grid biasses of valves 25, 26 are dependent upon the outputs of the rectifiers 42 ... 44 in a control unit 31, which are fed from circuits tuned 10 KC. below the I.F., to the I.F., and 10 KC. above the I.F. respectively. The rectified output from rectifier 43 is applied to bias both the valves 25, 26 more positively thus increasing the apparent capacity in circuit 19, 20 and decreasing the apparent inductance in circuit 21, 22 and symmetrically expanding the band-width of the filter with increase in amplitude of the desired signal. Superimposed on this bias voltage, the valves 25, 26 have a negative bias voltage derived from the rectifiers 42, 44 respectively, which narrow the pass band away from the interfering frequency. In a modification, Fig. 2 (not shown), only two discriminator circuits and rectifiers are used, tuned above and below the desired I.F., and in conjunction with an A.V.C. system responsive more to adjacent interfering signals than to the required signal, provide the required correction characteristic. The discriminator circuits may be fed from a point in the receiver preceding the controlled stage.
Patent GB-759960-A (GB)
Title: Improvements in or relating to electric motor stator with molded insulation
IPC: H02K3/32
Filed: 1954-05-07
Abstract: 759,960. Electric motor coils and insulation. REDMOND CO., Inc. May 7, 1954 [Oct. 14, 1953], No. 13487/54. Class 35. An electric motor stator comprising pole pieces 4 projecting from a ring and terminating in pole faces 10 has electrically insulating material moulded in situ on and substantially completely covering the side and end surfaces 16, 18 of the pole pieces 4 and the radially inner surface of the ring for a length corresponding to the axial length of the pole pieces; the insulating material also forms tongues 52 extending substantially in axial alignment with the pole faces 10 and other portions 50 radially spaced from the tongues and disposed adjacent the inner surface of the ring, the tongues 52 and portions 50 extending axially beyond the end surfaces 16 of the pole pieces 4 to define channels in which energizing coils 14 are subsequently wound. As shown, the stator laminations 2 are mounted in a ring 6 of non-magnetic material, e.g. aluminium, which may be die cast about the laminations, and each pole piece 4 may have a notch 20 in which is disposed a shading coil 24 which may be a loop of strip copper or an aluminium die casting. Suitable insulating material and a die in which it is moulded about the core are described in the Specification.
Patent GB-135125-A (GB)
IPC: C25C1/12
Abstract: 135,125. Sundberg, A. G., and Thomasson, T. E. May 6, 1919. Copper sulphate and other copper salts.-The composition of an electrolyte from which copper is being deposited is maintained by circulating it over oxidized cement copper. The electrolyte may contain 3-4 per cent of copper as sulphate and 10-15 per cent of free sulphuric acid, but other copper salts may be employed. The process is carried out by withdrawing in unit time a quantity of electrolyte containing free acid equivalent to the copper deposited in unit time, and circulating this liquor to a vessel in which it acts upon an excess of oxidized cement copper and back to the electrolytic cell, after filtration if necessary.
Patent GB-418358-A (GB)
Title: Improvements in hand-bag frames
IPC: A45C13/04
Filed: 1934-05-04
Abstract: 418,358. Bags. METALLWARENFABRIK SCHARFENBERG & TEUBERT GES., and SCHARFENBERG, G., Breitungenon-Werra, Germany. May 4, 1934, No. 13547. [Class 133.] An under-arm bag is provided with a mouth frame adapted to open widely at one end to afford access to the bag. The frame comprises a pair of upper members a, pivotally connected at one end either directly or, as shown, through very short extensions of the members, by means of a joint c, and formed at the other end with depending portions a<1> connected in the usual manner at d. The mouth frame members may be each formed of two or more portions rigidly or pivotally connected together. Ball-catch or other closure means e are provided at the widely-opening part of the frame. A thumb strap f is provided on the side of the bag.
Patent GB-1420723-A (GB)
Title: Anti-friction bearing idler essemblies
IPC: F02B67/06
Filed: 1974-03-28
Abstract: 1420723 Mounting rotating parts on shafts; pulleys GENERAL MOTORS CORP 28 March 1974 [21 May 1973] 13744/74 Headings F2U and F2Q An idler 30 is supported on a bracket 28 by a ball bearing assembly 32, the outer race 64 of the bearing 32 being a press fit within a cylindrical portion 58 of the bracket, this having a radial flange 60 to axially support race 64 in one direction, and the idler 30 having a tubular portion 74 which is press-fitted in the inner race 81 of the bearing 32, a shoulder 78 limiting the axial movement of inner race 81 on tubular portion 74 in one direction. After assembly, flanges 83 and 68 are formed to retain the tubular portion 74 within the inner race and the outer race within the cylindrical portion 58, respectively. The idler 30 shown is formed as a pulley with a V-groove 24 for a belt 23, the groove 24 being radially outside, and in the same plane as, bearing 32 to remove other than radial stresses from the bearing. The bracket 28 can be bolted to an I.C. engine and the pulley from part of a belt drive to accessories, a bolt 38 securing bracket to engine engaging an arcuate slot of the bracket so that the bracket can be pivoted about a bolt 39 to vary the belt tension.
Patent GB-103812-A (GB)
Title: Gas Analysing Apparatus.
IPC: G01N7/04
Filed: 1916-09-27
Abstract: 103,812. Aktiebolaget Ingeniorsfirma F. Egnell. Jan. 29, 1916, [Convention date]. Gas analysis.-Two gas analysis apparatus are combined for estimating different gas constituents together or separately as desired, by making one of the following parts common to the two apparatus, viz. :-the first measuring-vessel, the second measuring-vessel, the absorption vessel, and the recording pen. The second measuring-vessel may be in series or in parallel with the absorption vessel. Many modifications are described. In that shown in Fig. 1, gas from a is drawn into the first measuring-vessel c through a liquid seal b by means of the falling of a liquid in a pipe g, and by the rising of the liquid the gas is expelled through a liquid seal e and pipe h through one or other of pipes i, l, the pipe i leading to an absorption vessel k, for instance, containing potash for absorbing carbonic acid, and thence by a pipe o to the second measuring-vessel p, and the pipe l leading through a cock m to an absorption or reaction vessel n containing, for instance, pyrophoric iron for removing oxygen, and thence by a pipe q to the vessel p. The arrangement shown in Fig. 2 is similar, except that the vessel p is placed in parallel with the absorbers k, n, the pipe h being branched for this purpose; the absorber k has an open vessel s dipping into it, so that the liquid may rise in the vessel s when displaced by the gas, so as to increase the pressure in the whole system and operate the vessel p. In Fig. 3, the first measuring-vessel is shown made in two parts c', c<2>, and as the liquid rises, the gas from one half is expelled through the absorber n, the absorber k acting as a liquid seal, and the second half, on the closing of the junction of pipes r, t by the ascending mercury, is expelled through the absorber k. The cock m may be arranged to allow both parts of the gas to reach the vessel p, as shown, or if the pipes q, o are connected but the pipe r shut off by the cock m, an oxygen estimation is obtained, while if the pipes are not connected through the cock m, a carbonic-acid estimation is obtained. Figs. 18 and 20 show diagramatically modifications comprising the first measuring-vessel M' divided as in Fig. 3, absorption vessels A', A<2>, A<3>, the vessels A<3> shown in Fig. 18 being capable of being cut out by a by-pass pipe V, the second measuring-vessels M<2>, M<3> for the two gas-streams respectively, and the recording- apparatus R<1>, R<2>. Specifications 100,066 and 101,979 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that other principal parts of the recording apparatus, namely the bell or the paper, may be common to the two analysis apparatus instead of having the recording pen common. This subject-matter does not appear in the Specification as accepted.
Patent GB-239285-A (GB)
Title: Improved means for protecting the eyes of the driver of an automobile from glare
IPC: B60J3/02
Filed: 1924-06-05
Abstract: 239,285. Bolph, W. M. June 5, 1924. Anti-dazzle screens for drivers.-A device for protecting the eyes of drivers of motor or like vehicles from the glare of approaching headlights comprises a screen E of fan-like constructions formed of a number or pivotally mounted strips of tinted translucent material normally disposed in a casing A attachable to the windscreen or similar support and adapted to be spread open for use or closed by rotating one side or arm about a pivot C bv means of either a hand-knob or a Bowden-wire control. In the construction shown, the fan consists of a series of narrow sticks of tinted celluloid each provided with spaced upstanding tongues F, so that. by rotating one extreme stick, the remaining sticks are successively operated to spread or close the fan as the case may be.
Patent GB-509185-A (GB)
Title: Astronomical navigation calculator
IPC: G01C21/02
Filed: 1938-05-09
Abstract: 509,185. Calculating - apparatus. AOYAMA, S., and SAZAKI, T. May 9, 1938, No. 13827. Convention date, May 31, 1937. [Class 106 (i)] A slide-rule of the flat, straight type for use in astronomical navigation is formed with scales for solving the natural haversine # formula to obtain the hour angle and azimuth from the known data altitude, latitude and declination from the equations where the quantities a, h, d, l and z represent altitude, hour angle, declination, latitude and azimuth respectively. The rule as shown in Figs. 1 and 2, comprises a stock 1, a slide 2 and a cursor 3. On the upper edge of the slide is marked a log. scale 4 of cosines graduated left and right from an arbitary point K. On the adjacent edge of the stock is a corresponding scale 5 marked with angle values complementary to those of scale 4. The lower edge of the stock carries a log. scale 6 of natural haversines and the adjacent edge of the stock has a similar scale 7 with additional complementary angles. The outer edges of the stock carry log. scales 9, 10 of haversine.